Revision 3:3eb41d749f9a, committed 2012-08-15

Comitter:

va009039

Date:

Wed Aug 15 13:52:53 2012 +0000

Parent:

2:812d604caad4

Commit message:

add USB_USE_MALLOC

Changed in this revision

--- a/usb/usb_mem.cpp	Wed Aug 08 16:21:32 2012 +0000
+++ b/usb/usb_mem.cpp	Wed Aug 15 13:52:53 2012 +0000
@@ -20,6 +20,8 @@
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
+#include "usbconfig.h"
+#ifndef USB_USE_MALLOC
 #include "mbed.h"
 #define __DEBUG
 #include "mydbg.h"
@@ -252,3 +254,4 @@
     DBG_ASSERT(utd->type != 0);
     return utd->type == 2;
 }
+#endif // USB_USE_MALLOC

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usb/usb_mem2.cpp	Wed Aug 15 13:52:53 2012 +0000
@@ -0,0 +1,148 @@
+#include "usbconfig.h"
+#ifdef USB_USE_MALLOC
+#include "mbed.h"
+#define __DEBUG
+#include "mydbg.h"
+#include "usb_mem.h"
+#include "UsbInc.h"
+
+#define HCCA_SIZE 0x100
+#define ED_SIZE 0x10
+#define TD_SIZE 0x10
+#define ITD_SIZE 0x20
+#define UTD_SIZE (32+16)
+#define BP_SIZE  (192*4)
+
+static volatile byte* usb_hcca;  //256 bytes aligned!
+
+inline static void* malloc_align(size_t size, size_t alignment)
+{
+    void* p;
+    int r = posix_memalign(&p, alignment, size);
+    if (r == 0) {
+        return p;
+    }
+    return NULL;
+}
+
+static void utd_init()
+{
+    DBG_ASSERT(sizeof(HCTD) == 16);
+    DBG_ASSERT(sizeof(HCITD) == 32);
+    DBG_ASSERT(sizeof(HCUTD) == 48);
+}
+
+static void pb_init()
+{
+}
+
+void usb_mem_init()
+{
+    usb_hcca = (uint8_t*)malloc_align(HCCA_SIZE, 256);
+
+    utd_init();
+    pb_init();
+
+    DBG("--- Memory Map --- \n");
+    DBG("usb_hcca       =%p\n", usb_hcca);
+    DBG_ASSERT(((uint32_t)usb_hcca % 256) == 0);
+}
+
+volatile byte* usb_get_hcca()
+{
+    return usb_hcca;
+}
+
+volatile byte* usb_get_ed()
+{
+    return (uint8_t*)malloc_align(ED_SIZE, 16);
+}
+
+static uint8_t* usb_get_utd(int al)
+{
+    return (uint8_t*)malloc_align(UTD_SIZE, al);
+}
+
+volatile byte* usb_get_td(uint32_t endpoint)
+{
+    DBG_ASSERT(endpoint);
+    uint8_t* td = usb_get_utd(16);
+    if (td) {
+        HCUTD* utd = (HCUTD*)td;
+        memset(utd, 0x00, sizeof(HCTD));
+        utd->type = 1;
+        utd->UsbEndpoint = endpoint;
+    }
+    return td;
+}
+
+volatile byte* usb_get_itd(uint32_t endpoint)
+{
+    DBG_ASSERT(endpoint);
+    uint8_t* itd = usb_get_utd(32);
+    if (itd) {
+        HCUTD* utd = (HCUTD*)itd;
+        memset(utd, 0x00, sizeof(HCITD));
+        utd->type = 2;
+        utd->UsbEndpoint = endpoint;
+    }
+    return itd;
+}
+
+volatile byte* usb_get_bp(int size)
+{
+    DBG_ASSERT(size >= 128 && size <= BP_SIZE);
+    if (size > BP_SIZE) {
+        return NULL;
+    }
+    return (byte*)malloc(size);
+}
+
+int usb_bp_size()
+{
+    return BP_SIZE; 
+}
+
+void usb_free_ed(volatile byte* ed)
+{
+    free((void*)ed);
+}
+
+static void usb_free_utd(volatile uint8_t* utd)
+{
+    free((void*)utd);
+}
+
+void usb_free_td(volatile byte* td)
+{
+    usb_free_utd(td);
+    return;
+}
+
+void usb_free_itd(volatile byte* itd)
+{
+    usb_free_utd(itd);
+    return;
+}
+
+void usb_free_bp(volatile byte* bp)
+{
+    free((void*)bp);
+}
+
+bool usb_is_td(volatile byte* td)
+{
+    DBG_ASSERT(td);
+    HCUTD* utd = (HCUTD*)td;
+    DBG_ASSERT(utd->type != 0);
+    return utd->type == 1;
+}
+
+bool usb_is_itd(volatile byte* itd)
+{
+    DBG_ASSERT(itd);
+    HCUTD* utd = (HCUTD*)itd;
+    DBG_ASSERT(utd->type != 0);
+    return utd->type == 2;
+}
+#endif // USB_USE_MALLOC

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbconfig.h	Wed Aug 15 13:52:53 2012 +0000
@@ -0,0 +1,7 @@
+#ifndef USBCONFIG_H
+#define USBCONFIG_H
+
+#define USB_USE_MALLOC
+//#define USB_USE_MALLOC
+
+#endif // USBCONFIG_H
\ No newline at end of file