/**
* Function Name: DSPDRV_Init
*
* Description: Initialize DSP driver
*
* Notes:
*
******************************************************************************/
void DSPDRV_Init()
{
UInt32 *dsp_shared_mem;
int rc;
AP_SharedMem_t *shared_mem;
UInt16 temp;
aTrace(LOG_AUDIO_DSP, "DSPDRV_Init:\n");
/* get DSP AP shared memory */
dsp_shared_mem = ioremap_nocache(AP_SH_BASE, AP_SH_SIZE);
if (dsp_shared_mem == NULL) {
aTrace(LOG_AUDIO_DSP,
"\n\r\t* mapping shared memory failed\n\r");
return;
}
shared_mem = (AP_SharedMem_t *) dsp_shared_mem;
temp = shared_mem->shared_dsp_support_chip_reg_ap_int;
/* initialize DSP AP shared memory */
VPSHAREDMEM_Init(dsp_shared_mem);
shared_mem->shared_dsp_support_chip_reg_ap_int = temp;
/* Create Tasklet */
tasklet_init(&(dsp_drv.task), dsp_thread_proc,
(unsigned long)(&dsp_drv));
/* enable AP to DSP interrupt */
IRQ_EnableRIPInt();
/* enable DSP to AP interrupt */
IRQ_Enable_BModem_Interrupt();
/* Plug in the ISR enables IRQ198 */
rc = request_irq(COMMS_SUBS6_IRQ, rip_isr,
IRQF_DISABLED | IRQF_NO_SUSPEND,
"bcm215xx-dsp", &(dsp_drv));
if (rc < 0) {
aTrace(LOG_AUDIO_DSP,
"RIPISR: %s failed to attach interrupt, rc = %d\n",
__func__, rc);
return;
}
CSL_VPU_Enable();
return;
}
/**
* Function Name: DSPDRV_Init
*
* Description: Initialize DSP driver
*
* Notes:
*
******************************************************************************/
void DSPDRV_Init()
{
UInt32 *dsp_shared_mem;
int rc;
aTrace(LOG_AUDIO_DSP, "DSPDRV_Init:\n");
dsp_drv.h = chal_intc_init(KONA_BINTC_BASE_ADDR);
dsp_shared_mem = DSPDRV_GetSharedMemoryAddress();
VPSHAREDMEM_Init(dsp_shared_mem);
/* temporary to open CP DSP shared memory structure on AP */
cp_shared_mem = ioremap_nocache(CP_SH_BASE, CP_SH_SIZE);
/* Create Tasklet */
tasklet_init(&(dsp_drv.task), dsp_thread_proc,
(unsigned long)(&dsp_drv));
IRQ_EnableRIPInt();
IRQ_Enable_BModem_Interrupt(BMIRQ23, 6);
/* Plug in the ISR enables IRQ198 */
rc = request_irq(COMMS_SUBS6_IRQ, rip_isr,
IRQF_DISABLED | IRQF_NO_SUSPEND,
"bcm215xx-dsp", &(dsp_drv));
if (rc < 0) {
aTrace(LOG_AUDIO_DSP,
"RIPISR: %s failed to attach interrupt, rc = %d\n",
__func__, rc);
return;
}
CSL_VPU_Enable();
return;
}
static void IRQ_TriggerRIPInt(void)
{
void __iomem *chipreg_base = (void __iomem *)(KONA_CHIPREG_VA);
/* Forcing new interrupt in case DSP woke up after the Interrupt */
/* was enabled */
if ((vp_shared_mem->shared_ap_support_chip_reg_ap_int == 0) &&
(vp_shared_mem->shared_dsp_support_chip_reg_ap_int == 1))
IRQ_EnableRIPInt();
if (vp_shared_mem->shared_ap_support_chip_reg_ap_int) {
aTrace(LOG_AUDIO_DSP, "\n\r\t*IRQ_TriggerRIPInt: New Int*\n\r");
writel((1<<CHIPREG_OUTPUT12), (chipreg_base +
CHIPREG_MDM_SW_INTR_SET_OFFSET));
} else {
aTrace(LOG_AUDIO_DSP, "\n\r\t*IRQ_TriggerRIPInt: Old Int*\n\r");
*(volatile UInt32*)(KONA_BINTC_BASE_ADDR +
BINTC_ISWIR1_OFFSET) = 1<<(IRQ_TO_BMIRQ(AP_RIP_IRQ)-32);
}
return;
}