update dm9000a driver
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@195 bbd45198-f89e-11dd-88c7-29a3b14d5316
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@ -175,12 +175,11 @@ void rt_dm9000_isr()
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/* Received the coming packet */
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if (int_status & ISR_PRS)
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{
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rt_err_t result;
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/* disable receive interrupt */
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dm9000_device.imr_all = IMR_PAR | IMR_PTM;
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/* a frame has been received */
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result = eth_device_ready(&(dm9000_device.parent));
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if (result != RT_EOK) rt_kprintf("eth notification failed\n");
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RT_ASSERT(result == RT_EOK);
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eth_device_ready(&(dm9000_device.parent));
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}
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/* Transmit Interrupt check */
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@ -459,7 +458,7 @@ struct pbuf *rt_dm9000_rx(rt_device_t dev)
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rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
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/* Check packet ready or not */
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dm9000_io_read(DM9000_MRCMDX); /* Dummy read */
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dm9000_io_read(DM9000_MRCMDX); /* Dummy read */
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rxbyte = DM9000_inb(DM9000_DATA_BASE); /* Got most updated data */
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if (rxbyte)
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{
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@ -560,8 +559,9 @@ struct pbuf *rt_dm9000_rx(rt_device_t dev)
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}
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else
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{
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/* restore interrupt */
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// dm9000_io_write(DM9000_IMR, dm9000_device.imr_all);
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/* restore receive interrupt */
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dm9000_device.imr_all = IMR_PAR | IMR_PTM | IMR_PRM;
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dm9000_io_write(DM9000_IMR, dm9000_device.imr_all);
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}
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/* unlock DM9000 device */
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