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usbdevice/core: use static message queue 

Although currently the only message send to the queue is struct
udev_msg, in order to keep backward compacity and for extention in the
future, we set the size of message to 32.
This commit is contained in:
Grissiom 2013-05-12 15:32:44 +08:00
parent f0d50a7b36
commit b3e38f53b4
1 changed files with 11 additions and 4 deletions
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15
components/drivers/usb/usbdevice/core/core.c
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@ -1274,7 +1274,7 @@ rt_err_t rt_usbd_set_config(udevice_t device, rt_uint8_t value)
return RT_TRUE;
}
static struct rt_messagequeue *usb_mq;
static struct rt_messagequeue usb_mq;
/**
* This function is the main entry of usb device thread, it is in charge of
@ -1294,7 +1294,7 @@ static void rt_usbd_thread_entry(void* parameter)
uep_t ep;
/* receive message */
if(rt_mq_recv(usb_mq,
if(rt_mq_recv(&usb_mq,
&msg, sizeof(struct udev_msg),
RT_WAITING_FOREVER) != RT_EOK )
continue;
@ -1341,13 +1341,19 @@ rt_err_t rt_usbd_post_event(struct udev_msg* msg, rt_size_t size)
RT_ASSERT(msg != RT_NULL);
/* send message to usb message queue */
return rt_mq_send(usb_mq, (void*)msg, size);
return rt_mq_send(&usb_mq, (void*)msg, size);
}
ALIGN(RT_ALIGN_SIZE)
static rt_uint8_t usb_thread_stack[RT_USBD_THREAD_STACK_SZ];
static struct rt_thread usb_thread;
#define USBD_MQ_MSG_SZ 32
#define USBD_MQ_MAX_MSG 16
/* internal of the message queue: every message is associated with a pointer,
* so in order to recveive USBD_MQ_MAX_MSG messages, we have to allocate more
* than USBD_MQ_MSG_SZ*USBD_MQ_MAX_MSG memery. */
static rt_uint8_t usb_mq_pool[(USBD_MQ_MSG_SZ+sizeof(void*))*USBD_MQ_MAX_MSG];
/**
* This function will initialize usb device thread.
@ -1360,7 +1366,8 @@ rt_err_t rt_usbd_core_init(void)
rt_list_init(&device_list);
/* create an usb message queue */
usb_mq = rt_mq_create("usbd", 32, 16, RT_IPC_FLAG_FIFO);
rt_mq_init(&usb_mq, "usbd", usb_mq_pool, USBD_MQ_MSG_SZ,
sizeof(usb_mq_pool), RT_IPC_FLAG_FIFO);
/* init usb device thread */
rt_thread_init(&usb_thread, "usbd", rt_usbd_thread_entry, RT_NULL,