Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Tiffany Lin | 1410 | 46.29% | 3 | 6.00% |
Yunfei Dong | 1368 | 44.91% | 30 | 60.00% |
Nícolas F. R. A. Prado | 216 | 7.09% | 2 | 4.00% |
Benjamin Gaignard | 14 | 0.46% | 1 | 2.00% |
Chen-Yu Tsai | 11 | 0.36% | 1 | 2.00% |
Mauro Carvalho Chehab | 5 | 0.16% | 1 | 2.00% |
Justin Green | 4 | 0.13% | 1 | 2.00% |
Beniamino Galvani | 4 | 0.13% | 1 | 2.00% |
Hsin-Yi, Wang | 4 | 0.13% | 2 | 4.00% |
Alexandre Courbot | 3 | 0.10% | 3 | 6.00% |
Uwe Kleine-König | 2 | 0.07% | 1 | 2.00% |
Tomasz Figa | 2 | 0.07% | 1 | 2.00% |
Thomas Gleixner | 1 | 0.03% | 1 | 2.00% |
Rob Herring | 1 | 0.03% | 1 | 2.00% |
Hans Verkuil | 1 | 0.03% | 1 | 2.00% |
Total | 3046 | 50 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2016 MediaTek Inc. * Author: PC Chen <pc.chen@mediatek.com> * Tiffany Lin <tiffany.lin@mediatek.com> */ #include <linux/bitfield.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <media/v4l2-event.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-dma-contig.h> #include <media/v4l2-device.h> #include "mtk_vcodec_dec.h" #include "mtk_vcodec_dec_hw.h" #include "mtk_vcodec_dec_pm.h" #include "../common/mtk_vcodec_intr.h" static int mtk_vcodec_get_hw_count(struct mtk_vcodec_dec_ctx *ctx, struct mtk_vcodec_dec_dev *dev) { switch (dev->vdec_pdata->hw_arch) { case MTK_VDEC_PURE_SINGLE_CORE: return MTK_VDEC_ONE_CORE; case MTK_VDEC_LAT_SINGLE_CORE: return MTK_VDEC_ONE_LAT_ONE_CORE; default: mtk_v4l2_vdec_err(ctx, "hw arch %d not supported", dev->vdec_pdata->hw_arch); return MTK_VDEC_NO_HW; } } static bool mtk_vcodec_is_hw_active(struct mtk_vcodec_dec_dev *dev) { u32 cg_status; if (dev->vdecsys_regmap) return !regmap_test_bits(dev->vdecsys_regmap, VDEC_HW_ACTIVE_ADDR, VDEC_HW_ACTIVE_MASK); cg_status = readl(dev->reg_base[VDEC_SYS] + VDEC_HW_ACTIVE_ADDR); return !FIELD_GET(VDEC_HW_ACTIVE_MASK, cg_status); } static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv) { struct mtk_vcodec_dec_dev *dev = priv; struct mtk_vcodec_dec_ctx *ctx; unsigned int dec_done_status = 0; void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG; ctx = mtk_vcodec_get_curr_ctx(dev, MTK_VDEC_CORE); if (!mtk_vcodec_is_hw_active(dev)) { mtk_v4l2_vdec_err(ctx, "DEC ISR, VDEC active is not 0x0"); return IRQ_HANDLED; } dec_done_status = readl(vdec_misc_addr); ctx->irq_status = dec_done_status; if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) != MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) return IRQ_HANDLED; /* clear interrupt */ writel((readl(vdec_misc_addr) | VDEC_IRQ_CFG), dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG); writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR), dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG); wake_up_dec_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0); mtk_v4l2_vdec_dbg(3, ctx, "wake up ctx %d, dec_done_status=%x", ctx->id, dec_done_status); return IRQ_HANDLED; } static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dec_dev *dev) { struct platform_device *pdev = dev->plat_dev; int reg_num, i; struct resource *res; bool has_vdecsys_reg; int num_max_vdec_regs; static const char * const mtk_dec_reg_names[] = { "misc", "ld", "top", "cm", "ad", "av", "pp", "hwd", "hwq", "hwb", "hwg" }; /* * If we have reg-names in devicetree, this means that we're on a new * register organization, which implies that the VDEC_SYS iospace gets * R/W through a syscon (regmap). * Here we try to get the "misc" iostart only to check if we have reg-names */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "misc"); if (res) has_vdecsys_reg = false; else has_vdecsys_reg = true; num_max_vdec_regs = has_vdecsys_reg ? NUM_MAX_VDEC_REG_BASE : ARRAY_SIZE(mtk_dec_reg_names); /* Sizeof(u32) * 4 bytes for each register base. */ reg_num = of_property_count_elems_of_size(pdev->dev.of_node, "reg", sizeof(u32) * 4); if (reg_num <= 0 || reg_num > num_max_vdec_regs) { dev_err(&pdev->dev, "Invalid register property size: %d\n", reg_num); return -EINVAL; } if (has_vdecsys_reg) { for (i = 0; i < reg_num; i++) { dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i); if (IS_ERR(dev->reg_base[i])) return PTR_ERR(dev->reg_base[i]); dev_dbg(&pdev->dev, "reg[%d] base=%p", i, dev->reg_base[i]); } } else { for (i = 0; i < reg_num; i++) { dev->reg_base[i+1] = devm_platform_ioremap_resource_byname(pdev, mtk_dec_reg_names[i]); if (IS_ERR(dev->reg_base[i+1])) return PTR_ERR(dev->reg_base[i+1]); dev_dbg(&pdev->dev, "reg[%d] base=%p", i + 1, dev->reg_base[i + 1]); } dev->vdecsys_regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "mediatek,vdecsys"); if (IS_ERR(dev->vdecsys_regmap)) { dev_err(&pdev->dev, "Missing mediatek,vdecsys property"); return PTR_ERR(dev->vdecsys_regmap); } } return 0; } static int mtk_vcodec_init_dec_resources(struct mtk_vcodec_dec_dev *dev) { struct platform_device *pdev = dev->plat_dev; int ret; ret = mtk_vcodec_get_reg_bases(dev); if (ret) return ret; if (dev->vdec_pdata->is_subdev_supported) return 0; dev->dec_irq = platform_get_irq(pdev, 0); if (dev->dec_irq < 0) return dev->dec_irq; irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN); ret = devm_request_irq(&pdev->dev, dev->dec_irq, mtk_vcodec_dec_irq_handler, 0, pdev->name, dev); if (ret) { dev_err(&pdev->dev, "failed to install dev->dec_irq %d (%d)", dev->dec_irq, ret); return ret; } ret = mtk_vcodec_init_dec_clk(pdev, &dev->pm); if (ret < 0) { dev_err(&pdev->dev, "failed to get mt vcodec clock source"); return ret; } pm_runtime_enable(&pdev->dev); return 0; } static int fops_vcodec_open(struct file *file) { struct mtk_vcodec_dec_dev *dev = video_drvdata(file); struct mtk_vcodec_dec_ctx *ctx = NULL; int ret = 0, i, hw_count; struct vb2_queue *src_vq; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; mutex_lock(&dev->dev_mutex); ctx->id = dev->id_counter++; v4l2_fh_init(&ctx->fh, video_devdata(file)); file->private_data = &ctx->fh; v4l2_fh_add(&ctx->fh); INIT_LIST_HEAD(&ctx->list); ctx->dev = dev; if (ctx->dev->vdec_pdata->is_subdev_supported) { hw_count = mtk_vcodec_get_hw_count(ctx, dev); if (!hw_count || !dev->subdev_prob_done) { ret = -EINVAL; goto err_ctrls_setup; } ret = dev->subdev_prob_done(dev); if (ret) goto err_ctrls_setup; for (i = 0; i < hw_count; i++) init_waitqueue_head(&ctx->queue[i]); } else { init_waitqueue_head(&ctx->queue[0]); } mutex_init(&ctx->lock); ctx->type = MTK_INST_DECODER; ret = dev->vdec_pdata->ctrls_setup(ctx); if (ret) { mtk_v4l2_vdec_err(ctx, "Failed to setup mt vcodec controls"); goto err_ctrls_setup; } ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_dec, ctx, &mtk_vcodec_dec_queue_init); if (IS_ERR((__force void *)ctx->m2m_ctx)) { ret = PTR_ERR((__force void *)ctx->m2m_ctx); mtk_v4l2_vdec_err(ctx, "Failed to v4l2_m2m_ctx_init() (%d)", ret); goto err_m2m_ctx_init; } src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); ctx->empty_flush_buf.vb.vb2_buf.vb2_queue = src_vq; mtk_vcodec_dec_set_default_params(ctx); if (v4l2_fh_is_singular(&ctx->fh)) { /* * Does nothing if firmware was already loaded. */ ret = mtk_vcodec_fw_load_firmware(dev->fw_handler); if (ret < 0) { /* * Return 0 if downloading firmware successfully, * otherwise it is failed */ mtk_v4l2_vdec_err(ctx, "failed to load firmware!"); goto err_load_fw; } dev->dec_capability = mtk_vcodec_fw_get_vdec_capa(dev->fw_handler); mtk_v4l2_vdec_dbg(0, ctx, "decoder capability %x", dev->dec_capability); } ctx->dev->vdec_pdata->init_vdec_params(ctx); mutex_lock(&dev->dev_ctx_lock); list_add(&ctx->list, &dev->ctx_list); mutex_unlock(&dev->dev_ctx_lock); mtk_vcodec_dbgfs_create(ctx); mutex_unlock(&dev->dev_mutex); mtk_v4l2_vdec_dbg(0, ctx, "%s decoder [%d]", dev_name(&dev->plat_dev->dev), ctx->id); return ret; /* Deinit when failure occurred */ err_load_fw: v4l2_m2m_ctx_release(ctx->m2m_ctx); err_m2m_ctx_init: v4l2_ctrl_handler_free(&ctx->ctrl_hdl); err_ctrls_setup: v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); kfree(ctx); mutex_unlock(&dev->dev_mutex); return ret; } static int fops_vcodec_release(struct file *file) { struct mtk_vcodec_dec_dev *dev = video_drvdata(file); struct mtk_vcodec_dec_ctx *ctx = fh_to_dec_ctx(file->private_data); mtk_v4l2_vdec_dbg(0, ctx, "[%d] decoder", ctx->id); mutex_lock(&dev->dev_mutex); /* * Call v4l2_m2m_ctx_release before mtk_vcodec_dec_release. First, it * makes sure the worker thread is not running after vdec_if_deinit. * Second, the decoder will be flushed and all the buffers will be * returned in stop_streaming. */ v4l2_m2m_ctx_release(ctx->m2m_ctx); mtk_vcodec_dec_release(ctx); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); v4l2_ctrl_handler_free(&ctx->ctrl_hdl); mtk_vcodec_dbgfs_remove(dev, ctx->id); mutex_lock(&dev->dev_ctx_lock); list_del_init(&ctx->list); mutex_unlock(&dev->dev_ctx_lock); kfree(ctx); mutex_unlock(&dev->dev_mutex); return 0; } static const struct v4l2_file_operations mtk_vcodec_fops = { .owner = THIS_MODULE, .open = fops_vcodec_open, .release = fops_vcodec_release, .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = v4l2_m2m_fop_mmap, }; static void mtk_vcodec_dec_get_chip_name(struct mtk_vcodec_dec_dev *vdec_dev) { struct device *dev = &vdec_dev->plat_dev->dev; if (of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8173; else if (of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8183; else if (of_device_is_compatible(dev->of_node, "mediatek,mt8192-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8192; else if (of_device_is_compatible(dev->of_node, "mediatek,mt8195-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8195; else if (of_device_is_compatible(dev->of_node, "mediatek,mt8186-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8186; else if (of_device_is_compatible(dev->of_node, "mediatek,mt8188-vcodec-dec")) vdec_dev->chip_name = MTK_VDEC_MT8188; else vdec_dev->chip_name = MTK_VDEC_INVAL; } static int mtk_vcodec_probe(struct platform_device *pdev) { struct mtk_vcodec_dec_dev *dev; struct video_device *vfd_dec; phandle rproc_phandle; enum mtk_vcodec_fw_type fw_type; int i, ret; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; INIT_LIST_HEAD(&dev->ctx_list); dev->plat_dev = pdev; mtk_vcodec_dec_get_chip_name(dev); if (dev->chip_name == MTK_VDEC_INVAL) { dev_err(&pdev->dev, "Failed to get decoder chip name"); return -EINVAL; } dev->vdec_pdata = of_device_get_match_data(&pdev->dev); if (!of_property_read_u32(pdev->dev.of_node, "mediatek,vpu", &rproc_phandle)) { fw_type = VPU; } else if (!of_property_read_u32(pdev->dev.of_node, "mediatek,scp", &rproc_phandle)) { fw_type = SCP; } else { dev_dbg(&pdev->dev, "Could not get vdec IPI device"); return -ENODEV; } dma_set_max_seg_size(&pdev->dev, UINT_MAX); dev->fw_handler = mtk_vcodec_fw_select(dev, fw_type, DECODER); if (IS_ERR(dev->fw_handler)) return PTR_ERR(dev->fw_handler); ret = mtk_vcodec_init_dec_resources(dev); if (ret) { dev_err(&pdev->dev, "Failed to init dec resources"); goto err_dec_pm; } if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch)) { dev->core_workqueue = alloc_ordered_workqueue("core-decoder", WQ_MEM_RECLAIM | WQ_FREEZABLE); if (!dev->core_workqueue) { dev_dbg(&pdev->dev, "Failed to create core workqueue"); ret = -EINVAL; goto err_res; } } for (i = 0; i < MTK_VDEC_HW_MAX; i++) mutex_init(&dev->dec_mutex[i]); mutex_init(&dev->dev_mutex); mutex_init(&dev->dev_ctx_lock); spin_lock_init(&dev->irqlock); snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s", "[/MTK_V4L2_VDEC]"); ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); if (ret) { dev_err(&pdev->dev, "v4l2_device_register err=%d", ret); goto err_core_workq; } vfd_dec = video_device_alloc(); if (!vfd_dec) { dev_err(&pdev->dev, "Failed to allocate video device"); ret = -ENOMEM; goto err_dec_alloc; } vfd_dec->fops = &mtk_vcodec_fops; vfd_dec->ioctl_ops = &mtk_vdec_ioctl_ops; vfd_dec->release = video_device_release; vfd_dec->lock = &dev->dev_mutex; vfd_dec->v4l2_dev = &dev->v4l2_dev; vfd_dec->vfl_dir = VFL_DIR_M2M; vfd_dec->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; snprintf(vfd_dec->name, sizeof(vfd_dec->name), "%s", MTK_VCODEC_DEC_NAME); video_set_drvdata(vfd_dec, dev); dev->vfd_dec = vfd_dec; platform_set_drvdata(pdev, dev); dev->m2m_dev_dec = v4l2_m2m_init(&mtk_vdec_m2m_ops); if (IS_ERR((__force void *)dev->m2m_dev_dec)) { dev_err(&pdev->dev, "Failed to init mem2mem dec device"); ret = PTR_ERR((__force void *)dev->m2m_dev_dec); goto err_dec_alloc; } dev->decode_workqueue = alloc_ordered_workqueue(MTK_VCODEC_DEC_NAME, WQ_MEM_RECLAIM | WQ_FREEZABLE); if (!dev->decode_workqueue) { dev_err(&pdev->dev, "Failed to create decode workqueue"); ret = -EINVAL; goto err_event_workq; } if (dev->vdec_pdata->is_subdev_supported) { ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); if (ret) { dev_err(&pdev->dev, "Main device of_platform_populate failed."); goto err_reg_cont; } } else { set_bit(MTK_VDEC_CORE, dev->subdev_bitmap); } atomic_set(&dev->dec_active_cnt, 0); memset(dev->vdec_racing_info, 0, sizeof(dev->vdec_racing_info)); mutex_init(&dev->dec_racing_info_mutex); ret = video_register_device(vfd_dec, VFL_TYPE_VIDEO, -1); if (ret) { dev_err(&pdev->dev, "Failed to register video device"); goto err_reg_cont; } if (dev->vdec_pdata->uses_stateless_api) { v4l2_disable_ioctl(vfd_dec, VIDIOC_DECODER_CMD); v4l2_disable_ioctl(vfd_dec, VIDIOC_TRY_DECODER_CMD); dev->mdev_dec.dev = &pdev->dev; strscpy(dev->mdev_dec.model, MTK_VCODEC_DEC_NAME, sizeof(dev->mdev_dec.model)); media_device_init(&dev->mdev_dec); dev->mdev_dec.ops = &mtk_vcodec_media_ops; dev->v4l2_dev.mdev = &dev->mdev_dec; ret = v4l2_m2m_register_media_controller(dev->m2m_dev_dec, dev->vfd_dec, MEDIA_ENT_F_PROC_VIDEO_DECODER); if (ret) { dev_err(&pdev->dev, "Failed to register media controller"); goto err_dec_mem_init; } ret = media_device_register(&dev->mdev_dec); if (ret) { dev_err(&pdev->dev, "Failed to register media device"); goto err_media_reg; } dev_dbg(&pdev->dev, "media registered as /dev/media%d", vfd_dec->minor); } mtk_vcodec_dbgfs_init(dev, false); dev_dbg(&pdev->dev, "decoder registered as /dev/video%d", vfd_dec->minor); return 0; err_media_reg: v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); err_dec_mem_init: video_unregister_device(vfd_dec); err_reg_cont: if (dev->vdec_pdata->uses_stateless_api) media_device_cleanup(&dev->mdev_dec); destroy_workqueue(dev->decode_workqueue); err_event_workq: v4l2_m2m_release(dev->m2m_dev_dec); err_dec_alloc: v4l2_device_unregister(&dev->v4l2_dev); err_core_workq: if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch)) destroy_workqueue(dev->core_workqueue); err_res: if (!dev->vdec_pdata->is_subdev_supported) pm_runtime_disable(dev->pm.dev); err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret; } static const struct of_device_id mtk_vcodec_match[] = { { .compatible = "mediatek,mt8173-vcodec-dec", .data = &mtk_vdec_8173_pdata, }, { .compatible = "mediatek,mt8183-vcodec-dec", .data = &mtk_vdec_8183_pdata, }, { .compatible = "mediatek,mt8192-vcodec-dec", .data = &mtk_lat_sig_core_pdata, }, { .compatible = "mediatek,mt8186-vcodec-dec", .data = &mtk_vdec_single_core_pdata, }, { .compatible = "mediatek,mt8195-vcodec-dec", .data = &mtk_lat_sig_core_pdata, }, { .compatible = "mediatek,mt8188-vcodec-dec", .data = &mtk_lat_sig_core_pdata, }, {}, }; MODULE_DEVICE_TABLE(of, mtk_vcodec_match); static void mtk_vcodec_dec_remove(struct platform_device *pdev) { struct mtk_vcodec_dec_dev *dev = platform_get_drvdata(pdev); destroy_workqueue(dev->decode_workqueue); if (media_devnode_is_registered(dev->mdev_dec.devnode)) { media_device_unregister(&dev->mdev_dec); v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec); media_device_cleanup(&dev->mdev_dec); } if (dev->m2m_dev_dec) v4l2_m2m_release(dev->m2m_dev_dec); if (dev->vfd_dec) video_unregister_device(dev->vfd_dec); mtk_vcodec_dbgfs_deinit(&dev->dbgfs); v4l2_device_unregister(&dev->v4l2_dev); if (!dev->vdec_pdata->is_subdev_supported) pm_runtime_disable(dev->pm.dev); mtk_vcodec_fw_release(dev->fw_handler); } static struct platform_driver mtk_vcodec_dec_driver = { .probe = mtk_vcodec_probe, .remove_new = mtk_vcodec_dec_remove, .driver = { .name = MTK_VCODEC_DEC_NAME, .of_match_table = mtk_vcodec_match, }, }; module_platform_driver(mtk_vcodec_dec_driver); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver");
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1