Tiffany Lin | 4e855a6 | 2016-05-03 07:11:24 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 MediaTek Inc. |
| 3 | * Author: PC Chen <pc.chen@mediatek.com> |
| 4 | * Tiffany Lin <tiffany.lin@mediatek.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | #ifndef _MTK_VCODEC_DRV_H_ |
| 17 | #define _MTK_VCODEC_DRV_H_ |
| 18 | |
| 19 | #include <linux/platform_device.h> |
| 20 | #include <linux/videodev2.h> |
| 21 | #include <media/v4l2-ctrls.h> |
| 22 | #include <media/v4l2-device.h> |
| 23 | #include <media/v4l2-ioctl.h> |
| 24 | #include <media/videobuf2-core.h> |
| 25 | |
Tiffany Lin | 4e855a6 | 2016-05-03 07:11:24 -0300 | [diff] [blame] | 26 | |
| 27 | #define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv" |
| 28 | #define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc" |
| 29 | #define MTK_PLATFORM_STR "platform:mt8173" |
| 30 | |
| 31 | |
| 32 | #define MTK_VCODEC_MAX_PLANES 3 |
| 33 | #define MTK_V4L2_BENCHMARK 0 |
| 34 | #define WAIT_INTR_TIMEOUT_MS 1000 |
| 35 | |
| 36 | /** |
| 37 | * enum mtk_hw_reg_idx - MTK hw register base index |
| 38 | */ |
| 39 | enum mtk_hw_reg_idx { |
| 40 | VDEC_SYS, |
| 41 | VDEC_MISC, |
| 42 | VDEC_LD, |
| 43 | VDEC_TOP, |
| 44 | VDEC_CM, |
| 45 | VDEC_AD, |
| 46 | VDEC_AV, |
| 47 | VDEC_PP, |
| 48 | VDEC_HWD, |
| 49 | VDEC_HWQ, |
| 50 | VDEC_HWB, |
| 51 | VDEC_HWG, |
| 52 | NUM_MAX_VDEC_REG_BASE, |
| 53 | /* h264 encoder */ |
| 54 | VENC_SYS = NUM_MAX_VDEC_REG_BASE, |
| 55 | /* vp8 encoder */ |
| 56 | VENC_LT_SYS, |
| 57 | NUM_MAX_VCODEC_REG_BASE |
| 58 | }; |
| 59 | |
| 60 | /** |
| 61 | * enum mtk_instance_type - The type of an MTK Vcodec instance. |
| 62 | */ |
| 63 | enum mtk_instance_type { |
| 64 | MTK_INST_DECODER = 0, |
| 65 | MTK_INST_ENCODER = 1, |
| 66 | }; |
| 67 | |
| 68 | /** |
| 69 | * enum mtk_instance_state - The state of an MTK Vcodec instance. |
| 70 | * @MTK_STATE_FREE - default state when instance is created |
| 71 | * @MTK_STATE_INIT - vcodec instance is initialized |
| 72 | * @MTK_STATE_HEADER - vdec had sps/pps header parsed or venc |
| 73 | * had sps/pps header encoded |
| 74 | * @MTK_STATE_FLUSH - vdec is flushing. Only used by decoder |
| 75 | * @MTK_STATE_ABORT - vcodec should be aborted |
| 76 | */ |
| 77 | enum mtk_instance_state { |
| 78 | MTK_STATE_FREE = 0, |
| 79 | MTK_STATE_INIT = 1, |
| 80 | MTK_STATE_HEADER = 2, |
| 81 | MTK_STATE_FLUSH = 3, |
| 82 | MTK_STATE_ABORT = 4, |
| 83 | }; |
| 84 | |
| 85 | /** |
| 86 | * struct mtk_encode_param - General encoding parameters type |
| 87 | */ |
| 88 | enum mtk_encode_param { |
| 89 | MTK_ENCODE_PARAM_NONE = 0, |
| 90 | MTK_ENCODE_PARAM_BITRATE = (1 << 0), |
| 91 | MTK_ENCODE_PARAM_FRAMERATE = (1 << 1), |
| 92 | MTK_ENCODE_PARAM_INTRA_PERIOD = (1 << 2), |
| 93 | MTK_ENCODE_PARAM_FORCE_INTRA = (1 << 3), |
| 94 | MTK_ENCODE_PARAM_GOP_SIZE = (1 << 4), |
| 95 | }; |
| 96 | |
| 97 | enum mtk_fmt_type { |
| 98 | MTK_FMT_DEC = 0, |
| 99 | MTK_FMT_ENC = 1, |
| 100 | MTK_FMT_FRAME = 2, |
| 101 | }; |
| 102 | |
| 103 | /** |
| 104 | * struct mtk_video_fmt - Structure used to store information about pixelformats |
| 105 | */ |
| 106 | struct mtk_video_fmt { |
| 107 | u32 fourcc; |
| 108 | enum mtk_fmt_type type; |
| 109 | u32 num_planes; |
| 110 | }; |
| 111 | |
| 112 | /** |
| 113 | * struct mtk_codec_framesizes - Structure used to store information about |
| 114 | * framesizes |
| 115 | */ |
| 116 | struct mtk_codec_framesizes { |
| 117 | u32 fourcc; |
| 118 | struct v4l2_frmsize_stepwise stepwise; |
| 119 | }; |
| 120 | |
| 121 | /** |
| 122 | * struct mtk_q_type - Type of queue |
| 123 | */ |
| 124 | enum mtk_q_type { |
| 125 | MTK_Q_DATA_SRC = 0, |
| 126 | MTK_Q_DATA_DST = 1, |
| 127 | }; |
| 128 | |
| 129 | /** |
| 130 | * struct mtk_q_data - Structure used to store information about queue |
| 131 | */ |
| 132 | struct mtk_q_data { |
| 133 | unsigned int visible_width; |
| 134 | unsigned int visible_height; |
| 135 | unsigned int coded_width; |
| 136 | unsigned int coded_height; |
| 137 | enum v4l2_field field; |
| 138 | unsigned int bytesperline[MTK_VCODEC_MAX_PLANES]; |
| 139 | unsigned int sizeimage[MTK_VCODEC_MAX_PLANES]; |
| 140 | struct mtk_video_fmt *fmt; |
| 141 | }; |
| 142 | |
| 143 | /** |
| 144 | * struct mtk_enc_params - General encoding parameters |
| 145 | * @bitrate: target bitrate in bits per second |
| 146 | * @num_b_frame: number of b frames between p-frame |
| 147 | * @rc_frame: frame based rate control |
| 148 | * @rc_mb: macroblock based rate control |
| 149 | * @seq_hdr_mode: H.264 sequence header is encoded separately or joined |
| 150 | * with the first frame |
| 151 | * @intra_period: I frame period |
| 152 | * @gop_size: group of picture size, it's used as the intra frame period |
| 153 | * @framerate_num: frame rate numerator. ex: framerate_num=30 and |
| 154 | * framerate_denom=1 menas FPS is 30 |
| 155 | * @framerate_denom: frame rate denominator. ex: framerate_num=30 and |
| 156 | * framerate_denom=1 menas FPS is 30 |
| 157 | * @h264_max_qp: Max value for H.264 quantization parameter |
| 158 | * @h264_profile: V4L2 defined H.264 profile |
| 159 | * @h264_level: V4L2 defined H.264 level |
| 160 | * @force_intra: force/insert intra frame |
| 161 | */ |
| 162 | struct mtk_enc_params { |
| 163 | unsigned int bitrate; |
| 164 | unsigned int num_b_frame; |
| 165 | unsigned int rc_frame; |
| 166 | unsigned int rc_mb; |
| 167 | unsigned int seq_hdr_mode; |
| 168 | unsigned int intra_period; |
| 169 | unsigned int gop_size; |
| 170 | unsigned int framerate_num; |
| 171 | unsigned int framerate_denom; |
| 172 | unsigned int h264_max_qp; |
| 173 | unsigned int h264_profile; |
| 174 | unsigned int h264_level; |
| 175 | unsigned int force_intra; |
| 176 | }; |
| 177 | |
| 178 | /** |
| 179 | * struct mtk_vcodec_pm - Power management data structure |
| 180 | */ |
| 181 | struct mtk_vcodec_pm { |
| 182 | struct clk *vcodecpll; |
| 183 | struct clk *univpll_d2; |
| 184 | struct clk *clk_cci400_sel; |
| 185 | struct clk *vdecpll; |
| 186 | struct clk *vdec_sel; |
| 187 | struct clk *vencpll_d2; |
| 188 | struct clk *venc_sel; |
| 189 | struct clk *univpll1_d2; |
| 190 | struct clk *venc_lt_sel; |
| 191 | struct device *larbvdec; |
| 192 | struct device *larbvenc; |
| 193 | struct device *larbvenclt; |
| 194 | struct device *dev; |
| 195 | struct mtk_vcodec_dev *mtkdev; |
| 196 | }; |
| 197 | |
| 198 | /** |
| 199 | * struct mtk_vcodec_ctx - Context (instance) private data. |
| 200 | * |
| 201 | * @type: type of the instance - decoder or encoder |
| 202 | * @dev: pointer to the mtk_vcodec_dev of the device |
| 203 | * @list: link to ctx_list of mtk_vcodec_dev |
| 204 | * @fh: struct v4l2_fh |
| 205 | * @m2m_ctx: pointer to the v4l2_m2m_ctx of the context |
| 206 | * @q_data: store information of input and output queue |
| 207 | * of the context |
| 208 | * @id: index of the context that this structure describes |
| 209 | * @state: state of the context |
| 210 | * @param_change: indicate encode parameter type |
| 211 | * @enc_params: encoding parameters |
| 212 | * @enc_if: hoooked encoder driver interface |
| 213 | * @drv_handle: driver handle for specific decode/encode instance |
| 214 | * |
| 215 | * @int_cond: variable used by the waitqueue |
| 216 | * @int_type: type of the last interrupt |
| 217 | * @queue: waitqueue that can be used to wait for this context to |
| 218 | * finish |
| 219 | * @irq_status: irq status |
| 220 | * |
| 221 | * @ctrl_hdl: handler for v4l2 framework |
| 222 | * @encode_work: worker for the encoding |
| 223 | * |
| 224 | * @colorspace: enum v4l2_colorspace; supplemental to pixelformat |
| 225 | * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding |
| 226 | * @quantization: enum v4l2_quantization, colorspace quantization |
| 227 | * @xfer_func: enum v4l2_xfer_func, colorspace transfer function |
| 228 | */ |
| 229 | struct mtk_vcodec_ctx { |
| 230 | enum mtk_instance_type type; |
| 231 | struct mtk_vcodec_dev *dev; |
| 232 | struct list_head list; |
| 233 | |
| 234 | struct v4l2_fh fh; |
| 235 | struct v4l2_m2m_ctx *m2m_ctx; |
| 236 | struct mtk_q_data q_data[2]; |
| 237 | int id; |
| 238 | enum mtk_instance_state state; |
| 239 | enum mtk_encode_param param_change; |
| 240 | struct mtk_enc_params enc_params; |
| 241 | |
| 242 | struct venc_common_if *enc_if; |
| 243 | unsigned long drv_handle; |
| 244 | |
| 245 | int int_cond; |
| 246 | int int_type; |
| 247 | wait_queue_head_t queue; |
| 248 | unsigned int irq_status; |
| 249 | |
| 250 | struct v4l2_ctrl_handler ctrl_hdl; |
| 251 | struct work_struct encode_work; |
| 252 | |
| 253 | enum v4l2_colorspace colorspace; |
| 254 | enum v4l2_ycbcr_encoding ycbcr_enc; |
| 255 | enum v4l2_quantization quantization; |
| 256 | enum v4l2_xfer_func xfer_func; |
| 257 | }; |
| 258 | |
| 259 | /** |
| 260 | * struct mtk_vcodec_dev - driver data |
| 261 | * @v4l2_dev: V4L2 device to register video devices for. |
| 262 | * @vfd_enc: Video device for encoder. |
| 263 | * |
| 264 | * @m2m_dev_enc: m2m device for encoder. |
| 265 | * @plat_dev: platform device |
| 266 | * @vpu_plat_dev: mtk vpu platform device |
Tiffany Lin | 4e855a6 | 2016-05-03 07:11:24 -0300 | [diff] [blame] | 267 | * @ctx_list: list of struct mtk_vcodec_ctx |
| 268 | * @irqlock: protect data access by irq handler and work thread |
| 269 | * @curr_ctx: The context that is waiting for codec hardware |
| 270 | * |
| 271 | * @reg_base: Mapped address of MTK Vcodec registers. |
| 272 | * |
| 273 | * @id_counter: used to identify current opened instance |
| 274 | * @num_instances: counter of active MTK Vcodec instances |
| 275 | * |
| 276 | * @encode_workqueue: encode work queue |
| 277 | * |
| 278 | * @int_cond: used to identify interrupt condition happen |
| 279 | * @int_type: used to identify what kind of interrupt condition happen |
| 280 | * @dev_mutex: video_device lock |
| 281 | * @queue: waitqueue for waiting for completion of device commands |
| 282 | * |
| 283 | * @enc_irq: h264 encoder irq resource |
| 284 | * @enc_lt_irq: vp8 encoder irq resource |
| 285 | * |
| 286 | * @enc_mutex: encoder hardware lock. |
| 287 | * |
| 288 | * @pm: power management control |
| 289 | * @dec_capability: used to identify decode capability, ex: 4k |
| 290 | * @enc_capability: used to identify encode capability |
| 291 | */ |
| 292 | struct mtk_vcodec_dev { |
| 293 | struct v4l2_device v4l2_dev; |
| 294 | struct video_device *vfd_enc; |
| 295 | |
| 296 | struct v4l2_m2m_dev *m2m_dev_enc; |
| 297 | struct platform_device *plat_dev; |
| 298 | struct platform_device *vpu_plat_dev; |
Tiffany Lin | 4e855a6 | 2016-05-03 07:11:24 -0300 | [diff] [blame] | 299 | struct list_head ctx_list; |
| 300 | spinlock_t irqlock; |
| 301 | struct mtk_vcodec_ctx *curr_ctx; |
| 302 | void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE]; |
| 303 | |
| 304 | unsigned long id_counter; |
| 305 | int num_instances; |
| 306 | |
| 307 | struct workqueue_struct *encode_workqueue; |
| 308 | |
| 309 | int int_cond; |
| 310 | int int_type; |
| 311 | struct mutex dev_mutex; |
| 312 | wait_queue_head_t queue; |
| 313 | |
| 314 | int enc_irq; |
| 315 | int enc_lt_irq; |
| 316 | |
| 317 | struct mutex enc_mutex; |
| 318 | |
| 319 | struct mtk_vcodec_pm pm; |
| 320 | unsigned int dec_capability; |
| 321 | unsigned int enc_capability; |
| 322 | }; |
| 323 | |
| 324 | static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh) |
| 325 | { |
| 326 | return container_of(fh, struct mtk_vcodec_ctx, fh); |
| 327 | } |
| 328 | |
| 329 | static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl) |
| 330 | { |
| 331 | return container_of(ctrl->handler, struct mtk_vcodec_ctx, ctrl_hdl); |
| 332 | } |
| 333 | |
| 334 | #endif /* _MTK_VCODEC_DRV_H_ */ |