/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
int sunxi_codec_wink(void *buffer, uint length)
{
#if 0
if(!hdma)
{
printf("sunxi codec error : cant stop without dma\n");
return -1;
}
sunxi_dma_stop(hdma);
flush_cache((uint)buffer, length);
sunxi_dma_start(hdma, (uint)buffer, (uint)(&sunxi_codec->dac_txdata), length);
#endif
return 0;
}
int emacrx_dma_inblk(dma_addr_t buff_addr, __u32 len)
{
int ret;
#if defined CONFIG_ARCH_SUN4I || defined CONFIG_ARCH_SUN5I
struct dma_hw_conf emac_hwconf = {
.xfer_type = DMAXFER_D_SWORD_S_SWORD,
.hf_irq = SW_DMA_IRQ_FULL,
.cmbk = 0x03030303,
.dir = SW_DMA_RDEV,
.from = emacrx_dma.dma_addr,
.address_type = DMAADDRT_D_LN_S_IO,
.drqsrc_type = DRQ_TYPE_EMAC
};
ret = sw_dma_setflags(emacrx_dma.channel, SW_DMAF_AUTOSTART);
if (ret != 0)
return ret;
#else
dma_config_t emac_hwconf = {
.xfer_type = {
.src_data_width = DATA_WIDTH_32BIT,
.src_bst_len = DATA_BRST_4,
.dst_data_width = DATA_WIDTH_32BIT,
.dst_bst_len = DATA_BRST_4
},
.address_type = {
.src_addr_mode = DDMA_ADDR_IO,
.dst_addr_mode = DDMA_ADDR_LINEAR
},
.bconti_mode = false,
.src_drq_type = D_SRC_EMAC_RX,
.dst_drq_type = D_DST_SRAM,
.irq_spt = CHAN_IRQ_FD
};
#endif
ret = sunxi_dma_config(&emacrx_dma, &emac_hwconf, 0x03030303);
if (ret != 0)
return ret;
ret = sunxi_dma_enqueue(&emacrx_dma, buff_addr, len, 1);
if (ret != 0)
return ret;
ret = sunxi_dma_start(&emacrx_dma);
if (ret != 0)
return ret;
return 0;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
int sunxi_udc_start_recv_by_dma(uint mem_buf, uint length)
{
uint old_ep_idx;
uint fifo;
old_ep_idx = USBC_GetActiveEp(sunxi_udc_source.usbc_hd);
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX); //选择当前EP
//usb控制器选择dma传输方式
USBC_Dev_ConfigEpDma(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX);
//选择buffer
fifo = USBC_SelectFIFO(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX);
//刷掉cache
flush_cache(mem_buf, length);
//使能dma传输
sunxi_ubuf.request_size = length;
sunxi_usb_dbg("dma start\n");
sunxi_dma_start(sunxi_udc_source.dma_recv_channal, fifo, mem_buf, length);
//恢复EP
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, old_ep_idx); //恢复原有EP
return 0;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
int sunxi_codec_start(void *buffer, uint length, uint loop_mode)
{
#if 0
sunxi_dma_setting_t dma_cfg;
if(!hdma)
{
hdma = sunxi_dma_request(0);
if(!hdma)
{
printf("sunxi codec error : request dma failed\n");
return -1;
}
}
dma_cfg.cfg.src_drq_type = DMAC_CFG_DEST_TYPE_DRAM;
dma_cfg.cfg.src_addr_mode = 0; //源端地址线性递增
dma_cfg.cfg.src_burst_length = 0; //burst = 1
dma_cfg.cfg.src_data_width = 1; //一次传输16bit
dma_cfg.cfg.dst_drq_type = DMAC_CFG_SRC_TYPE_CODEC;
dma_cfg.cfg.dst_addr_mode = 1; //目的端地址不变
dma_cfg.cfg.dst_burst_length = 0; //burst = 1
dma_cfg.cfg.dst_data_width = 1; //一次接收16bit
dma_cfg.loop_mode = loop_mode;
dma_cfg.wait_cyc = 4;
dma_cfg.data_block_size = 1 * 16/8;
dma_cfg.loop_mode = loop_mode;
sunxi_dma_setting(hdma, &dma_cfg);
flush_cache((uint)buffer, length);
sunxi_dma_start(hdma, (uint)buffer, (uint)(&sunxi_codec->dac_txdata), length);
#endif
return 0;
}
