Uses component framework to manage each hardware information which includes irq/power/clk. The hardware includes LAT0, LAT1 and CORE.
Signed-off-by: Yunfei Dong yunfei.dong@mediatek.com --- drivers/media/platform/mtk-vcodec/Makefile | 1 + .../platform/mtk-vcodec/mtk_vcodec_dec.h | 1 + .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 194 +++++++++++++++--- .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c | 184 +++++++++++++++++ .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h | 49 +++++ .../mtk-vcodec/mtk_vcodec_dec_stateful.c | 1 + .../mtk-vcodec/mtk_vcodec_dec_stateless.c | 1 + .../platform/mtk-vcodec/mtk_vcodec_drv.h | 19 ++ 8 files changed, 416 insertions(+), 34 deletions(-) create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile index ca8e9e7a9c4e..edeb3b66e9e9 100644 --- a/drivers/media/platform/mtk-vcodec/Makefile +++ b/drivers/media/platform/mtk-vcodec/Makefile @@ -15,6 +15,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \ mtk_vcodec_dec_stateful.o \ mtk_vcodec_dec_stateless.o \ mtk_vcodec_dec_pm.o \ + mtk_vcodec_dec_hw.o \
mtk-vcodec-enc-y := venc/venc_vp8_if.o \ venc/venc_h264_if.o \ diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h index 9fbd24186c1a..c509224cbff4 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h @@ -66,6 +66,7 @@ extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops; extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops; extern const struct media_device_ops mtk_vcodec_media_ops;
+extern struct platform_driver mtk_vdec_comp_driver;
/* * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index dd749d41c75a..4c6f4d7612fa 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -5,6 +5,7 @@ * Tiffany Lin tiffany.lin@mediatek.com */
+#include <linux/component.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -18,19 +19,90 @@
#include "mtk_vcodec_drv.h" #include "mtk_vcodec_dec.h" +#include "mtk_vcodec_dec_hw.h" #include "mtk_vcodec_dec_pm.h" #include "mtk_vcodec_intr.h" -#include "mtk_vcodec_util.h" #include "mtk_vcodec_fw.h"
-#define VDEC_HW_ACTIVE 0x10 -#define VDEC_IRQ_CFG 0x11 -#define VDEC_IRQ_CLR 0x10 -#define VDEC_IRQ_CFG_REG 0xa4 - module_param(mtk_v4l2_dbg_level, int, 0644); module_param(mtk_vcodec_dbg, bool, 0644);
+static struct of_device_id mtk_vdec_drv_ids[] = { + { + .compatible = "mediatek,mtk-vcodec-lat", + .data = (void *)MTK_VDEC_LAT0, + }, + { + .compatible = "mediatek,mtk-vcodec-core", + .data = (void *)MTK_VDEC_CORE, + }, + {}, +}; + +static inline int mtk_vdec_compare_of(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +static inline void mtk_vdec_release_of(struct device *dev, void *data) +{ + of_node_put(data); +} + +static inline int mtk_vdec_bind(struct device *dev) +{ + struct mtk_vcodec_dev *data = dev_get_drvdata(dev); + + return component_bind_all(dev, data); +} + +static inline void mtk_vdec_unbind(struct device *dev) +{ + struct mtk_vcodec_dev *data = dev_get_drvdata(dev); + + component_unbind_all(dev, data); +} + +static const struct component_master_ops mtk_vdec_ops = { + .bind = mtk_vdec_bind, + .unbind = mtk_vdec_unbind, +}; + +static struct component_match *mtk_vcodec_match_add( + struct mtk_vcodec_dev *vdec_dev) + { + struct platform_device *pdev = vdec_dev->plat_dev; + struct component_match *match = NULL; + struct device_node *comp_node; + enum mtk_vdec_hw_id comp_idx; + const struct of_device_id *of_id; + int i; + + for (i = 0; i < ARRAY_SIZE(mtk_vdec_drv_ids); i++) { + of_id = &mtk_vdec_drv_ids[i]; + comp_node = of_find_compatible_node(NULL, NULL, + of_id->compatible); + if (!comp_node) + continue; + + if (!of_device_is_available(comp_node)) { + of_node_put(comp_node); + dev_err(&pdev->dev, "Fail to get MMSYS node\n"); + continue; + } + + comp_idx = (enum mtk_vdec_hw_id)of_id->data; + mtk_v4l2_debug(4, "Get component:hw_id(%d),vdec_dev(0x%p),comp_node(0x%p)\n", + comp_idx, vdec_dev, comp_node); + vdec_dev->component_node[comp_idx] = comp_node; + + component_match_add_release(&pdev->dev, &match, mtk_vdec_release_of, + mtk_vdec_compare_of, comp_node); + } + + return match; +} + static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv) { struct mtk_vcodec_dev *dev = priv; @@ -95,6 +167,58 @@ static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev *dev) return 0; }
+static int mtk_vcodec_init_master(struct mtk_vcodec_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + struct component_match *match; + int ret; + + match = mtk_vcodec_match_add(dev); + if (IS_ERR_OR_NULL(match)) + return -EINVAL; + + ret = component_master_add_with_match(&pdev->dev, &mtk_vdec_ops, match); + if (ret < 0) + return ret; + + return 0; +} + +static int mtk_vcodec_init_dec_params(struct mtk_vcodec_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_comp_supported) { + dev->dec_irq = platform_get_irq(pdev, 0); + if (dev->dec_irq < 0) { + dev_err(&pdev->dev, "failed to get irq number"); + 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_pm(pdev, &dev->pm); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get mt vcodec clock source"); + return ret; + } + } + + return 0; +} + static int fops_vcodec_open(struct file *file) { struct mtk_vcodec_dev *dev = video_drvdata(file); @@ -220,7 +344,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev) { struct mtk_vcodec_dev *dev; struct video_device *vfd_dec; - struct resource *res; phandle rproc_phandle; enum mtk_vcodec_fw_type fw_type; int ret; @@ -249,32 +372,10 @@ static int mtk_vcodec_probe(struct platform_device *pdev) if (IS_ERR(dev->fw_handler)) return PTR_ERR(dev->fw_handler);
- ret = mtk_vcodec_init_dec_pm(dev->plat_dev, &dev->pm); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get mt vcodec clock source"); - goto err_dec_pm; - } - - ret = mtk_vcodec_get_reg_bases(dev); - if (ret) - goto err_res; - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (res == NULL) { - dev_err(&pdev->dev, "failed to get irq resource"); - ret = -ENOENT; - goto err_res; - } - - dev->dec_irq = platform_get_irq(pdev, 0); - 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); + ret = mtk_vcodec_init_dec_params(dev); if (ret) { - dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)", - dev->dec_irq, - ret); - goto err_res; + dev_err(&pdev->dev, "Failed to init pm and registers"); + goto err_dec_pm; }
mutex_init(&dev->dec_mutex); @@ -362,8 +463,14 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_v4l2_debug(0, "decoder registered as /dev/video%d", vfd_dec->num);
- return 0; + if (dev->vdec_pdata->is_comp_supported) { + ret = mtk_vcodec_init_master(dev); + if (ret < 0) + goto err_component_match; + }
+ return 0; +err_component_match: err_dec_reg: if (dev->vdec_pdata->uses_stateless_api) media_device_unregister(&dev->mdev_dec); @@ -382,6 +489,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_vcodec_release_dec_pm(&dev->pm); err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); + return ret; }
@@ -436,7 +544,25 @@ static struct platform_driver mtk_vcodec_dec_driver = { }, };
-module_platform_driver(mtk_vcodec_dec_driver); +static struct platform_driver * const mtk_vdec_drivers[] = { + &mtk_vdec_comp_driver, + &mtk_vcodec_dec_driver, +}; + +static int __init mtk_vdec_init(void) +{ + return platform_register_drivers(mtk_vdec_drivers, + ARRAY_SIZE(mtk_vdec_drivers)); +} + +static void __exit mtk_vdec_exit(void) +{ + platform_unregister_drivers(mtk_vdec_drivers, + ARRAY_SIZE(mtk_vdec_drivers)); +} + +module_init(mtk_vdec_init); +module_exit(mtk_vdec_exit);
MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver"); diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c new file mode 100644 index 000000000000..5e1b7670ba5b --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c @@ -0,0 +1,184 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Yunfei Dong yunfei.dong@mediatek.com + */ + +#include <linux/component.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/slab.h> + +#include "mtk_vcodec_drv.h" +#include "mtk_vcodec_dec.h" +#include "mtk_vcodec_dec_hw.h" +#include "mtk_vcodec_dec_pm.h" +#include "mtk_vcodec_intr.h" +#include "mtk_vcodec_util.h" + +static int mtk_vdec_comp_bind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev); + struct mtk_vcodec_dev *master_dev = data; + int i; + + for (i = 0; i < MTK_VDEC_HW_MAX; i++) { + if (dev->of_node != master_dev->component_node[i]) + continue; + + master_dev->comp_dev[i] = comp_dev; + comp_dev->comp_idx = i; + comp_dev->master_dev = master_dev; + break; + } + + if (i == MTK_VDEC_HW_MAX) { + dev_err(dev, "Failed to get component node\n"); + return -EINVAL; + } + + comp_dev->reg_base[VDEC_COMP_SYS] = + master_dev->reg_base[VDEC_COMP_SYS]; + return 0; +} + +static void mtk_vdec_comp_unbind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev); + + comp_dev->reg_base[VDEC_COMP_SYS] = NULL; +} + +static const struct component_ops mtk_vdec_hw_component_ops = { + .bind = mtk_vdec_comp_bind, + .unbind = mtk_vdec_comp_unbind, +}; + +static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void *priv) +{ + struct mtk_vdec_comp_dev *dev = priv; + struct mtk_vcodec_ctx *ctx; + u32 cg_status; + unsigned int dec_done_status; + void __iomem *vdec_misc_addr = dev->reg_base[VDEC_COMP_MISC] + + VDEC_IRQ_CFG_REG; + + ctx = mtk_vcodec_get_curr_ctx(dev->master_dev); + + /* check if HW active or not */ + cg_status = readl(dev->reg_base[VDEC_COMP_SYS]); + if ((cg_status & VDEC_HW_ACTIVE) != 0) { + mtk_v4l2_err("vdec active is not 0x0 (0x%08x)", + cg_status); + return IRQ_HANDLED; + } + + dec_done_status = readl(vdec_misc_addr); + if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) != + MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) + return IRQ_HANDLED; + + /* clear interrupt */ + writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr); + writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr); + + wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED); + + mtk_v4l2_debug(3, "wake up ctx %d, dec_done_status=%x", + ctx->id, dec_done_status); + + return IRQ_HANDLED; +} + +static int mtk_vdec_comp_init_irq(struct mtk_vdec_comp_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + int ret; + + dev->dec_irq = platform_get_irq(pdev, 0); + if (dev->dec_irq < 0) { + dev_err(&pdev->dev, "Failed to get irq resource"); + return dev->dec_irq; + } + + irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN); + ret = devm_request_irq(&pdev->dev, dev->dec_irq, + mtk_vdec_comp_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; + } + + return 0; +} + +static int mtk_vdec_comp_probe(struct platform_device *pdev) +{ + struct mtk_vdec_comp_dev *dev; + int ret; + + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + dev->plat_dev = pdev; + ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm); + if (ret) { + dev_err(&pdev->dev, "Failed to get mt vcodec clock source"); + return ret; + } + + dev->reg_base[VDEC_COMP_MISC] = + devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC])) { + ret = PTR_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC]); + goto err; + } + + if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL)) + dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34)); + + ret = mtk_vdec_comp_init_irq(dev); + if (ret) { + dev_err(&pdev->dev, "Failed to register irq handler.\n"); + goto err; + } + + platform_set_drvdata(pdev, dev); + + ret = component_add(&pdev->dev, &mtk_vdec_hw_component_ops); + if (ret) { + dev_err(&pdev->dev, "Failed to add component: %d\n", ret); + goto err; + } + + return 0; +err: + mtk_vcodec_release_dec_pm(&dev->pm); + return ret; +} + +static const struct of_device_id mtk_vdec_comp_ids[] = { + { + .compatible = "mediatek,mtk-vcodec-lat", + }, + { + .compatible = "mediatek,mtk-vcodec-core", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, mtk_vdec_comp_ids); + +struct platform_driver mtk_vdec_comp_driver = { + .probe = mtk_vdec_comp_probe, + .driver = { + .name = "mtk-vdec-comp", + .of_match_table = mtk_vdec_comp_ids, + }, +}; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h new file mode 100644 index 000000000000..8d6e818a3474 --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Yunfei Dong yunfei.dong@mediatek.com + */ + +#ifndef _MTK_VCODEC_DEC_HW_H_ +#define _MTK_VCODEC_DEC_HW_H_ + +#include <linux/io.h> +#include <linux/platform_device.h> + +#include "mtk_vcodec_drv.h" + +#define VDEC_HW_ACTIVE 0x10 +#define VDEC_IRQ_CFG 0x11 +#define VDEC_IRQ_CLR 0x10 +#define VDEC_IRQ_CFG_REG 0xa4 + +/** + * enum mtk_comp_hw_reg_idx - component register base index + */ +enum mtk_comp_hw_reg_idx { + VDEC_COMP_SYS, + VDEC_COMP_MISC, + VDEC_COMP_MAX +}; + +/** + * struct mtk_vdec_comp_dev - component framwork driver data + * @plat_dev: platform device + * @master_dev: master device + * @reg_base: Mapped address of MTK Vcodec registers. + * + * @dec_irq: decoder irq resource + * @pm: power management control + * @comp_idx: component index + */ +struct mtk_vdec_comp_dev { + struct platform_device *plat_dev; + struct mtk_vcodec_dev *master_dev; + void __iomem *reg_base[VDEC_COMP_MAX]; + + int dec_irq; + struct mtk_vcodec_pm pm; + int comp_idx; +}; + +#endif /* _MTK_VCODEC_DEC_HW_H_ */ diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c index 59c24b22ab6d..4f9a80ce15d8 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c @@ -623,4 +623,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata = { .num_framesizes = NUM_SUPPORTED_FRAMESIZE, .worker = mtk_vdec_worker, .flush_decoder = mtk_vdec_flush_decoder, + .is_comp_supported = false, }; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c index 8f4a1f0a0769..762633572b49 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c @@ -357,4 +357,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata = { .uses_stateless_api = true, .worker = mtk_vdec_worker, .flush_decoder = mtk_vdec_flush_decoder, + .is_comp_supported = false, }; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 973b0b3649c6..e530757a9b5a 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -93,6 +93,17 @@ enum mtk_fmt_type { MTK_FMT_FRAME = 2, };
+/** + * struct mtk_vdec_hw_id - Hardware index used to separate + * different hardware + */ +enum mtk_vdec_hw_id { + MTK_VDEC_CORE, + MTK_VDEC_LAT0, + MTK_VDEC_LAT1, + MTK_VDEC_HW_MAX, +}; + /* * struct mtk_video_fmt - Structure used to store information about pixelformats */ @@ -331,6 +342,7 @@ enum mtk_chip { * * @chip: chip this decoder is compatible with * + * @is_comp_supported: true: using compoent framework, false: not support * @uses_stateless_api: whether the decoder uses the stateless API with requests */
@@ -352,6 +364,7 @@ struct mtk_vcodec_dec_pdata {
enum mtk_chip chip;
+ bool is_comp_supported; bool uses_stateless_api; };
@@ -422,6 +435,9 @@ struct mtk_vcodec_enc_pdata { * @pm: power management control * @dec_capability: used to identify decode capability, ex: 4k * @enc_capability: used to identify encode capability + * + * @comp_dev: component hardware device + * @component_node: component node */ struct mtk_vcodec_dev { struct v4l2_device v4l2_dev; @@ -459,6 +475,9 @@ struct mtk_vcodec_dev { struct mtk_vcodec_pm pm; unsigned int dec_capability; unsigned int enc_capability; + + void *comp_dev[MTK_VDEC_HW_MAX]; + struct device_node *component_node[MTK_VDEC_HW_MAX]; };
static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)