Lines Matching refs:sdmac
326 struct sdma_channel *sdmac; member
623 static int sdma_config_ownership(struct sdma_channel *sdmac, in sdma_config_ownership() argument
626 struct sdma_engine *sdma = sdmac->sdma; in sdma_config_ownership()
627 int channel = sdmac->channel; in sdma_config_ownership()
722 static void sdma_event_enable(struct sdma_channel *sdmac, unsigned int event) in sdma_event_enable() argument
724 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_enable()
725 int channel = sdmac->channel; in sdma_event_enable()
734 static void sdma_event_disable(struct sdma_channel *sdmac, unsigned int event) in sdma_event_disable() argument
736 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_disable()
737 int channel = sdmac->channel; in sdma_event_disable()
751 static void sdma_start_desc(struct sdma_channel *sdmac) in sdma_start_desc() argument
753 struct virt_dma_desc *vd = vchan_next_desc(&sdmac->vc); in sdma_start_desc()
755 struct sdma_engine *sdma = sdmac->sdma; in sdma_start_desc()
756 int channel = sdmac->channel; in sdma_start_desc()
759 sdmac->desc = NULL; in sdma_start_desc()
762 sdmac->desc = desc = to_sdma_desc(&vd->tx); in sdma_start_desc()
768 sdma_enable_channel(sdma, sdmac->channel); in sdma_start_desc()
771 static void sdma_update_channel_loop(struct sdma_channel *sdmac) in sdma_update_channel_loop() argument
775 enum dma_status old_status = sdmac->status; in sdma_update_channel_loop()
781 while (sdmac->desc) { in sdma_update_channel_loop()
782 struct sdma_desc *desc = sdmac->desc; in sdma_update_channel_loop()
791 sdmac->status = DMA_ERROR; in sdma_update_channel_loop()
812 spin_unlock(&sdmac->vc.lock); in sdma_update_channel_loop()
814 spin_lock(&sdmac->vc.lock); in sdma_update_channel_loop()
817 sdmac->status = old_status; in sdma_update_channel_loop()
823 struct sdma_channel *sdmac = (struct sdma_channel *) data; in mxc_sdma_handle_channel_normal() local
827 sdmac->desc->chn_real_count = 0; in mxc_sdma_handle_channel_normal()
832 for (i = 0; i < sdmac->desc->num_bd; i++) { in mxc_sdma_handle_channel_normal()
833 bd = &sdmac->desc->bd[i]; in mxc_sdma_handle_channel_normal()
837 sdmac->desc->chn_real_count += bd->mode.count; in mxc_sdma_handle_channel_normal()
841 sdmac->status = DMA_ERROR; in mxc_sdma_handle_channel_normal()
843 sdmac->status = DMA_COMPLETE; in mxc_sdma_handle_channel_normal()
858 struct sdma_channel *sdmac = &sdma->channel[channel]; in sdma_int_handler() local
861 spin_lock(&sdmac->vc.lock); in sdma_int_handler()
862 desc = sdmac->desc; in sdma_int_handler()
864 if (sdmac->flags & IMX_DMA_SG_LOOP) { in sdma_int_handler()
865 sdma_update_channel_loop(sdmac); in sdma_int_handler()
867 mxc_sdma_handle_channel_normal(sdmac); in sdma_int_handler()
869 sdma_start_desc(sdmac); in sdma_int_handler()
873 spin_unlock(&sdmac->vc.lock); in sdma_int_handler()
883 static void sdma_get_pc(struct sdma_channel *sdmac, in sdma_get_pc() argument
886 struct sdma_engine *sdma = sdmac->sdma; in sdma_get_pc()
894 sdmac->pc_from_device = 0; in sdma_get_pc()
895 sdmac->pc_to_device = 0; in sdma_get_pc()
896 sdmac->device_to_device = 0; in sdma_get_pc()
897 sdmac->pc_to_pc = 0; in sdma_get_pc()
971 sdmac->pc_from_device = per_2_emi; in sdma_get_pc()
972 sdmac->pc_to_device = emi_2_per; in sdma_get_pc()
973 sdmac->device_to_device = per_2_per; in sdma_get_pc()
974 sdmac->pc_to_pc = emi_2_emi; in sdma_get_pc()
977 static int sdma_load_context(struct sdma_channel *sdmac) in sdma_load_context() argument
979 struct sdma_engine *sdma = sdmac->sdma; in sdma_load_context()
980 int channel = sdmac->channel; in sdma_load_context()
987 if (sdmac->direction == DMA_DEV_TO_MEM) in sdma_load_context()
988 load_address = sdmac->pc_from_device; in sdma_load_context()
989 else if (sdmac->direction == DMA_DEV_TO_DEV) in sdma_load_context()
990 load_address = sdmac->device_to_device; in sdma_load_context()
991 else if (sdmac->direction == DMA_MEM_TO_MEM) in sdma_load_context()
992 load_address = sdmac->pc_to_pc; in sdma_load_context()
994 load_address = sdmac->pc_to_device; in sdma_load_context()
1000 dev_dbg(sdma->dev, "wml = 0x%08x\n", (u32)sdmac->watermark_level); in sdma_load_context()
1001 dev_dbg(sdma->dev, "shp_addr = 0x%08x\n", sdmac->shp_addr); in sdma_load_context()
1002 dev_dbg(sdma->dev, "per_addr = 0x%08x\n", sdmac->per_addr); in sdma_load_context()
1003 dev_dbg(sdma->dev, "event_mask0 = 0x%08x\n", (u32)sdmac->event_mask[0]); in sdma_load_context()
1004 dev_dbg(sdma->dev, "event_mask1 = 0x%08x\n", (u32)sdmac->event_mask[1]); in sdma_load_context()
1014 context->gReg[0] = sdmac->event_mask[1]; in sdma_load_context()
1015 context->gReg[1] = sdmac->event_mask[0]; in sdma_load_context()
1016 context->gReg[2] = sdmac->per_addr; in sdma_load_context()
1017 context->gReg[6] = sdmac->shp_addr; in sdma_load_context()
1018 context->gReg[7] = sdmac->watermark_level; in sdma_load_context()
1039 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_disable_channel() local
1040 struct sdma_engine *sdma = sdmac->sdma; in sdma_disable_channel()
1041 int channel = sdmac->channel; in sdma_disable_channel()
1044 sdmac->status = DMA_ERROR; in sdma_disable_channel()
1050 struct sdma_channel *sdmac = container_of(work, struct sdma_channel, in sdma_channel_terminate_work() local
1063 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_channel_terminate_work()
1064 vchan_get_all_descriptors(&sdmac->vc, &head); in sdma_channel_terminate_work()
1065 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_channel_terminate_work()
1066 vchan_dma_desc_free_list(&sdmac->vc, &head); in sdma_channel_terminate_work()
1071 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_terminate_all() local
1074 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_terminate_all()
1078 if (sdmac->desc) { in sdma_terminate_all()
1079 vchan_terminate_vdesc(&sdmac->desc->vd); in sdma_terminate_all()
1080 sdmac->desc = NULL; in sdma_terminate_all()
1081 schedule_work(&sdmac->terminate_worker); in sdma_terminate_all()
1084 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_terminate_all()
1091 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_channel_synchronize() local
1093 vchan_synchronize(&sdmac->vc); in sdma_channel_synchronize()
1095 flush_work(&sdmac->terminate_worker); in sdma_channel_synchronize()
1098 static void sdma_set_watermarklevel_for_p2p(struct sdma_channel *sdmac) in sdma_set_watermarklevel_for_p2p() argument
1100 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_watermarklevel_for_p2p()
1102 int lwml = sdmac->watermark_level & SDMA_WATERMARK_LEVEL_LWML; in sdma_set_watermarklevel_for_p2p()
1103 int hwml = (sdmac->watermark_level & SDMA_WATERMARK_LEVEL_HWML) >> 16; in sdma_set_watermarklevel_for_p2p()
1105 set_bit(sdmac->event_id0 % 32, &sdmac->event_mask[1]); in sdma_set_watermarklevel_for_p2p()
1106 set_bit(sdmac->event_id1 % 32, &sdmac->event_mask[0]); in sdma_set_watermarklevel_for_p2p()
1108 if (sdmac->event_id0 > 31) in sdma_set_watermarklevel_for_p2p()
1109 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_LWE; in sdma_set_watermarklevel_for_p2p()
1111 if (sdmac->event_id1 > 31) in sdma_set_watermarklevel_for_p2p()
1112 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_HWE; in sdma_set_watermarklevel_for_p2p()
1120 sdmac->watermark_level &= ~(SDMA_WATERMARK_LEVEL_LWML | in sdma_set_watermarklevel_for_p2p()
1122 sdmac->watermark_level |= hwml; in sdma_set_watermarklevel_for_p2p()
1123 sdmac->watermark_level |= lwml << 16; in sdma_set_watermarklevel_for_p2p()
1124 swap(sdmac->event_mask[0], sdmac->event_mask[1]); in sdma_set_watermarklevel_for_p2p()
1127 if (sdmac->per_address2 >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1128 sdmac->per_address2 <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1129 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_SP; in sdma_set_watermarklevel_for_p2p()
1131 if (sdmac->per_address >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1132 sdmac->per_address <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1133 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_DP; in sdma_set_watermarklevel_for_p2p()
1135 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_CONT; in sdma_set_watermarklevel_for_p2p()
1140 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config_channel() local
1144 sdmac->event_mask[0] = 0; in sdma_config_channel()
1145 sdmac->event_mask[1] = 0; in sdma_config_channel()
1146 sdmac->shp_addr = 0; in sdma_config_channel()
1147 sdmac->per_addr = 0; in sdma_config_channel()
1149 switch (sdmac->peripheral_type) { in sdma_config_channel()
1151 sdma_config_ownership(sdmac, false, true, true); in sdma_config_channel()
1154 sdma_config_ownership(sdmac, false, true, false); in sdma_config_channel()
1157 sdma_config_ownership(sdmac, true, true, false); in sdma_config_channel()
1161 sdma_get_pc(sdmac, sdmac->peripheral_type); in sdma_config_channel()
1163 if ((sdmac->peripheral_type != IMX_DMATYPE_MEMORY) && in sdma_config_channel()
1164 (sdmac->peripheral_type != IMX_DMATYPE_DSP)) { in sdma_config_channel()
1166 if (sdmac->event_id1) { in sdma_config_channel()
1167 if (sdmac->peripheral_type == IMX_DMATYPE_ASRC_SP || in sdma_config_channel()
1168 sdmac->peripheral_type == IMX_DMATYPE_ASRC) in sdma_config_channel()
1169 sdma_set_watermarklevel_for_p2p(sdmac); in sdma_config_channel()
1171 __set_bit(sdmac->event_id0, sdmac->event_mask); in sdma_config_channel()
1174 sdmac->shp_addr = sdmac->per_address; in sdma_config_channel()
1175 sdmac->per_addr = sdmac->per_address2; in sdma_config_channel()
1177 sdmac->watermark_level = 0; /* FIXME: M3_BASE_ADDRESS */ in sdma_config_channel()
1183 static int sdma_set_channel_priority(struct sdma_channel *sdmac, in sdma_set_channel_priority() argument
1186 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_channel_priority()
1187 int channel = sdmac->channel; in sdma_set_channel_priority()
1226 desc->bd = dma_alloc_coherent(desc->sdmac->sdma->dev, bd_size, in sdma_alloc_bd()
1240 dma_free_coherent(desc->sdmac->sdma->dev, bd_size, desc->bd, in sdma_free_bd()
1254 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_alloc_chan_resources() local
1269 dev_dbg(sdmac->sdma->dev, "MEMCPY in case?\n"); in sdma_alloc_chan_resources()
1276 sdma_get_pc(sdmac, IMX_DMATYPE_MEMORY); in sdma_alloc_chan_resources()
1292 sdmac->peripheral_type = data->peripheral_type; in sdma_alloc_chan_resources()
1293 sdmac->event_id0 = data->dma_request; in sdma_alloc_chan_resources()
1294 sdmac->event_id1 = data->dma_request2; in sdma_alloc_chan_resources()
1296 ret = clk_enable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1299 ret = clk_enable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1303 ret = sdma_set_channel_priority(sdmac, prio); in sdma_alloc_chan_resources()
1310 clk_disable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1312 clk_disable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1318 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_free_chan_resources() local
1319 struct sdma_engine *sdma = sdmac->sdma; in sdma_free_chan_resources()
1325 sdma_event_disable(sdmac, sdmac->event_id0); in sdma_free_chan_resources()
1326 if (sdmac->event_id1) in sdma_free_chan_resources()
1327 sdma_event_disable(sdmac, sdmac->event_id1); in sdma_free_chan_resources()
1329 sdmac->event_id0 = 0; in sdma_free_chan_resources()
1330 sdmac->event_id1 = 0; in sdma_free_chan_resources()
1332 sdma_set_channel_priority(sdmac, 0); in sdma_free_chan_resources()
1338 static struct sdma_desc *sdma_transfer_init(struct sdma_channel *sdmac, in sdma_transfer_init() argument
1347 sdmac->status = DMA_IN_PROGRESS; in sdma_transfer_init()
1348 sdmac->direction = direction; in sdma_transfer_init()
1349 sdmac->flags = 0; in sdma_transfer_init()
1355 desc->sdmac = sdmac; in sdma_transfer_init()
1363 sdma_config_ownership(sdmac, false, true, false); in sdma_transfer_init()
1365 if (sdma_load_context(sdmac)) in sdma_transfer_init()
1380 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_memcpy() local
1381 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_memcpy()
1382 int channel = sdmac->channel; in sdma_prep_memcpy()
1394 desc = sdma_transfer_init(sdmac, DMA_MEM_TO_MEM, in sdma_prep_memcpy()
1429 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_memcpy()
1437 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_slave_sg() local
1438 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_slave_sg()
1440 int channel = sdmac->channel; in sdma_prep_slave_sg()
1444 sdma_config_write(chan, &sdmac->slave_config, direction); in sdma_prep_slave_sg()
1446 desc = sdma_transfer_init(sdmac, direction, sg_len); in sdma_prep_slave_sg()
1470 if (sdmac->word_size > DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_slave_sg()
1473 switch (sdmac->word_size) { in sdma_prep_slave_sg()
1507 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_slave_sg()
1512 sdmac->status = DMA_ERROR; in sdma_prep_slave_sg()
1521 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_dma_cyclic() local
1522 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_dma_cyclic()
1524 int channel = sdmac->channel; in sdma_prep_dma_cyclic()
1530 sdma_config_write(chan, &sdmac->slave_config, direction); in sdma_prep_dma_cyclic()
1532 desc = sdma_transfer_init(sdmac, direction, num_periods); in sdma_prep_dma_cyclic()
1538 sdmac->flags |= IMX_DMA_SG_LOOP; in sdma_prep_dma_cyclic()
1554 if (sdmac->word_size > DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_dma_cyclic()
1556 if (sdmac->word_size == DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_dma_cyclic()
1559 bd->mode.command = sdmac->word_size; in sdma_prep_dma_cyclic()
1578 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_dma_cyclic()
1583 sdmac->status = DMA_ERROR; in sdma_prep_dma_cyclic()
1591 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config_write() local
1594 sdmac->per_address = dmaengine_cfg->src_addr; in sdma_config_write()
1595 sdmac->watermark_level = dmaengine_cfg->src_maxburst * in sdma_config_write()
1597 sdmac->word_size = dmaengine_cfg->src_addr_width; in sdma_config_write()
1599 sdmac->per_address2 = dmaengine_cfg->src_addr; in sdma_config_write()
1600 sdmac->per_address = dmaengine_cfg->dst_addr; in sdma_config_write()
1601 sdmac->watermark_level = dmaengine_cfg->src_maxburst & in sdma_config_write()
1603 sdmac->watermark_level |= (dmaengine_cfg->dst_maxburst << 16) & in sdma_config_write()
1605 sdmac->word_size = dmaengine_cfg->dst_addr_width; in sdma_config_write()
1607 sdmac->per_address = dmaengine_cfg->dst_addr; in sdma_config_write()
1608 sdmac->watermark_level = dmaengine_cfg->dst_maxburst * in sdma_config_write()
1610 sdmac->word_size = dmaengine_cfg->dst_addr_width; in sdma_config_write()
1612 sdmac->direction = direction; in sdma_config_write()
1619 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config() local
1621 memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg)); in sdma_config()
1624 if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) in sdma_config()
1626 sdma_event_enable(sdmac, sdmac->event_id0); in sdma_config()
1628 if (sdmac->event_id1) { in sdma_config()
1629 if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events) in sdma_config()
1631 sdma_event_enable(sdmac, sdmac->event_id1); in sdma_config()
1641 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_tx_status() local
1652 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_tx_status()
1654 vd = vchan_find_desc(&sdmac->vc, cookie); in sdma_tx_status()
1657 else if (sdmac->desc && sdmac->desc->vd.tx.cookie == cookie) in sdma_tx_status()
1658 desc = sdmac->desc; in sdma_tx_status()
1661 if (sdmac->flags & IMX_DMA_SG_LOOP) in sdma_tx_status()
1670 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_tx_status()
1675 return sdmac->status; in sdma_tx_status()
1680 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_issue_pending() local
1683 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_issue_pending()
1684 if (vchan_issue_pending(&sdmac->vc) && !sdmac->desc) in sdma_issue_pending()
1685 sdma_start_desc(sdmac); in sdma_issue_pending()
1686 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_issue_pending()
1935 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_filter_fn() local
1941 sdmac->data = *data; in sdma_filter_fn()
1942 chan->private = &sdmac->data; in sdma_filter_fn()
2063 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_probe() local
2065 sdmac->sdma = sdma; in sdma_probe()
2067 sdmac->channel = i; in sdma_probe()
2068 sdmac->vc.desc_free = sdma_desc_free; in sdma_probe()
2069 INIT_WORK(&sdmac->terminate_worker, in sdma_probe()
2077 vchan_init(&sdmac->vc, &sdma->dma_device); in sdma_probe()
2188 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_remove() local
2190 tasklet_kill(&sdmac->vc.task); in sdma_remove()
2191 sdma_free_chan_resources(&sdmac->vc.chan); in sdma_remove()