eb001/tb/sw/src/halfLvdsMacSvr.c

#include "system_cfg.h"
#include "sysDef.h"
#include "tl2cdr.h"
#include "halfLvdsMacSvr.h"
#include "plic.h"

//-------------------------------------------------------------------
uint8_t MST_TX_BUF[TX_BUF_NUM * TX_BUF_MAX_LEN] __attribute__((aligned(32)));
uint8_t MST_RX_BUF[RX_BUF_NUM * RX_BUF_MAX_LEN] __attribute__((aligned(32)));


//-------------------------------------------------------------------
extern const uint8_t int_svr_code[];
uint32_t (*sys_call)(uint32_t no, ...);

/*
#define CDR_INT_TX0END          14U
#define CDR_INT_TX1END          15U
#define CDR_INT_RX0ERROR        16U
#define CDR_INT_RX1ERROR        17U
#define CDR_INT_RX0START        18U
#define CDR_INT_RX1START        19U
#define CDR_INT_RX0END          20U
#define CDR_INT_RX1END          21U
#define CDR_INT_TX0_FIFO_DEQ    22U
#define CDR_INT_TX1_FIFO_DEQ    23U
#define CDR_INT_RX0_FIFO_ENQ    24U
#define CDR_INT_RX1_FIFO_ENQ    25U
*/
volatile uint32_t isr_flag[32] = {0};
uint32_t HLM_poll(uint32_t mode)
{
	sys_call = (void *)int_svr_code;
	//复位脉冲
	*tx0_softReset = 1;
	*tx1_softReset = 1;
	*rx0_softReset = 1;
	*rx1_softReset = 1;


	if (mode == WORKMODE_MASTER)
	{
		uint32_t tx_pkt_len = 256;
		uint32_t rx_pkt_len = 0;
		uint32_t rx_start = 0;
		uint32_t status;

		uint32_t i;
		uint32_t *tx_data_ptr = (uint32_t *)MST_TX_BUF;
		uint32_t *rx_data_ptr = (uint32_t *)MST_RX_BUF;


		//准备数据
		for (i = 0; i < tx_pkt_len; i++)
			MST_TX_BUF[i] = i;

		
        //开始发送工作
        *tx0_txLen = tx_pkt_len + 4;
		*tx0_txFifo = (tx_pkt_len << 20) | 0;
		
		uint32_t tx_index = 0;
		uint32_t rx_index = 0;

		for (i = 0; i < HLM_TX_FIFO_LEN - 1; i++)
		{
			if ((tx_index * 4) < tx_pkt_len)
			{
				*tx0_txFifo = tx_data_ptr[tx_index];
				tx_index++;
			}
			else
				break;
		}

		while (1)
		{
			status = *HLM_status;

			for (i = 0; i < HLM_TX_FIFO_LEN - HLM_TX0_FIFO_LEFT(status); i++)
			{
				if ((tx_index * 4) < tx_pkt_len)
				{
					*tx0_txFifo = tx_data_ptr[tx_index];
					tx_index++;
				}
				else
					break;
			}

			for (i = 0; i < HLM_RX1_FIFO_LEFT(status); i++)
			{
				//if ((rx_start) && (status & HLM_RX1_VALID))
				if (rx_start)
				{
					rx_data_ptr[rx_index] = *rx1_rxFifo;
					if (rx_index == 0)
						rx_pkt_len = (rx_data_ptr[rx_index] >> 20) + 4;

					rx_index++;
					
					if (rx_pkt_len <= (rx_index * 4))
					{
						rx_start = 0;
						rx_index = 0;
						break;
					}
				}
			}

			if (isr_flag[CDR_INT_RX1START])
			{
				isr_flag[CDR_INT_RX1START] = 0;
				rx_start = 1;
				rx_index = 0;
			}
		}
	}
	else if (mode == WORKMODE_SLAVE)
	{
		uint32_t rx_index = 0;
		uint32_t tx_pkt_len;
		uint32_t rx_pkt_len = 0;
		uint32_t rx_start = 0;
		uint32_t status;
		
		*rx0_rxTxPair = 1;
		*rx0_rxTimerAim = 0; //240;
		*rx1_rxTxPair = 0;
		*rx1_rxTimerAim = 0;
		*plic_enable_0_31 = 0;

		#ifdef __riscv_e
		sys_call(SYS_SLAVE_WORK);
		
		#else
		while(1)
		{
			status = *HLM_status;
			if (status & HLM_RX0_VALID)
			{
				rx_start = 1;
				break;
			}
		}

		while (1)
		{
			status = *HLM_status;

			if (rx_start && (status & HLM_RX0_VALID))
			{
				uint32_t data;
				data = *rx0_rxFifo;
				if (rx_index == 0)
				{
					rx_pkt_len = (data >> 20) + 4;
					*tx1_txLen = rx_pkt_len;
				}

				rx_index++;
				*tx1_txFifo = data;
				if (rx_pkt_len <= (rx_index * 4))
				{
					rx_start = 0;
					break;
				}
			}
		}
		#endif
	}
	else
	{

	}
}