Merge pull request #20 from prife/simmerge

some bug fix after the recently merge from simmerge branch

bsp/simulator/.gdbinit

+handle SIGUSR1 nostop noignore noprint 
+handle SIGUSR2 nostop noignore noprint
+handle SIGALRM nostop noignore noprint

bsp/simulator/drivers/sd_sim.c

@@ -185,9 +185,26 @@ rt_err_t rt_hw_sdcard_init(const char *spi_device_name)
 
 #ifdef RT_USING_FINSH
 #include <finsh.h>
-void eraseall(void)
+int sd_erase(void)
 {
-    printf("had not implemented yet!\n");
+    rt_uint32_t index;
+    char * buffer;
+    struct rt_device *device;
+    device = &_sdcard.parent;
+    if ((buffer = rt_malloc(SECTOR_SIZE)) == RT_NULL)
+    {
+        rt_kprintf("out of memory\n");
+        return -1;
+    }
+
+    memset(buffer, 0, SECTOR_SIZE);
+    /* just erase the MBR! */
+    for (index = 0; index < 2; index ++)
+    {
+        rt_sdcard_write(device, index, buffer, SECTOR_SIZE);
+    }
+    rt_free(buffer);
+    return 0;
 }
-FINSH_FUNCTION_EXPORT(eraseall, erase all block in SPI flash);
+FINSH_FUNCTION_EXPORT(sd_erase, erase all block in SPI flash);
 #endif

bsp/simulator/drivers/sdl_fb.c

@@ -141,6 +141,7 @@ static void sdlfb_hw_init(void)
 #include  <mmsystem.h>
 #else
 #include <pthread.h>
+#include <signal.h>
 #endif
 
 #include  <stdio.h>
@@ -158,8 +159,15 @@ static void *sdl_loop(void *lpParam)
     int quit = 0;
     SDL_Event event;
     int button_state = 0;
-
     rt_device_t device;
+
+#ifndef _WIN32
+    sigset_t  sigmask, oldmask;
+    /* set the getchar without buffer */
+    sigfillset(&sigmask);
+    pthread_sigmask(SIG_BLOCK, &sigmask, &oldmask);
+#endif
+
     sdlfb_hw_init();
 
     device = rt_device_find("sdl");
@@ -315,14 +323,14 @@ void rt_hw_sdl_start(void)
     }
     ResumeThread(thread);
 #else
-	/* Linux */
-	pthread_t pid;
+    /* Linux */
+    pthread_t pid;
     int res;
     res = pthread_create(&pid, NULL, &sdl_loop, NULL);
     if (res)
     {
         printf("pthread create sdl thread faild, <%d>\n", res);
         exit(EXIT_FAILURE);
-	}
+    }
 #endif
 }

bsp/simulator/gcc.ld

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components/dfs/filesystems/elmfat/dfs_elm.c

@@ -123,7 +123,12 @@ int dfs_elm_mount(struct dfs_filesystem *fs, unsigned long rwflag, const void *d
         rt_snprintf(drive, sizeof(drive), "%d:/", index);
         dir = (DIR *)rt_malloc(sizeof(DIR));
         if (dir == RT_NULL)
+        {
+            f_mount((BYTE)index, RT_NULL);
+            disk[index] = RT_NULL;
+            rt_free(fat);
             return -DFS_STATUS_ENOMEM;
+        }
 
         /* open the root directory to test whether the fatfs is valid */
         result = f_opendir(dir, drive);
@@ -137,6 +142,7 @@ int dfs_elm_mount(struct dfs_filesystem *fs, unsigned long rwflag, const void *d
     }
 
 __err:
+    f_mount((BYTE)index, RT_NULL);
     disk[index] = RT_NULL;
     rt_free(fat);
     return elm_result_to_dfs(result);