| // SPDX-License-Identifier: (GPL-2.0+ OR MIT) |
| /* |
| * Copyright (c) 2019 Amlogic, Inc. All rights reserved. |
| */ |
| |
| /* Linux Headers */ |
| #include <linux/module.h> |
| #include <linux/printk.h> |
| #include <linux/amlogic/major.h> |
| #include <linux/platform_device.h> |
| #include <linux/time.h> |
| #include <linux/uaccess.h> |
| #include <linux/file.h> |
| #include <linux/dma-direction.h> |
| #include <linux/dma-buf.h> |
| #include <linux/ion.h> |
| |
| /* Amlogic Headers */ |
| #include <linux/meson_ion.h> |
| #include <linux/amlogic/media/vfm/vframe.h> |
| #include <linux/amlogic/media/vfm/vframe_provider.h> |
| #include <linux/amlogic/media/vfm/vframe_receiver.h> |
| #include <linux/amlogic/media/vfm/vfm_ext.h> |
| #include <linux/amlogic/media/canvas/canvas.h> |
| #include <linux/amlogic/media/canvas/canvas_mgr.h> |
| #include <linux/amlogic/media/vout/vinfo.h> |
| #include <linux/amlogic/media/vout/vout_notify.h> |
| #include <linux/amlogic/media/amvecm/amvecm.h> |
| |
| /* Local Headers */ |
| #include "video_priv.h" |
| #include "dummy_provider.h" |
| |
| static struct video_provider_device_s video_provider_device; |
| static struct vframe_provider_s vp_vfm_prov; |
| static struct vp_pool_s vp_pool[VP_VFM_POOL_SIZE]; |
| static s32 fill_ptr, get_ptr, put_ptr; |
| static int vp_canvas_table[VP_VFM_POOL_SIZE]; |
| static DEFINE_SPINLOCK(lock); |
| unsigned int dummy_video_log_level; |
| |
| #define INCPTR(p) ptr_wrap_inc(&(p)) |
| |
| static inline void ptr_wrap_inc(u32 *ptr) |
| { |
| u32 i = *ptr; |
| |
| i++; |
| if (i >= VP_VFM_POOL_SIZE) |
| i = 0; |
| *ptr = i; |
| } |
| |
| static inline u32 index2canvas(u32 index) |
| { |
| return vp_canvas_table[index]; |
| } |
| |
| static int has_unused_pool(void) |
| { |
| int i; |
| |
| for (i = 0; i < VP_VFM_POOL_SIZE; i++) { |
| if (vp_pool[i].used == 0) |
| return i; |
| } |
| return -1; |
| } |
| |
| static ssize_t log_level_show(struct class *cla, |
| struct class_attribute *attr, |
| char *buf) |
| { |
| return snprintf(buf, 40, "%d\n", dummy_video_log_level); |
| } |
| |
| static ssize_t log_level_store(struct class *cla, |
| struct class_attribute *attr, |
| const char *buf, size_t count) |
| { |
| int res = 0; |
| int ret = 0; |
| |
| ret = kstrtoint(buf, 0, &res); |
| if (ret) { |
| vp_err("kstrtoint err\n"); |
| return -EINVAL; |
| } |
| |
| vp_info("log_level: %d->%d\n", dummy_video_log_level, res); |
| dummy_video_log_level = res; |
| |
| return count; |
| } |
| |
| static CLASS_ATTR_RW(log_level); |
| |
| static struct attribute *video_provider_class_attrs[] = { |
| &class_attr_log_level.attr, |
| NULL |
| }; |
| ATTRIBUTE_GROUPS(video_provider_class); |
| |
| static struct class video_provider_class = { |
| .name = VIDEO_PROVIDER_NAME, |
| .class_groups = video_provider_class_groups, |
| }; |
| |
| static struct vframe_s *vp_vfm_peek(void *op_arg) |
| { |
| vp_dbg2("%s (%d).\n", __func__, get_ptr); |
| if (get_ptr == fill_ptr) |
| return NULL; |
| return &vp_pool[get_ptr].vfm; |
| } |
| |
| static struct vframe_s *vp_vfm_get(void *op_arg) |
| { |
| struct vframe_s *vf; |
| |
| vp_dbg2("%s (%d).\n", __func__, get_ptr); |
| |
| if (get_ptr == fill_ptr) |
| return NULL; |
| vf = &vp_pool[get_ptr].vfm; |
| INCPTR(get_ptr); |
| |
| return vf; |
| } |
| |
| static void vp_vfm_put(struct vframe_s *vf, void *op_arg) |
| { |
| int i; |
| int canvas_addr; |
| |
| vp_dbg2("%s.\n", __func__); |
| |
| if (!vf) |
| return; |
| INCPTR(put_ptr); |
| |
| if (put_ptr == fill_ptr) { |
| vp_info("buffer%d is being in use, skip\n", fill_ptr); |
| return; |
| } |
| |
| for (i = 0; i < VP_VFM_POOL_SIZE; i++) { |
| canvas_addr = index2canvas(i); |
| if (vf->canvas0Addr == (canvas_addr & 0xff)) { |
| vp_pool[i].used = 0; |
| vp_dbg("******recycle buffer index : %d ******\n", i); |
| } |
| } |
| } |
| |
| static int vp_event_cb(int type, void *data, void *private_data) |
| { |
| vp_dbg2("%s type(0x%x).\n", __func__, type); |
| |
| return 0; |
| } |
| |
| static int vp_vfm_states(struct vframe_states *states, void *op_arg) |
| { |
| int i; |
| unsigned long flags; |
| |
| vp_dbg2("%s.\n", __func__); |
| |
| if (!states) { |
| vp_err("vframe_states is NULL"); |
| return -EINVAL; |
| } |
| |
| spin_lock_irqsave(&lock, flags); |
| states->vf_pool_size = VP_VFM_POOL_SIZE; |
| i = fill_ptr - get_ptr; |
| if (i < 0) |
| i += VP_VFM_POOL_SIZE; |
| states->buf_avail_num = i; |
| spin_unlock_irqrestore(&lock, flags); |
| return 0; |
| } |
| |
| static const struct vframe_operations_s vp_vfm_ops = { |
| .peek = vp_vfm_peek, |
| .get = vp_vfm_get, |
| .put = vp_vfm_put, |
| .event_cb = vp_event_cb, |
| .vf_states = vp_vfm_states, |
| }; |
| |
| static void video_provider_release_path(void) |
| { |
| vf_unreg_provider(&vp_vfm_prov); |
| vfm_map_remove(VP_VFPATH_ID); |
| } |
| |
| static int video_provider_creat_path(void) |
| { |
| int ret = -1; |
| char path_id[] = VP_VFPATH_ID; |
| char path_chain[] = VP_VFPATH_CHAIN; |
| |
| if (vfm_map_add(path_id, path_chain) < 0) { |
| vp_err("video_provider map creation failed\n"); |
| return -ENOMEM; |
| } |
| |
| vf_provider_init(&vp_vfm_prov, VIDEO_PROVIDER_NAME, |
| &vp_vfm_ops, NULL); |
| ret = vf_reg_provider(&vp_vfm_prov); |
| if (ret < 0) |
| vp_info("vfm path is aleady created\n"); |
| ret = vf_notify_receiver(VIDEO_PROVIDER_NAME, |
| VFRAME_EVENT_PROVIDER_START, NULL); |
| if (ret < 0) { |
| vp_err("notify receiver error\n"); |
| video_provider_release_path(); |
| } |
| |
| return ret; |
| } |
| |
| static int canvas_table_alloc(void) |
| { |
| int i; |
| |
| for (i = 0; i < VP_VFM_POOL_SIZE; i++) { |
| if (vp_canvas_table[i]) |
| break; |
| } |
| |
| /* alloc 2 * VP_VFM_POOL_SIZE for multi planes */ |
| if (i == VP_VFM_POOL_SIZE) { |
| u32 canvas_table[VP_VFM_POOL_SIZE * 2]; |
| |
| if (canvas_pool_alloc_canvas_table("video_provider", |
| canvas_table, |
| VP_VFM_POOL_SIZE * 2, |
| CANVAS_MAP_TYPE_1)) { |
| pr_err("%s allocate canvas error.\n", __func__); |
| return -ENOMEM; |
| } |
| for (i = 0; i < VP_VFM_POOL_SIZE; i++) |
| vp_canvas_table[i] = (canvas_table[2 * i] | |
| (canvas_table[2 * i + 1] << 8)); |
| } else { |
| vp_info("canvas_table is already alloced"); |
| } |
| |
| return 0; |
| } |
| |
| static void canvas_table_release(void) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(vp_canvas_table); i++) { |
| if (vp_canvas_table[i]) { |
| if (vp_canvas_table[i] & 0xff) |
| canvas_pool_map_free_canvas |
| (vp_canvas_table[i] & 0xff); |
| if ((vp_canvas_table[i] >> 8) & 0xff) |
| canvas_pool_map_free_canvas |
| ((vp_canvas_table[i] >> 8) & 0xff); |
| if ((vp_canvas_table[i] >> 16) & 0xff) |
| canvas_pool_map_free_canvas |
| ((vp_canvas_table[i] >> 16) & 0xff); |
| } |
| vp_canvas_table[i] = 0; |
| } |
| } |
| |
| static int video_provider_open(struct inode *inode, struct file *file) |
| { |
| int ret = -1; |
| |
| _video_set_disable(VIDEO_DISABLE_FORNEXT); |
| |
| ret = video_provider_creat_path(); |
| if (ret < 0) { |
| vp_err("video_provider_creat_path failed\n"); |
| return -ENOMEM; |
| } |
| |
| ret = canvas_table_alloc(); |
| if (ret < 0) |
| return ret; |
| |
| fill_ptr = 0; |
| get_ptr = 0; |
| put_ptr = 0; |
| |
| return 0; |
| } |
| |
| static int vp_dma_buf_get_phys(int fd, unsigned long *addr) |
| { |
| long ret = -1; |
| struct dma_buf *dbuf = NULL; |
| struct dma_buf_attachment *d_att = NULL; |
| struct sg_table *sg = NULL; |
| struct device *dev = video_provider_device.dev; |
| enum dma_data_direction dir = DMA_TO_DEVICE; |
| struct page *page; |
| |
| if (fd < 0 || !dev) { |
| vp_err("error input param or dev is null\n"); |
| return -EINVAL; |
| } |
| |
| dbuf = dma_buf_get(fd); |
| if (IS_ERR(dbuf)) { |
| vp_err("failed to get dma buffer\n"); |
| return -EINVAL; |
| } |
| |
| d_att = dma_buf_attach(dbuf, dev); |
| if (IS_ERR(d_att)) { |
| vp_err("failed to set dma attach\n"); |
| ret = -EINVAL; |
| goto attach_err; |
| } |
| |
| sg = dma_buf_map_attachment(d_att, dir); |
| if (IS_ERR(sg)) { |
| vp_err("failed to get dma sg\n"); |
| ret = -EINVAL; |
| goto map_attach_err; |
| } else { |
| page = sg_page(sg->sgl); |
| *addr = PFN_PHYS(page_to_pfn(page)); |
| ret = 0; |
| } |
| |
| dma_buf_unmap_attachment(d_att, sg, dir); |
| |
| map_attach_err: |
| dma_buf_detach(dbuf, d_att); |
| |
| attach_err: |
| dma_buf_put(dbuf); |
| |
| return ret; |
| } |
| |
| static int get_fram_phyaddr(struct vp_frame_s *frame_info, unsigned long *addr) |
| { |
| int ret = -1; |
| size_t len = 0; |
| |
| if (!frame_info || !addr) { |
| vp_err("%s-%d frame_info is NULL\n", __func__, __LINE__); |
| return -EINVAL; |
| } |
| |
| switch (frame_info->mem_type) { |
| case VP_MEM_ION: |
| ret = meson_ion_share_fd_to_phys(frame_info->shared_fd, |
| (phys_addr_t *)addr, &len); |
| if (ret != 0) |
| return ret; |
| vp_dbg("ion frame addr 0x%lx, len %zu\n", *addr, len); |
| break; |
| case VP_MEM_DMABUF: |
| ret = vp_dma_buf_get_phys(frame_info->shared_fd, addr); |
| if (ret != 0) |
| return ret; |
| vp_dbg("dma frame addr 0x%lx, len %zu\n", *addr, len); |
| break; |
| default: |
| vp_info("%s-%d mem type error\n", __func__, __LINE__); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int set_vfm_type(struct vp_frame_s *frame_info, |
| struct vframe_s *vf, int *bpp) |
| { |
| if (!frame_info || !vf || !bpp) { |
| vp_info("%s-%d vf error\n", __func__, __LINE__); |
| return -EINVAL; |
| } |
| switch (frame_info->format) { |
| case VP_FMT_NV21: |
| vf->type = VIDTYPE_PROGRESSIVE | VIDTYPE_VIU_FIELD | |
| VIDTYPE_VIU_NV21; |
| *bpp = 8; |
| break; |
| case VP_FMT_NV12: |
| vf->type = VIDTYPE_PROGRESSIVE | VIDTYPE_VIU_FIELD | |
| VIDTYPE_VIU_NV12; |
| *bpp = 8; |
| break; |
| case VP_FMT_RGB888: |
| *bpp = 24; |
| vf->type = VIDTYPE_VIU_444 | VIDTYPE_VIU_SINGLE_PLANE | |
| VIDTYPE_VIU_FIELD; |
| break; |
| case VP_FMT_YUV444_PACKED: |
| vf->type = VIDTYPE_VIU_444 | VIDTYPE_VIU_SINGLE_PLANE | |
| VIDTYPE_VIU_FIELD; |
| *bpp = 24; |
| break; |
| default: |
| vp_info("%s-%d vf error\n", __func__, __LINE__); |
| return -EINVAL; |
| } |
| switch (frame_info->endian) { |
| case VP_BIG_ENDIAN: |
| vf->flag &= ~VFRAME_FLAG_VIDEO_LINEAR; |
| break; |
| case VP_LITTLE_ENDIAN: |
| vf->flag |= VFRAME_FLAG_VIDEO_LINEAR; |
| break; |
| default: |
| vp_info("%s-%d vf error\n", __func__, __LINE__); |
| return -EINVAL; |
| } |
| |
| video_provider_device.vinfo = get_current_vinfo(); |
| |
| /* indicate the vframe is a limited range frame */ |
| vf->signal_type = |
| (1 << 29) /* video available */ |
| | (5 << 26) /* unspecified */ |
| | (0 << 25) /* limited */ |
| | (1 << 24); /* color available */ |
| if (video_provider_device.vinfo->width >= 1280 && |
| video_provider_device.vinfo->height >= 720) { |
| /* >= 720p, use 709 */ |
| vf->signal_type |= |
| (1 << 16) /* bt709 */ |
| | (1 << 8) /* bt709 */ |
| | (1 << 0); /* bt709 */ |
| } else { |
| /* < 720p, use 709 */ |
| vf->signal_type |= |
| (3 << 16) /* bt601 */ |
| | (3 << 8) /* bt601 */ |
| | (3 << 0); /* bt601 */ |
| } |
| |
| return 0; |
| } |
| |
| static int set_vfm_info_from_frame(struct vp_frame_s *frame_info) |
| { |
| int ret = -1; |
| int index; |
| unsigned long addr = 0; |
| struct vframe_s *new_vf; |
| int bpp; |
| unsigned int canvas_width; |
| |
| index = has_unused_pool(); |
| if (index < 0) { |
| vp_info("no buffer available, need post ASAP\n"); |
| return -ENOMEM; |
| } |
| memset(&vp_pool[fill_ptr], 0, sizeof(struct vp_pool_s)); |
| |
| ret = get_fram_phyaddr(frame_info, &addr); |
| if (ret < 0) |
| return ret; |
| |
| new_vf = &vp_pool[fill_ptr].vfm; |
| ret = set_vfm_type(frame_info, new_vf, &bpp); |
| if (ret < 0) |
| return ret; |
| vp_dbg("vf type val=0x%x\n", new_vf->type); |
| |
| /* 256bit align, then calc bytes*/ |
| canvas_width = ((frame_info->width * bpp + 0xff) & ~0xff) / 8; |
| vp_dbg("canvas_width val=%u\n", canvas_width); |
| |
| switch (frame_info->format) { |
| case VP_FMT_NV21: |
| case VP_FMT_NV12: |
| canvas_config(vp_canvas_table[fill_ptr] & 0xff, |
| addr, |
| canvas_width, frame_info->height, |
| CANVAS_ADDR_NOWRAP, CANVAS_BLKMODE_LINEAR); |
| addr += canvas_width * frame_info->height; |
| canvas_config((vp_canvas_table[fill_ptr] >> 8) & 0xff, |
| addr, |
| canvas_width, frame_info->height / 2, |
| CANVAS_ADDR_NOWRAP, CANVAS_BLKMODE_LINEAR); |
| new_vf->canvas0Addr = vp_canvas_table[fill_ptr]; |
| break; |
| case VP_FMT_RGB888: |
| case VP_FMT_YUV444_PACKED: |
| canvas_config(vp_canvas_table[fill_ptr] & 0xff, |
| addr, |
| canvas_width, frame_info->height, |
| CANVAS_ADDR_NOWRAP, CANVAS_BLKMODE_LINEAR); |
| new_vf->canvas0Addr = vp_canvas_table[fill_ptr] & 0xff; |
| break; |
| default: |
| vp_err("unsupported format to canvas_config\n"); |
| return -EINVAL; |
| } |
| new_vf->width = frame_info->width; |
| new_vf->height = frame_info->height; |
| new_vf->index = fill_ptr; |
| new_vf->duration_pulldown = 0; |
| new_vf->pts = 0; |
| new_vf->pts_us64 = 0; |
| new_vf->ratio_control = 0; |
| |
| INCPTR(fill_ptr); |
| |
| return 0; |
| } |
| |
| static void post_frame(void) |
| { |
| vf_notify_receiver(VIDEO_PROVIDER_NAME, |
| VFRAME_EVENT_PROVIDER_VFRAME_READY, |
| NULL); |
| } |
| |
| static long video_provider_ioctl(struct file *filp, unsigned int cmd, |
| unsigned long args) |
| { |
| long ret = 0; |
| void __user *argp = (void __user *)args; |
| struct vp_frame_s frame_info; |
| |
| switch (cmd) { |
| case VIDEO_PROVIDER_IOCTL_RENDER: |
| if (!copy_from_user(&frame_info, argp, sizeof(frame_info))) { |
| vp_dbg("render: canvas index 0x%x\n", |
| vp_canvas_table[fill_ptr]); |
| vp_dbg(" frame format: %d\n", frame_info.format); |
| vp_dbg(" frame width: %d\n", frame_info.width); |
| vp_dbg(" frame height: %d\n", frame_info.height); |
| vp_dbg(" frame mem_type: %d\n", frame_info.mem_type); |
| vp_dbg("frame shared_fd: %d\n", frame_info.shared_fd); |
| vp_dbg(" frame endian: %d\n", frame_info.endian); |
| ret = set_vfm_info_from_frame(&frame_info); |
| } else { |
| ret = -EINVAL; |
| } |
| break; |
| case VIDEO_PROVIDER_IOCTL_POST: |
| vp_dbg("post: canvas index 0x%x\n", vp_canvas_table[get_ptr]); |
| post_frame(); |
| break; |
| default: |
| vp_err("%s-%d, para err\n", __func__, __LINE__); |
| ret = -EINVAL; |
| } |
| return ret; |
| } |
| |
| static int video_provider_release(struct inode *inode, struct file *file) |
| { |
| video_provider_release_path(); |
| canvas_table_release(); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_COMPAT |
| static long video_provider_compat_ioctl(struct file *filp, unsigned int cmd, |
| unsigned long args) |
| { |
| long ret = 0; |
| |
| ret = video_provider_ioctl(filp, cmd, (ulong)compat_ptr(args)); |
| return ret; |
| } |
| #endif |
| |
| static const struct file_operations video_provider_fops = { |
| .owner = THIS_MODULE, |
| .open = video_provider_open, |
| .unlocked_ioctl = video_provider_ioctl, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = video_provider_compat_ioctl, |
| #endif |
| .release = video_provider_release, |
| }; |
| |
| static int video_provider_probe(struct platform_device *pdev) |
| { |
| int ret = 0; |
| |
| strcpy(video_provider_device.name, VIDEO_PROVIDER_NAME); |
| ret = register_chrdev(0, video_provider_device.name, |
| &video_provider_fops); |
| if (ret <= 0) { |
| vp_err("register video provider device error\n"); |
| return ret; |
| } |
| video_provider_device.major = ret; |
| vp_info("video provider major:%d\n", ret); |
| ret = class_register(&video_provider_class); |
| if (ret < 0) { |
| vp_err("error create video provider class\n"); |
| return ret; |
| } |
| video_provider_device.cla = &video_provider_class; |
| video_provider_device.dev = device_create(video_provider_device.cla, |
| NULL, MKDEV(video_provider_device.major, |
| 0), NULL, video_provider_device.name); |
| if (IS_ERR(video_provider_device.dev)) { |
| vp_err("create video provider device error\n"); |
| class_unregister(video_provider_device.cla); |
| return -1; |
| } |
| |
| return ret; |
| } |
| |
| static int video_provider_remove(struct platform_device *pdev) |
| { |
| vp_info("%s\n", __func__); |
| if (!video_provider_device.cla) |
| return 0; |
| |
| if (video_provider_device.dev) |
| device_destroy(video_provider_device.cla, |
| MKDEV(video_provider_device.major, 0)); |
| class_unregister(video_provider_device.cla); |
| unregister_chrdev(video_provider_device.major, |
| video_provider_device.name); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id amlogic_video_provider_dt_match[] = { |
| { |
| .compatible = "amlogic, dummy_video_provider", |
| }, |
| {}, |
| }; |
| |
| static struct platform_driver video_provider_drv = { |
| .probe = video_provider_probe, |
| .remove = video_provider_remove, |
| .driver = { |
| .name = "video_provider", |
| .owner = THIS_MODULE, |
| .of_match_table = amlogic_video_provider_dt_match, |
| } |
| }; |
| |
| static int __init video_provider_init_module(void) |
| { |
| vp_info("%s\n", __func__); |
| |
| if (platform_driver_register(&video_provider_drv)) { |
| pr_err("Failed to register video provider driver error\n"); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| static void __exit video_provider_remove_module(void) |
| { |
| platform_driver_unregister(&video_provider_drv); |
| vp_info("video provider module removed.\n"); |
| } |
| |
| module_init(video_provider_init_module); |
| module_exit(video_provider_remove_module); |
| |
| MODULE_DESCRIPTION("Amlogic dummy video provider driver"); |
| MODULE_LICENSE("GPL"); |