1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2  *   Mupen64plus - pi_controller.h                                         *
3  *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
4  *   Copyright (C) 2014 Bobby Smiles                                       *
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 as published by  *
8  *   the Free Software Foundation; either version 2 of the License, or     *
9  *   (at your option) any later version.                                   *
10  *                                                                         *
11  *   This program is distributed in the hope that it will be useful,       *
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
14  *   GNU General Public License for more details.                          *
15  *                                                                         *
16  *   You should have received a copy of the GNU General Public License     *
17  *   along with this program; if not, write to the                         *
18  *   Free Software Foundation, Inc.,                                       *
19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
20  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
21 
22 #ifndef M64P_PI_PI_CONTROLLER_H
23 #define M64P_PI_PI_CONTROLLER_H
24 
25 #include <stddef.h>
26 #include <stdint.h>
27 
28 #include "cart_rom.h"
29 #include "flashram.h"
30 #include "sram.h"
31 #include "../dd/dd_rom.h"
32 
33 #ifndef PI_REG
34 #define PI_REG(a) ((a & 0xffff) >> 2)
35 #endif
36 
37 struct r4300_core;
38 struct ri_controller;
39 
40 enum pi_registers
41 {
42     PI_DRAM_ADDR_REG,
43     PI_CART_ADDR_REG,
44     PI_RD_LEN_REG,
45     PI_WR_LEN_REG,
46     PI_STATUS_REG,
47     PI_BSD_DOM1_LAT_REG,
48     PI_BSD_DOM1_PWD_REG,
49     PI_BSD_DOM1_PGS_REG,
50     PI_BSD_DOM1_RLS_REG,
51     PI_BSD_DOM2_LAT_REG,
52     PI_BSD_DOM2_PWD_REG,
53     PI_BSD_DOM2_PGS_REG,
54     PI_BSD_DOM2_RLS_REG,
55     PI_REGS_COUNT
56 };
57 
58 struct pi_controller
59 {
60     uint32_t regs[PI_REGS_COUNT];
61 
62     struct cart_rom cart_rom;
63     struct flashram flashram;
64     struct sram sram;
65     struct dd_rom dd_rom;
66 
67     int use_flashram;
68 
69     struct r4300_core* r4300;
70     struct ri_controller *ri;
71 };
72 
73 void init_pi(struct pi_controller* pi,
74                 uint8_t* rom, size_t rom_size,
75                 uint8_t* ddrom, size_t ddrom_size,
76                 void* flashram_user_data, void (*flashram_save)(void*), uint8_t* flashram_data,
77                 void* sram_user_data, void (*sram_save)(void*), uint8_t* sram_data,
78                 struct r4300_core* r4300,
79                 struct ri_controller *ri);
80 
81 void poweron_pi(struct pi_controller* pi);
82 
83 int read_pi_regs(void* opaque, uint32_t address, uint32_t* value);
84 int write_pi_regs(void* opaque, uint32_t address, uint32_t value, uint32_t mask);
85 
86 void pi_end_of_dma_event(struct pi_controller* pi);
87 
88 #endif
89