/**
* @fn abe_connect_cbpr_dmareq_port()
*
* Operations : enables the data echange between a DMA and the ABE through the
* CBPr registers of AESS.
*
* Parameters :
* id: port name
* f : desired data format
* d : desired dma_request line (0..7)
* a : returned pointer to the base address of the CBPr register and number of
* samples to exchange during a DMA_request.
*
* @see ABE_API.h
*/
void abe_connect_cbpr_dmareq_port(abe_port_id id, abe_data_format_t *f, abe_uint32 d, abe_dma_t *returned_dma_t)
{
_lock_enter
_log(id_connect_cbpr_dmareq_port,id,f->f,f->samp_format)
abe_port[id] = ((abe_port_t *)abe_port_init)[id];
abe_port[id].format = *f;
abe_port[id].protocol.protocol_switch = DMAREQ_PORT_PROT;
abe_port[id].protocol.p.prot_dmareq.iter = abe_dma_port_iteration(f);
abe_port[id].protocol.p.prot_dmareq.dma_addr = ABE_DMASTATUS_RAW;
abe_port[id].protocol.p.prot_dmareq.dma_data = (1 << d);
abe_port[id].status = RUN_P;
/* load the micro-task parameters */
abe_init_io_tasks(id, &((abe_port [id]).format), &((abe_port [id]).protocol));
/* load the dma_t with physical information from AE memory mapping */
abe_init_dma_t(id, &((abe_port [id]).protocol));
/* load the ATC descriptors - disabled */
abe_init_atc(id);
/* return the dma pointer address */
abe_read_port_address(id, returned_dma_t);
_lock_exit
}
/*
* ABE_HW_CONFIGURATION
*
* Parameter :
*
* Operations :
*
*
* Return value :
*
*/
void abe_hw_configuration()
{
abe_uint32 atc_reg;
abe_port_protocol_t *protocol;
abe_data_format_t format;
/* initializes the ABE ATC descriptors in DMEM - MCPDM_UL */
protocol = &(abe_port[PDM_UL_PORT].protocol); format = abe_port[PDM_UL_PORT].format;
abe_init_atc(PDM_UL_PORT);
abe_init_io_tasks(PDM_UL_PORT, &format, protocol);
/* initializes the ABE ATC descriptors in DMEM - MCPDM_DL */
protocol = &(abe_port[PDM_DL1_PORT].protocol); format = abe_port[PDM_DL1_PORT].format;
abe_init_atc(PDM_DL1_PORT);
abe_init_io_tasks(PDM_DL1_PORT, &format, protocol);
/* one DMIC port enabled = all DMICs enabled, since there is a single DMIC path for all DMICs */
protocol = &(abe_port[DMIC_PORT1].protocol); format = abe_port[DMIC_PORT1].format;
abe_init_atc(DMIC_PORT1);
abe_init_io_tasks(DMIC_PORT1, &format, protocol);
/* enables the DMAreq from AESS AESS_DMAENABLE_SET = 255 */
atc_reg = 0xFF;
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_ATC, 0x60, &atc_reg, 4);
#if 0
/* let the EVENT be configured once the ports are already programmed */
/* enables EVENT_GENERATOR_START=6C from McPDM */
atc_reg = 0x01;
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_ATC, 0x6C, &atc_reg, 4);
// set McPDM_DL as EVENT_SOURCE_SELECTION
event = 0L; // source = DMAreq
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_ATC, 0x70, &event, 4);
event = 2L; // source = MCPDM_DL to AUDIO_ENGINE_SCHEDULER
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_ATC, 0x74, &event, 4);
#endif
}
/*
* ABE_ENABLE_DATA_TRANSFER
*
* Parameter :
* p: port indentifier
*
* Operations :
* enables the ATC descriptor
* reset ATC pointers
* enable the IO task (@f <> 0)
*
* Return value :
* None.
*/
void abe_enable_data_transfer(abe_port_id id)
{
abe_port_protocol_t *protocol;
abe_data_format_t format;
_lock_enter
_log(id_enable_data_transfer,id,0,0)
abe_clean_temporary_buffers(id);
if (id == PDM_UL_PORT) {
/* initializes the ABE ATC descriptors in DMEM - MCPDM_UL */
protocol = &(abe_port[PDM_UL_PORT].protocol);
format = abe_port[PDM_UL_PORT].format;
abe_init_atc(PDM_UL_PORT);
abe_init_io_tasks(PDM_UL_PORT, &format, protocol);
}
if (id == PDM_DL_PORT) {
/* initializes the ABE ATC descriptors in DMEM - MCPDM_DL */
protocol = &(abe_port[PDM_DL_PORT].protocol);
format = abe_port[PDM_DL_PORT].format;
abe_init_atc(PDM_DL_PORT);
abe_init_io_tasks(PDM_DL_PORT, &format, protocol);
}
if (id == DMIC_PORT) {
/* one DMIC port enabled = all DMICs enabled,
* since there is a single DMIC path for all DMICs */
protocol = &(abe_port[DMIC_PORT].protocol);
format = abe_port[DMIC_PORT].format;
abe_init_atc(DMIC_PORT);
abe_init_io_tasks(DMIC_PORT, &format, protocol);
}
/* local host variable status= "port is running" */
abe_port[id].status = RUN_P;
/* enable DMA requests */
abe_enable_dma_request(id);
_lock_exit
}
/*
* ABE_DISABLE_DATA_TRANSFER
*
* Parameter :
* p: port indentifier
*
* Operations :
* disables the ATC descriptor and stop IO/port activities
* disable the IO task (@f = 0)
* clear ATC DMEM buffer, ATC enabled
*
* Return value :
* None.
*/
void abe_disable_data_transfer(abe_port_id id)
{
_lock_enter
_log(id_disable_data_transfer,id,0,0)
/* local host variable status= "port is running" */
abe_port[id].status = IDLE_P;
/* disable DMA requests */
abe_disable_dma_request(id);
/* disable ATC transfers */
abe_init_atc(id);
abe_clean_temporary_buffers(id);
_lock_exit
}
