sam3 port: add serial module.

[bertos.git] / bertos / cpu / cortex-m3 / drv / usb_stm32.c

diff --git a/bertos/cpu/cortex-m3/drv/usb_stm32.c b/bertos/cpu/cortex-m3/drv/usb_stm32.c
index 924f86d2095e22204576cdfe051d569835402d1f..879b2d6f0a828bd5724fe8dd6839e9c6fbc2cf35 100644 (file)
--- a/bertos/cpu/cortex-m3/drv/usb_stm32.c
+++ b/bertos/cpu/cortex-m3/drv/usb_stm32.c
@@ -54,17 +54,13 @@
 #include <drv/timer.h>
 #include <drv/usb.h>
 
+#include <mware/event.h>
+
 #include <string.h> /* memcpy() */
 
 #include "usb_stm32.h"
 
-/* XXX: consider to move this to cfg/compiler.h */
-#define ALIGNED(x)     __attribute__ ((__aligned__(x)))
-
 /* XXX: consider to move this to cfg/macros.h */
-#define ALIGN_UP(value, align) (((value) & ((align) - 1)) ? \
-                               (((value) + ((align) - 1)) & ~((align) - 1)) : \
-                               (value))
 
 /* XXX: redefine this to make it usable within C expression */
 #define _MIN(a,b)      (((a) < (b)) ? (a) : (b))
@@ -154,7 +150,6 @@ static stm32_UsbMemSlot memory_buffer[EP_MAX_NUM];
 /* Endpoint TX and RX buffers */
 /// \cond
 /* XXX: use the empty cond section to silent a buggy doxygen warning */
-static bool rx_done, tx_done;
 static size_t rx_size, tx_size;
 
 #define EP_BUFFER_SIZE _MIN(CONFIG_USB_BUFSIZE, USB_XFER_MAX_SIZE)
@@ -163,6 +158,8 @@ STATIC_ASSERT(!(EP_BUFFER_SIZE & 0x03));
 static uint8_t ep_buffer[EP_MAX_NUM][EP_BUFFER_SIZE] ALIGNED(4);
 /// \endcond
 
+static Event usb_event_done[EP_MAX_SLOTS];
+
 /* Allocate a free block of the packet memory */
 static stm32_UsbMemSlot *usb_malloc(void)
 {
@@ -1117,7 +1114,7 @@ static void usb_endpointRead_complete(int ep)
        }
        ASSERT(!(ep & 0x01));
 
-       rx_done = true;
+       event_do(&usb_event_done[ep >> 1]);
        rx_size = ep_cnfg[ep].size;
 }
 
@@ -1150,14 +1147,13 @@ ssize_t usb_endpointRead(int ep, void *buffer, ssize_t size)
        if (UNLIKELY(!size))
                return 0;
        size = MIN(size, max_size);
-       rx_done = false;
+       event_initGeneric(&usb_event_done[ep_num >> 1]);
        rx_size = 0;
 
        /* Blocking read */
        __usb_ep_read(ep_num, ep_buffer[ep_num], size,
                                usb_endpointRead_complete);
-       while (!rx_done)
-               cpu_relax();
+       event_wait(&usb_event_done[ep_num >> 1]);
        memcpy(buffer, ep_buffer[ep_num], rx_size);
 
        return rx_size;
@@ -1172,7 +1168,7 @@ static void usb_endpointWrite_complete(int ep)
        }
        ASSERT(ep & 0x01);
 
-       tx_done = true;
+       event_do(&usb_event_done[ep >> 1]);
        tx_size = ep_cnfg[ep].size;
 }
 
@@ -1205,15 +1201,14 @@ ssize_t usb_endpointWrite(int ep, const void *buffer, ssize_t size)
        if (UNLIKELY(!size))
                return 0;
        size = MIN(size, max_size);
-       tx_done = false;
+       event_initGeneric(&usb_event_done[ep_num >> 1]);
        tx_size = 0;
 
        /* Blocking write */
        memcpy(ep_buffer[ep_num], buffer, size);
        __usb_ep_write(ep_num, ep_buffer[ep_num], size,
                                usb_endpointWrite_complete);
-       while (!tx_done)
-               cpu_relax();
+       event_wait(&usb_event_done[ep_num >> 1]);
 
        return tx_size;
 }
@@ -1585,6 +1580,7 @@ static int usb_set_config_state(uint32_t conf)
                        udc.alt[i] = 0;
                usb_set_device_state(USB_STATE_CONFIGURED);
                usb_dev->configured = true;
+               event_do(&usb_event_done[0]);
                LOG_INFO("%s: device configured\n", __func__);
        }
        else
@@ -1921,8 +1917,11 @@ int usb_deviceRegister(UsbDevice *dev)
        MOD_CHECK(proc);
 #endif
        usb_dev = dev;
+       usb_dev->configured = false;
+
+       event_initGeneric(&usb_event_done[0]);
        usb_init();
-       while (!usb_dev->configured)
-               cpu_relax();
+       event_wait(&usb_event_done[0]);
+
        return 0;
 }