/* * audioixp_alloc_port() * * Description: * This routine allocates the DMA handles and the memory for the * DMA engines to use. It also configures the BDL lists properly * for use. * * Arguments: * dev_info_t *dip Pointer to the device's devinfo * * Returns: * DDI_SUCCESS Registers successfully mapped * DDI_FAILURE Registers not successfully mapped */ static int audioixp_alloc_port(audioixp_state_t *statep, int num) { ddi_dma_cookie_t cookie; uint_t count; int dir; unsigned caps; char *prop; audio_dev_t *adev; audioixp_port_t *port; uint32_t paddr; int rc; dev_info_t *dip; audioixp_bd_entry_t *bdentry; adev = statep->adev; dip = statep->dip; port = kmem_zalloc(sizeof (*port), KM_SLEEP); port->statep = statep; port->started = B_FALSE; port->num = num; switch (num) { case IXP_REC: statep->rec_port = port; prop = "record-interrupts"; dir = DDI_DMA_READ; caps = ENGINE_INPUT_CAP; port->sync_dir = DDI_DMA_SYNC_FORKERNEL; port->nchan = 2; break; case IXP_PLAY: statep->play_port = port; prop = "play-interrupts"; dir = DDI_DMA_WRITE; caps = ENGINE_OUTPUT_CAP; port->sync_dir = DDI_DMA_SYNC_FORDEV; /* This could possibly be conditionalized */ port->nchan = 6; break; default: audio_dev_warn(adev, "bad port number (%d)!", num); return (DDI_FAILURE); } port->intrs = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, prop, IXP_INTS); /* make sure the values are good */ if (port->intrs < IXP_MIN_INTS) { audio_dev_warn(adev, "%s too low, %d, resetting to %d", prop, port->intrs, IXP_INTS); port->intrs = IXP_INTS; } else if (port->intrs > IXP_MAX_INTS) { audio_dev_warn(adev, "%s too high, %d, resetting to %d", prop, port->intrs, IXP_INTS); port->intrs = IXP_INTS; } /* * Figure out how much space we need. Sample rate is 48kHz, and * we need to store 8 chunks. (Note that this means that low * interrupt frequencies will require more RAM.) */ port->fragfr = 48000 / port->intrs; port->fragfr = IXP_ROUNDUP(port->fragfr, IXP_MOD_SIZE); port->fragsz = port->fragfr * port->nchan * 2; port->samp_size = port->fragsz * IXP_BD_NUMS; /* allocate dma handle */ rc = ddi_dma_alloc_handle(dip, &sample_buf_dma_attr, DDI_DMA_SLEEP, NULL, &port->samp_dmah); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_alloc_handle failed: %d", rc); return (DDI_FAILURE); } /* allocate DMA buffer */ rc = ddi_dma_mem_alloc(port->samp_dmah, port->samp_size, &buf_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &port->samp_kaddr, &port->samp_size, &port->samp_acch); if (rc == DDI_FAILURE) { audio_dev_warn(adev, "dma_mem_alloc failed"); return (DDI_FAILURE); } /* bind DMA buffer */ rc = ddi_dma_addr_bind_handle(port->samp_dmah, NULL, port->samp_kaddr, port->samp_size, dir|DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &cookie, &count); if ((rc != DDI_DMA_MAPPED) || (count != 1)) { audio_dev_warn(adev, "ddi_dma_addr_bind_handle failed: %d", rc); return (DDI_FAILURE); } port->samp_paddr = cookie.dmac_address; /* * now, from here we allocate DMA memory for buffer descriptor list. * we allocate adjacent DMA memory for all DMA engines. */ rc = ddi_dma_alloc_handle(dip, &bdlist_dma_attr, DDI_DMA_SLEEP, NULL, &port->bdl_dmah); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_alloc_handle(bdlist) failed"); return (DDI_FAILURE); } /* * we allocate all buffer descriptors lists in continuous dma memory. */ port->bdl_size = sizeof (audioixp_bd_entry_t) * IXP_BD_NUMS; rc = ddi_dma_mem_alloc(port->bdl_dmah, port->bdl_size, &dev_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &port->bdl_kaddr, &port->bdl_size, &port->bdl_acch); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_mem_alloc(bdlist) failed"); return (DDI_FAILURE); } rc = ddi_dma_addr_bind_handle(port->bdl_dmah, NULL, port->bdl_kaddr, port->bdl_size, DDI_DMA_WRITE|DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &cookie, &count); if ((rc != DDI_DMA_MAPPED) || (count != 1)) { audio_dev_warn(adev, "addr_bind_handle failed"); return (DDI_FAILURE); } port->bdl_paddr = cookie.dmac_address; /* * Wire up the BD list. */ paddr = port->samp_paddr; bdentry = (void *)port->bdl_kaddr; for (int i = 0; i < IXP_BD_NUMS; i++) { /* set base address of buffer */ ddi_put32(port->bdl_acch, &bdentry->buf_base, paddr); ddi_put16(port->bdl_acch, &bdentry->status, 0); ddi_put16(port->bdl_acch, &bdentry->buf_len, port->fragsz / 4); ddi_put32(port->bdl_acch, &bdentry->next, port->bdl_paddr + (((i + 1) % IXP_BD_NUMS) * sizeof (audioixp_bd_entry_t))); paddr += port->fragsz; bdentry++; } (void) ddi_dma_sync(port->bdl_dmah, 0, 0, DDI_DMA_SYNC_FORDEV); port->engine = audio_engine_alloc(&audioixp_engine_ops, caps); if (port->engine == NULL) { audio_dev_warn(adev, "audio_engine_alloc failed"); return (DDI_FAILURE); } audio_engine_set_private(port->engine, port); audio_dev_add_engine(adev, port->engine); return (DDI_SUCCESS); }
/* * audio1575_alloc_port() * * Description: * This routine allocates the DMA handles and the memory for the * DMA engines to use. It also configures the BDL lists properly * for use. * * Arguments: * dev_info_t *dip Pointer to the device's devinfo * int num M1575_PLAY or M1575_REC * uint8_t nchan Number of channels (2 = stereo, 6 = 5.1, etc.) * * Returns: * DDI_SUCCESS Registers successfully mapped * DDI_FAILURE Registers not successfully mapped */ static int audio1575_alloc_port(audio1575_state_t *statep, int num, uint8_t nchan) { ddi_dma_cookie_t cookie; uint_t count; int dir; unsigned caps; audio_dev_t *adev; audio1575_port_t *port; uint32_t *kaddr; int rc; dev_info_t *dip; adev = statep->adev; dip = statep->dip; port = kmem_zalloc(sizeof (*port), KM_SLEEP); statep->ports[num] = port; port->num = num; port->statep = statep; port->nchan = nchan; if (num == M1575_REC) { dir = DDI_DMA_READ; caps = ENGINE_INPUT_CAP; port->sync_dir = DDI_DMA_SYNC_FORKERNEL; } else { dir = DDI_DMA_WRITE; caps = ENGINE_OUTPUT_CAP; port->sync_dir = DDI_DMA_SYNC_FORDEV; } /* * We use one big sample area. The sample area must be larger * than about 1.5 framework fragment sizes. (Currently 480 * * 1.5 = 720 frames.) This is necessary to ensure that we * don't have to involve an interrupt service routine on our * own, to keep the last valid index updated reasonably. */ port->nframes = 2048; port->samp_size = port->nframes * port->nchan * sizeof (int16_t); /* allocate dma handle */ rc = ddi_dma_alloc_handle(dip, &sample_buf_dma_attr, DDI_DMA_SLEEP, NULL, &port->samp_dmah); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_alloc_handle failed: %d", rc); return (DDI_FAILURE); } /* allocate DMA buffer */ rc = ddi_dma_mem_alloc(port->samp_dmah, port->samp_size, &buf_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &port->samp_kaddr, &port->samp_size, &port->samp_acch); if (rc == DDI_FAILURE) { audio_dev_warn(adev, "dma_mem_alloc failed"); return (DDI_FAILURE); } /* bind DMA buffer */ rc = ddi_dma_addr_bind_handle(port->samp_dmah, NULL, port->samp_kaddr, port->samp_size, dir|DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &cookie, &count); if ((rc != DDI_DMA_MAPPED) || (count != 1)) { audio_dev_warn(adev, "ddi_dma_addr_bind_handle failed: %d", rc); return (DDI_FAILURE); } port->samp_paddr = cookie.dmac_address; /* * now, from here we allocate DMA memory for buffer descriptor list. * we allocate adjacent DMA memory for all DMA engines. */ rc = ddi_dma_alloc_handle(dip, &bdlist_dma_attr, DDI_DMA_SLEEP, NULL, &port->bdl_dmah); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_alloc_handle(bdlist) failed"); return (DDI_FAILURE); } /* * we allocate all buffer descriptors lists in continuous dma memory. */ port->bdl_size = sizeof (m1575_bd_entry_t) * M1575_BD_NUMS; rc = ddi_dma_mem_alloc(port->bdl_dmah, port->bdl_size, &dev_attr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &port->bdl_kaddr, &port->bdl_size, &port->bdl_acch); if (rc != DDI_SUCCESS) { audio_dev_warn(adev, "ddi_dma_mem_alloc(bdlist) failed"); return (DDI_FAILURE); } /* * Wire up the BD list. We do this *before* binding the BD list * so that we don't have to do an extra ddi_dma_sync. */ kaddr = (void *)port->bdl_kaddr; for (int i = 0; i < M1575_BD_NUMS; i++) { /* set base address of buffer */ ddi_put32(port->bdl_acch, kaddr, port->samp_paddr); kaddr++; /* set size in frames, and enable IOC interrupt */ ddi_put32(port->bdl_acch, kaddr, ((port->samp_size / sizeof (int16_t)) | (1U << 31))); kaddr++; } rc = ddi_dma_addr_bind_handle(port->bdl_dmah, NULL, port->bdl_kaddr, port->bdl_size, DDI_DMA_WRITE|DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &cookie, &count); if ((rc != DDI_DMA_MAPPED) || (count != 1)) { audio_dev_warn(adev, "addr_bind_handle failed"); return (DDI_FAILURE); } port->bdl_paddr = cookie.dmac_address; port->engine = audio_engine_alloc(&audio1575_engine_ops, caps); if (port->engine == NULL) { audio_dev_warn(adev, "audio_engine_alloc failed"); return (DDI_FAILURE); } audio_engine_set_private(port->engine, port); audio_dev_add_engine(adev, port->engine); return (DDI_SUCCESS); }