release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/dream/qdsp5/adsp_videoenc_verify_cmd.c

   1 /* arch/arm/mach-msm/qdsp5/adsp_video_verify_cmd.c
   2  *
   3  * Verificion code for aDSP VENC packets from userspace.
   4  *
   5  * Copyright (c) 2008 QUALCOMM Incorporated
   6  * Copyright (C) 2008 Google, Inc.
   7  *
   8  * This software is licensed under the terms of the GNU General Public
   9  * License version 2, as published by the Free Software Foundation, and
  10  * may be copied, distributed, and modified under those terms.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18 #include <linux/io.h>
  19
  20 #define ADSP_DEBUG_MSGS 0
  21 #if ADSP_DEBUG_MSGS
  22 #define DLOG(fmt,args...) \
  23         do { printk(KERN_INFO "[%s:%s:%d] "fmt, __FILE__, __func__, __LINE__, \
  24              ##args); } \
  25         while (0)
  26 #else
  27 #define DLOG(x...) do {} while (0)
  28 #endif
  29
  30 #include <mach/qdsp5/qdsp5venccmdi.h>
  31 #include "adsp.h"
  32
  33
  34 static unsigned short x_dimension, y_dimension;
  35
  36 static inline void *high_low_short_to_ptr(unsigned short high,
  37                                           unsigned short low)
  38 {
  39         return (void *)((((unsigned long)high) << 16) | ((unsigned long)low));
  40 }
  41
  42 static inline void ptr_to_high_low_short(void *ptr, unsigned short *high,
  43                                          unsigned short *low)
  44 {
  45         *high = (unsigned short)((((unsigned long)ptr) >> 16) & 0xffff);
  46         *low = (unsigned short)((unsigned long)ptr & 0xffff);
  47 }
  48
  49 static int pmem_fixup_high_low(unsigned short *high,
  50                                 unsigned short *low,
  51                                 unsigned short size_high,
  52                                 unsigned short size_low,
  53                                 struct msm_adsp_module *module,
  54                                 unsigned long *addr, unsigned long *size)
  55 {
  56         void *phys_addr;
  57         unsigned long phys_size;
  58         unsigned long kvaddr;
  59
  60         phys_addr = high_low_short_to_ptr(*high, *low);
  61         phys_size = (unsigned long)high_low_short_to_ptr(size_high, size_low);
  62         DLOG("virt %x %x\n", phys_addr, phys_size);
  63         if (adsp_pmem_fixup_kvaddr(module, &phys_addr, &kvaddr, phys_size)) {
  64                 DLOG("ah%x al%x sh%x sl%x addr %x size %x\n",
  65                         *high, *low, size_high, size_low, phys_addr, phys_size);
  66                 return -1;
  67         }
  68         ptr_to_high_low_short(phys_addr, high, low);
  69         DLOG("phys %x %x\n", phys_addr, phys_size);
  70         if (addr)
  71                 *addr = kvaddr;
  72         if (size)
  73                 *size = phys_size;
  74         return 0;
  75 }
  76
  77 static int verify_venc_cmd(struct msm_adsp_module *module,
  78                                void *cmd_data, size_t cmd_size)
  79 {
  80         unsigned short cmd_id = ((unsigned short *)cmd_data)[0];
  81         unsigned long frame_buf_size, luma_buf_size, chroma_buf_size;
  82         unsigned short frame_buf_size_high, frame_buf_size_low;
  83         unsigned short luma_buf_size_high, luma_buf_size_low;
  84         unsigned short chroma_buf_size_high, chroma_buf_size_low;
  85         videnc_cmd_cfg *config_cmd;
  86         videnc_cmd_frame_start *frame_cmd;
  87         videnc_cmd_dis *dis_cmd;
  88
  89         DLOG("cmd_size %d cmd_id %d cmd_data %x\n", cmd_size, cmd_id, cmd_data);
  90         switch (cmd_id) {
  91         case VIDENC_CMD_ACTIVE:
  92                 if (cmd_size < sizeof(videnc_cmd_active))
  93                         return -1;
  94                 break;
  95         case VIDENC_CMD_IDLE:
  96                 if (cmd_size < sizeof(videnc_cmd_idle))
  97                         return -1;
  98                 x_dimension = y_dimension = 0;
  99                 break;
 100         case VIDENC_CMD_STATUS_QUERY:
 101                 if (cmd_size < sizeof(videnc_cmd_status_query))
 102                         return -1;
 103                 break;
 104         case VIDENC_CMD_RC_CFG:
 105                 if (cmd_size < sizeof(videnc_cmd_rc_cfg))
 106                         return -1;
 107                 break;
 108         case VIDENC_CMD_INTRA_REFRESH:
 109                 if (cmd_size < sizeof(videnc_cmd_intra_refresh))
 110                         return -1;
 111                 break;
 112         case VIDENC_CMD_DIGITAL_ZOOM:
 113                 if (cmd_size < sizeof(videnc_cmd_digital_zoom))
 114                         return -1;
 115                 break;
 116         case VIDENC_CMD_DIS_CFG:
 117                 if (cmd_size < sizeof(videnc_cmd_dis_cfg))
 118                         return -1;
 119                 break;
 120         case VIDENC_CMD_CFG:
 121                 if (cmd_size < sizeof(videnc_cmd_cfg))
 122                         return -1;
 123                 config_cmd = (videnc_cmd_cfg *)cmd_data;
 124                 x_dimension = ((config_cmd->venc_frame_dim) & 0xFF00)>>8;
 125                 x_dimension = x_dimension*16;
 126                 y_dimension = (config_cmd->venc_frame_dim) & 0xFF;
 127                 y_dimension = y_dimension * 16;
 128                 break;
 129         case VIDENC_CMD_FRAME_START:
 130                 if (cmd_size < sizeof(videnc_cmd_frame_start))
 131                         return -1;
 132                 frame_cmd = (videnc_cmd_frame_start *)cmd_data;
 133                 luma_buf_size = x_dimension * y_dimension;
 134                 chroma_buf_size = luma_buf_size>>1;
 135                 frame_buf_size = luma_buf_size + chroma_buf_size;
 136                 ptr_to_high_low_short((void *)luma_buf_size,
 137                               &luma_buf_size_high,
 138                               &luma_buf_size_low);
 139                 ptr_to_high_low_short((void *)chroma_buf_size,
 140                               &chroma_buf_size_high,
 141                               &chroma_buf_size_low);
 142                 ptr_to_high_low_short((void *)frame_buf_size,
 143                               &frame_buf_size_high,
 144                               &frame_buf_size_low);
 145                 /* Address of raw Y data. */
 146                 if (pmem_fixup_high_low(&frame_cmd->input_luma_addr_high,
 147                                         &frame_cmd->input_luma_addr_low,
 148                                         luma_buf_size_high,
 149                                         luma_buf_size_low,
 150                                         module,
 151                                         NULL, NULL))
 152                         return -1;
 153                 /* Address of raw CbCr data */
 154                 if (pmem_fixup_high_low(&frame_cmd->input_chroma_addr_high,
 155                                         &frame_cmd->input_chroma_addr_low,
 156                                         chroma_buf_size_high,
 157                                         chroma_buf_size_low,
 158                                         module,
 159                                         NULL, NULL))
 160                         return -1;
 161                 /* Reference VOP */
 162                 if (pmem_fixup_high_low(&frame_cmd->ref_vop_buf_ptr_high,
 163                                         &frame_cmd->ref_vop_buf_ptr_low,
 164                                         frame_buf_size_high,
 165                                         frame_buf_size_low,
 166                                         module,
 167                                         NULL, NULL))
 168                         return -1;
 169                 /* Encoded Packet Address */
 170                 if (pmem_fixup_high_low(&frame_cmd->enc_pkt_buf_ptr_high,
 171                                         &frame_cmd->enc_pkt_buf_ptr_low,
 172                                         frame_cmd->enc_pkt_buf_size_high,
 173                                         frame_cmd->enc_pkt_buf_size_low,
 174                                         module,
 175                                         NULL, NULL))
 176                         return -1;
 177                 /* Unfiltered VOP Buffer Address */
 178                 if (pmem_fixup_high_low(
 179                                 &frame_cmd->unfilt_recon_vop_buf_ptr_high,
 180                                 &frame_cmd->unfilt_recon_vop_buf_ptr_low,
 181                                 frame_buf_size_high,
 182                                 frame_buf_size_low,
 183                                 module,
 184                                 NULL, NULL))
 185                         return -1;
 186                 /* Filtered VOP Buffer Address */
 187                 if (pmem_fixup_high_low(&frame_cmd->filt_recon_vop_buf_ptr_high,
 188                                         &frame_cmd->filt_recon_vop_buf_ptr_low,
 189                                         frame_buf_size_high,
 190                                         frame_buf_size_low,
 191                                         module,
 192                                         NULL, NULL))
 193                         return -1;
 194                 break;
 195         case VIDENC_CMD_DIS:
 196                 if (cmd_size < sizeof(videnc_cmd_dis))
 197                         return -1;
 198                 dis_cmd = (videnc_cmd_dis *)cmd_data;
 199                 luma_buf_size = x_dimension * y_dimension;
 200                 ptr_to_high_low_short((void *)luma_buf_size,
 201                               &luma_buf_size_high,
 202                               &luma_buf_size_low);
 203                 /* Prev VFE Luma Output Address */
 204                 if (pmem_fixup_high_low(&dis_cmd->vfe_out_prev_luma_addr_high,
 205                                         &dis_cmd->vfe_out_prev_luma_addr_low,
 206                                         luma_buf_size_high,
 207                                         luma_buf_size_low,
 208                                         module,
 209                                         NULL, NULL))
 210                         return -1;
 211                 break;
 212         default:
 213                 printk(KERN_INFO "adsp_video:unknown encoder video command %u\n",
 214                         cmd_id);
 215                 return 0;
 216         }
 217
 218         return 0;
 219 }
 220
 221
 222 int adsp_videoenc_verify_cmd(struct msm_adsp_module *module,
 223                          unsigned int queue_id, void *cmd_data,
 224                          size_t cmd_size)
 225 {
 226         switch (queue_id) {
 227         case QDSP_mpuVEncCmdQueue:
 228                 DLOG("\n");
 229                 return verify_venc_cmd(module, cmd_data, cmd_size);
 230         default:
 231                 printk(KERN_INFO "unknown video queue %u\n", queue_id);
 232                 return 0;
 233         }
 234 }