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[Kernel] Add signal implementation.

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1. Add signal implementation;
2. Change the 'rt_uint8_t' of cmd to 'int';
This commit is contained in:
bernard
2017-10-15 22:31:53 +08:00
parent cd215b2545
commit b27c7e4826
11 changed files with 479 additions and 34 deletions
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src/device.c
+13 -3
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@@ -56,6 +56,11 @@ rt_err_t rt_device_register(rt_device_t dev,
dev->ref_count = 0;
dev->open_flag = 0;
#if defined(RT_USING_DFS) && defined(RT_USING_DFS_DEVFS)
dev->fops = RT_NULL;
rt_list_init(&(dev->wait_queue));
#endif
return RT_EOK;
}
RTM_EXPORT(rt_device_register);
@@ -213,11 +218,16 @@ rt_err_t rt_device_open(rt_device_t dev, rt_uint16_t oflag)
{
result = dev->open(dev, oflag);
}
else
{
/* set open flag */
dev->open_flag = (oflag & RT_DEVICE_OFLAG_MASK);
}
/* set open flag */
if (result == RT_EOK || result == -RT_ENOSYS)
{
dev->open_flag = oflag | RT_DEVICE_OFLAG_OPEN;
dev->open_flag |= RT_DEVICE_OFLAG_OPEN;
dev->ref_count++;
/* don't let bad things happen silently. If you are bitten by this assert,
@@ -349,7 +359,7 @@ RTM_EXPORT(rt_device_write);
*
* @return the result
*/
rt_err_t rt_device_control(rt_device_t dev, rt_uint8_t cmd, void *arg)
rt_err_t rt_device_control(rt_device_t dev, int cmd, void *arg)
{
RT_ASSERT(dev != RT_NULL);
@@ -359,7 +369,7 @@ rt_err_t rt_device_control(rt_device_t dev, rt_uint8_t cmd, void *arg)
return dev->control(dev, cmd, arg);
}
return RT_EOK;
return -RT_ENOSYS;
}
RTM_EXPORT(rt_device_control);