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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2010-07-03 07:53:04 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2010-07-03 07:53:04 +0000
commit3efae5da4a8da8a0d76db680f9031887eb9bc9a2 (patch)
treebd0a9a972f71c1f8557192d4a4af48569eb876bb /demos/ARM7-AT91SAM7S-FATFS-GCC/main.c
parentdd8ed26a097f263222c08a0cc6a5c48871d4dbbc (diff)
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Diffstat (limited to 'demos/ARM7-AT91SAM7S-FATFS-GCC/main.c')
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diff --git a/demos/ARM7-AT91SAM7S-FATFS-GCC/main.c b/demos/ARM7-AT91SAM7S-FATFS-GCC/main.c
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index 000000000..478d2a606
--- /dev/null
+++ b/demos/ARM7-AT91SAM7S-FATFS-GCC/main.c
@@ -0,0 +1,350 @@
+/*
+ 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 "shell.h"
+#include "evtimer.h"
+#include "ff.h"
+
+#define MAX_SPI_BITRATE 100
+#define MIN_SPI_BITRATE 250
+
+/**
+ * @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 (__MHz, NCPHA=1, CPOL=0).*/
+static SPIConfig hs_spicfg = {
+ IOPORT1,
+ PIOA_MMC_NPCS0,
+ AT91C_SPI_MSTR | AT91C_SPI_MODFDIS,
+ (MAX_SPI_BITRATE << 8) | AT91C_SPI_NCPHA | AT91C_SPI_BITS_8
+};
+
+/* Low speed SPI configuration (192KHz, NCPHA=1, CPOL=0).*/
+static SPIConfig ls_spicfg = {
+ IOPORT1,
+ PIOA_MMC_NPCS0,
+ AT91C_SPI_MSTR | AT91C_SPI_MODFDIS,
+ (MIN_SPI_BITRATE << 8) | AT91C_SPI_NCPHA | AT91C_SPI_BITS_8
+};
+
+/* MMC configuration (empty).*/
+static const MMCConfig mmc_cfg = {};
+
+/* Card insertion verification.*/
+static bool_t mmc_is_inserted(void) {
+ return !palReadPad(IOPORT1, PIOA_MMC_CP);
+}
+
+/* Card protection verification.*/
+static bool_t mmc_is_protected(void) {
+ return palReadPad(IOPORT1, PIOA_MMC_WP);
+}
+
+/* Generic large buffer.*/
+uint8_t fbuff[1024];
+
+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;
+}
+
+/*===========================================================================*/
+/* Command line related. */
+/*===========================================================================*/
+
+#define SHELL_WA_SIZE THD_WA_SIZE(1024)
+#define TEST_WA_SIZE THD_WA_SIZE(256)
+
+static void cmd_mem(BaseChannel *chp, int argc, char *argv[]) {
+ size_t n, size;
+ char buf[52];
+
+ (void)argv;
+ if (argc > 0) {
+ shellPrintLine(chp, "Usage: mem");
+ return;
+ }
+ n = chHeapStatus(NULL, &size);
+ siprintf(buf, "core free memory : %lu bytes", chCoreStatus());
+ shellPrintLine(chp, buf);
+ siprintf(buf, "heap fragments : %lu", n);
+ shellPrintLine(chp, buf);
+ siprintf(buf, "heap free total : %lu bytes", size);
+ shellPrintLine(chp, buf);
+}
+
+static void cmd_threads(BaseChannel *chp, int argc, char *argv[]) {
+ static const char *states[] = {
+ "READY",
+ "CURRENT",
+ "SUSPENDED",
+ "WTSEM",
+ "WTMTX",
+ "WTCOND",
+ "SLEEPING",
+ "WTEXIT",
+ "WTOREVT",
+ "WTANDEVT",
+ "SNDMSG",
+ "WTMSG",
+ "FINAL"
+ };
+ Thread *tp;
+ char buf[60];
+
+ (void)argv;
+ if (argc > 0) {
+ shellPrintLine(chp, "Usage: threads");
+ return;
+ }
+ shellPrintLine(chp, " addr stack prio refs state time");
+ tp = chRegFirstThread();
+ do {
+ siprintf(buf, "%8lx %8lx %4u %4i %9s %u",
+ (uint32_t)tp, (uint32_t)tp->p_ctx.r13,
+ (unsigned int)tp->p_prio, tp->p_refs - 1,
+ states[tp->p_state], (unsigned int)tp->p_time);
+ shellPrintLine(chp, buf);
+ tp = chRegNextThread(tp);
+ } while (tp != NULL);
+}
+
+static void cmd_test(BaseChannel *chp, int argc, char *argv[]) {
+ Thread *tp;
+
+ (void)argv;
+ if (argc > 0) {
+ shellPrintLine(chp, "Usage: test");
+ return;
+ }
+ tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriority(),
+ TestThread, chp);
+ if (tp == NULL) {
+ shellPrintLine(chp, "out of memory");
+ return;
+ }
+ chThdWait(tp);
+}
+
+static void cmd_tree(BaseChannel *chp, int argc, char *argv[]) {
+ FRESULT err;
+ uint32_t clusters;
+ FATFS *fsp;
+
+ (void)argv;
+ if (argc > 0) {
+ shellPrintLine(chp, "Usage: tree");
+ return;
+ }
+ if (!fs_ready) {
+ shellPrintLine(chp, "File System not mounted");
+ return;
+ }
+ err = f_getfree("/", &clusters, &fsp);
+ if (err != FR_OK) {
+ shellPrintLine(chp, "FS: f_getfree() failed");
+ return;
+ }
+ siprintf((void *)fbuff,
+ "FS: %lu free clusters, %lu sectors per cluster, %lu bytes free",
+ clusters, (uint32_t)MMC_FS.csize,
+ clusters * (uint32_t)MMC_FS.csize * (uint32_t)MMC_SECTOR_SIZE);
+ shellPrintLine(chp, (void *)fbuff);
+ fbuff[0] = 0;
+ scan_files((char *)fbuff);
+}
+
+static const ShellCommand commands[] = {
+ {"mem", cmd_mem},
+ {"threads", cmd_threads},
+ {"test", cmd_test},
+ {"tree", cmd_tree},
+ {NULL, NULL}
+};
+
+static const ShellConfig shell_cfg1 = {
+ (BaseChannel *)&SD1,
+ commands
+};
+
+/*
+ * LED1 blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+ (void)arg;
+ while (TRUE) {
+ palTogglePad(IOPORT1, PIOA_LED1);
+ if (fs_ready)
+ chThdSleepMilliseconds(200);
+ else
+ chThdSleepMilliseconds(500);
+ }
+ return 0;
+}
+
+/*
+ * LED2 blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread2, 64);
+static msg_t Thread2(void *p) {
+
+ (void)p;
+ while (TRUE) {
+ palSetPad(IOPORT1, PIOA_LED2);
+ chThdSleepMilliseconds(100);
+ palClearPad(IOPORT1, PIOA_LED2);
+ chThdSleepMilliseconds(900);
+ }
+ return 0;
+}
+
+/*
+ * MMC card insertion event.
+ */
+static void InsertHandler(eventid_t id) {
+ FRESULT err;
+
+ (void)id;
+ /*
+ * On insertion MMC initialization and FS mount.
+ */
+ if (mmcConnect(&MMCD1)) {
+ return;
+ }
+ err = f_mount(0, &MMC_FS);
+ if (err != FR_OK) {
+ mmcDisconnect(&MMCD1);
+ return;
+ }
+ fs_ready = TRUE;
+}
+
+/*
+ * MMC card removal event.
+ */
+static void RemoveHandler(eventid_t id) {
+
+ (void)id;
+ 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[] = {
+ InsertHandler,
+ RemoveHandler
+ };
+ Thread *shelltp = NULL;
+ struct EventListener el0, el1;
+
+ (void)argc;
+ (void)argv;
+
+ /*
+ * Activates the serial driver 1 using the driver default configuration.
+ */
+ sdStart(&SD1, NULL);
+
+ /*
+ * Shell manager initialization.
+ */
+ shellInit();
+
+ /*
+ * Initializes the MMC driver to work with SPI.
+ */
+ palSetPadMode(IOPORT1, PIOA_MMC_NPCS0, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPad(IOPORT1, PIOA_MMC_NPCS0);
+ mmcObjectInit(&MMCD1, &SPID,
+ &ls_spicfg, &hs_spicfg,
+ mmc_is_protected, mmc_is_inserted);
+ mmcStart(&MMCD1, &mmc_cfg);
+
+ /*
+ * Creates the blinker threads.
+ */
+ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+ chThdCreateStatic(waThread2, sizeof(waThread2), NORMALPRIO, Thread2, NULL);
+
+ /*
+ * Normal main() thread activity, in this demo it does nothing except
+ * sleeping in a loop and listen for events.
+ */
+ chEvtRegister(&MMCD1.mmc_inserted_event, &el0, 0);
+ chEvtRegister(&MMCD1.mmc_removed_event, &el1, 1);
+ while (TRUE) {
+ if (!shelltp)
+ shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);
+ else if (chThdTerminated(shelltp)) {
+ chThdRelease(shelltp); /* Recovers memory of the previous shell. */
+ shelltp = NULL; /* Triggers spawning of a new shell. */
+ }
+ chEvtDispatch(evhndl, chEvtWaitOne(ALL_EVENTS));
+ }
+ return 0;
+}