955 lines
28 KiB
C
955 lines
28 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "sd.h"
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#include "mmc.h"
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#include "sdmmc.h"
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#include "ssp-imx233.h"
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#include "pinctrl-imx233.h"
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#include "partitions-imx233.h"
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#include "button-target.h"
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#include "fat.h"
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#include "disk.h"
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#include "usb.h"
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#include "debug.h"
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#include "string.h"
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#include "ata_idle_notify.h"
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#include "led.h"
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/** NOTE For convenience, this drivers relies on the many similar commands
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* between SD and MMC. The following assumptions are made:
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* - SD_SEND_STATUS = MMC_SEND_STATUS
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* - SD_SELECT_CARD = MMC_SELECT_CARD
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* - SD_TRAN = MMC_TRAN
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* - MMC_WRITE_MULTIPLE_BLOCK = SD_WRITE_MULTIPLE_BLOCK
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* - MMC_READ_MULTIPLE_BLOCK = SD_READ_MULTIPLE_BLOCK
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* - SD_STOP_TRANSMISSION = MMC_STOP_TRANSMISSION
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* - SD_DESELECT_CARD = MMC_DESELECT_CARD
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*/
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#if SD_SEND_STATUS != MMC_SEND_STATUS || SD_SELECT_CARD != MMC_SELECT_CARD || \
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SD_TRAN != MMC_TRAN || MMC_WRITE_MULTIPLE_BLOCK != SD_WRITE_MULTIPLE_BLOCK || \
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MMC_READ_MULTIPLE_BLOCK != SD_READ_MULTIPLE_BLOCK || \
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SD_STOP_TRANSMISSION != MMC_STOP_TRANSMISSION || \
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SD_DESELECT_CARD != MMC_DESELECT_CARD
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#error SD/MMC mismatch
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#endif
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struct sdmmc_config_t
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{
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const char *name; /* name(for debug) */
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int flags; /* flags */
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int power_pin; /* power pin */
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int power_delay; /* extra power up delay */
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int ssp; /* associated ssp block */
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int mode; /* mode (SD vs MMC) */
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};
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/* flags */
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#define POWER_PIN (1 << 0)
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#define POWER_INVERTED (1 << 1)
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#define REMOVABLE (1 << 2)
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#define DETECT_INVERTED (1 << 3)
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#define POWER_DELAY (1 << 4)
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#define WINDOW (1 << 5)
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/* modes */
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#define SD_MODE 0
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#define MMC_MODE 1
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#define PIN(bank,pin) ((bank) << 5 | (pin))
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#define PIN2BANK(v) ((v) >> 5)
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#define PIN2PIN(v) ((v) & 0x1f)
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struct sdmmc_config_t sdmmc_config[] =
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{
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#ifdef SANSA_FUZEPLUS
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/* The Fuze+ uses pin #B0P8 for power */
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{
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.name = "microSD",
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.flags = POWER_PIN | POWER_INVERTED | REMOVABLE,
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.power_pin = PIN(0, 8),
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.ssp = 1,
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.mode = SD_MODE,
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},
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/* The Fuze+ uses pin #B1P29 for power */
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{
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.name = "eMMC",
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.flags = POWER_PIN | POWER_INVERTED | WINDOW | POWER_DELAY,
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.power_pin = PIN(1, 29),
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.power_delay = HZ / 5, /* extra delay, to ramp up voltage? */
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.ssp = 2,
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.mode = MMC_MODE,
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},
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#elif defined(CREATIVE_ZENXFI2)
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/* The Zen X-Fi2 uses pin B1P29 for power*/
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{
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.name = "microSD",
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.flags = POWER_PIN | REMOVABLE | DETECT_INVERTED,
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.power_pin = PIN(1, 29),
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.ssp = 1,
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.mode = SD_MODE,
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},
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#elif defined(CREATIVE_ZENXFI3)
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{
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.name = "internal/SD",
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.flags = WINDOW,
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.ssp = 2,
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.mode = SD_MODE,
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},
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/* The Zen X-Fi3 uses pin #B0P07 for power*/
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{
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.name = "microSD",
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.flags = POWER_PIN | POWER_INVERTED | REMOVABLE | POWER_DELAY,
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.power_pin = PIN(0, 7),
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.power_delay = HZ / 10, /* extra delay, to ramp up voltage? */
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.ssp = 1,
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.mode = SD_MODE,
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},
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#else
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#error You need to write the sd/mmc config!
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#endif
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};
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#define SDMMC_NUM_DRIVES (sizeof(sdmmc_config) / sizeof(sdmmc_config[0]))
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#define SDMMC_CONF(drive) sdmmc_config[drive]
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#define SDMMC_FLAGS(drive) SDMMC_CONF(drive).flags
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#define SDMMC_SSP(drive) SDMMC_CONF(drive).ssp
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#define SDMMC_MODE(drive) SDMMC_CONF(drive).mode
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/** WARNING
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* to be consistent with all our SD drivers, the .rca field of sdmmc_card_info
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* in reality holds (rca << 16) because all command arguments actually require
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* the RCA is the 16-bit msb. Be careful that this is not the actuall RCA ! */
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/* common */
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static unsigned window_start[SDMMC_NUM_DRIVES];
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static unsigned window_end[SDMMC_NUM_DRIVES];
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static uint8_t aligned_buffer[SDMMC_NUM_DRIVES][512] CACHEALIGN_ATTR;
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static tCardInfo sdmmc_card_info[SDMMC_NUM_DRIVES];
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static struct mutex mutex[SDMMC_NUM_DRIVES];
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static int disk_last_activity[SDMMC_NUM_DRIVES];
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#define MIN_YIELD_PERIOD 5 /* ticks */
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static int next_yield = 0;
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#define SDMMC_INFO(drive) sdmmc_card_info[drive]
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#define SDMMC_RCA(drive) SDMMC_INFO(drive).rca
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/* sd only */
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static long sdmmc_stack[(DEFAULT_STACK_SIZE*2 + 0x200)/sizeof(long)];
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static const char sdmmc_thread_name[] = "sdmmc";
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static struct event_queue sdmmc_queue;
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#if CONFIG_STORAGE & STORAGE_SD
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static int sd_first_drive;
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static unsigned _sd_num_drives;
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static int sd_map[SDMMC_NUM_DRIVES]; /* sd->sdmmc map */
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#endif
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/* mmc only */
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#if CONFIG_STORAGE & STORAGE_MMC
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static int mmc_first_drive;
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static unsigned _mmc_num_drives;
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static int mmc_map[SDMMC_NUM_DRIVES]; /* mmc->sdmmc map */
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#endif
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/* WARNING NOTE BUG FIXME
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* There are three numbering schemes involved in the driver:
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* - the sdmmc indexes into sdmmc_config[]
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* - the sd drive indexes
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* - the mmc drive indexes
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* By convention, [drive] refers to a sdmmc index whereas sd_drive/mmc_drive
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* refer to sd/mmc drive indexes. We keep two maps sd->sdmmc and mmc->sdmmc
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* to find the sdmmc index from the sd or mmc one */
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static void sdmmc_detect_callback(int ssp)
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{
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/* This is called only if the state was stable for 300ms - check state
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* and post appropriate event. */
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if(imx233_ssp_sdmmc_detect(ssp))
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queue_broadcast(SYS_HOTSWAP_INSERTED, 0);
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else
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queue_broadcast(SYS_HOTSWAP_EXTRACTED, 0);
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imx233_ssp_sdmmc_setup_detect(ssp, true, sdmmc_detect_callback, false,
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imx233_ssp_sdmmc_is_detect_inverted(ssp));
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}
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static void sdmmc_power(int drive, bool on)
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{
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/* power chip if needed */
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if(SDMMC_FLAGS(drive) & POWER_PIN)
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{
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int bank = PIN2BANK(SDMMC_CONF(drive).power_pin);
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int pin = PIN2PIN(SDMMC_CONF(drive).power_pin);
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imx233_pinctrl_acquire_pin(bank, pin, "sd/mmc power");
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imx233_set_pin_function(bank, pin, PINCTRL_FUNCTION_GPIO);
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imx233_enable_gpio_output(bank, pin, true);
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if(SDMMC_FLAGS(drive) & POWER_INVERTED)
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imx233_set_gpio_output(bank, pin, !on);
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else
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imx233_set_gpio_output(bank, pin, on);
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}
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if(SDMMC_FLAGS(drive) & POWER_DELAY)
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sleep(SDMMC_CONF(drive).power_delay);
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/* setup pins, never use alternatives pin on SSP1 because no device use it
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* but this could be made a flag */
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int bus_width = SDMMC_MODE(drive) == MMC_MODE ? 8 : 4;
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if(SDMMC_SSP(drive) == 1)
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imx233_ssp_setup_ssp1_sd_mmc_pins(on, bus_width, PINCTRL_DRIVE_4mA, false);
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else
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imx233_ssp_setup_ssp2_sd_mmc_pins(on, bus_width, PINCTRL_DRIVE_4mA);
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}
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#define MCI_NO_RESP 0
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#define MCI_RESP (1<<0)
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#define MCI_LONG_RESP (1<<1)
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#define MCI_ACMD (1<<2) /* sd only */
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#define MCI_NOCRC (1<<3)
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#define MCI_BUSY (1<<4)
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static bool send_cmd(int drive, uint8_t cmd, uint32_t arg, uint32_t flags, uint32_t *resp)
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{
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if((flags & MCI_ACMD) && !send_cmd(drive, SD_APP_CMD, SDMMC_RCA(drive), MCI_RESP, resp))
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return false;
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enum imx233_ssp_resp_t resp_type = (flags & MCI_LONG_RESP) ? SSP_LONG_RESP :
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(flags & MCI_RESP) ? SSP_SHORT_RESP : SSP_NO_RESP;
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enum imx233_ssp_error_t ret = imx233_ssp_sd_mmc_transfer(SDMMC_SSP(drive), cmd,
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arg, resp_type, NULL, 0, !!(flags & MCI_BUSY), false, resp);
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if(resp_type == SSP_LONG_RESP)
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{
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/* Our SD codes assume most significant word first, so reverse resp */
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uint32_t tmp = resp[0];
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resp[0] = resp[3];
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resp[3] = tmp;
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tmp = resp[1];
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resp[1] = resp[2];
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resp[2] = tmp;
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}
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return ret == SSP_SUCCESS;
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}
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static int wait_for_state(int drive, unsigned state)
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{
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unsigned long response;
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unsigned int timeout = current_tick + 5*HZ;
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int cmd_retry = 10;
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while (1)
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{
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/* NOTE: rely on SD_SEND_STATUS=MMC_SEND_STATUS */
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while(!send_cmd(drive, SD_SEND_STATUS, SDMMC_RCA(drive), MCI_RESP, &response) && cmd_retry > 0)
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cmd_retry--;
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if(cmd_retry <= 0)
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return -1;
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if(((response >> 9) & 0xf) == state)
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return 0;
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if(TIME_AFTER(current_tick, timeout))
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return -10 * ((response >> 9) & 0xf);
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if(TIME_AFTER(current_tick, next_yield))
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{
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yield();
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next_yield = current_tick + MIN_YIELD_PERIOD;
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}
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}
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return 0;
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}
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#if CONFIG_STORAGE & STORAGE_SD
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static int init_sd_card(int drive)
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{
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int ssp = SDMMC_SSP(drive);
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sdmmc_power(drive, false);
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sdmmc_power(drive, true);
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imx233_ssp_start(ssp);
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imx233_ssp_softreset(ssp);
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imx233_ssp_set_mode(ssp, HW_SSP_CTRL1__SSP_MODE__SD_MMC);
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/* SSPCLK @ 96MHz
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* gives bitrate of 96000 / 240 / 1 = 400kHz */
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imx233_ssp_set_timings(ssp, 240, 0, 0xffff);
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imx233_ssp_sd_mmc_power_up_sequence(ssp);
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imx233_ssp_set_bus_width(ssp, 1);
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imx233_ssp_set_block_size(ssp, 9);
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SDMMC_RCA(drive) = 0;
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bool sd_v2 = false;
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uint32_t resp;
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long init_timeout;
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/* go to idle state */
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if(!send_cmd(drive, SD_GO_IDLE_STATE, 0, MCI_NO_RESP, NULL))
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return -1;
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/* CMD8 Check for v2 sd card. Must be sent before using ACMD41
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Non v2 cards will not respond to this command */
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if(send_cmd(drive, SD_SEND_IF_COND, 0x1AA, MCI_RESP, &resp))
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if((resp & 0xFFF) == 0x1AA)
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sd_v2 = true;
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/* timeout for initialization is 1sec, from SD Specification 2.00 */
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init_timeout = current_tick + HZ;
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do
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{
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/* this timeout is the only valid error for this loop*/
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if(TIME_AFTER(current_tick, init_timeout))
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return -2;
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/* ACMD41 For v2 cards set HCS bit[30] & send host voltage range to all */
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if(!send_cmd(drive, SD_APP_OP_COND, (0x00FF8000 | (sd_v2 ? 1<<30 : 0)),
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MCI_ACMD|MCI_NOCRC|MCI_RESP, &SDMMC_INFO(drive).ocr))
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return -100;
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} while(!(SDMMC_INFO(drive).ocr & (1<<31)));
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/* CMD2 send CID */
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if(!send_cmd(drive, SD_ALL_SEND_CID, 0, MCI_RESP|MCI_LONG_RESP, SDMMC_INFO(drive).cid))
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return -3;
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/* CMD3 send RCA */
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if(!send_cmd(drive, SD_SEND_RELATIVE_ADDR, 0, MCI_RESP, &SDMMC_INFO(drive).rca))
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return -4;
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/* Try to switch V2 cards to HS timings, non HS seem to ignore this */
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if(sd_v2)
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{
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/* CMD7 w/rca: Select card to put it in TRAN state */
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if(!send_cmd(drive, SD_SELECT_CARD, SDMMC_RCA(drive), MCI_RESP, NULL))
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return -5;
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if(wait_for_state(drive, SD_TRAN))
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return -6;
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/* CMD6 */
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if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL))
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return -7;
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sleep(HZ/10);
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/* go back to STBY state so we can read csd */
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/* CMD7 w/rca=0: Deselect card to put it in STBY state */
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if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
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return -8;
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}
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/* CMD9 send CSD */
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if(!send_cmd(drive, SD_SEND_CSD, SDMMC_RCA(drive), MCI_RESP|MCI_LONG_RESP,
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SDMMC_INFO(drive).csd))
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return -9;
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sd_parse_csd(&SDMMC_INFO(drive));
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window_start[drive] = 0;
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window_end[drive] = SDMMC_INFO(drive).numblocks;
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/* SSPCLK @ 96MHz
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* gives bitrate of 96 / 4 / 1 = 24MHz */
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imx233_ssp_set_timings(ssp, 4, 0, 0xffff);
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/* CMD7 w/rca: Select card to put it in TRAN state */
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if(!send_cmd(drive, SD_SELECT_CARD, SDMMC_RCA(drive), MCI_RESP, &resp))
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return -12;
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if(wait_for_state(drive, SD_TRAN))
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return -13;
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/* ACMD6: set bus width to 4-bit */
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if(!send_cmd(drive, SD_SET_BUS_WIDTH, 2, MCI_RESP|MCI_ACMD, &resp))
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return -15;
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/* ACMD42: disconnect the pull-up resistor on CD/DAT3 */
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if(!send_cmd(drive, SD_SET_CLR_CARD_DETECT, 0, MCI_RESP|MCI_ACMD, &resp))
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return -17;
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/* Switch to 4-bit */
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imx233_ssp_set_bus_width(ssp, 4);
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SDMMC_INFO(drive).initialized = 1;
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return 0;
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}
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#endif
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#if CONFIG_STORAGE & STORAGE_MMC
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static int init_mmc_drive(int drive)
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{
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int ssp = SDMMC_SSP(drive);
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/* we can choose the RCA of mmc cards: pick drive. Following our convention,
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* .rca is actually RCA << 16 */
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SDMMC_RCA(drive) = drive << 16;
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sdmmc_power(drive, false);
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sdmmc_power(drive, true);
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imx233_ssp_start(ssp);
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imx233_ssp_softreset(ssp);
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imx233_ssp_set_mode(ssp, HW_SSP_CTRL1__SSP_MODE__SD_MMC);
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/* SSPCLK @ 96MHz
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* gives bitrate of 96000 / 240 / 1 = 400kHz */
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imx233_ssp_set_timings(ssp, 240, 0, 0xffff);
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imx233_ssp_sd_mmc_power_up_sequence(ssp);
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imx233_ssp_set_bus_width(ssp, 1);
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imx233_ssp_set_block_size(ssp, 9);
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/* go to idle state */
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if(!send_cmd(drive, MMC_GO_IDLE_STATE, 0, MCI_NO_RESP, NULL))
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return -1;
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/* send op cond until the card respond with busy bit set; it must complete within 1sec */
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unsigned timeout = current_tick + HZ;
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bool ret = false;
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do
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{
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uint32_t ocr;
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ret = send_cmd(drive, MMC_SEND_OP_COND, 0x40ff8000, MCI_RESP, &ocr);
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if(ret && ocr & (1 << 31))
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break;
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}while(!TIME_AFTER(current_tick, timeout));
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if(!ret)
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return -2;
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/* get CID */
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uint32_t cid[4];
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if(!send_cmd(drive, MMC_ALL_SEND_CID, 0, MCI_LONG_RESP, cid))
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return -3;
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/* Set RCA */
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uint32_t status;
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if(!send_cmd(drive, MMC_SET_RELATIVE_ADDR, SDMMC_RCA(drive), MCI_RESP, &status))
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return -4;
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/* Select card */
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if(!send_cmd(drive, MMC_SELECT_CARD, SDMMC_RCA(drive), MCI_RESP, &status))
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return -5;
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/* Check TRAN state */
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if(wait_for_state(drive, MMC_TRAN))
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return -6;
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|
/* Switch to 8-bit bus */
|
|
if(!send_cmd(drive, MMC_SWITCH, 0x3b70200, MCI_RESP|MCI_BUSY, &status))
|
|
return -8;
|
|
/* switch error ? */
|
|
if(status & 0x80)
|
|
return -9;
|
|
imx233_ssp_set_bus_width(ssp, 8);
|
|
/* Switch to high speed mode */
|
|
if(!send_cmd(drive, MMC_SWITCH, 0x3b90100, MCI_RESP|MCI_BUSY, &status))
|
|
return -10;
|
|
/* switch error ?*/
|
|
if(status & 0x80)
|
|
return -11;
|
|
/* SSPCLK @ 96MHz
|
|
* gives bitrate of 96 / 2 / 1 = 48MHz */
|
|
imx233_ssp_set_timings(ssp, 2, 0, 0xffff);
|
|
|
|
/* read extended CSD */
|
|
{
|
|
uint8_t ext_csd[512];
|
|
if(imx233_ssp_sd_mmc_transfer(ssp, 8, 0, SSP_SHORT_RESP, aligned_buffer[drive], 1, true, true, &status))
|
|
return -12;
|
|
memcpy(ext_csd, aligned_buffer[drive], 512);
|
|
uint32_t *sec_count = (void *)&ext_csd[212];
|
|
window_start[drive] = 0;
|
|
window_end[drive] = *sec_count;
|
|
}
|
|
/* deselect card */
|
|
if(!send_cmd(drive, MMC_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
|
return -13;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
// low-level function, don't call directly!
|
|
static int __xfer_sectors(int drive, unsigned long start, int count, void *buf, bool read)
|
|
{
|
|
uint32_t resp;
|
|
int ret = 0;
|
|
while(count != 0)
|
|
{
|
|
int this_count = MIN(count, IMX233_MAX_SINGLE_DMA_XFER_SIZE / 512);
|
|
/* Set bank_start to the correct unit (blocks or bytes).
|
|
* MMC drives use block addressing, SD cards bytes or blocks */
|
|
int bank_start = start;
|
|
if(SDMMC_MODE(drive) == SD_MODE && !(SDMMC_INFO(drive).ocr & (1<<30))) /* not SDHC */
|
|
bank_start *= SD_BLOCK_SIZE;
|
|
/* issue read/write
|
|
* NOTE: rely on SD_{READ,WRITE}_MULTIPLE_BLOCK=MMC_{READ,WRITE}_MULTIPLE_BLOCK */
|
|
ret = imx233_ssp_sd_mmc_transfer(SDMMC_SSP(drive),
|
|
read ? SD_READ_MULTIPLE_BLOCK : SD_WRITE_MULTIPLE_BLOCK,
|
|
bank_start, SSP_SHORT_RESP, buf, this_count, false, read, &resp);
|
|
if(ret != SSP_SUCCESS)
|
|
break;
|
|
/* stop transmission
|
|
* NOTE: rely on SD_STOP_TRANSMISSION=MMC_STOP_TRANSMISSION */
|
|
if(!send_cmd(drive, SD_STOP_TRANSMISSION, 0, MCI_RESP|MCI_BUSY, &resp))
|
|
{
|
|
ret = -15;
|
|
break;
|
|
}
|
|
count -= this_count;
|
|
start += this_count;
|
|
buf += this_count * 512;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void do_led(int delta)
|
|
{
|
|
static int level = 0;
|
|
level += delta;
|
|
led(level > 0);
|
|
}
|
|
|
|
static int transfer_sectors(int drive, unsigned long start, int count, void *buf, bool read)
|
|
{
|
|
int ret = 0;
|
|
|
|
/* update disk activity */
|
|
disk_last_activity[drive] = current_tick;
|
|
|
|
/* lock per-drive mutex */
|
|
mutex_lock(&mutex[drive]);
|
|
|
|
/* update led status */
|
|
do_led(1);
|
|
|
|
/* for SD cards, init if necessary */
|
|
#if CONFIG_STORAGE & STORAGE_SD
|
|
if(SDMMC_MODE(drive) == SD_MODE && SDMMC_INFO(drive).initialized <= 0)
|
|
{
|
|
ret = init_sd_card(drive);
|
|
if(SDMMC_INFO(drive).initialized <= 0)
|
|
goto Lend;
|
|
}
|
|
#endif
|
|
|
|
/* check window */
|
|
start += window_start[drive];
|
|
if((start + count) > window_end[drive])
|
|
{
|
|
ret = -201;
|
|
goto Lend;
|
|
}
|
|
/* select card.
|
|
* NOTE: rely on SD_SELECT_CARD=MMC_SELECT_CARD */
|
|
if(!send_cmd(drive, SD_SELECT_CARD, SDMMC_RCA(drive), MCI_NO_RESP, NULL))
|
|
{
|
|
ret = -20;
|
|
goto Lend;
|
|
}
|
|
/* wait for TRAN state */
|
|
/* NOTE: rely on SD_TRAN=MMC_TRAN */
|
|
ret = wait_for_state(drive, SD_TRAN);
|
|
if(ret < 0)
|
|
goto Ldeselect;
|
|
|
|
/**
|
|
* NOTE: we need to make sure dma transfers are aligned. This handled
|
|
* differently for read and write transfers. We do not repeat it each
|
|
* time but it should be noted that all transfers are limited by
|
|
* IMX233_MAX_SINGLE_DMA_XFER_SIZE and thus need to be split if needed.
|
|
*
|
|
* Read transfers:
|
|
* If the buffer is already aligned, transfer everything at once.
|
|
* Otherwise, transfer all sectors but one to the sub-buffer starting
|
|
* on the next cache ligned and then move the data. Then transfer the
|
|
* last sector to the aligned_buffer and then copy to the buffer.
|
|
*
|
|
* Write transfers:
|
|
* If the buffer is already aligned, transfer everything at once.
|
|
* Otherwise, copy the first sector to the aligned_buffer and transfer.
|
|
* Then move all other sectors within the buffer to make it cache
|
|
* aligned and transfer it.
|
|
*/
|
|
if(read)
|
|
{
|
|
void *ptr = CACHEALIGN_UP(buf);
|
|
if(buf != ptr)
|
|
{
|
|
// copy count-1 sector and then move within the buffer
|
|
ret = __xfer_sectors(drive, start, count - 1, ptr, read);
|
|
memmove(buf, ptr, 512 * (count - 1));
|
|
if(ret >= 0)
|
|
{
|
|
// transfer the last sector the aligned_buffer and copy
|
|
ret = __xfer_sectors(drive, start + count - 1, 1,
|
|
aligned_buffer[drive], read);
|
|
memcpy(buf + 512 * (count - 1), aligned_buffer[drive], 512);
|
|
}
|
|
}
|
|
else
|
|
ret = __xfer_sectors(drive, start, count, buf, read);
|
|
}
|
|
else
|
|
{
|
|
void *ptr = CACHEALIGN_UP(buf);
|
|
if(buf != ptr)
|
|
{
|
|
// transfer the first sector to aligned_buffer and copy
|
|
memcpy(aligned_buffer[drive], buf, 512);
|
|
ret = __xfer_sectors(drive, start, 1, aligned_buffer[drive], read);
|
|
if(ret >= 0)
|
|
{
|
|
// move within the buffer and transfer
|
|
memmove(ptr, buf + 512, 512 * (count - 1));
|
|
ret = __xfer_sectors(drive, start + 1, count - 1, ptr, read);
|
|
}
|
|
}
|
|
else
|
|
ret = __xfer_sectors(drive, start, count, buf, read);
|
|
}
|
|
|
|
/* deselect card */
|
|
Ldeselect:
|
|
/* CMD7 w/rca =0 : deselects card & puts it in STBY state
|
|
* NOTE: rely on SD_DESELECT_CARD=MMC_DESELECT_CARD */
|
|
if(!send_cmd(drive, SD_DESELECT_CARD, 0, MCI_NO_RESP, NULL))
|
|
ret = -23;
|
|
Lend:
|
|
/* update led status */
|
|
do_led(-1);
|
|
/* release per-drive mutex */
|
|
mutex_unlock(&mutex[drive]);
|
|
return ret;
|
|
}
|
|
|
|
static int init_drive(int drive)
|
|
{
|
|
int ret;
|
|
switch(SDMMC_MODE(drive))
|
|
{
|
|
#if CONFIG_STORAGE & STORAGE_SD
|
|
case SD_MODE: ret = init_sd_card(drive); break;
|
|
#endif
|
|
#if CONFIG_STORAGE & STORAGE_MMC
|
|
case MMC_MODE: ret = init_mmc_drive(drive); break;
|
|
#endif
|
|
default: ret = 0;
|
|
}
|
|
if(ret < 0)
|
|
return ret;
|
|
|
|
/* compute window */
|
|
if((SDMMC_FLAGS(drive) & WINDOW) && imx233_partitions_is_window_enabled())
|
|
{
|
|
uint8_t mbr[512];
|
|
int ret = transfer_sectors(drive, 0, 1, mbr, true);
|
|
if(ret)
|
|
panicf("Cannot read MBR: %d", ret);
|
|
ret = imx233_partitions_compute_window(mbr, &window_start[drive],
|
|
&window_end[drive]);
|
|
if(ret)
|
|
panicf("cannot compute partitions window: %d", ret);
|
|
SDMMC_INFO(drive).numblocks = window_end[drive] - window_start[drive];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void sdmmc_thread(void) NORETURN_ATTR;
|
|
static void sdmmc_thread(void)
|
|
{
|
|
struct queue_event ev;
|
|
bool idle_notified = false;
|
|
int timeout = 0;
|
|
|
|
while (1)
|
|
{
|
|
queue_wait_w_tmo(&sdmmc_queue, &ev, HZ);
|
|
|
|
switch(ev.id)
|
|
{
|
|
#if CONFIG_STORAGE & STORAGE_SD
|
|
case SYS_HOTSWAP_INSERTED:
|
|
case SYS_HOTSWAP_EXTRACTED:
|
|
{
|
|
int microsd_init = 1;
|
|
/* lock-out FAT activity first -
|
|
* prevent deadlocking via disk_mount that
|
|
* would cause a reverse-order attempt with
|
|
* another thread */
|
|
fat_lock();
|
|
|
|
/* We now have exclusive control of fat cache and sd.
|
|
* Release "by force", ensure file
|
|
* descriptors aren't leaked and any busy
|
|
* ones are invalid if mounting. */
|
|
for(unsigned sd_drive = 0; sd_drive < _sd_num_drives; sd_drive++)
|
|
{
|
|
int drive = sd_map[sd_drive];
|
|
/* Skip non-removable drivers */
|
|
if(!sd_removable(sd_drive))
|
|
continue;
|
|
/* lock-out card activity - direct calls
|
|
* into driver that bypass the fat cache */
|
|
mutex_lock(&mutex[drive]);
|
|
disk_unmount(sd_first_drive + sd_drive);
|
|
/* Force card init for new card, re-init for re-inserted one or
|
|
* clear if the last attempt to init failed with an error. */
|
|
SDMMC_INFO(sd_map[sd_drive]).initialized = 0;
|
|
|
|
if(ev.id == SYS_HOTSWAP_INSERTED)
|
|
{
|
|
microsd_init = init_drive(drive);
|
|
if(microsd_init < 0) /* initialisation failed */
|
|
panicf("%s init failed : %d", SDMMC_CONF(sd_map[sd_drive]).name, microsd_init);
|
|
|
|
microsd_init = disk_mount(sd_first_drive + sd_drive); /* 0 if fail */
|
|
}
|
|
/*
|
|
* Mount succeeded, or this was an EXTRACTED event,
|
|
* in both cases notify the system about the changed filesystems
|
|
*/
|
|
if(microsd_init)
|
|
queue_broadcast(SYS_FS_CHANGED, 0);
|
|
/* unlock card */
|
|
mutex_unlock(&mutex[drive]);
|
|
}
|
|
/* Access is now safe */
|
|
fat_unlock();
|
|
break;
|
|
}
|
|
#endif
|
|
case SYS_TIMEOUT:
|
|
#if CONFIG_STORAGE & STORAGE_SD
|
|
timeout = MAX(timeout, sd_last_disk_activity()+(3*HZ));
|
|
#endif
|
|
#if CONFIG_STORAGE & STORAGE_MMC
|
|
timeout = MAX(timeout, mmc_last_disk_activity()+(3*HZ));
|
|
#endif
|
|
if(TIME_BEFORE(current_tick, timeout))
|
|
{
|
|
idle_notified = false;
|
|
}
|
|
else
|
|
{
|
|
next_yield = current_tick;
|
|
|
|
if(!idle_notified)
|
|
{
|
|
call_storage_idle_notifys(false);
|
|
idle_notified = true;
|
|
}
|
|
}
|
|
break;
|
|
break;
|
|
case SYS_USB_CONNECTED:
|
|
usb_acknowledge(SYS_USB_CONNECTED_ACK);
|
|
/* Wait until the USB cable is extracted again */
|
|
usb_wait_for_disconnect(&sdmmc_queue);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int sdmmc_init(void)
|
|
{
|
|
static int is_initialized = false;
|
|
if(is_initialized)
|
|
return 0;
|
|
is_initialized = true;
|
|
for(unsigned drive = 0; drive < SDMMC_NUM_DRIVES; drive++)
|
|
mutex_init(&mutex[drive]);
|
|
|
|
queue_init(&sdmmc_queue, true);
|
|
create_thread(sdmmc_thread, sdmmc_stack, sizeof(sdmmc_stack), 0,
|
|
sdmmc_thread_name IF_PRIO(, PRIORITY_USER_INTERFACE) IF_COP(, CPU));
|
|
|
|
for(unsigned drive = 0; drive < SDMMC_NUM_DRIVES; drive++)
|
|
{
|
|
if(SDMMC_FLAGS(drive) & REMOVABLE)
|
|
imx233_ssp_sdmmc_setup_detect(SDMMC_SSP(drive), true, sdmmc_detect_callback,
|
|
false, SDMMC_FLAGS(drive) & DETECT_INVERTED);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sdmmc_present(int drive)
|
|
{
|
|
if(SDMMC_FLAGS(drive) & REMOVABLE)
|
|
return imx233_ssp_sdmmc_detect(SDMMC_SSP(drive));
|
|
else
|
|
return true;
|
|
}
|
|
|
|
static inline int sdmmc_removable(int drive)
|
|
{
|
|
return SDMMC_FLAGS(drive) & REMOVABLE;
|
|
}
|
|
|
|
#if CONFIG_STORAGE & STORAGE_SD
|
|
int sd_init(void)
|
|
{
|
|
int ret = sdmmc_init();
|
|
if(ret < 0) return ret;
|
|
|
|
_sd_num_drives = 0;
|
|
for(unsigned drive = 0; drive < SDMMC_NUM_DRIVES; drive++)
|
|
if(SDMMC_MODE(drive) == SD_MODE)
|
|
sd_map[_sd_num_drives++] = drive;
|
|
return 0;
|
|
}
|
|
|
|
tCardInfo *card_get_info_target(int sd_card_no)
|
|
{
|
|
return &SDMMC_INFO(sd_map[sd_card_no]);
|
|
}
|
|
|
|
int sd_num_drives(int first_drive)
|
|
{
|
|
sd_first_drive = first_drive;
|
|
return _sd_num_drives;
|
|
}
|
|
|
|
bool sd_present(IF_MV_NONVOID(int sd_drive))
|
|
{
|
|
return sdmmc_present(sd_map[sd_drive]);
|
|
}
|
|
|
|
bool sd_removable(IF_MV_NONVOID(int sd_drive))
|
|
{
|
|
return sdmmc_removable(sd_map[sd_drive]);
|
|
}
|
|
|
|
long sd_last_disk_activity(void)
|
|
{
|
|
long last = 0;
|
|
for(unsigned i = 0; i < _sd_num_drives; i++)
|
|
last = MAX(last, disk_last_activity[sd_map[i]]);
|
|
return last;
|
|
}
|
|
|
|
void sd_enable(bool on)
|
|
{
|
|
(void) on;
|
|
}
|
|
|
|
int sd_read_sectors(IF_MD2(int sd_drive,) unsigned long start, int count, void *buf)
|
|
{
|
|
return transfer_sectors(sd_map[sd_drive], start, count, buf, true);
|
|
}
|
|
|
|
int sd_write_sectors(IF_MD2(int sd_drive,) unsigned long start, int count, const void* buf)
|
|
{
|
|
return transfer_sectors(sd_map[sd_drive], start, count, (void *)buf, false);
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_STORAGE & STORAGE_MMC
|
|
int mmc_init(void)
|
|
{
|
|
int ret = sdmmc_init();
|
|
if(ret < 0) return ret;
|
|
|
|
_sd_num_drives = 0;
|
|
for(unsigned drive = 0; drive < SDMMC_NUM_DRIVES; drive++)
|
|
if(SDMMC_MODE(drive) == MMC_MODE)
|
|
{
|
|
mmc_map[_mmc_num_drives++] = drive;
|
|
init_drive(drive);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void mmc_get_info(IF_MD2(int mmc_drive,) struct storage_info *info)
|
|
{
|
|
int drive = mmc_map[mmc_drive];
|
|
info->sector_size = 512;
|
|
info->num_sectors = window_end[drive] - window_start[drive];
|
|
info->vendor = "Rockbox";
|
|
info->product = "Internal Storage";
|
|
info->revision = "0.00";
|
|
}
|
|
|
|
int mmc_num_drives(int first_drive)
|
|
{
|
|
mmc_first_drive = first_drive;
|
|
return _mmc_num_drives;
|
|
}
|
|
|
|
bool mmc_present(IF_MV_NONVOID(int mmc_drive))
|
|
{
|
|
return sdmmc_present(mmc_map[mmc_drive]);
|
|
}
|
|
|
|
bool mmc_removable(IF_MV_NONVOID(int mmc_drive))
|
|
{
|
|
return sdmmc_removable(mmc_map[mmc_drive]);
|
|
}
|
|
|
|
long mmc_last_disk_activity(void)
|
|
{
|
|
long last = 0;
|
|
for(unsigned i = 0; i < _mmc_num_drives; i++)
|
|
last = MAX(last, disk_last_activity[mmc_map[i]]);
|
|
return last;
|
|
}
|
|
|
|
void mmc_enable(bool on)
|
|
{
|
|
(void) on;
|
|
}
|
|
|
|
void mmc_sleep(void)
|
|
{
|
|
}
|
|
|
|
void mmc_sleepnow(void)
|
|
{
|
|
}
|
|
|
|
bool mmc_disk_is_active(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool mmc_usb_active(void)
|
|
{
|
|
return mmc_disk_is_active();
|
|
}
|
|
|
|
int mmc_soft_reset(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int mmc_flush(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void mmc_spin(void)
|
|
{
|
|
}
|
|
|
|
void mmc_spindown(int seconds)
|
|
{
|
|
(void) seconds;
|
|
}
|
|
|
|
int mmc_spinup_time(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int mmc_read_sectors(IF_MD2(int mmc_drive,) unsigned long start, int count, void *buf)
|
|
{
|
|
return transfer_sectors(mmc_map[mmc_drive], start, count, buf, true);
|
|
}
|
|
|
|
int mmc_write_sectors(IF_MD2(int mmc_drive,) unsigned long start, int count, const void* buf)
|
|
{
|
|
return transfer_sectors(mmc_map[mmc_drive], start, count, (void *)buf, false);
|
|
}
|
|
|
|
#endif
|