1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright 2020-2021 NXP 4 */ 5 6 #ifndef _AMPHION_VPU_H 7 #define _AMPHION_VPU_H 8 9 #include <media/v4l2-device.h> 10 #include <media/v4l2-ctrls.h> 11 #include <media/v4l2-mem2mem.h> 12 #include <linux/mailbox_client.h> 13 #include <linux/mailbox_controller.h> 14 #include <linux/kfifo.h> 15 16 #define VPU_TIMEOUT_WAKEUP msecs_to_jiffies(200) 17 #define VPU_TIMEOUT msecs_to_jiffies(1000) 18 #define VPU_INST_NULL_ID (-1L) 19 #define VPU_MSG_BUFFER_SIZE (8192) 20 21 enum imx_plat_type { 22 IMX8QXP = 0, 23 IMX8QM = 1, 24 IMX8DM, 25 IMX8DX, 26 PLAT_TYPE_RESERVED 27 }; 28 29 enum vpu_core_type { 30 VPU_CORE_TYPE_ENC = 0, 31 VPU_CORE_TYPE_DEC = 0x10, 32 }; 33 34 struct vpu_dev; 35 struct vpu_resources { 36 enum imx_plat_type plat_type; 37 u32 mreg_base; 38 int (*setup)(struct vpu_dev *vpu); 39 int (*setup_encoder)(struct vpu_dev *vpu); 40 int (*setup_decoder)(struct vpu_dev *vpu); 41 int (*reset)(struct vpu_dev *vpu); 42 }; 43 44 struct vpu_buffer { 45 void *virt; 46 dma_addr_t phys; 47 u32 length; 48 u32 bytesused; 49 struct device *dev; 50 }; 51 52 struct vpu_func { 53 struct video_device *vfd; 54 struct v4l2_m2m_dev *m2m_dev; 55 enum vpu_core_type type; 56 int function; 57 }; 58 59 struct vpu_dev { 60 void __iomem *base; 61 struct platform_device *pdev; 62 struct device *dev; 63 struct mutex lock; /* protect vpu device */ 64 const struct vpu_resources *res; 65 struct list_head cores; 66 67 struct v4l2_device v4l2_dev; 68 struct vpu_func encoder; 69 struct vpu_func decoder; 70 struct media_device mdev; 71 72 struct delayed_work watchdog_work; 73 void (*get_vpu)(struct vpu_dev *vpu); 74 void (*put_vpu)(struct vpu_dev *vpu); 75 void (*get_enc)(struct vpu_dev *vpu); 76 void (*put_enc)(struct vpu_dev *vpu); 77 void (*get_dec)(struct vpu_dev *vpu); 78 void (*put_dec)(struct vpu_dev *vpu); 79 atomic_t ref_vpu; 80 atomic_t ref_enc; 81 atomic_t ref_dec; 82 83 struct dentry *debugfs; 84 }; 85 86 struct vpu_format { 87 u32 pixfmt; 88 u32 mem_planes; 89 u32 comp_planes; 90 u32 type; 91 u32 flags; 92 u32 width; 93 u32 height; 94 u32 sizeimage[VIDEO_MAX_PLANES]; 95 u32 bytesperline[VIDEO_MAX_PLANES]; 96 u32 field; 97 u32 sibling; 98 }; 99 100 struct vpu_core_resources { 101 enum vpu_core_type type; 102 const char *fwname; 103 u32 stride; 104 u32 max_width; 105 u32 min_width; 106 u32 step_width; 107 u32 max_height; 108 u32 min_height; 109 u32 step_height; 110 u32 rpc_size; 111 u32 fwlog_size; 112 u32 act_size; 113 }; 114 115 struct vpu_mbox { 116 char name[20]; 117 struct mbox_client cl; 118 struct mbox_chan *ch; 119 bool block; 120 }; 121 122 enum vpu_core_state { 123 VPU_CORE_DEINIT = 0, 124 VPU_CORE_ACTIVE, 125 VPU_CORE_HANG 126 }; 127 128 struct vpu_core { 129 void __iomem *base; 130 struct platform_device *pdev; 131 struct device *dev; 132 struct device *parent; 133 struct device *pd; 134 struct device_link *pd_link; 135 struct mutex lock; /* protect vpu core */ 136 struct mutex cmd_lock; /* Lock vpu command */ 137 struct list_head list; 138 enum vpu_core_type type; 139 int id; 140 const struct vpu_core_resources *res; 141 unsigned long instance_mask; 142 u32 supported_instance_count; 143 unsigned long hang_mask; 144 u32 request_count; 145 struct list_head instances; 146 enum vpu_core_state state; 147 u32 fw_version; 148 149 struct vpu_buffer fw; 150 struct vpu_buffer rpc; 151 struct vpu_buffer log; 152 struct vpu_buffer act; 153 154 struct vpu_mbox tx_type; 155 struct vpu_mbox tx_data; 156 struct vpu_mbox rx; 157 158 wait_queue_head_t ack_wq; 159 struct completion cmp; 160 struct workqueue_struct *workqueue; 161 struct work_struct msg_work; 162 struct delayed_work msg_delayed_work; 163 struct kfifo msg_fifo; 164 void *msg_buffer; 165 unsigned int msg_buffer_size; 166 167 struct vpu_dev *vpu; 168 void *iface; 169 170 struct dentry *debugfs; 171 struct dentry *debugfs_fwlog; 172 }; 173 174 enum vpu_codec_state { 175 VPU_CODEC_STATE_DEINIT = 1, 176 VPU_CODEC_STATE_CONFIGURED, 177 VPU_CODEC_STATE_START, 178 VPU_CODEC_STATE_STARTED, 179 VPU_CODEC_STATE_ACTIVE, 180 VPU_CODEC_STATE_SEEK, 181 VPU_CODEC_STATE_STOP, 182 VPU_CODEC_STATE_DRAIN, 183 VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE, 184 }; 185 186 struct vpu_frame_info { 187 u32 type; 188 u32 id; 189 u32 sequence; 190 u32 luma; 191 u32 chroma_u; 192 u32 chroma_v; 193 u32 data_offset; 194 u32 flags; 195 u32 skipped; 196 s64 timestamp; 197 }; 198 199 struct vpu_inst; 200 struct vpu_inst_ops { 201 int (*ctrl_init)(struct vpu_inst *inst); 202 int (*start)(struct vpu_inst *inst, u32 type); 203 int (*stop)(struct vpu_inst *inst, u32 type); 204 int (*abort)(struct vpu_inst *inst); 205 bool (*check_ready)(struct vpu_inst *inst, unsigned int type); 206 void (*buf_done)(struct vpu_inst *inst, struct vpu_frame_info *frame); 207 void (*event_notify)(struct vpu_inst *inst, u32 event, void *data); 208 void (*release)(struct vpu_inst *inst); 209 void (*cleanup)(struct vpu_inst *inst); 210 void (*mem_request)(struct vpu_inst *inst, 211 u32 enc_frame_size, 212 u32 enc_frame_num, 213 u32 ref_frame_size, 214 u32 ref_frame_num, 215 u32 act_frame_size, 216 u32 act_frame_num); 217 void (*input_done)(struct vpu_inst *inst); 218 void (*stop_done)(struct vpu_inst *inst); 219 int (*process_output)(struct vpu_inst *inst, struct vb2_buffer *vb); 220 int (*process_capture)(struct vpu_inst *inst, struct vb2_buffer *vb); 221 int (*get_one_frame)(struct vpu_inst *inst, void *info); 222 void (*on_queue_empty)(struct vpu_inst *inst, u32 type); 223 int (*get_debug_info)(struct vpu_inst *inst, char *str, u32 size, u32 i); 224 void (*wait_prepare)(struct vpu_inst *inst); 225 void (*wait_finish)(struct vpu_inst *inst); 226 }; 227 228 struct vpu_inst { 229 struct list_head list; 230 struct mutex lock; /* v4l2 and videobuf2 lock */ 231 struct vpu_dev *vpu; 232 struct vpu_core *core; 233 struct device *dev; 234 int id; 235 236 struct v4l2_fh fh; 237 struct v4l2_ctrl_handler ctrl_handler; 238 atomic_t ref_count; 239 int (*release)(struct vpu_inst *inst); 240 241 enum vpu_codec_state state; 242 enum vpu_core_type type; 243 244 struct workqueue_struct *workqueue; 245 struct work_struct msg_work; 246 struct kfifo msg_fifo; 247 u8 msg_buffer[VPU_MSG_BUFFER_SIZE]; 248 249 struct vpu_buffer stream_buffer; 250 bool use_stream_buffer; 251 struct vpu_buffer act; 252 253 struct list_head cmd_q; 254 void *pending; 255 unsigned long cmd_seq; 256 atomic_long_t last_response_cmd; 257 258 struct vpu_inst_ops *ops; 259 const struct vpu_format *formats; 260 struct vpu_format out_format; 261 struct vpu_format cap_format; 262 u32 min_buffer_cap; 263 u32 min_buffer_out; 264 u32 total_input_count; 265 266 struct v4l2_rect crop; 267 u32 colorspace; 268 u8 ycbcr_enc; 269 u8 quantization; 270 u8 xfer_func; 271 u32 sequence; 272 u32 extra_size; 273 274 u32 flows[16]; 275 u32 flow_idx; 276 277 pid_t pid; 278 pid_t tgid; 279 struct dentry *debugfs; 280 281 void *priv; 282 }; 283 284 #define call_vop(inst, op, args...) \ 285 ((inst)->ops->op ? (inst)->ops->op(inst, ##args) : 0) \ 286 287 #define call_void_vop(inst, op, args...) \ 288 do { \ 289 if ((inst)->ops->op) \ 290 (inst)->ops->op(inst, ##args); \ 291 } while (0) 292 293 enum { 294 VPU_BUF_STATE_IDLE = 0, 295 VPU_BUF_STATE_INUSE, 296 VPU_BUF_STATE_DECODED, 297 VPU_BUF_STATE_READY, 298 VPU_BUF_STATE_SKIP, 299 VPU_BUF_STATE_ERROR 300 }; 301 302 struct vpu_vb2_buffer { 303 struct v4l2_m2m_buffer m2m_buf; 304 dma_addr_t luma; 305 dma_addr_t chroma_u; 306 dma_addr_t chroma_v; 307 unsigned int state; 308 u32 tag; 309 }; 310 311 void vpu_writel(struct vpu_dev *vpu, u32 reg, u32 val); 312 u32 vpu_readl(struct vpu_dev *vpu, u32 reg); 313 314 static inline struct vpu_vb2_buffer *to_vpu_vb2_buffer(struct vb2_v4l2_buffer *vbuf) 315 { 316 struct v4l2_m2m_buffer *m2m_buf = container_of(vbuf, struct v4l2_m2m_buffer, vb); 317 318 return container_of(m2m_buf, struct vpu_vb2_buffer, m2m_buf); 319 } 320 321 static inline const char *vpu_core_type_desc(enum vpu_core_type type) 322 { 323 return type == VPU_CORE_TYPE_ENC ? "encoder" : "decoder"; 324 } 325 326 static inline struct vpu_inst *to_inst(struct file *filp) 327 { 328 return container_of(filp->private_data, struct vpu_inst, fh); 329 } 330 331 #define ctrl_to_inst(ctrl) \ 332 container_of((ctrl)->handler, struct vpu_inst, ctrl_handler) 333 334 const struct v4l2_ioctl_ops *venc_get_ioctl_ops(void); 335 const struct v4l2_file_operations *venc_get_fops(void); 336 const struct v4l2_ioctl_ops *vdec_get_ioctl_ops(void); 337 const struct v4l2_file_operations *vdec_get_fops(void); 338 339 int vpu_add_func(struct vpu_dev *vpu, struct vpu_func *func); 340 void vpu_remove_func(struct vpu_func *func); 341 342 struct vpu_inst *vpu_inst_get(struct vpu_inst *inst); 343 void vpu_inst_put(struct vpu_inst *inst); 344 struct vpu_core *vpu_request_core(struct vpu_dev *vpu, enum vpu_core_type type); 345 void vpu_release_core(struct vpu_core *core); 346 int vpu_inst_register(struct vpu_inst *inst); 347 int vpu_inst_unregister(struct vpu_inst *inst); 348 const struct vpu_core_resources *vpu_get_resource(struct vpu_inst *inst); 349 350 int vpu_inst_create_dbgfs_file(struct vpu_inst *inst); 351 int vpu_inst_remove_dbgfs_file(struct vpu_inst *inst); 352 int vpu_core_create_dbgfs_file(struct vpu_core *core); 353 int vpu_core_remove_dbgfs_file(struct vpu_core *core); 354 void vpu_inst_record_flow(struct vpu_inst *inst, u32 flow); 355 356 int vpu_core_driver_init(void); 357 void vpu_core_driver_exit(void); 358 359 const char *vpu_id_name(u32 id); 360 const char *vpu_codec_state_name(enum vpu_codec_state state); 361 362 extern bool debug; 363 #define vpu_trace(dev, fmt, arg...) \ 364 do { \ 365 if (debug) \ 366 dev_info(dev, "%s: " fmt, __func__, ## arg); \ 367 } while (0) 368 369 #endif 370