I2C. Merged code from trunk.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/i2c_dev@3036 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 412 insertions, 0 deletions

diff --git a/demos/ARMCM3-STM32F103ZG-FATFS/main.c b/demos/ARMCM3-STM32F103ZG-FATFS/main.c
new file mode 100644
index 000000000..2ef7a40cc
--- /dev/null
+++ b/demos/ARMCM3-STM32F103ZG-FATFS/main.c
@@ -0,0 +1,412 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,

+                 2011 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"

+

+/*===========================================================================*/

+/* Card insertion monitor.                                                   */

+/*===========================================================================*/

+

+#define SDC_POLLING_INTERVAL            10

+#define SDC_POLLING_DELAY               10

+

+/**

+ * @brief   Card monitor timer.

+ */

+static VirtualTimer tmr;

+

+/**

+ * @brief   Debounce counter.

+ */

+static unsigned cnt;

+

+/**

+ * @brief   Card event sources.

+ */

+static EventSource inserted_event, removed_event;

+

+/**

+ * @brief   Inserion monitor function.

+ *

+ * @param[in] sdcp      pointer to the @p SDCDriver object

+ *

+ * @notapi

+ */

+bool_t sdc_lld_is_card_inserted(SDCDriver *sdcp) {

+

+  (void)sdcp;

+  return !palReadPad(GPIOF, GPIOF_SD_DETECT);

+}

+

+/**

+ * @brief   Protection detection.

+ * @note    Not supported.

+ *

+ * @param[in] sdcp      pointer to the @p SDCDriver object

+ *

+ * @notapi

+ */

+bool_t sdc_lld_is_write_protected(SDCDriver *sdcp) {

+

+  (void)sdcp;

+  return FALSE;

+}

+

+/**

+ * @brief   Inserion monitor timer callback function.

+ *

+ * @param[in] p         pointer to the @p SDCDriver object

+ *

+ * @notapi

+ */

+static void tmrfunc(void *p) {

+  SDCDriver *sdcp = p;

+

+  if (cnt > 0) {

+    if (sdcIsCardInserted(sdcp)) {

+      if (--cnt == 0) {

+        chEvtBroadcastI(&inserted_event);

+      }

+    }

+    else

+      cnt = SDC_POLLING_INTERVAL;

+  }

+  else {

+    if (!sdcIsCardInserted(sdcp)) {

+      cnt = SDC_POLLING_INTERVAL;

+      chEvtBroadcastI(&removed_event);

+    }

+  }

+  chVTSetI(&tmr, MS2ST(SDC_POLLING_DELAY), tmrfunc, sdcp);

+}

+

+/**

+ * @brief   Polling monitor start.

+ *

+ * @param[in] sdcp      pointer to the @p SDCDriver object

+ *

+ * @notapi

+ */

+static void tmr_init(SDCDriver *sdcp) {

+

+  chEvtInit(&inserted_event);

+  chEvtInit(&removed_event);

+  chSysLock();

+  cnt = SDC_POLLING_INTERVAL;

+  chVTSetI(&tmr, MS2ST(SDC_POLLING_DELAY), tmrfunc, sdcp);

+  chSysUnlock();

+}

+

+/*===========================================================================*/

+/* FatFs related.                                                            */

+/*===========================================================================*/

+

+/**

+ * @brief FS object.

+ */

+FATFS SDC_FS;

+

+/* FS mounted and ready.*/

+static bool_t fs_ready = FALSE;

+

+/* 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(2048)

+#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 : %u bytes", chCoreStatus());

+  shellPrintLine(chp, buf);

+  siprintf(buf, "heap fragments   : %u", n);

+  shellPrintLine(chp, buf);

+  siprintf(buf, "heap free total  : %u 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",

+    "SNDMSGQ",

+    "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;

+  DWORD 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)SDC_FS.csize,

+           clusters * (uint32_t)SDC_FS.csize * (uint32_t)SDC_BLOCK_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

+};

+

+/*===========================================================================*/

+/* Main and generic code.                                                    */

+/*===========================================================================*/

+

+/*

+ * SD card insertion event.

+ */

+static void InsertHandler(eventid_t id) {

+  FRESULT err;

+

+  (void)id;

+  /*

+   * On insertion SDC initialization and FS mount.

+   */

+  if (sdcConnect(&SDCD1))

+    return;

+

+  err = f_mount(0, &SDC_FS);

+  if (err != FR_OK) {

+    sdcDisconnect(&SDCD1);

+    return;

+  }

+  fs_ready = TRUE;

+}

+

+/*

+ * SD card removal event.

+ */

+static void RemoveHandler(eventid_t id) {

+

+  (void)id;

+  if (sdcGetDriverState(&SDCD1) == SDC_ACTIVE)

+    sdcDisconnect(&SDCD1);

+  fs_ready = FALSE;

+}

+

+/*

+ * Red LED blinker thread, times are in milliseconds.

+ */

+static WORKING_AREA(waThread1, 128);

+static msg_t Thread1(void *arg) {

+

+  (void)arg;

+  while (TRUE) {

+    palClearPad(GPIOF, GPIOF_LED4);

+    palSetPad(GPIOF, GPIOF_LED1);

+    chThdSleepMilliseconds(250);

+    palClearPad(GPIOF, GPIOF_LED1);

+    palSetPad(GPIOF, GPIOF_LED2);

+    chThdSleepMilliseconds(250);

+    palClearPad(GPIOF, GPIOF_LED2);

+    palSetPad(GPIOF, GPIOF_LED3);

+    chThdSleepMilliseconds(250);

+    palClearPad(GPIOF, GPIOF_LED3);

+    palSetPad(GPIOF, GPIOF_LED4);

+    chThdSleepMilliseconds(250);

+  }

+}

+

+/*

+ * Application entry point.

+ */

+int main(void) {

+  static const evhandler_t evhndl[] = {

+    InsertHandler,

+    RemoveHandler

+  };

+  Thread *shelltp = NULL;

+  struct EventListener el0, el1;

+

+  /*

+   * System initializations.

+   * - HAL initialization, this also initializes the configured device drivers

+   *   and performs the board-specific initializations.

+   * - Kernel initialization, the main() function becomes a thread and the

+   *   RTOS is active.

+   */

+  halInit();

+  chSysInit();

+

+  /*

+   * Activates the serial driver 1 and SDC driver 1 using default

+   * configuration.

+   */

+  sdStart(&SD1, NULL);

+  sdcStart(&SDCD1, NULL);

+

+  /*

+   * Shell manager initialization.

+   */

+  shellInit();

+

+  /*

+   * Activates the card insertion monitor.

+   */

+  tmr_init(&SDCD1);

+

+  /*

+   * 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.

+   */

+  chEvtRegister(&inserted_event, &el0, 0);

+  chEvtRegister(&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));

+  }

+}