git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1299 35acf78f-673a-0410-8e92-d51de3d6d3f4

3 files changed, 96 insertions, 48 deletions

diff --git a/demos/ARMCM3-STM32F103-FATFS-GCC/Makefile b/demos/ARMCM3-STM32F103-FATFS-GCC/Makefile
index afb044c49..b84adf3a5 100644
--- a/demos/ARMCM3-STM32F103-FATFS-GCC/Makefile
+++ b/demos/ARMCM3-STM32F103-FATFS-GCC/Makefile
@@ -77,6 +77,7 @@ CSRC = ${PORTSRC} \
        ${CHIBIOS}/os/io/platforms/STM32/spi_lld.c \

        ${CHIBIOS}/os/io/platforms/STM32/stm32_dma.c \

        ${CHIBIOS}/os/various/evtimer.c \

+       ${CHIBIOS}/os/various/syscalls.c \

        board.c main.c
 

 # C++ sources that can be compiled in ARM or THUMB mode depending on the global

@@ -158,7 +159,7 @@ CPPWARN = -Wall -Wextra
 #

 

 # List all default C defines here, like -D_DEBUG=1

-DDEFS =

+DDEFS = -DSTDOUT_SD=SD2 -DSTDIN_SD=SD2

 

 # List all default ASM defines here, like -D_DEBUG=1

 DADEFS =

diff --git a/demos/ARMCM3-STM32F103-FATFS-GCC/main.c b/demos/ARMCM3-STM32F103-FATFS-GCC/main.c
index 5fd6737a6..2ddf02b3f 100644
--- a/demos/ARMCM3-STM32F103-FATFS-GCC/main.c
+++ b/demos/ARMCM3-STM32F103-FATFS-GCC/main.c
@@ -27,52 +27,41 @@
 

 #include <ff.h>

 

-#include "board.h"

+#include <stdio.h>

+#include <string.h>

 

-/*

- * Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0, MSb first).
- */

-static SPIConfig hs_spicfg = {

-  IOPORT2, GPIOB_SPI2NSS, 0

-};

+#include "board.h"

 

-/*

- * Low speed SPI configuration (281.250KHz, CPHA=0, CPOL=0, MSb first).

+/**

+ * @brief FS object.

  */

-static SPIConfig ls_spicfg = {

-  IOPORT2, GPIOB_SPI2NSS, SPI_CR1_BR_2 | SPI_CR1_BR_1

-};

+FATFS MMC_FS;

 

-/*

- * MMC driver instance.
+/**

+ * MMC driver instance.

  */

 MMCDriver MMCD1;

 

-/*

- * MMC configuration (empty).
- */

-static const MMCConfig mmc_cfg = {};

+/* FS mounted and ready.*/

+static bool_t fs_ready = FALSE;

 

-/*

- * Card insertion verification.
- */

-static bool_t mmc_is_inserted(void) {

+/* Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0, MSb first).*/

+static SPIConfig hs_spicfg = {IOPORT2, GPIOB_SPI2NSS, 0};

 

-  return palReadPad(IOPORT3, GPIOC_MMCCP);

-}

+/* 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};

 

-/*

- * Card protection verification.
- */

-static bool_t mmc_is_protected(void) {

+/* MMC configuration (empty).*/

+static const MMCConfig mmc_cfg = {};

 

-  return !palReadPad(IOPORT3, GPIOC_MMCWP);

-}

+/* Card insertion verification.*/

+static bool_t mmc_is_inserted(void) {return palReadPad(IOPORT3, GPIOC_MMCCP);}

 

-/**

- * @brief FS object.
- */

-FATFS MMC_FS;

+/* 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.

@@ -90,14 +79,65 @@ static msg_t Thread1(void *arg) {
   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))

-    TestThread(&SD2);

+  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);

+  }

 }

 

 /*

@@ -105,25 +145,27 @@ static void TimerHandler(eventid_t id) {
  */

 static void InsertHandler(eventid_t id) {

   FRESULT err;

-  uint32_t clusters;

-  FATFS *fsp;

 

   (void)id;

+  iprintf("MMC: inserted\r\n");

   /*

    * On insertion MMC initialization and FS mount.
    */

-  if (mmcConnect(&MMCD1))

-    return;

-  err = f_mount(0, &MMC_FS);

-  if (err != FR_OK) {

-    mmcDisconnect(&MMCD1);

+  iprintf("MMC: initialization ");

+  if (mmcConnect(&MMCD1)) {

+    iprintf("failed\r\n");

     return;

   }

-  err = f_getfree("/", &clusters, &fsp);

+  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");

 }

 

 /*

@@ -132,6 +174,8 @@ static void InsertHandler(eventid_t id) {
 static void RemoveHandler(eventid_t id) {

 

   (void)id;

+  iprintf("MMC: removed\r\n");

+  fs_ready = FALSE;

 }

 

 /*

diff --git a/demos/ARMCM3-STM32F103-FATFS-GCC/readme.txt b/demos/ARMCM3-STM32F103-FATFS-GCC/readme.txt
index 09f544035..65f40a89a 100644
--- a/demos/ARMCM3-STM32F103-FATFS-GCC/readme.txt
+++ b/demos/ARMCM3-STM32F103-FATFS-GCC/readme.txt
@@ -8,9 +8,12 @@ The demo will on an Olimex STM32-P103 board.
 

 ** The Demo **

 

-The demo flashes the board LED using a thread, by pressing the button located

-on the board the test procedure is activated with output on the serial port

-COM2 (USART2).

+This demo shows how to integrate the FatFs file system and use the SPI and MMC

+drivers.

+The demo flashes the board LED using a thread and monitors the MMC slot for

+a card insertion. By pressing the button located on the board while a card is

+inserted a directory dump on the serial port is performed, if a card is not

+inserted then the test procedure is activated.

 

 ** Build Procedure **