void i2s_unmask_handler(u32 dma_ch) { MSG("i2s_unmask_handler ch=%d\n",dma_ch); if((dma_ch==GDMA_I2S_TX0)&&(pi2s_config->bTxDMAEnable)) { GdmaI2sTx((u32)pi2s_config->pPage0TxBuf8ptr, I2S_FIFO_WREG, 0, I2S_PAGE_SIZE, i2s_dma_tx_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_TX0); } if((dma_ch==GDMA_I2S_TX1)&&(pi2s_config->bTxDMAEnable)) { GdmaI2sTx((u32)pi2s_config->pPage1TxBuf8ptr, I2S_FIFO_WREG, 1, I2S_PAGE_SIZE, i2s_dma_tx_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_TX1); } #if defined(CONFIG_I2S_TXRX) if((dma_ch==GDMA_I2S_RX0)&&(pi2s_config->bRxDMAEnable)) { GdmaI2sRx(I2S_RX_FIFO_RREG, (u32)pi2s_config->pPage0RxBuf8ptr, 0, I2S_PAGE_SIZE, i2s_dma_rx_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_RX0); } if((dma_ch==GDMA_I2S_RX1)&&(pi2s_config->bRxDMAEnable)) { GdmaI2sRx(I2S_RX_FIFO_RREG, (u32)pi2s_config->pPage1RxBuf8ptr, 1, I2S_PAGE_SIZE, i2s_dma_rx_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_RX1); } #endif }
void i2s_unmask_handler(u32 dma_ch) { MSG("i2s_unmask_handler ch=%d\n",dma_ch); if(dma_ch==GDMA_I2S_TX1) { GdmaI2sTx(pi2s_config->page0buf8ptr, I2S_FIFO_WREG, 0, I2S_PAGE_SIZE, i2s_dma_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_TX0); } else { GdmaI2sTx(pi2s_config->page1buf8ptr, I2S_FIFO_WREG, 1, I2S_PAGE_SIZE, i2s_dma_handler, i2s_unmask_handler); GdmaUnMaskChannel(GDMA_I2S_TX1); } }
int chain_mode(void *unused) { int i=0; for(i=0;i< MAX_GDMA_CHANNEL; i++) { GdmaMem2Mem(Src_phy[i], Dst_phy[i], PATTERN_LEN, Done); } GdmaUnMaskChannel(0); //kick of channel 0 #if LINUX_VERSION_CODE > KERNEL_VERSION(3,10,0) while(1) { mdelay(1000); } #endif return 1; }
void Done(uint32_t Ch) { int i=0; static int count[MAX_GDMA_CHANNEL]; if((++count[Ch] % SHOW_INTERVAL)==0) { printk("Ch=%d is still alive\n", Ch); } for(i=0;i<PATTERN_LEN;i++) { if(Dst[Ch][i]!=Src[Ch][i]) { printk("***********<<WARNNING!!!>>*********\n"); printk("Ch=%d Check fail (Dst=%x Src=%x)\n",Ch, Dst[Ch][i], Src[Ch][i]); printk("***********************************\n"); return; } } DoneBit[Ch]=1; //clear content of destination address memset(Dst[Ch], 0, PATTERN_LEN); #if defined (CHAIN) //set up related fields for next transaction GdmaMem2Mem(Src_phy[Ch], Dst_phy[Ch], PATTERN_LEN, Done); /*If channel is MAX_GDMA_CHANNEL-1, *it means channel 0 - channal (MAX_GDMA_CHANNEL-1) is ready *just kill off channel 0 to start next chain-based transaction. */ if(Ch == (MAX_GDMA_CHANNEL-1)) { GdmaUnMaskChannel(0); } #elif defined (CONCURRENT) //set up related fields for next transaction GdmaMem2Mem(Src_phy[Ch], Dst_phy[Ch], PATTERN_LEN, Done); #endif }
int i2s_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) #endif { int i ; unsigned long flags, data; i2s_config_type* ptri2s_config; ptri2s_config = filp->private_data; switch (cmd) { case I2S_SRATE: spin_lock_irqsave(&ptri2s_config->lock, flags); { data = *(unsigned long*)(RALINK_SYSCTL_BASE+0x834); data |=(1<<17); *(unsigned long*)(RALINK_SYSCTL_BASE+0x834) = data; data = *(unsigned long*)(RALINK_SYSCTL_BASE+0x834); data &=~(1<<17); *(unsigned long*)(RALINK_SYSCTL_BASE+0x834) = data; audiohw_preinit(); } if((arg>MAX_SRATE_HZ)||(arg<MIN_SRATE_HZ)) { MSG("audio sampling rate %u should be %d ~ %d Hz\n", (u32)arg, MIN_SRATE_HZ, MAX_SRATE_HZ); break; } ptri2s_config->srate = arg; MSG("set audio sampling rate to %d Hz\n", ptri2s_config->srate); spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_TX_VOL: spin_lock_irqsave(&ptri2s_config->lock, flags); if((int)arg > 127) { ptri2s_config->txvol = 127; } else if((int)arg < 96) { ptri2s_config->txvol = 96; } else ptri2s_config->txvol = arg; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_RX_VOL: spin_lock_irqsave(&ptri2s_config->lock, flags); if((int)arg > 63) { ptri2s_config->rxvol = 63; } else if((int)arg < 0) { ptri2s_config->rxvol = 0; } else ptri2s_config->rxvol = arg; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_TX_ENABLE: spin_lock_irqsave(&ptri2s_config->lock, flags); MSG("I2S_TXENABLE\n"); /* allocate tx buffer */ ptri2s_config->pPage0TxBuf8ptr = (u8*)pci_alloc_consistent(NULL, I2S_PAGE_SIZE*2 , &i2s_txdma_addr); if(ptri2s_config->pPage0TxBuf8ptr==NULL) { MSG("Allocate Tx Page Buffer Failed\n"); return -1; } ptri2s_config->pPage1TxBuf8ptr = ptri2s_config->pPage0TxBuf8ptr + I2S_PAGE_SIZE; for( i = 0 ; i < MAX_I2S_PAGE ; i ++ ) { #if defined(CONFIG_I2S_MMAP) ptri2s_config->pMMAPTxBufPtr[i] = ptri2s_config->pMMAPBufPtr[i]; #else if(ptri2s_config->pMMAPTxBufPtr[i]==NULL) ptri2s_config->pMMAPTxBufPtr[i] = kmalloc(I2S_PAGE_SIZE, GFP_KERNEL); #endif } #if defined(I2S_FIFO_MODE) #else GdmaI2sTx((u32)ptri2s_config->pPage0TxBuf8ptr, I2S_FIFO_WREG, 0, I2S_PAGE_SIZE, i2s_dma_tx_handler, i2s_unmask_handler); GdmaI2sTx((u32)ptri2s_config->pPage1TxBuf8ptr, I2S_FIFO_WREG, 1, I2S_PAGE_SIZE, i2s_dma_tx_handler, i2s_unmask_handler); #endif i2s_reset_tx_config(ptri2s_config); ptri2s_config->bTxDMAEnable = 1; i2s_tx_config(ptri2s_config); if(ptri2s_config->bRxDMAEnable==0) i2s_clock_enable(ptri2s_config); audiohw_set_lineout_vol(1, ptri2s_config->txvol, ptri2s_config->txvol); i2s_tx_enable(ptri2s_config); #if defined(I2S_FIFO_MODE) #else GdmaUnMaskChannel(GDMA_I2S_TX0); #endif data = i2s_inw(RALINK_REG_INTENA); data |=0x0400; i2s_outw(RALINK_REG_INTENA, data); MSG("I2S_TXENABLE done\n"); spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_TX_DISABLE: spin_lock_irqsave(&ptri2s_config->lock, flags); MSG("I2S_TXDISABLE\n"); i2s_tx_disable(ptri2s_config); i2s_reset_tx_config(ptri2s_config); if(ptri2s_config->bRxDMAEnable==0) i2s_clock_disable(ptri2s_config); //i2s_tx_disable(ptri2s_config); if(ptri2s_config->bRxDMAEnable==0) { data = i2s_inw(RALINK_REG_INTENA); data &= 0xFFFFFBFF; i2s_outw(RALINK_REG_INTENA, data); } for( i = 0 ; i < MAX_I2S_PAGE ; i ++ ) { if(ptri2s_config->pMMAPTxBufPtr[i] != NULL) { #if defined(CONFIG_I2S_MMAP) dma_unmap_single(NULL, i2s_mmap_addr[i], I2S_PAGE_SIZE, DMA_TO_DEVICE); #endif kfree(ptri2s_config->pMMAPTxBufPtr[i]); ptri2s_config->pMMAPTxBufPtr[i] = NULL; } } pci_free_consistent(NULL, I2S_PAGE_SIZE*2, ptri2s_config->pPage0TxBuf8ptr, i2s_txdma_addr); ptri2s_config->pPage0TxBuf8ptr = NULL; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_RX_ENABLE: spin_lock_irqsave(&ptri2s_config->lock, flags); MSG("I2S_RXENABLE\n"); /* allocate rx buffer */ ptri2s_config->pPage0RxBuf8ptr = (u8*)pci_alloc_consistent(NULL, I2S_PAGE_SIZE*2 , &i2s_rxdma_addr); if(ptri2s_config->pPage0RxBuf8ptr==NULL) { MSG("Allocate Rx Page Buffer Failed\n"); return -1; } ptri2s_config->pPage1RxBuf8ptr = ptri2s_config->pPage0RxBuf8ptr + I2S_PAGE_SIZE; for( i = 0 ; i < MAX_I2S_PAGE ; i ++ ) { if(ptri2s_config->pMMAPRxBufPtr[i]==NULL) ptri2s_config->pMMAPRxBufPtr[i] = kmalloc(I2S_PAGE_SIZE, GFP_KERNEL); } #if defined(I2S_FIFO_MODE) #else GdmaI2sRx(I2S_RX_FIFO_RREG, (u32)ptri2s_config->pPage0RxBuf8ptr, 0, I2S_PAGE_SIZE, i2s_dma_rx_handler, i2s_unmask_handler); GdmaI2sRx(I2S_RX_FIFO_RREG, (u32)ptri2s_config->pPage1RxBuf8ptr, 1, I2S_PAGE_SIZE, i2s_dma_rx_handler, i2s_unmask_handler); #endif i2s_reset_rx_config(ptri2s_config); ptri2s_config->bRxDMAEnable = 1; i2s_rx_config(ptri2s_config); #if defined(I2S_FIFO_MODE) #else GdmaUnMaskChannel(GDMA_I2S_RX0); #endif if(ptri2s_config->bTxDMAEnable==0) i2s_clock_enable(ptri2s_config); #if defined(CONFIG_I2S_TXRX) audiohw_set_linein_vol(ptri2s_config->rxvol, ptri2s_config->rxvol); #endif i2s_rx_enable(ptri2s_config); data = i2s_inw(RALINK_REG_INTENA); data |=0x0400; i2s_outw(RALINK_REG_INTENA, data); spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_RX_DISABLE: spin_lock_irqsave(&ptri2s_config->lock, flags); MSG("I2S_RXDISABLE\n"); i2s_reset_rx_config(ptri2s_config); if(ptri2s_config->bTxDMAEnable==0) i2s_clock_disable(ptri2s_config); i2s_rx_disable(ptri2s_config); if(ptri2s_config->bRxDMAEnable==0) { data = i2s_inw(RALINK_REG_INTENA); data &= 0xFFFFFBFF; i2s_outw(RALINK_REG_INTENA, data); } for( i = 0 ; i < MAX_I2S_PAGE ; i ++ ) { if(ptri2s_config->pMMAPRxBufPtr[i] != NULL) kfree(ptri2s_config->pMMAPRxBufPtr[i]); ptri2s_config->pMMAPRxBufPtr[i] = NULL; } pci_free_consistent(NULL, I2S_PAGE_SIZE*2, ptri2s_config->pPage0RxBuf8ptr, i2s_rxdma_addr); ptri2s_config->pPage0RxBuf8ptr = NULL; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; case I2S_PUT_AUDIO: //MSG("I2S_PUT_AUDIO\n"); #if defined(I2S_FIFO_MODE) { long* pData ; //MSG("I2S_PUT_AUDIO FIFO\n"); copy_from_user(ptri2s_config->pMMAPTxBufPtr[0], (char*)arg, I2S_PAGE_SIZE); pData = ptri2s_config->pMMAPTxBufPtr[0]; for(i = 0 ; i < I2S_PAGE_SIZE>>2 ; i++ ) { int j; unsigned long status = i2s_inw(I2S_FF_STATUS); while((status&0x0F)==0) { for(j = 0 ; j < 50 ; j++); status = i2s_inw(I2S_FF_STATUS); } *((volatile uint32_t *)(I2S_TX_FIFO_WREG)) = cpu_to_le32(*pData); if(i==16) MSG("I2S_PUT_AUDIO FIFO[0x%08X]\n", *pData); pData++; } } break; #else do{ spin_lock_irqsave(&ptri2s_config->lock, flags); if(((ptri2s_config->tx_w_idx+4)%MAX_I2S_PAGE)!=ptri2s_config->tx_r_idx) { ptri2s_config->tx_w_idx = (ptri2s_config->tx_w_idx+1)%MAX_I2S_PAGE; //printk("put TB[%d] for user write\n",ptri2s_config->tx_w_idx); #if defined(CONFIG_I2S_MMAP) put_user(ptri2s_config->tx_w_idx, (int*)arg); #else copy_from_user(ptri2s_config->pMMAPTxBufPtr[ptri2s_config->tx_w_idx], (char*)arg, I2S_PAGE_SIZE); #endif pi2s_status->txbuffer_len++; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; } else { /* Buffer Full */ //printk("TBF tr=%d, tw=%d\n", ptri2s_config->tx_r_idx, ptri2s_config->tx_w_idx); pi2s_status->txbuffer_ovrun++; spin_unlock_irqrestore(&ptri2s_config->lock, flags); interruptible_sleep_on(&(ptri2s_config->i2s_tx_qh)); } }while(1); break; #endif case I2S_GET_AUDIO: #if defined(I2S_FIFO_MODE) { long* pData ; pData = ptri2s_config->pMMAPRxBufPtr[0]; for(i = 0 ; i < I2S_PAGE_SIZE>>2 ; i++ ) { int j; unsigned long status = i2s_inw(I2S_FF_STATUS); while((status&0x0F0)==0) { for(j = 0 ; j < 50 ; j++); status = i2s_inw(I2S_FF_STATUS); } *pData = i2s_inw(I2S_RX_FIFO_RREG); if(i==16) MSG("I2S_GET_AUDIO FIFO[0x%08X]\n", *pData); pData++; } copy_to_user((char*)arg, ptri2s_config->pMMAPRxBufPtr[0], I2S_PAGE_SIZE); } break; #else do{ spin_lock_irqsave(&ptri2s_config->lock, flags); if(ptri2s_config->rx_r_idx!=ptri2s_config->rx_w_idx) { copy_to_user((char*)arg, ptri2s_config->pMMAPRxBufPtr[ptri2s_config->rx_r_idx], I2S_PAGE_SIZE); ptri2s_config->rx_r_idx = (ptri2s_config->rx_r_idx+1)%MAX_I2S_PAGE; pi2s_status->rxbuffer_len--; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; } else { /* Buffer Full */ //printk("RBF rr=%d, rw=%d\n", ptri2s_config->rx_r_idx, ptri2s_config->rx_w_idx); pi2s_status->rxbuffer_ovrun++; spin_unlock_irqrestore(&ptri2s_config->lock, flags); interruptible_sleep_on(&(ptri2s_config->i2s_rx_qh)); } }while(1); break; #endif case I2S_DEBUG_CLKGEN: case I2S_DEBUG_INLBK: case I2S_DEBUG_EXLBK: case I2S_DEBUG_CODECBYPASS: case I2S_DEBUG_FMT: case I2S_DEBUG_RESET: i2s_debug_cmd(cmd, arg); break; default : MSG("i2s_ioctl: command format error\n"); } return 0; }
int i2s_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { int x; unsigned long flags, data; i2s_config_type* ptri2s_config; ptri2s_config = filp->private_data; switch (cmd) { case I2S_SRATE: if((arg>MAX_SRATE_HZ)||(arg<MIN_SRATE_HZ)) { MSG("audio sampling rate %d should be %d ~ %d Hz\n", arg, MIN_SRATE_HZ, MAX_SRATE_HZ); break; } ptri2s_config->srate = arg; MSG("set audio sampling rate to %d Hz\n", ptri2s_config->srate); break; case I2S_VOL: if(((int)arg>MAX_VOL_DB)||((int)arg<MIN_VOL_DB)) { MSG("audio volumn %d should be %d ~ %d dB\n", arg, MIN_VOL_DB, MAX_VOL_DB); break; } ptri2s_config->vol = arg; x = 2*arg+255; audiohw_set_master_vol(x, x); MSG("set audio volumn to %d dB\n", ptri2s_config->vol); break; case I2S_ENABLE: ptri2s_config->isr_cnt = 0; pi2s_status->buffer_unrun = 0; pi2s_status->buffer_ovrun = 0; pi2s_status->txdmafault = 0; pi2s_status->ovrun = 0; pi2s_status->unrun = 0; pi2s_status->thres = 0; pi2s_status->buffer_len = 0; data = i2s_inw(RALINK_REG_INTENA); //data |=0x0400; data &=0xFFBFF; i2s_outw(RALINK_REG_INTENA, data); MSG("i2s audio enable\n"); if(i2s_dev_open(ptri2s_config)!=I2S_OK) { i2s_release(inode, filp); return -1; } wake_up_interruptible(&(ptri2s_config->i2s_qh)); break; case I2S_DISABLE: MSG("i2s audio disable\n"); data = i2s_inw(RALINK_REG_INTENA); data &= 0xFFFFFBFF; i2s_outw(RALINK_REG_INTENA, data); ptri2s_config->bDMAStart = 0; i2s_dev_close(ptri2s_config); wake_up_interruptible(&(ptri2s_config->i2s_qh)); break; case I2S_GET_WBUF: #ifdef I2S_FIFO_MODE { int i,j; long* pBufPtr = pi2s_config->pMMAPBufPtr+(pi2s_config->w_idx)*I2S_PAGE_SIZE; for(i=0; i<I2S_PAGE_SIZE>>2; i++) { long status; i2s_outw(I2S_FIFO_WREG, bswap_32(pBufPtr[i])); while(1) { status = i2s_inw(I2S_FF_STATUS); if(status&0x00F!=0) break; } } ptri2s_config->w_idx = (ptri2s_config->w_idx+1)%MAX_I2S_PAGE; (int)(*(int*)arg) = (int)ptri2s_config->w_idx; break; } #endif if(ptri2s_config->bDMAStart==0) { GdmaI2sTx(ptri2s_config->page0buf8ptr, I2S_FIFO_WREG, 0, I2S_PAGE_SIZE, i2s_dma_handler, i2s_unmask_handler); GdmaI2sTx(ptri2s_config->page1buf8ptr, I2S_FIFO_WREG, 1, I2S_PAGE_SIZE, i2s_dma_handler, i2s_unmask_handler); ptri2s_config->bDMAStart=1; GdmaUnMaskChannel(GDMA_I2S_TX0); } do{ spin_lock_irqsave(&ptri2s_config->lock, flags); if(((ptri2s_config->w_idx+1)%MAX_I2S_PAGE)!=ptri2s_config->r_idx) { ptri2s_config->w_idx = (ptri2s_config->w_idx+1)%MAX_I2S_PAGE; (int)(*(int*)arg) = (int)ptri2s_config->w_idx; pi2s_status->buffer_len++; spin_unlock_irqrestore(&ptri2s_config->lock, flags); break; } else { /* Buffer Full */ //printk("BF w=%d, r=%d\n", ptri2s_config->w_idx, ptri2s_config->r_idx); pi2s_status->buffer_ovrun++; ptri2s_config->bSleep = 1; spin_unlock_irqrestore(&ptri2s_config->lock, flags); interruptible_sleep_on(&(ptri2s_config->i2s_qh)); } }while(1); break; default : MSG("i2s_ioctl: command format error\n"); } return 0; }