54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2015 Travis Geiselbrecht
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
/* in memory and DCC descriptors for the PDCC protocol */
|
|
|
|
/* shared outside of lk repository, be careful of modifications */
|
|
#define PDCC_VERSION 1
|
|
|
|
struct pdcc_buffer_descriptor {
|
|
uint32_t version;
|
|
|
|
uint32_t htod_buffer_phys;
|
|
uint32_t htod_buffer_len;
|
|
|
|
uint32_t dtoh_buffer_phys;
|
|
uint32_t dtoh_buffer_len;
|
|
};
|
|
|
|
#define PDCC_VALID (1<<31)
|
|
#define PDCC_OPCODE_SHIFT (24)
|
|
#define PDCC_OPCODE(x) (((x) >> PDCC_OPCODE_SHIFT) & 0x7f)
|
|
#define PDCC_DATA(x) ((x) & 0x00ffffff);
|
|
|
|
enum {
|
|
PDCC_OP_RESET = 0,
|
|
PDCC_OP_BUF_HEADER,
|
|
PDCC_OP_UPDATE_OUT_INDEX,
|
|
PDCC_OP_CONSUMED_IN,
|
|
};
|
|
|