mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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ChibiOS 2.6.8, until I can figure out where to get it from git.
This commit is contained in:
Jared Boone
364
firmware/chibios/demos/ARM7-LPC214x-FATFS-GCC/main.c
Executable file
364
firmware/chibios/demos/ARM7-LPC214x-FATFS-GCC/main.c
Executable file
@@ -0,0 +1,364 @@
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/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include <string.h>
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#include "ch.h"
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#include "hal.h"
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#include "test.h"
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#include "chprintf.h"
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#include "evtimer.h"
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#include "buzzer.h"
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#include "ff.h"
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/*===========================================================================*/
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/* Card insertion monitor. */
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/*===========================================================================*/
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#define POLLING_INTERVAL 10
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#define POLLING_DELAY 10
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/**
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* @brief Card monitor timer.
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*/
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static VirtualTimer tmr;
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/**
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* @brief Debounce counter.
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*/
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static unsigned cnt;
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/**
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* @brief Card event sources.
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*/
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static EventSource inserted_event, removed_event;
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/**
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* @brief Insertion monitor timer callback function.
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*
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* @param[in] p pointer to the @p BaseBlockDevice object
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*
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* @notapi
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*/
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static void tmrfunc(void *p) {
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BaseBlockDevice *bbdp = p;
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/* The presence check is performed only while the driver is not in a
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transfer state because it is often performed by changing the mode of
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the pin connected to the CS/D3 contact of the card, this could disturb
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the transfer.*/
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blkstate_t state = blkGetDriverState(bbdp);
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chSysLockFromIsr();
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if ((state != BLK_READING) && (state != BLK_WRITING)) {
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/* Safe to perform the check.*/
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if (cnt > 0) {
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if (blkIsInserted(bbdp)) {
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if (--cnt == 0) {
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chEvtBroadcastI(&inserted_event);
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}
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}
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else
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cnt = POLLING_INTERVAL;
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}
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else {
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if (!blkIsInserted(bbdp)) {
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cnt = POLLING_INTERVAL;
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chEvtBroadcastI(&removed_event);
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}
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}
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}
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chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, bbdp);
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chSysUnlockFromIsr();
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}
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/**
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* @brief Polling monitor start.
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*
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* @param[in] p pointer to an object implementing @p BaseBlockDevice
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*
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* @notapi
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*/
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static void tmr_init(void *p) {
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chEvtInit(&inserted_event);
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chEvtInit(&removed_event);
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chSysLock();
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cnt = POLLING_INTERVAL;
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chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, p);
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chSysUnlock();
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}
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/*===========================================================================*/
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/* FatFs related. */
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/*===========================================================================*/
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/**
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* @brief FS object.
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*/
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FATFS MMC_FS;
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/**
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* MMC driver instance.
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*/
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MMCDriver MMCD1;
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/* FS mounted and ready.*/
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static bool_t fs_ready = FALSE;
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/* Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0).*/
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static SPIConfig hs_spicfg = {
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NULL,
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IOPORT1,
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PA_SSEL1,
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CR0_DSS8BIT | CR0_FRFSPI | CR0_CLOCKRATE(0),
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2
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};
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/* Low speed SPI configuration (281.250kHz, CPHA=0, CPOL=0).*/
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static SPIConfig ls_spicfg = {
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NULL,
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IOPORT1,
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PA_SSEL1,
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CR0_DSS8BIT | CR0_FRFSPI | CR0_CLOCKRATE(0),
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254
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};
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/* MMC/SD over SPI driver configuration.*/
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static MMCConfig mmccfg = {&SPID1, &ls_spicfg, &hs_spicfg};
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/* Generic large buffer.*/
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uint8_t fbuff[1024];
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static FRESULT scan_files(BaseSequentialStream *chp, char *path) {
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FRESULT res;
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FILINFO fno;
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DIR dir;
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int i;
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char *fn;
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#if _USE_LFN
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fno.lfname = 0;
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fno.lfsize = 0;
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#endif
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res = f_opendir(&dir, path);
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if (res == FR_OK) {
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i = strlen(path);
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for (;;) {
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res = f_readdir(&dir, &fno);
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if (res != FR_OK || fno.fname[0] == 0)
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break;
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if (fno.fname[0] == '.')
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continue;
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fn = fno.fname;
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if (fno.fattrib & AM_DIR) {
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path[i++] = '/';
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strcpy(&path[i], fn);
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res = scan_files(chp, path);
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if (res != FR_OK)
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break;
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path[--i] = 0;
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}
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else {
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chprintf(chp, "%s/%s\r\n", path, fn);
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}
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}
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}
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return res;
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}
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/*===========================================================================*/
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/* Main and generic code. */
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/*===========================================================================*/
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/*
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* Red LEDs blinker thread, times are in milliseconds.
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*/
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static WORKING_AREA(waThread1, 128);
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static msg_t Thread1(void *arg) {
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(void)arg;
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chRegSetThreadName("blinker1");
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while (TRUE) {
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palClearPort(IOPORT1, PAL_PORT_BIT(PA_LED2));
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chThdSleepMilliseconds(200);
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palSetPort(IOPORT1, PAL_PORT_BIT(PA_LED1) | PAL_PORT_BIT(PA_LED2));
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chThdSleepMilliseconds(800);
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palClearPort(IOPORT1, PAL_PORT_BIT(PA_LED1));
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chThdSleepMilliseconds(200);
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palSetPort(IOPORT1, PAL_PORT_BIT(PA_LED1) | PAL_PORT_BIT(PA_LED2));
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chThdSleepMilliseconds(800);
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}
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return 0;
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}
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/*
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* Yellow LED blinker thread, times are in milliseconds.
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*/
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static WORKING_AREA(waThread2, 128);
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static msg_t Thread2(void *arg) {
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(void)arg;
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chRegSetThreadName("blinker2");
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while (TRUE) {
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palClearPad(IOPORT1, PA_LEDUSB);
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chThdSleepMilliseconds(200);
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palSetPad(IOPORT1, PA_LEDUSB);
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chThdSleepMilliseconds(300);
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}
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return 0;
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}
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/*
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* Executed as event handler at 500mS intervals.
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*/
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static void TimerHandler(eventid_t id) {
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(void)id;
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if (!palReadPad(IOPORT1, PA_BUTTON1)) {
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if (fs_ready) {
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FRESULT err;
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uint32_t clusters;
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FATFS *fsp;
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err = f_getfree("/", &clusters, &fsp);
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if (err != FR_OK) {
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chprintf((BaseSequentialStream *)&SD1, "FS: f_getfree() failed\r\n");
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return;
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}
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chprintf((BaseSequentialStream *)&SD1,
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"FS: %lu free clusters, %lu sectors per cluster, %lu bytes free\r\n",
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clusters, (uint32_t)MMC_FS.csize,
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clusters * (uint32_t)MMC_FS.csize * (uint32_t)MMCSD_BLOCK_SIZE);
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fbuff[0] = 0;
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scan_files((BaseSequentialStream *)&SD1, (char *)fbuff);
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}
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}
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else if (!palReadPad(IOPORT1, PA_BUTTON2)) {
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static WORKING_AREA(waTestThread, 256);
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Thread *tp = chThdCreateStatic(waTestThread, sizeof(waTestThread),
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NORMALPRIO, TestThread, &SD1);
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chThdWait(tp);
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buzzPlay(500, MS2ST(100));
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}
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}
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/*
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* MMC card insertion event.
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*/
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static void InsertHandler(eventid_t id) {
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FRESULT err;
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(void)id;
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buzzPlayWait(1000, MS2ST(100));
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buzzPlayWait(2000, MS2ST(100));
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chprintf((BaseSequentialStream *)&SD1, "MMC: inserted\r\n");
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/*
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* On insertion MMC initialization and FS mount.
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*/
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chprintf((BaseSequentialStream *)&SD1, "MMC: initialization ");
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if (mmcConnect(&MMCD1)) {
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chprintf((BaseSequentialStream *)&SD1, "failed\r\n");
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return;
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}
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chprintf((BaseSequentialStream *)&SD1, "ok\r\n");
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chprintf((BaseSequentialStream *)&SD1, "FS: mount ");
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err = f_mount(0, &MMC_FS);
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if (err != FR_OK) {
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chprintf((BaseSequentialStream *)&SD1, "failed\r\n");
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mmcDisconnect(&MMCD1);
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return;
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}
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fs_ready = TRUE;
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chprintf((BaseSequentialStream *)&SD1, "ok\r\n");
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buzzPlay(440, MS2ST(200));
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}
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/*
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* MMC card removal event.
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*/
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static void RemoveHandler(eventid_t id) {
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(void)id;
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chprintf((BaseSequentialStream *)&SD1, "MMC: removed\r\n");
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mmcDisconnect(&MMCD1);
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fs_ready = FALSE;
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buzzPlayWait(2000, MS2ST(100));
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buzzPlayWait(1000, MS2ST(100));
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}
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/*
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* Application entry point.
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*/
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int main(void) {
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static const evhandler_t evhndl[] = {
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TimerHandler,
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InsertHandler,
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RemoveHandler
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};
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static EvTimer evt;
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struct EventListener el0, el1, el2;
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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/*
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* Activates the serial driver 1 using the driver default configuration.
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*/
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sdStart(&SD1, NULL);
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/*
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* Buzzer driver initialization.
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*/
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buzzInit();
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/*
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* Initializes the MMC driver to work with SPI2.
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*/
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mmcObjectInit(&MMCD1);
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mmcStart(&MMCD1, &mmccfg);
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/*
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* Activates the card insertion monitor.
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*/
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tmr_init(&MMCD1);
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/*
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* Creates the blinker threads.
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*/
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chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
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chThdCreateStatic(waThread2, sizeof(waThread2), NORMALPRIO, Thread2, NULL);
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/*
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* Normal main() thread activity, in this demo it does nothing except
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* sleeping in a loop and listen for events.
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*/
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evtInit(&evt, MS2ST(500)); /* Initializes an event timer object. */
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evtStart(&evt); /* Starts the event timer. */
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chEvtRegister(&evt.et_es, &el0, 0); /* Registers on the timer event source. */
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chEvtRegister(&inserted_event, &el1, 1);
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chEvtRegister(&removed_event, &el2, 2);
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while (TRUE)
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chEvtDispatch(evhndl, chEvtWaitOne(ALL_EVENTS));
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return 0;
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}
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