[1/4] Remove SH support and all archos targets

This removes all code specific to SH targets

Change-Id: I7980523785d2596e65c06430f4638eec74a06061

1 files changed, 0 insertions, 978 deletions

diff --git a/firmware/target/sh/archos/ondio/ata_mmc.c b/firmware/target/sh/archos/ondio/ata_mmc.c
deleted file mode 100644
index f252e1c4ce..0000000000
--- a/firmware/target/sh/archos/ondio/ata_mmc.c
+++ /dev/null
@@ -1,978 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2004 by Jens Arnold
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-#include "config.h"
-#include "ata_mmc.h"
-#include "sdmmc.h"
-#include "kernel.h"
-#include "led.h"
-#include "sh7034.h"
-#include "system.h"
-#include "debug.h"
-#include "panic.h"
-#include "power.h"
-#include "string.h"
-#include "hwcompat.h"
-#include "adc.h"
-#include "bitswap.h"
-#include "storage.h"
-
-
-#ifdef HAVE_MULTIDRIVE
-#define MMC_NUM_DRIVES 2
-#else
-#define MMC_NUM_DRIVES 1
-#endif
-
-#define BLOCK_SIZE  512   /* fixed */
-
-/* Command definitions */
-#define CMD_GO_IDLE_STATE        0x40  /* R1 */
-#define CMD_SEND_OP_COND         0x41  /* R1 */
-#define CMD_SEND_CSD             0x49  /* R1 */
-#define CMD_SEND_CID             0x4a  /* R1 */
-#define CMD_STOP_TRANSMISSION    0x4c  /* R1 */
-#define CMD_SEND_STATUS          0x4d  /* R2 */
-#define CMD_SET_BLOCKLEN         0x50  /* R1 */
-#define CMD_READ_SINGLE_BLOCK    0x51  /* R1 */
-#define CMD_READ_MULTIPLE_BLOCK  0x52  /* R1 */
-#define CMD_WRITE_BLOCK          0x58  /* R1b */
-#define CMD_WRITE_MULTIPLE_BLOCK 0x59  /* R1b */
-#define CMD_READ_OCR             0x7a  /* R3 */
-
-/* Response formats:
-   R1  = single byte, msb=0, various error flags
-   R1b = R1 + busy token(s)
-   R2  = 2 bytes (1st byte identical to R1), additional flags
-   R3  = 5 bytes (R1 + OCR register)
-*/
-
-#define R1_PARAMETER_ERR 0x40
-#define R1_ADDRESS_ERR   0x20
-#define R1_ERASE_SEQ_ERR 0x10
-#define R1_COM_CRC_ERR   0x08
-#define R1_ILLEGAL_CMD   0x04
-#define R1_ERASE_RESET   0x02
-#define R1_IN_IDLE_STATE 0x01
-
-#define R2_OUT_OF_RANGE  0x80
-#define R2_ERASE_PARAM   0x40
-#define R2_WP_VIOLATION  0x20
-#define R2_CARD_ECC_FAIL 0x10
-#define R2_CC_ERROR      0x08
-#define R2_ERROR         0x04
-#define R2_ERASE_SKIP    0x02
-#define R2_CARD_LOCKED   0x01
-
-/* Data start tokens */
-
-#define DT_START_BLOCK               0xfe
-#define DT_START_WRITE_MULTIPLE      0xfc
-#define DT_STOP_TRAN                 0xfd
-
-/* for compatibility */
-static long last_disk_activity = -1;
-
-/* private variables */
-
-#ifdef CONFIG_STORAGE_MULTI
-static int mmc_first_drive = 0;
-#else
-#define mmc_first_drive 0
-#endif
-
-static struct mutex mmc_mutex SHAREDBSS_ATTR;
-
-static bool initialized = false;
-static bool new_mmc_circuit;
-
-static enum {
-    MMC_UNKNOWN,
-    MMC_UNTOUCHED,
-    MMC_TOUCHED 
-} mmc_status = MMC_UNKNOWN;
-
-static enum {
-    SER_POLL_WRITE,
-    SER_POLL_READ,
-    SER_DISABLED
-} serial_mode;
-
-static const unsigned char dummy[] = {
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
-};
-
-/* 2 buffers used alternatively for writing, including start token,
- * dummy CRC and an extra byte to keep word alignment. */
-static unsigned char write_buffer[2][BLOCK_SIZE+4];
-static int current_buffer = 0;
-static const unsigned char *send_block_addr = NULL;
-
-static tCardInfo card_info[2];
-#ifndef HAVE_MULTIDRIVE
-static int current_card = 0;
-#endif
-static bool last_mmc_status = false;
-static int countdown = -1; /* for mmc switch debouncing. -1 because the 
-                              countdown should not happen if the card
-                              is inserted at boot */
-static bool usb_activity;    /* monitoring the USB bridge */
-static long last_usb_activity;
-
-/* private function declarations */
-
-static int select_card(int card_no);
-static void deselect_card(void);
-static void setup_sci1(int bitrate_register);
-static void set_sci1_poll_read(void);
-static void write_transfer(const unsigned char *buf, int len)
-            __attribute__ ((section(".icode")));
-static void read_transfer(unsigned char *buf, int len)
-            __attribute__ ((section(".icode")));
-static unsigned char poll_byte(long timeout);
-static unsigned char poll_busy(long timeout);
-static unsigned char send_cmd(int cmd, unsigned long parameter, void *data);
-static int receive_cxd(unsigned char *buf);
-static int initialize_card(int card_no);
-static int receive_block(unsigned char *inbuf, long timeout);
-static void send_block_prepare(void);
-static int send_block_send(unsigned char start_token, long timeout,
-                           bool prepare_next);
-static void mmc_tick(void);
-
-/* implementation */
-
-static void enable_controller(bool on)
-{
-    PBCR1 &= ~0x0CF0;      /* PB13, PB11 and PB10 become GPIO,
-                            * if not modified below */
-    if (on)
-        PBCR1 |= 0x08A0;   /* as SCK1, TxD1, RxD1 */
-
-    and_b(~0x80, &PADRL);  /* assert flash reset */
-    sleep(HZ/100);
-    or_b(0x80, &PADRL);    /* de-assert flash reset */
-    sleep(HZ/100);
-    card_info[0].initialized = false;
-    card_info[1].initialized = false;
-}
-
-void mmc_enable_int_flash_clock(bool on)
-{
-    /* Internal flash clock is enabled by setting PA12 high with the new
-     * clock circuit, and by setting it low with the old clock circuit */
-    if (on ^ new_mmc_circuit)
-        and_b(~0x10, &PADRH);     /* clear clock gate PA12 */
-    else
-        or_b(0x10, &PADRH);       /* set clock gate PA12 */
-}
-
-static int select_card(int card_no)
-{
-    mutex_lock(&mmc_mutex);
-    led(true);
-    last_disk_activity = current_tick;
-
-    mmc_enable_int_flash_clock(card_no == 0);
-
-    if (!card_info[card_no].initialized)
-    {
-        setup_sci1(7); /* Initial rate: 375 kbps (need <= 400 per mmc specs) */
-        write_transfer(dummy, 10); /* allow the card to synchronize */
-        while (!(SSR1 & SCI_TEND));
-    }
-
-    if (card_no == 0)             /* internal */
-        and_b(~0x04, &PADRH);     /* assert CS */
-    else                          /* external */
-        and_b(~0x02, &PADRH);     /* assert CS */
-
-    if (card_info[card_no].initialized)
-    {
-        setup_sci1(card_info[card_no].bitrate_register);
-        return 0;
-    }
-    else
-    {
-        return initialize_card(card_no);
-    }
-}
-
-static void deselect_card(void)
-{
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-    or_b(0x06, &PADRH);           /* deassert CS (both cards) */
-
-    led(false);
-    mutex_unlock(&mmc_mutex);
-    last_disk_activity = current_tick;
-}
-
-static void setup_sci1(int bitrate_register)
-{
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-
-    SCR1 = 0;                     /* disable serial port */
-    SMR1 = SYNC_MODE;             /* no prescale */
-    BRR1 = bitrate_register;
-    SSR1 = 0;
-
-    SCR1 = SCI_TE;                /* enable transmitter */
-    serial_mode = SER_POLL_WRITE;
-}
-
-static void set_sci1_poll_read(void)
-{
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-    SCR1 = 0;                     /* disable transmitter (& receiver) */
-    SCR1 = (SCI_TE|SCI_RE);       /* re-enable transmitter & receiver */
-    while (!(SSR1 & SCI_TEND));   /* wait for SCI init completion (!) */
-    serial_mode = SER_POLL_READ;
-    TDR1 = 0xFF;                  /* send do-nothing while reading */
-}
-
-static void write_transfer(const unsigned char *buf, int len)
-{
-    const unsigned char *buf_end = buf + len;
-    register unsigned char data;
-
-    if (serial_mode != SER_POLL_WRITE)
-    {
-        while (!(SSR1 & SCI_TEND)); /* wait for end of transfer */
-        SCR1 = 0;                   /* disable transmitter & receiver */
-        SSR1 = 0;                   /* clear all flags */
-        SCR1 = SCI_TE;              /* enable transmitter only */
-        serial_mode = SER_POLL_WRITE;
-    }
-
-    while (buf < buf_end)
-    {
-        data = fliptable[(signed char)(*buf++)]; /* bitswap */
-        while (!(SSR1 & SCI_TDRE));              /* wait for end of transfer */
-        TDR1 = data;                             /* write byte */
-        SSR1 = 0;                                /* start transmitting */
-    }
-}
-
-/* don't call this with len == 0 */
-static void read_transfer(unsigned char *buf, int len)
-{
-    unsigned char *buf_end = buf + len - 1;
-    register signed char data;
-
-    if (serial_mode != SER_POLL_READ)
-        set_sci1_poll_read();
-
-    SSR1 = 0;                     /* start receiving first byte */
-    while (buf < buf_end)
-    {
-        while (!(SSR1 & SCI_RDRF)); /* wait for data */
-        data = RDR1;                /* read byte */
-        SSR1 = 0;                   /* start receiving */
-        *buf++ = fliptable[data];   /* bitswap */
-    }
-    while (!(SSR1 & SCI_RDRF));     /* wait for last byte */
-    *buf = fliptable[(signed char)(RDR1)]; /* read & bitswap */
-}
-
-/* returns 0xFF on timeout, timeout is in bytes */
-static unsigned char poll_byte(long timeout)
-{
-    long i;
-    unsigned char data = 0;       /* stop the compiler complaining */
-
-    if (serial_mode != SER_POLL_READ)
-        set_sci1_poll_read();
-
-    i = 0;
-    do {
-        SSR1 = 0;                   /* start receiving */
-        while (!(SSR1 & SCI_RDRF)); /* wait for data */
-        data = RDR1;                /* read byte */
-    } while ((data == 0xFF) && (++i < timeout));
-
-    return fliptable[(signed char)data];
-}
-
-/* returns 0 on timeout, timeout is in bytes */
-static unsigned char poll_busy(long timeout)
-{
-    long i;
-    unsigned char data, dummy;
-    
-    if (serial_mode != SER_POLL_READ)
-        set_sci1_poll_read();
-
-    /* get data response */
-    SSR1 = 0;                     /* start receiving */
-    while (!(SSR1 & SCI_RDRF));   /* wait for data */
-    data = fliptable[(signed char)(RDR1)];  /* read byte */
-
-    /* wait until the card is ready again */
-    i = 0;
-    do {
-        SSR1 = 0;                   /* start receiving */
-        while (!(SSR1 & SCI_RDRF)); /* wait for data */
-        dummy = RDR1;               /* read byte */
-    } while ((dummy != 0xFF) && (++i < timeout));
-    
-    return (dummy == 0xFF) ? data : 0;
-}
-
-/* Send MMC command and get response. Returns R1 byte directly.
- * Returns further R2 or R3 bytes in *data (can be NULL for other commands) */
-static unsigned char send_cmd(int cmd, unsigned long parameter, void *data)
-{
-    static struct {
-        unsigned char cmd;
-        unsigned long parameter;
-        const unsigned char crc7;    /* fixed, valid for CMD0 only */
-        const unsigned char trailer;
-    } __attribute__((packed)) command = {0x40, 0, 0x95, 0xFF};
-
-    unsigned char ret;
-
-    command.cmd = cmd;
-    command.parameter = htobe32(parameter);
-
-    write_transfer((unsigned char *)&command, sizeof(command));
-
-    ret = poll_byte(20);
-
-    switch (cmd)
-    {
-        case CMD_SEND_CSD:        /* R1 response, leave open */
-        case CMD_SEND_CID:
-        case CMD_READ_SINGLE_BLOCK:
-        case CMD_READ_MULTIPLE_BLOCK:
-            return ret;
-
-        case CMD_SEND_STATUS:     /* R2 response, close with dummy */
-            read_transfer(data, 1);
-            break;
-
-        case CMD_READ_OCR:        /* R3 response, close with dummy */
-            read_transfer(data, 4);
-            break;
-
-        default:                  /* R1 response, close with dummy */
-            break;                /* also catches block writes */
-    }
-    write_transfer(dummy, 1);
-    return ret;
-}
-
-/* Receive CID/ CSD data (16 bytes) */
-static int receive_cxd(unsigned char *buf)
-{
-    if (poll_byte(20) != DT_START_BLOCK)
-    {
-        write_transfer(dummy, 1);
-        return -1;                /* not start of data */
-    }
-    
-    read_transfer(buf, 16);
-    write_transfer(dummy, 3);     /* 2 bytes dontcare crc + 1 byte trailer */
-    return 0;
-}
-
-
-static int initialize_card(int card_no)
-{
-    int rc, i;
-    int blk_exp, ts_exp, taac_exp;
-    tCardInfo *card = &card_info[card_no];
-
-    static const char mantissa[] = {  /* *10 */
-        0,  10, 12, 13, 15, 20, 25, 30,
-        35, 40, 45, 50, 55, 60, 70, 80
-    };
-    static const int exponent[] = {  /* use varies */
-        1, 10, 100, 1000, 10000, 100000, 1000000,
-        10000000, 100000000, 1000000000
-    };
-
-    if (card_no == 1)
-        mmc_status = MMC_TOUCHED;
-
-    /* switch to SPI mode */
-    if (send_cmd(CMD_GO_IDLE_STATE, 0, NULL) != 0x01)
-        return -1;                /* error or no response */
-
-    /* initialize card */
-    for (i = HZ;;)                /* try for 1 second*/
-    {
-        sleep(1);
-        if (send_cmd(CMD_SEND_OP_COND, 0, NULL) == 0)
-            break;
-        if (--i <= 0)
-            return -2;            /* timeout */
-    }
-
-    /* get OCR register */
-    if (send_cmd(CMD_READ_OCR, 0, &card->ocr))
-        return -3;
-    card->ocr = betoh32(card->ocr); /* no-op on big endian */
-
-    /* check voltage */
-    if (!(card->ocr & 0x00100000)) /* 3.2 .. 3.3 V */
-        return -4;
-
-    /* get CSD register */
-    if (send_cmd(CMD_SEND_CSD, 0, NULL))
-        return -5;
-    rc = receive_cxd((unsigned char*)card->csd);
-    if (rc)
-        return rc * 10 - 5;
-
-    blk_exp = card_extract_bits(card->csd, 83, 4);
-    if (blk_exp < 9) /* block size < 512 bytes not supported */
-        return -6;
-
-    card->numblocks = (card_extract_bits(card->csd, 73, 12) + 1)
-                   << (card_extract_bits(card->csd, 49, 3) + 2 + blk_exp - 9);
-    card->blocksize = BLOCK_SIZE;
-
-    /* max transmission speed, clock divider */
-    ts_exp = card_extract_bits(card->csd, 98, 3);
-    ts_exp = (ts_exp > 3) ? 3 : ts_exp;
-    card->speed = mantissa[card_extract_bits(card->csd, 102, 4)]
-                * exponent[ts_exp + 4];
-    card->bitrate_register = (FREQ/4-1) / card->speed;
-
-    /* NSAC, TAAC, read timeout */
-    card->nsac = 100 * card_extract_bits(card->csd, 111, 8);
-    card->taac = mantissa[card_extract_bits(card->csd, 118, 4)];
-    taac_exp = card_extract_bits(card->csd, 114, 3);
-    card->read_timeout = ((FREQ/4) / (card->bitrate_register + 1)
-                         * card->taac / exponent[9 - taac_exp]
-                         + (10 * card->nsac));
-    card->read_timeout /= 8;      /* clocks -> bytes */
-    card->taac = card->taac * exponent[taac_exp] / 10;
-
-    /* r2w_factor, write timeout */
-    card->r2w_factor = BIT_N(card_extract_bits(card->csd, 28, 3));
-    card->write_timeout = card->read_timeout * card->r2w_factor;
-
-    if (card->r2w_factor > 32) /* Such cards often need extra read delay */
-        card->read_timeout *= 4;
-
-    /* switch to full speed */
-    setup_sci1(card->bitrate_register);
-
-    /* always use 512 byte blocks */
-    if (send_cmd(CMD_SET_BLOCKLEN, BLOCK_SIZE, NULL))
-        return -7;
-
-    /* get CID register */
-    if (send_cmd(CMD_SEND_CID, 0, NULL))
-        return -8;
-    rc = receive_cxd((unsigned char*)card->cid);
-    if (rc)
-        return rc * 10 - 8;
-
-    card->initialized = true;
-    return 0;
-}
-
-tCardInfo *mmc_card_info(int card_no)
-{
-    tCardInfo *card = &card_info[card_no];
-    
-    if (!card->initialized && ((card_no == 0) || mmc_detect()))
-    {
-        select_card(card_no);
-        deselect_card();
-    }
-    return card;
-}
-
-/* Receive one block with DMA and bitswap it (chasing bitswap). */
-static int receive_block(unsigned char *inbuf, long timeout)
-{
-    unsigned long buf_end;
-
-    if (poll_byte(timeout) != DT_START_BLOCK)
-    {
-        write_transfer(dummy, 1);
-        return -1;                /* not start of data */
-    }
-
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-
-    SCR1 = 0;                     /* disable serial */
-    SSR1 = 0;                     /* clear all flags */
-    
-    /* setup DMA channel 0 */
-    CHCR0 = 0;                    /* disable */
-    SAR0 = RDR1_ADDR;
-    DAR0 = (unsigned long) inbuf;
-    DTCR0 = BLOCK_SIZE;
-    CHCR0 = 0x4601;               /* fixed source address, RXI1, enable */
-    DMAOR = 0x0001;
-    SCR1 = (SCI_RE|SCI_RIE);      /* kick off DMA */
-
-    /* DMA receives 2 bytes more than DTCR2, but the last 2 bytes are not
-     * stored. The first extra byte is available from RDR1 after the DMA ends,
-     * the second one is lost because of the SCI overrun. However, this
-     * behaviour conveniently discards the crc. */
-
-    yield();                      /* be nice */
-    
-    /* Bitswap received data, chasing the DMA pointer */
-    buf_end = (unsigned long)inbuf + BLOCK_SIZE;
-    do
-    {
-        /* Call bitswap whenever (a multiple of) 8 bytes are
-         * available (value optimised by experimentation). */
-        int swap_now = (DAR0 - (unsigned long)inbuf) & ~0x00000007;
-        if (swap_now)
-        {
-            bitswap(inbuf, swap_now);
-            inbuf += swap_now;
-        }
-    }
-    while ((unsigned long)inbuf < buf_end);
-
-    while (!(CHCR0 & 0x0002));    /* wait for end of DMA */
-    while (!(SSR1 & SCI_ORER));   /* wait for the trailing bytes */
-    SCR1 = 0;
-    serial_mode = SER_DISABLED;
-
-    write_transfer(dummy, 1);     /* send trailer */
-    last_disk_activity = current_tick;
-    return 0;
-}
-
-/* Prepare a block for sending by copying it to the next write buffer
- * and bitswapping it. */
-static void send_block_prepare(void)
-{
-    unsigned char *dest;
-
-    current_buffer ^= 1; /* toggle buffer */
-    dest = write_buffer[current_buffer] + 2;
-
-    memcpy(dest, send_block_addr, BLOCK_SIZE);
-    bitswap(dest, BLOCK_SIZE);
-
-    send_block_addr += BLOCK_SIZE;
-}
-
-/* Send one block with DMA from the current write buffer, possibly preparing
- * the next block within the next write buffer in the background. */
-static int send_block_send(unsigned char start_token, long timeout,
-                           bool prepare_next)
-{
-    int rc = 0;
-    unsigned char *curbuf = write_buffer[current_buffer];
-
-    curbuf[1] = fliptable[(signed char)start_token];
-    *(unsigned short *)(curbuf + BLOCK_SIZE + 2) = 0xFFFF;
-
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-
-    SCR1 = 0;                     /* disable serial */
-    SSR1 = 0;                     /* clear all flags */
-
-    /* setup DMA channel 0 */
-    CHCR0 = 0;                    /* disable */
-    SAR0 = (unsigned long)(curbuf + 1);
-    DAR0 = TDR1_ADDR;
-    DTCR0 = BLOCK_SIZE + 3;       /* start token + block + dummy crc */
-    CHCR0 = 0x1701;               /* fixed dest. address, TXI1, enable */
-    DMAOR = 0x0001;
-    SCR1 = (SCI_TE|SCI_TIE);      /* kick off DMA */
-
-    if (prepare_next)
-        send_block_prepare();
-    yield();                      /* be nice */
-
-    while (!(CHCR0 & 0x0002));    /* wait for end of DMA */
-    while (!(SSR1 & SCI_TEND));   /* wait for end of transfer */
-    SCR1 = 0;
-    serial_mode = SER_DISABLED;
-
-    if ((poll_busy(timeout) & 0x1F) != 0x05) /* something went wrong */
-        rc = -1;
-
-    write_transfer(dummy, 1);
-    last_disk_activity = current_tick;
-
-    return rc;
-}
-
-int mmc_read_sectors(IF_MD(int drive,)
-                     unsigned long start,
-                     int incount,
-                     void* inbuf)
-{
-    int rc = 0;
-    int lastblock = 0;
-    unsigned long end_block;
-    tCardInfo *card;
-#ifndef HAVE_MULTIDRIVE
-    int drive = current_card;
-#endif
-
-    card = &card_info[drive];
-    rc = select_card(drive);
-    if (rc)
-    {
-        rc = rc * 10 - 1;
-        goto error;
-    }
-
-    end_block = start + incount;
-    if (end_block > card->numblocks)
-    {
-        rc = -2;
-        goto error;
-    }
-
-    /* Some cards don't like reading the very last block with
-     * CMD_READ_MULTIPLE_BLOCK, so make sure this block is always
-     * read with CMD_READ_SINGLE_BLOCK. */
-    if (end_block == card->numblocks)
-        lastblock = 1;
-        
-    if (incount > 1)
-    {
-                     /* MMC4.2: make multiplication conditional */
-        if (send_cmd(CMD_READ_MULTIPLE_BLOCK, start * BLOCK_SIZE, NULL))
-        {
-            rc =  -3;
-            goto error;
-        }
-        while (--incount >= lastblock)
-        {
-            rc = receive_block(inbuf, card->read_timeout);
-            if (rc)
-            {
-                /* If an error occurs during multiple block reading, the
-                 * host still needs to send CMD_STOP_TRANSMISSION */
-                send_cmd(CMD_STOP_TRANSMISSION, 0, NULL);
-                rc = rc * 10 - 4;
-                goto error;
-            }
-            inbuf += BLOCK_SIZE;
-            start++;
-            /* ^^ necessary for the abovementioned last block special case */
-        }
-        if (send_cmd(CMD_STOP_TRANSMISSION, 0, NULL))
-        {
-            rc = -5;
-            goto error;
-        }
-    }
-    if (incount > 0)
-    {
-                     /* MMC4.2: make multiplication conditional */
-        if (send_cmd(CMD_READ_SINGLE_BLOCK, start * BLOCK_SIZE, NULL))
-        {
-            rc = -6;
-            goto error;
-        }
-        rc = receive_block(inbuf, card->read_timeout);
-        if (rc)
-        {
-            rc = rc * 10 - 7;
-            goto error;
-        }
-    }
-
-  error:
-
-    deselect_card();
-    
-    return rc;
-}
-
-int mmc_write_sectors(IF_MD(int drive,)
-                      unsigned long start,
-                      int count,
-                      const void* buf)
-{
-    int rc = 0;
-    int write_cmd;
-    unsigned char start_token;
-    tCardInfo *card;
-#ifndef HAVE_MULTIDRIVE
-    int drive = current_card;
-#endif
-
-    card = &card_info[drive];
-    rc = select_card(drive);
-    if (rc)
-    {
-        rc = rc * 10 - 1;
-        goto error;
-    }
-    
-    if (start + count  > card->numblocks)
-        panicf("Writing past end of card");
-
-    send_block_addr = buf;
-    send_block_prepare();
-
-    if (count > 1)
-    {
-        write_cmd   = CMD_WRITE_MULTIPLE_BLOCK;
-        start_token = DT_START_WRITE_MULTIPLE;
-    }
-    else
-    {
-        write_cmd   = CMD_WRITE_BLOCK;
-        start_token = DT_START_BLOCK;
-    }
-                 /* MMC4.2: make multiplication conditional */
-    if (send_cmd(write_cmd, start * BLOCK_SIZE, NULL))
-    {
-        rc = -2;
-        goto error;
-    }
-    while (--count >= 0)
-    {
-        rc = send_block_send(start_token, card->write_timeout, count > 0);
-        if (rc)
-        {
-            rc = rc * 10 - 3;
-            break;
-            /* If an error occurs during multiple block writing,
-             * the STOP_TRAN token still needs to be sent. */
-        }
-    }
-    if (write_cmd == CMD_WRITE_MULTIPLE_BLOCK)
-    {
-        static const unsigned char stop_tran = DT_STOP_TRAN;
-        write_transfer(&stop_tran, 1);
-        poll_busy(card->write_timeout);
-    }
-
-  error:
-
-    deselect_card();
-
-    return rc;
-}
-
-bool mmc_disk_is_active(void)
-{
-    /* this is correct unless early return from write gets implemented */
-    return mutex_test(&mmc_mutex);
-}
-
-bool mmc_detect(void)
-{
-    return (adc_read(ADC_MMC_SWITCH) < 0x200);
-}
-
-bool mmc_touched(void)
-{
-    if (mmc_status == MMC_UNKNOWN) /* try to detect */
-    {
-        mutex_lock(&mmc_mutex);
-        setup_sci1(7);             /* safe value */
-        and_b(~0x02, &PADRH);      /* assert CS */
-        if (send_cmd(CMD_SEND_OP_COND, 0, NULL) == 0xFF)
-            mmc_status = MMC_UNTOUCHED;
-        else
-            mmc_status = MMC_TOUCHED;
-
-        deselect_card();
-    }
-    return mmc_status == MMC_TOUCHED;
-}
-
-bool mmc_usb_active(int delayticks)
-{
-    /* reading "inactive" is delayed by user-supplied monoflop value */
-    return (usb_activity ||
-            TIME_BEFORE(current_tick, last_usb_activity + delayticks));
-}
-
-static void mmc_tick(void)
-{
-    bool current_status;
-
-    if (new_mmc_circuit)
-        /* USB bridge activity is 0 on idle, ~527 on active */
-        current_status = adc_read(ADC_USB_ACTIVE) > 0x100;
-    else
-        current_status = adc_read(ADC_USB_ACTIVE) < 0x190;
-
-    if (!current_status && usb_activity)
-        last_usb_activity = current_tick;
-    usb_activity = current_status;
-
-    current_status = mmc_detect();
-    /* Only report when the status has changed */
-    if (current_status != last_mmc_status)
-    {
-        last_mmc_status = current_status;
-        countdown = HZ/3;
-    }
-    else
-    {
-        /* Count down until it gets negative */
-        if (countdown >= 0)
-            countdown--;
-
-        if (countdown == 0)
-        {
-            if (current_status)
-            {
-                queue_broadcast(SYS_HOTSWAP_INSERTED, mmc_first_drive + 1);
-            }
-            else
-            {
-                queue_broadcast(SYS_HOTSWAP_EXTRACTED, mmc_first_drive + 1);
-                mmc_status = MMC_UNTOUCHED;
-                card_info[1].initialized = false;
-            }
-        }
-    }
-}
-
-void mmc_enable(bool on)
-{
-    mutex_lock(&mmc_mutex);
-    enable_controller(on);
-    mutex_unlock(&mmc_mutex);
-}
-
-int mmc_init(void)
-{
-    int rc = 0;
-
-    if (!initialized) 
-        mutex_init(&mmc_mutex);
-
-    mutex_lock(&mmc_mutex);
-    led(false);
-
-    last_mmc_status = mmc_detect();
-#ifndef HAVE_MULTIDRIVE
-    /* Use MMC if inserted, internal flash otherwise */
-    current_card = last_mmc_status ? 1 : 0;
-#endif
-
-    if (!initialized)
-    {
-        if (!last_mmc_status)
-            mmc_status = MMC_UNTOUCHED;
-
-        /* Port setup */
-        PACR1 &= ~0x0F3C;  /* GPIO function for PA13 (flash busy), PA12
-                            * (clk gate), PA10 (flash CS), PA9 (MMC CS) */
-        PACR2 &= ~0x4000;  /* GPIO for PA7 (flash reset) */
-        PADR  |=  0x0680;  /* set all the selects + reset high (=inactive) */
-        PAIOR |=  0x1680;  /* make outputs for them and the PA12 clock gate */
-
-        PBCR1 &= ~0x0CF0;  /* GPIO function for PB13, PB11 and PB10 */
-        PBDR  |=  0x2C00;  /* SCK1, TxD1 and RxD1 high in GPIO */
-        PBIOR |=  0x2000;  /* SCK1 output */
-        PBIOR &= ~0x0C00;  /* TxD1, RxD1 input */
-
-        IPRE  &=  0x0FFF;  /* disable SCI1 interrupts for the CPU */
-
-        new_mmc_circuit = ((HW_MASK & MMC_CLOCK_POLARITY) != 0);
-        tick_add_task(mmc_tick);
-        initialized = true;
-    }
-    enable_controller(true);
-
-    mutex_unlock(&mmc_mutex);
-    return rc;
-}
-
-long mmc_last_disk_activity(void)
-{
-    return last_disk_activity;
-}
-
-#ifdef STORAGE_GET_INFO
-void mmc_get_info(IF_MD(int drive,) struct storage_info *info)
-{
-#ifndef HAVE_MULTIDRIVE
-    const int drive=0;
-#endif
-    info->sector_size=card_info[drive].blocksize;
-    info->num_sectors=card_info[drive].numblocks;
-    info->vendor="Rockbox";
-    if(drive==0)
-    {
-        info->product="Internal Storage";
-    }
-    else
-    {
-        info->product="MMC Card Slot";
-    }
-    info->revision="0.00";
-}
-#endif
-
-#ifdef HAVE_HOTSWAP
-bool mmc_removable(IF_MD_NONVOID(int drive))
-{
-#ifndef HAVE_MULTIDRIVE
-    const int drive=0;
-#endif
-    return (drive==1);
-}
-
-bool mmc_present(IF_MD_NONVOID(int drive))
-{
-#ifndef HAVE_MULTIDRIVE
-    const int drive=0;
-#endif
-    if(drive==0)
-    {
-        return true;
-    }
-    else
-    {
-        return mmc_detect();
-    }
-}
-#endif
-
-void mmc_spin(void)
-{
-}
-
-void mmc_spindown(int seconds)
-{
-    (void)seconds;
-}
-
-#ifdef CONFIG_STORAGE_MULTI
-int mmc_num_drives(int first_drive)
-{
-    mmc_first_drive = first_drive;
-    return MMC_NUM_DRIVES;
-}
-#endif /* CONFIG_STORAGE_MULTI */
-
-int mmc_event(long id, intptr_t data)
-{
-    return storage_event_default_handler(id, data, last_disk_activity,
-                                         STORAGE_MMC);
-}