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;
}
