drivers/staging/media/hantro/rk3399_vpu_hw.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Hantro VPU codec driver
   4  *
   5  * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
   6  *      Jeffy Chen <jeffy.chen@rock-chips.com>
   7  */
   8
   9 #include <linux/clk.h>
  10
  11 #include "hantro.h"
  12 #include "hantro_jpeg.h"
  13 #include "rk3399_vpu_regs.h"
  14
  15 #define RK3399_ACLK_MAX_FREQ (400 * 1000 * 1000)
  16
  17 /*
  18  * Supported formats.
  19  */
  20
  21 static const struct hantro_fmt rk3399_vpu_enc_fmts[] = {
  22         {
  23                 .fourcc = V4L2_PIX_FMT_YUV420M,
  24                 .codec_mode = HANTRO_MODE_NONE,
  25                 .enc_fmt = RK3288_VPU_ENC_FMT_YUV420P,
  26         },
  27         {
  28                 .fourcc = V4L2_PIX_FMT_NV12M,
  29                 .codec_mode = HANTRO_MODE_NONE,
  30                 .enc_fmt = RK3288_VPU_ENC_FMT_YUV420SP,
  31         },
  32         {
  33                 .fourcc = V4L2_PIX_FMT_YUYV,
  34                 .codec_mode = HANTRO_MODE_NONE,
  35                 .enc_fmt = RK3288_VPU_ENC_FMT_YUYV422,
  36         },
  37         {
  38                 .fourcc = V4L2_PIX_FMT_UYVY,
  39                 .codec_mode = HANTRO_MODE_NONE,
  40                 .enc_fmt = RK3288_VPU_ENC_FMT_UYVY422,
  41         },
  42         {
  43                 .fourcc = V4L2_PIX_FMT_JPEG,
  44                 .codec_mode = HANTRO_MODE_JPEG_ENC,
  45                 .max_depth = 2,
  46                 .header_size = JPEG_HEADER_SIZE,
  47                 .frmsize = {
  48                         .min_width = 96,
  49                         .max_width = 8192,
  50                         .step_width = MB_DIM,
  51                         .min_height = 32,
  52                         .max_height = 8192,
  53                         .step_height = MB_DIM,
  54                 },
  55         },
  56 };
  57
  58 static const struct hantro_fmt rk3399_vpu_dec_fmts[] = {
  59         {
  60                 .fourcc = V4L2_PIX_FMT_NV12,
  61                 .codec_mode = HANTRO_MODE_NONE,
  62         },
  63         {
  64                 .fourcc = V4L2_PIX_FMT_MPEG2_SLICE,
  65                 .codec_mode = HANTRO_MODE_MPEG2_DEC,
  66                 .max_depth = 2,
  67                 .frmsize = {
  68                         .min_width = 48,
  69                         .max_width = 1920,
  70                         .step_width = MB_DIM,
  71                         .min_height = 48,
  72                         .max_height = 1088,
  73                         .step_height = MB_DIM,
  74                 },
  75         },
  76         {
  77                 .fourcc = V4L2_PIX_FMT_VP8_FRAME,
  78                 .codec_mode = HANTRO_MODE_VP8_DEC,
  79                 .max_depth = 2,
  80                 .frmsize = {
  81                         .min_width = 48,
  82                         .max_width = 3840,
  83                         .step_width = MB_DIM,
  84                         .min_height = 48,
  85                         .max_height = 2160,
  86                         .step_height = MB_DIM,
  87                 },
  88         },
  89 };
  90
  91 static irqreturn_t rk3399_vepu_irq(int irq, void *dev_id)
  92 {
  93         struct hantro_dev *vpu = dev_id;
  94         enum vb2_buffer_state state;
  95         u32 status, bytesused;
  96
  97         status = vepu_read(vpu, VEPU_REG_INTERRUPT);
  98         bytesused = vepu_read(vpu, VEPU_REG_STR_BUF_LIMIT) / 8;
  99         state = (status & VEPU_REG_INTERRUPT_FRAME_READY) ?
 100                 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
 101
 102         vepu_write(vpu, 0, VEPU_REG_INTERRUPT);
 103         vepu_write(vpu, 0, VEPU_REG_AXI_CTRL);
 104
 105         hantro_irq_done(vpu, bytesused, state);
 106
 107         return IRQ_HANDLED;
 108 }
 109
 110 static irqreturn_t rk3399_vdpu_irq(int irq, void *dev_id)
 111 {
 112         struct hantro_dev *vpu = dev_id;
 113         enum vb2_buffer_state state;
 114         u32 status;
 115
 116         status = vdpu_read(vpu, VDPU_REG_INTERRUPT);
 117         state = (status & VDPU_REG_INTERRUPT_DEC_IRQ) ?
 118                 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
 119
 120         vdpu_write(vpu, 0, VDPU_REG_INTERRUPT);
 121         vdpu_write(vpu, 0, VDPU_REG_AXI_CTRL);
 122
 123         hantro_irq_done(vpu, 0, state);
 124
 125         return IRQ_HANDLED;
 126 }
 127
 128 static int rk3399_vpu_hw_init(struct hantro_dev *vpu)
 129 {
 130         /* Bump ACLK to max. possible freq. to improve performance. */
 131         clk_set_rate(vpu->clocks[0].clk, RK3399_ACLK_MAX_FREQ);
 132         return 0;
 133 }
 134
 135 static void rk3399_vpu_enc_reset(struct hantro_ctx *ctx)
 136 {
 137         struct hantro_dev *vpu = ctx->dev;
 138
 139         vepu_write(vpu, VEPU_REG_INTERRUPT_DIS_BIT, VEPU_REG_INTERRUPT);
 140         vepu_write(vpu, 0, VEPU_REG_ENCODE_START);
 141         vepu_write(vpu, 0, VEPU_REG_AXI_CTRL);
 142 }
 143
 144 static void rk3399_vpu_dec_reset(struct hantro_ctx *ctx)
 145 {
 146         struct hantro_dev *vpu = ctx->dev;
 147
 148         vdpu_write(vpu, VDPU_REG_INTERRUPT_DEC_IRQ_DIS, VDPU_REG_INTERRUPT);
 149         vdpu_write(vpu, 0, VDPU_REG_EN_FLAGS);
 150         vdpu_write(vpu, 1, VDPU_REG_SOFT_RESET);
 151 }
 152
 153 /*
 154  * Supported codec ops.
 155  */
 156
 157 static const struct hantro_codec_ops rk3399_vpu_codec_ops[] = {
 158         [HANTRO_MODE_JPEG_ENC] = {
 159                 .run = rk3399_vpu_jpeg_enc_run,
 160                 .reset = rk3399_vpu_enc_reset,
 161                 .init = hantro_jpeg_enc_init,
 162                 .exit = hantro_jpeg_enc_exit,
 163         },
 164         [HANTRO_MODE_MPEG2_DEC] = {
 165                 .run = rk3399_vpu_mpeg2_dec_run,
 166                 .reset = rk3399_vpu_dec_reset,
 167                 .init = hantro_mpeg2_dec_init,
 168                 .exit = hantro_mpeg2_dec_exit,
 169         },
 170         [HANTRO_MODE_VP8_DEC] = {
 171                 .run = rk3399_vpu_vp8_dec_run,
 172                 .reset = rk3399_vpu_dec_reset,
 173                 .init = hantro_vp8_dec_init,
 174                 .exit = hantro_vp8_dec_exit,
 175         },
 176 };
 177
 178 /*
 179  * VPU variant.
 180  */
 181
 182 static const struct hantro_irq rk3399_irqs[] = {
 183         { "vepu", rk3399_vepu_irq },
 184         { "vdpu", rk3399_vdpu_irq },
 185 };
 186
 187 static const char * const rk3399_clk_names[] = {
 188         "aclk", "hclk"
 189 };
 190
 191 const struct hantro_variant rk3399_vpu_variant = {
 192         .enc_offset = 0x0,
 193         .enc_fmts = rk3399_vpu_enc_fmts,
 194         .num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),
 195         .dec_offset = 0x400,
 196         .dec_fmts = rk3399_vpu_dec_fmts,
 197         .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
 198         .codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |
 199                  HANTRO_VP8_DECODER,
 200         .codec_ops = rk3399_vpu_codec_ops,
 201         .irqs = rk3399_irqs,
 202         .num_irqs = ARRAY_SIZE(rk3399_irqs),
 203         .init = rk3399_vpu_hw_init,
 204         .clk_names = rk3399_clk_names,
 205         .num_clocks = ARRAY_SIZE(rk3399_clk_names)
 206 };
 207
 208 static const struct hantro_irq rk3328_irqs[] = {
 209         { "vdpu", rk3399_vdpu_irq },
 210 };
 211
 212 const struct hantro_variant rk3328_vpu_variant = {
 213         .dec_offset = 0x400,
 214         .dec_fmts = rk3399_vpu_dec_fmts,
 215         .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
 216         .codec = HANTRO_MPEG2_DECODER | HANTRO_VP8_DECODER,
 217         .codec_ops = rk3399_vpu_codec_ops,
 218         .irqs = rk3328_irqs,
 219         .num_irqs = ARRAY_SIZE(rk3328_irqs),
 220         .init = rk3399_vpu_hw_init,
 221         .clk_names = rk3399_clk_names,
 222         .num_clocks = ARRAY_SIZE(rk3399_clk_names),
 223 };