drivers/media/pci/cx18/cx18-scb.h

   1 /*
   2  *  cx18 System Control Block initialization
   3  *
   4  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   5  *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  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  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  20  *  02111-1307  USA
  21  */
  22
  23 #ifndef CX18_SCB_H
  24 #define CX18_SCB_H
  25
  26 #include "cx18-mailbox.h"
  27
  28 /* NOTE: All ACK interrupts are in the SW2 register.  All non-ACK interrupts
  29    are in the SW1 register. */
  30
  31 #define IRQ_APU_TO_CPU         0x00000001
  32 #define IRQ_CPU_TO_APU_ACK     0x00000001
  33 #define IRQ_HPU_TO_CPU         0x00000002
  34 #define IRQ_CPU_TO_HPU_ACK     0x00000002
  35 #define IRQ_PPU_TO_CPU         0x00000004
  36 #define IRQ_CPU_TO_PPU_ACK     0x00000004
  37 #define IRQ_EPU_TO_CPU         0x00000008
  38 #define IRQ_CPU_TO_EPU_ACK     0x00000008
  39
  40 #define IRQ_CPU_TO_APU         0x00000010
  41 #define IRQ_APU_TO_CPU_ACK     0x00000010
  42 #define IRQ_HPU_TO_APU         0x00000020
  43 #define IRQ_APU_TO_HPU_ACK     0x00000020
  44 #define IRQ_PPU_TO_APU         0x00000040
  45 #define IRQ_APU_TO_PPU_ACK     0x00000040
  46 #define IRQ_EPU_TO_APU         0x00000080
  47 #define IRQ_APU_TO_EPU_ACK     0x00000080
  48
  49 #define IRQ_CPU_TO_HPU         0x00000100
  50 #define IRQ_HPU_TO_CPU_ACK     0x00000100
  51 #define IRQ_APU_TO_HPU         0x00000200
  52 #define IRQ_HPU_TO_APU_ACK     0x00000200
  53 #define IRQ_PPU_TO_HPU         0x00000400
  54 #define IRQ_HPU_TO_PPU_ACK     0x00000400
  55 #define IRQ_EPU_TO_HPU         0x00000800
  56 #define IRQ_HPU_TO_EPU_ACK     0x00000800
  57
  58 #define IRQ_CPU_TO_PPU         0x00001000
  59 #define IRQ_PPU_TO_CPU_ACK     0x00001000
  60 #define IRQ_APU_TO_PPU         0x00002000
  61 #define IRQ_PPU_TO_APU_ACK     0x00002000
  62 #define IRQ_HPU_TO_PPU         0x00004000
  63 #define IRQ_PPU_TO_HPU_ACK     0x00004000
  64 #define IRQ_EPU_TO_PPU         0x00008000
  65 #define IRQ_PPU_TO_EPU_ACK     0x00008000
  66
  67 #define IRQ_CPU_TO_EPU         0x00010000
  68 #define IRQ_EPU_TO_CPU_ACK     0x00010000
  69 #define IRQ_APU_TO_EPU         0x00020000
  70 #define IRQ_EPU_TO_APU_ACK     0x00020000
  71 #define IRQ_HPU_TO_EPU         0x00040000
  72 #define IRQ_EPU_TO_HPU_ACK     0x00040000
  73 #define IRQ_PPU_TO_EPU         0x00080000
  74 #define IRQ_EPU_TO_PPU_ACK     0x00080000
  75
  76 #define SCB_OFFSET  0xDC0000
  77
  78 /* If Firmware uses fixed memory map, it shall not allocate the area
  79    between SCB_OFFSET and SCB_OFFSET+SCB_RESERVED_SIZE-1 inclusive */
  80 #define SCB_RESERVED_SIZE 0x10000
  81
  82
  83 /* This structure is used by EPU to provide memory descriptors in its memory */
  84 struct cx18_mdl_ent {
  85     u32 paddr;  /* Physical address of a buffer segment */
  86     u32 length; /* Length of the buffer segment */
  87 };
  88
  89 struct cx18_scb {
  90         /* These fields form the System Control Block which is used at boot time
  91            for localizing the IPC data as well as the code positions for all
  92            processors. The offsets are from the start of this struct. */
  93
  94         /* Offset where to find the Inter-Processor Communication data */
  95         u32 ipc_offset;
  96         u32 reserved01[7];
  97         /* Offset where to find the start of the CPU code */
  98         u32 cpu_code_offset;
  99         u32 reserved02[3];
 100         /* Offset where to find the start of the APU code */
 101         u32 apu_code_offset;
 102         u32 reserved03[3];
 103         /* Offset where to find the start of the HPU code */
 104         u32 hpu_code_offset;
 105         u32 reserved04[3];
 106         /* Offset where to find the start of the PPU code */
 107         u32 ppu_code_offset;
 108         u32 reserved05[3];
 109
 110         /* These fields form Inter-Processor Communication data which is used
 111            by all processors to locate the information needed for communicating
 112            with other processors */
 113
 114         /* Fields for CPU: */
 115
 116         /* bit 0: 1/0 processor ready/not ready. Set other bits to 0. */
 117         u32 cpu_state;
 118         u32 reserved1[7];
 119         /* Offset to the mailbox used for sending commands from APU to CPU */
 120         u32 apu2cpu_mb_offset;
 121         /* Value to write to register SW1 register set (0xC7003100) after the
 122            command is ready */
 123         u32 apu2cpu_irq;
 124         /* Value to write to register SW2 register set (0xC7003140) after the
 125            command is cleared */
 126         u32 cpu2apu_irq_ack;
 127         u32 reserved2[13];
 128
 129         u32 hpu2cpu_mb_offset;
 130         u32 hpu2cpu_irq;
 131         u32 cpu2hpu_irq_ack;
 132         u32 reserved3[13];
 133
 134         u32 ppu2cpu_mb_offset;
 135         u32 ppu2cpu_irq;
 136         u32 cpu2ppu_irq_ack;
 137         u32 reserved4[13];
 138
 139         u32 epu2cpu_mb_offset;
 140         u32 epu2cpu_irq;
 141         u32 cpu2epu_irq_ack;
 142         u32 reserved5[13];
 143         u32 reserved6[8];
 144
 145         /* Fields for APU: */
 146
 147         u32 apu_state;
 148         u32 reserved11[7];
 149         u32 cpu2apu_mb_offset;
 150         u32 cpu2apu_irq;
 151         u32 apu2cpu_irq_ack;
 152         u32 reserved12[13];
 153
 154         u32 hpu2apu_mb_offset;
 155         u32 hpu2apu_irq;
 156         u32 apu2hpu_irq_ack;
 157         u32 reserved13[13];
 158
 159         u32 ppu2apu_mb_offset;
 160         u32 ppu2apu_irq;
 161         u32 apu2ppu_irq_ack;
 162         u32 reserved14[13];
 163
 164         u32 epu2apu_mb_offset;
 165         u32 epu2apu_irq;
 166         u32 apu2epu_irq_ack;
 167         u32 reserved15[13];
 168         u32 reserved16[8];
 169
 170         /* Fields for HPU: */
 171
 172         u32 hpu_state;
 173         u32 reserved21[7];
 174         u32 cpu2hpu_mb_offset;
 175         u32 cpu2hpu_irq;
 176         u32 hpu2cpu_irq_ack;
 177         u32 reserved22[13];
 178
 179         u32 apu2hpu_mb_offset;
 180         u32 apu2hpu_irq;
 181         u32 hpu2apu_irq_ack;
 182         u32 reserved23[13];
 183
 184         u32 ppu2hpu_mb_offset;
 185         u32 ppu2hpu_irq;
 186         u32 hpu2ppu_irq_ack;
 187         u32 reserved24[13];
 188
 189         u32 epu2hpu_mb_offset;
 190         u32 epu2hpu_irq;
 191         u32 hpu2epu_irq_ack;
 192         u32 reserved25[13];
 193         u32 reserved26[8];
 194
 195         /* Fields for PPU: */
 196
 197         u32 ppu_state;
 198         u32 reserved31[7];
 199         u32 cpu2ppu_mb_offset;
 200         u32 cpu2ppu_irq;
 201         u32 ppu2cpu_irq_ack;
 202         u32 reserved32[13];
 203
 204         u32 apu2ppu_mb_offset;
 205         u32 apu2ppu_irq;
 206         u32 ppu2apu_irq_ack;
 207         u32 reserved33[13];
 208
 209         u32 hpu2ppu_mb_offset;
 210         u32 hpu2ppu_irq;
 211         u32 ppu2hpu_irq_ack;
 212         u32 reserved34[13];
 213
 214         u32 epu2ppu_mb_offset;
 215         u32 epu2ppu_irq;
 216         u32 ppu2epu_irq_ack;
 217         u32 reserved35[13];
 218         u32 reserved36[8];
 219
 220         /* Fields for EPU: */
 221
 222         u32 epu_state;
 223         u32 reserved41[7];
 224         u32 cpu2epu_mb_offset;
 225         u32 cpu2epu_irq;
 226         u32 epu2cpu_irq_ack;
 227         u32 reserved42[13];
 228
 229         u32 apu2epu_mb_offset;
 230         u32 apu2epu_irq;
 231         u32 epu2apu_irq_ack;
 232         u32 reserved43[13];
 233
 234         u32 hpu2epu_mb_offset;
 235         u32 hpu2epu_irq;
 236         u32 epu2hpu_irq_ack;
 237         u32 reserved44[13];
 238
 239         u32 ppu2epu_mb_offset;
 240         u32 ppu2epu_irq;
 241         u32 epu2ppu_irq_ack;
 242         u32 reserved45[13];
 243         u32 reserved46[8];
 244
 245         u32 semaphores[8];  /* Semaphores */
 246
 247         u32 reserved50[32]; /* Reserved for future use */
 248
 249         struct cx18_mailbox  apu2cpu_mb;
 250         struct cx18_mailbox  hpu2cpu_mb;
 251         struct cx18_mailbox  ppu2cpu_mb;
 252         struct cx18_mailbox  epu2cpu_mb;
 253
 254         struct cx18_mailbox  cpu2apu_mb;
 255         struct cx18_mailbox  hpu2apu_mb;
 256         struct cx18_mailbox  ppu2apu_mb;
 257         struct cx18_mailbox  epu2apu_mb;
 258
 259         struct cx18_mailbox  cpu2hpu_mb;
 260         struct cx18_mailbox  apu2hpu_mb;
 261         struct cx18_mailbox  ppu2hpu_mb;
 262         struct cx18_mailbox  epu2hpu_mb;
 263
 264         struct cx18_mailbox  cpu2ppu_mb;
 265         struct cx18_mailbox  apu2ppu_mb;
 266         struct cx18_mailbox  hpu2ppu_mb;
 267         struct cx18_mailbox  epu2ppu_mb;
 268
 269         struct cx18_mailbox  cpu2epu_mb;
 270         struct cx18_mailbox  apu2epu_mb;
 271         struct cx18_mailbox  hpu2epu_mb;
 272         struct cx18_mailbox  ppu2epu_mb;
 273
 274         struct cx18_mdl_ack  cpu_mdl_ack[CX18_MAX_STREAMS][CX18_MAX_MDL_ACKS];
 275         struct cx18_mdl_ent  cpu_mdl[1];
 276 };
 277
 278 void cx18_init_scb(struct cx18 *cx);
 279
 280 #endif