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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
#include "ch.h"
#include "hal.h"
#include "test.h"
#include "evtimer.h"
#include "ff.h"
/**
* @brief FS object.
*/
FATFS MMC_FS;
/**
* MMC driver instance.
*/
MMCDriver MMCD1;
/* FS mounted and ready.*/
static bool_t fs_ready = FALSE;
/* Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0, MSb first).*/
static SPIConfig hs_spicfg = {IOPORT2, GPIOB_SPI2NSS, 0};
/* Low speed SPI configuration (281.250KHz, CPHA=0, CPOL=0, MSb first).*/
static SPIConfig ls_spicfg = {IOPORT2, GPIOB_SPI2NSS, SPI_CR1_BR_2 | SPI_CR1_BR_1};
/* MMC configuration (empty).*/
static const MMCConfig mmc_cfg = {};
/* Card insertion verification.*/
static bool_t mmc_is_inserted(void) {return palReadPad(IOPORT3, GPIOC_MMCCP);}
/* Card protection verification.*/
static bool_t mmc_is_protected(void) {return !palReadPad(IOPORT3, GPIOC_MMCWP);}
/* Generic large buffer.*/
uint8_t fbuff[1024];
/*
* Red LEDs blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
while (TRUE) {
palClearPad(IOPORT3, GPIOC_LED);
chThdSleepMilliseconds(500);
palSetPad(IOPORT3, GPIOC_LED);
chThdSleepMilliseconds(500);
}
return 0;
}
static FRESULT scan_files(char *path)
{
FRESULT res;
FILINFO fno;
DIR dir;
int i;
char *fn;
res = f_opendir(&dir, path);
if (res == FR_OK) {
i = strlen(path);
for (;;) {
res = f_readdir(&dir, &fno);
if (res != FR_OK || fno.fname[0] == 0)
break;
if (fno.fname[0] == '.')
continue;
fn = fno.fname;
if (fno.fattrib & AM_DIR) {
siprintf(&path[i], "/%s", fn);
res = scan_files(path);
if (res != FR_OK)
break;
path[i] = 0;
}
else {
iprintf("%s/%s\r\n", path, fn);
}
}
}
return res;
}
/*
* Executed as event handler at 500mS intervals.
*/
static void TimerHandler(eventid_t id) {
(void)id;
if (palReadPad(IOPORT1, GPIOA_BUTTON)) {
if (fs_ready) {
FRESULT err;
uint32_t clusters;
FATFS *fsp;
err = f_getfree("/", &clusters, &fsp);
if (err != FR_OK) {
iprintf("FS: f_getfree() failed\r\n");
return;
}
iprintf("FS: %lu free clusters, %u sectors per cluster, %lu bytes free\r\n",
clusters, MMC_FS.csize,
clusters * (uint32_t)MMC_FS.csize * (uint32_t)MMC_SECTOR_SIZE);
fbuff[0] = 0;
scan_files((char *)fbuff);
}
else
TestThread(&SD2);
}
}
/*
* MMC card insertion event.
*/
static void InsertHandler(eventid_t id) {
FRESULT err;
(void)id;
iprintf("MMC: inserted\r\n");
/*
* On insertion MMC initialization and FS mount.
*/
iprintf("MMC: initialization ");
if (mmcConnect(&MMCD1)) {
iprintf("failed\r\n");
return;
}
iprintf("ok\r\n");
iprintf("FS: mount ");
err = f_mount(0, &MMC_FS);
if (err != FR_OK) {
iprintf("failed\r\n");
mmcDisconnect(&MMCD1);
return;
}
fs_ready = TRUE;
iprintf("ok\r\n");
}
/*
* MMC card removal event.
*/
static void RemoveHandler(eventid_t id) {
(void)id;
iprintf("MMC: removed\r\n");
fs_ready = FALSE;
}
/*
* Entry point, note, the main() function is already a thread in the system
* on entry.
*/
int main(int argc, char **argv) {
static const evhandler_t evhndl[] = {
TimerHandler,
InsertHandler,
RemoveHandler
};
static EvTimer evt;
struct EventListener el0, el1, el2;
(void)argc;
(void)argv;
/*
* Activates the serial driver 2 using the driver default configuration.
*/
sdStart(&SD2, NULL);
/*
* Initializes the MMC driver to work with SPI2.
*/
palSetPadMode(IOPORT2, GPIOB_SPI2NSS, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(IOPORT2, GPIOB_SPI2NSS);
mmcObjectInit(&MMCD1, &SPID2,
&ls_spicfg, &hs_spicfg,
mmc_is_protected, mmc_is_inserted);
mmcStart(&MMCD1, &mmc_cfg);
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Normal main() thread activity, in this demo it does nothing except
* sleeping in a loop and listen for events.
*/
evtInit(&evt, MS2ST(500)); /* Initializes an event timer object. */
evtStart(&evt); /* Starts the event timer. */
chEvtRegister(&evt.et_es, &el0, 0); /* Registers on the timer event source. */
chEvtRegister(&MMCD1.mmc_inserted_event, &el1, 1);
chEvtRegister(&MMCD1.mmc_removed_event, &el2, 2);
while (TRUE)
chEvtDispatch(evhndl, chEvtWaitOne(ALL_EVENTS));
return 0;
}
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