void zion_audio_proc_event(zion_params_t *zion_params, int bit, int irq, void *dev_id, u16 pci_status) { u16 int_status_12; u16 int_status_34; /* Read Interrupt Status */ int_status_12 = mbus_readw(MBUS_ADDR(zion_params, DMA12_Interrupt_Status)); int_status_34 = mbus_readw(MBUS_ADDR(zion_params, DMA34_Interrupt_Status)); /* Memorize it ! */ zion_params->interrupt_bits.AUDIO_INT[0] |= int_status_12; zion_params->interrupt_bits.AUDIO_INT[1] |= int_status_34; /* Do Nothing Now... */ /* Clear them */ if(int_status_12) { mbus_writew(int_status_12, MBUS_ADDR(zion_params, DMA12_Interrupt_Clear)); } if(int_status_34) { mbus_writew(int_status_34, MBUS_ADDR(zion_params, DMA34_Interrupt_Clear)); } zion_mbus_int_clear(zion_params, AudioProc_Int); return; }
/*************************************************************************** * zion_dmaif_event * @func * Interruption handler for EDMA * @args * zion_params_t *params [in/out]: parameters of ZION driver * int irq [in] : IRQ number * void *dev_id [in] : Device ID * u16 pci_status[in] : PCI config interrupt status * @return * void * @comment * * @author * H. Hoshino **************************************************************************/ void zion_dmaif_event(zion_params_t * params, int bit, int irq, void *dev_id, u16 pci_status) { unsigned short int_status = 0; unsigned short int_mask = 0; int ch = 0; zion_edma_params_t *edma_prms = NULL; /*** Check EDMA interruption for each channel ***/ for (ch = 0; ch < ZION_EDMA_NR_CH; ++ch) { /* Get interrupt status and mask(enable) */ int_status = (unsigned short)mbus_readw( MBUS_ADDR(params, ZION_MBUS_EDMA_INTSTTS(ch)) ); int_mask = (unsigned short)mbus_readw( MBUS_ADDR(params, ZION_MBUS_EDMA_INTENB(ch)) ); /* Memorize it ! */ params->interrupt_bits.DMA_INT[ch] |= int_status; /* for DEBUG */ /* PDEBUG( "CH%d int_status: 0x%04X, mask: 0x%04X\n", */ /* ch, int_status, int_mask ); */ /** Check interruptions (Common port) **/ if ( int_status & int_mask ) { /* Get EDMA params */ edma_prms = &(ZION_DMAIF_PARAM(params)->port_params[ZION_EDMA_CMN_PORTNO(ch)]); /* for DEBUG */ /* PDEBUG( "[CH%d port%d] Get interruptions!\n", */ /* ch, ZION_EDMA_CMN_PORTNO(ch) ); */ if ( NULL == edma_prms ) { PERROR( "[CH%d port%d] EDMA params is NULL!!\n", ch, ZION_EDMA_CMN_PORTNO(ch) ); mbus_writew( (ZION_MBUS_EDMA_DMADONEINT | ZION_MBUS_EDMA_SYNCFRMINT | ZION_MBUS_EDMA_BUFFINT_MASK | ZION_MBUS_EDMA_ERRINT_MASK), MBUS_ADDR(params, ZION_MBUS_EDMA_INTCLR(ch))); /** Clear interrupt status INT B reg **/ zion_mbus_int_clear(params, Dmaif_Int); return; } /* Set interrupt status */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ edma_prms->int_status |= int_status; /* edma_prms->int_status = int_status; */ spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ /* Wake up */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ edma_prms->condition = ZION_DMAIF_DISPATCH_DONE; spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ wake_up(&(edma_prms->zion_dmaif_wait_queue)); } /** Check sync frame pulse interruption **/ if ( int_status & int_mask & ZION_MBUS_EDMA_SYNCFRMINT ) { /* Get EDMA params */ edma_prms = &(ZION_DMAIF_PARAM(params)->port_params[ZION_EDMA_FRM_PORTNO(ch)]); /* for DEBUG */ /* PDEBUG( "[CH%d port%d] Sync frame pulse!\n", */ /* ch, ZION_EDMA_FRM_PORTNO(ch) ); */ /* Set interrupt status */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ if ( 0 == edma_prms->int_status ) { edma_prms->int_status = int_status; } else { /* PDEBUG( "[CH%d port%d] int_status is already set(0x%04X, 0x%04X)!\n", */ /* ch, ZION_EDMA_DMA_PORTNO(ch), edma_prms->int_status, int_status ); */ } spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ /* Clear interrupt status: sync frame pulse */ mbus_writew(ZION_MBUS_EDMA_SYNCFRMINT, MBUS_ADDR(params, ZION_MBUS_EDMA_INTCLR(ch))); /* Wake up */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ edma_prms->condition = ZION_DMAIF_DISPATCH_DONE; spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ wake_up(&(edma_prms->zion_dmaif_wait_queue)); } /** Check DMA done interruption **/ if ( int_status & int_mask & ZION_MBUS_EDMA_DMADONEINT ) { /* Get EDMA params */ edma_prms = &(ZION_DMAIF_PARAM(params)->port_params[ZION_EDMA_DMA_PORTNO(ch)]); /* for DEBUG */ PDEBUG( "[CH%d port%d] DMA Done!\n", ch, ZION_EDMA_DMA_PORTNO(ch) ); /* PINFO( "[CH%d port%d] DMA Done!\n", */ /* ch, ZION_EDMA_DMA_PORTNO(ch) ); */ /* Stop DMA for G1&G2 transfer mode */ { unsigned char cmd = mbus_readb( MBUS_ADDR(params, (ZION_MBUS_EDMA_DMACMD(ch)+1)) ); mbus_writeb( (cmd & (~0x02)), MBUS_ADDR(params, (ZION_MBUS_EDMA_DMACMD(ch)+1)) ); } /* for DEBUG XXX*/ /* { */ /* unsigned short usPMT = mbus_readw( MBUS_ADDR(params, ZION_MBUS_EDMA_CURRPMT(ch)) ); */ /* PDEBUG( "[CH%d port%d] CurrPMT: 0x%04X\n", */ /* ch, ZION_EDMA_DMA_PORTNO(ch), usPMT ); */ /* } */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ /* Set interrupt status */ /* PDEBUG( "[CH%d] int_status: 0x%04X, old: 0x%04X!\n", */ /* ch, int_status, edma_prms->int_status ); */ if ( 0 == edma_prms->int_status ) { edma_prms->int_status = int_status; } else { /* PDEBUG( "[CH%d port%d] int_status is already set(0x%04X, 0x%04X)!\n", */ /* ch, ZION_EDMA_DMA_PORTNO(ch), edma_prms->int_status, int_status ); */ } /* Delete timer */ del_timer_sync(&(edma_prms->timer)); spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ /* Clear interrupt status: DMA done */ mbus_writew(ZION_MBUS_EDMA_DMADONEINT, MBUS_ADDR(params, ZION_MBUS_EDMA_INTCLR(ch))); /* Wake up */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ edma_prms->condition = ZION_DMAIF_DISPATCH_DONE; spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ wake_up(&(edma_prms->zion_dmaif_wait_queue)); } /** Check error and buffer empty/almost empty/almost full/full interruption **/ if ( int_status & int_mask & (ZION_MBUS_EDMA_BUFFINT_MASK | ZION_MBUS_EDMA_ERRINT_MASK) ) { /* Get EDMA parameters */ edma_prms = &(ZION_DMAIF_PARAM (params)->port_params[ZION_EDMA_BUF_PORTNO(ch)]); /* for DEBUG */ PDEBUG( "[CH%d port%d] Error or warning!\n", ch, ZION_EDMA_BUF_PORTNO(ch) ); /* Set interrupt status */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ /* PDEBUG( "[CH%d] int_status: 0x%04X, old: 0x%04X!\n", */ /* ch, int_status, edma_prms->int_status ); */ if ( 0 == edma_prms->int_status ) { edma_prms->int_status = int_status; } else { /* PDEBUG( "[CH%d port%d] int_status is already set(0x%04X, 0x%04X)!\n", */ /* ch, ZION_EDMA_BUF_PORTNO(ch), edma_prms->int_status, int_status ); */ } spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ /* Clear interrupt status */ mbus_writew((ZION_MBUS_EDMA_BUFFINT_MASK | ZION_MBUS_EDMA_ERRINT_MASK), MBUS_ADDR(params, ZION_MBUS_EDMA_INTCLR(ch))); /* Wake up */ spin_lock( &(edma_prms->params_lock) ); /* Spin lock */ edma_prms->condition = ZION_DMAIF_DISPATCH_DONE; spin_unlock( &(edma_prms->params_lock) ); /* Unlock spin lock */ wake_up(&(edma_prms->zion_dmaif_wait_queue)); } } /* The end of FOR(ch) */ /** Clear interrupt status INT B reg **/ zion_mbus_int_clear(params, Dmaif_Int); /* PDEBUG ("exit %s\n", __FUNCTION__); */ return; }