repos/blastem: romdb.c annotate

annotate romdb.c @ 772:1b82b282b829

Less broken EEPROM support

author	Michael Pavone <pavone@retrodev.com>
date	Fri, 17 Jul 2015 22:16:33 -0700
parents	a3b90f746dcf
children	41dc895e85ff

rev	line source
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	1 #include <stdlib.h>
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	2 #include <string.h>
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	3 #include "config.h"
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	4 #include "romdb.h"
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	5 #include "util.h"
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	6 #include "blastem.h"
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	7
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	8 #define TITLE_START 0x150
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	9 #define TITLE_END (TITLE_START+48)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	10 #define GAME_ID_OFF 0x183
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	11 #define GAME_ID_LEN 8
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	12 #define ROM_END 0x1A4
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	13 #define RAM_ID 0x1B0
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	14 #define RAM_FLAGS 0x1B2
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	15 #define RAM_START 0x1B4
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	16 #define RAM_END 0x1B8
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	17 #define REGION_START 0x1F0
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	18
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	19 enum {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	20 I2C_IDLE,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	21 I2C_START,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	22 I2C_DEVICE_ACK,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	23 I2C_ADDRESS_HI,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	24 I2C_ADDRESS_HI_ACK,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	25 I2C_ADDRESS,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	26 I2C_ADDRESS_ACK,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	27 I2C_READ,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	28 I2C_READ_ACK,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	29 I2C_WRITE,
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	30 I2C_WRITE_ACK
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	31 };
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	32
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	33 char * i2c_states[] = {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	34 "idle",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	35 "start",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	36 "device ack",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	37 "address hi",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	38 "address hi ack",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	39 "address",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	40 "address ack",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	41 "read",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	42 "read_ack",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	43 "write",
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	44 "write_ack"
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	45 };
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	46
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	47 void eeprom_init(eeprom_state state, uint8_t buffer, uint32_t size)
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	48 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	49 state->slave_sda = 1;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	50 state->host_sda = state->scl = 0;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	51 state->buffer = buffer;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	52 state->size = size;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	53 state->state = I2C_IDLE;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	54 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	55
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	56 void set_host_sda(eeprom_state *state, uint8_t val)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	57 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	58 if (state->scl) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	59 if (val & ~state->host_sda) {
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	60 //low to high, stop condition
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	61 state->state = I2C_IDLE;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	62 state->slave_sda = 1;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	63 } else if (~val & state->host_sda) {
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	64 //high to low, start condition
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	65 state->state = I2C_START;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	66 state->slave_sda = 1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	67 state->counter = 8;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	68 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	69 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	70 state->host_sda = val;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	71 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	72
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	73 void set_scl(eeprom_state *state, uint8_t val)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	74 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	75 if (val & ~state->scl) {
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	76 //low to high transition
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	77 switch (state->state)
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	78 {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	79 case I2C_START:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	80 case I2C_ADDRESS_HI:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	81 case I2C_ADDRESS:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	82 case I2C_WRITE:
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	83 state->latch = state->host_sda \| state->latch << 1;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	84 state->counter--;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	85 if (!state->counter) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	86 switch (state->state & 0x7F)
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	87 {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	88 case I2C_START:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	89 state->state = I2C_DEVICE_ACK;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	90 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	91 case I2C_ADDRESS_HI:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	92 state->address = state->latch << 8;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	93 state->state = I2C_ADDRESS_HI_ACK;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	94 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	95 case I2C_ADDRESS:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	96 state->address \|= state->latch;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	97 state->state = I2C_ADDRESS_ACK;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	98 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	99 case I2C_WRITE:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	100 state->buffer[state->address] = state->latch;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	101 state->state = I2C_WRITE_ACK;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	102 state->address++;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	103 //TODO: page mask
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	104 state->address &= state->size-1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	105 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	106 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	107 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	108 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	109 case I2C_DEVICE_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	110 if (state->latch & 1) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	111 state->state = I2C_READ;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	112 state->counter = 8;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	113 state->latch = state->buffer[state->address];
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	114 state->address++;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	115 //TODO: page mask
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	116 state->address &= state->size-1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	117 } else {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	118 if (state->size < 256) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	119 state->address = state->latch >> 1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	120 state->state = I2C_WRITE;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	121 } else if (state->size < 8192) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	122 state->address = state->latch << 8;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	123 state->state = I2C_ADDRESS;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	124 } else {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	125 state->state = I2C_ADDRESS_HI;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	126 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	127 state->counter = 8;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	128 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	129 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	130 case I2C_ADDRESS_HI_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	131 state->state = I2C_ADDRESS;
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	132 state->counter = 8;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	133 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	134 case I2C_ADDRESS_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	135 state->state = I2C_WRITE;
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	136 state->counter = 8;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	137 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	138 case I2C_READ:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	139 state->counter--;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	140 if (!state->counter) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	141 state->state = I2C_READ_ACK;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	142 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	143 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	144 case I2C_READ_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	145 state->state = I2C_READ;
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	146 state->counter = 8;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	147 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	148 case I2C_WRITE_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	149 state->state = I2C_WRITE;
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	150 state->counter = 8;
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	151 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	152 }
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	153 } else if (~val & state->scl) {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	154 //high to low transition
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	155 switch (state->state & 0x7F)
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	156 {
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	157 case I2C_DEVICE_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	158 case I2C_ADDRESS_HI_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	159 case I2C_ADDRESS_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	160 case I2C_READ_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	161 case I2C_WRITE_ACK:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	162 state->slave_sda = 0;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	163 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	164 case I2C_READ:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	165 state->slave_sda = state->latch >> 7;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	166 state->latch = state->latch << 1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	167 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	168 default:
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	169 state->slave_sda = 1;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	170 break;
a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	171 }
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	172 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	173 state->scl = val;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	174 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	175
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	176 uint8_t get_sda(eeprom_state *state)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	177 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	178 return state->host_sda & state->slave_sda;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	179 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	180
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	181 uint16_t read_sram_w(uint32_t address, m68k_context * context)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	182 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	183 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	184 address &= gen->save_ram_mask;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	185 switch(gen->save_type)
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	186 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	187 case RAM_FLAG_BOTH:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	188 return gen->save_storage[address] << 8 \| gen->save_storage[address+1];
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	189 case RAM_FLAG_EVEN:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	190 return gen->save_storage[address >> 1] << 8 \| 0xFF;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	191 case RAM_FLAG_ODD:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	192 return gen->save_storage[address >> 1] \| 0xFF00;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	193 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	194 return 0xFFFF;//We should never get here
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	195 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	196
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	197 uint8_t read_sram_b(uint32_t address, m68k_context * context)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	198 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	199 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	200 address &= gen->save_ram_mask;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	201 switch(gen->save_type)
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	202 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	203 case RAM_FLAG_BOTH:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	204 return gen->save_storage[address];
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	205 case RAM_FLAG_EVEN:
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	206 if (address & 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	207 return 0xFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	208 } else {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	209 return gen->save_storage[address >> 1];
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	210 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	211 case RAM_FLAG_ODD:
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	212 if (address & 1) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	213 return gen->save_storage[address >> 1];
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	214 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	215 return 0xFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	216 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	217 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	218 return 0xFF;//We should never get here
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	219 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	220
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	221 m68k_context * write_sram_area_w(uint32_t address, m68k_context * context, uint16_t value)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	222 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	223 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	224 if ((gen->bank_regs[0] & 0x3) == 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	225 address &= gen->save_ram_mask;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	226 switch(gen->save_type)
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	227 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	228 case RAM_FLAG_BOTH:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	229 gen->save_storage[address] = value >> 8;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	230 gen->save_storage[address+1] = value;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	231 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	232 case RAM_FLAG_EVEN:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	233 gen->save_storage[address >> 1] = value >> 8;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	234 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	235 case RAM_FLAG_ODD:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	236 gen->save_storage[address >> 1] = value;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	237 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	238 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	239 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	240 return context;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	241 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	242
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	243 m68k_context * write_sram_area_b(uint32_t address, m68k_context * context, uint8_t value)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	244 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	245 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	246 if ((gen->bank_regs[0] & 0x3) == 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	247 address &= gen->save_ram_mask;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	248 switch(gen->save_type)
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	249 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	250 case RAM_FLAG_BOTH:
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	251 gen->save_storage[address] = value;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	252 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	253 case RAM_FLAG_EVEN:
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	254 if (!(address & 1)) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	255 gen->save_storage[address >> 1] = value;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	256 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	257 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	258 case RAM_FLAG_ODD:
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	259 if (address & 1) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	260 gen->save_storage[address >> 1] = value;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	261 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	262 break;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	263 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	264 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	265 return context;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	266 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	267
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	268 m68k_context * write_bank_reg_w(uint32_t address, m68k_context * context, uint16_t value)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	269 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	270 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	271 address &= 0xE;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	272 address >>= 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	273 gen->bank_regs[address] = value;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	274 if (!address) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	275 if (value & 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	276 context->mem_pointers[2] = NULL;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	277 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	278 context->mem_pointers[2] = cart + 0x200000/2;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	279 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	280 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	281 return context;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	282 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	283
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	284 m68k_context * write_bank_reg_b(uint32_t address, m68k_context * context, uint8_t value)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	285 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	286 if (address & 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	287 genesis_context * gen = context->system;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	288 address &= 0xE;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	289 address >>= 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	290 gen->bank_regs[address] = value;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	291 if (!address) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	292 if (value & 1) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	293 context->mem_pointers[2] = NULL;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	294 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	295 context->mem_pointers[2] = cart + 0x200000/2;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	296 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	297 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	298 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	299 return context;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	300 }
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	301 eeprom_map find_eeprom_map(uint32_t address, genesis_context gen)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	302 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	303 for (int i = 0; i < gen->num_eeprom; i++)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	304 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	305 if (address >= gen->eeprom_map[i].start && address <= gen->eeprom_map[i].end) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	306 return gen->eeprom_map + i;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	307 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	308 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	309 return NULL;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	310 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	311
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	312 void * write_eeprom_i2c_w(uint32_t address, void * context, uint16_t value)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	313 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	314 genesis_context gen = ((m68k_context )context)->system;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	315 eeprom_map *map = find_eeprom_map(address, gen);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	316 if (!map) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	317 fprintf(stderr, "Could not find EEPROM map for address %X\n", address);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	318 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	319 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	320 printf("EEPROM word write: %X - %X\n", address, value);
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	321 if (map->scl_mask) {
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	322 set_scl(&gen->eeprom, (value & map->scl_mask) != 0);
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	323 printf("scl: %d, state: %s, counter: %d, latch: %X\n", (value & map->scl_mask) != 0, i2c_states[gen->eeprom.state], gen->eeprom.counter, gen->eeprom.latch);
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	324 }
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	325 if (map->sda_write_mask) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	326 printf("sda: %d\n", (value & map->sda_write_mask) != 0);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	327 set_host_sda(&gen->eeprom, (value & map->sda_write_mask) != 0);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	328 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	329 return context;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	330 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	331
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	332 void * write_eeprom_i2c_b(uint32_t address, void * context, uint8_t value)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	333 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	334 genesis_context gen = ((m68k_context )context)->system;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	335 eeprom_map *map = find_eeprom_map(address, gen);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	336 if (!map) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	337 fprintf(stderr, "Could not find EEPROM map for address %X\n", address);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	338 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	339 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	340
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	341 uint16_t expanded, mask;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	342 if (address & 1) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	343 expanded = value;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	344 mask = 0xFF;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	345 } else {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	346 expanded = value << 8;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	347 mask = 0xFF00;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	348 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	349 printf("EEPROM byte write: %X - %X (using mask %X and expanded val %X)\n", address, value, mask, expanded);
772 1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	350 if (map->scl_mask & mask) {
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	351 printf("scl: %d, state: %s\n", (expanded & map->scl_mask) != 0, i2c_states[gen->eeprom.state]);
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	352 set_scl(&gen->eeprom, (expanded & map->scl_mask) != 0);
1b82b282b829 Less broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 770 diff changeset	353 }
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	354 if (map->sda_write_mask & mask) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	355 printf("sda: %d\n", (expanded & map->sda_write_mask) != 0);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	356 set_host_sda(&gen->eeprom, (expanded & map->sda_write_mask) != 0);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	357 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	358 return context;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	359 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	360
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	361 uint16_t read_eeprom_i2c_w(uint32_t address, void * context)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	362 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	363 genesis_context gen = ((m68k_context )context)->system;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	364 eeprom_map *map = find_eeprom_map(address, gen);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	365 if (!map) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	366 fprintf(stderr, "Could not find EEPROM map for address %X\n", address);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	367 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	368 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	369 uint16_t ret = 0;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	370 if (map->sda_read_bit < 16) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	371 ret = get_sda(&gen->eeprom) << map->sda_read_bit;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	372 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	373 printf("EEPROM word read: %X - %X\n", address, ret);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	374 return ret;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	375 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	376
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	377 uint8_t read_eeprom_i2c_b(uint32_t address, void * context)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	378 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	379 genesis_context gen = ((m68k_context )context)->system;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	380 eeprom_map *map = find_eeprom_map(address, gen);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	381 if (!map) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	382 fprintf(stderr, "Could not find EEPROM map for address %X\n", address);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	383 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	384 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	385 uint8_t bit = address & 1 ? map->sda_read_bit : map->sda_read_bit - 8;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	386 uint8_t ret = 0;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	387 if (bit < 8) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	388 ret = get_sda(&gen->eeprom) << bit;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	389 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	390 printf("EEPROM byte read: %X - %X\n", address, ret);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	391 return ret;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	392 }
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	393
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	394 tern_node *load_rom_db()
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	395 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	396 char *exe_dir = get_exe_dir();
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	397 if (!exe_dir) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	398 fputs("Failed to find executable path\n", stderr);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	399 exit(1);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	400 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	401 char *path = alloc_concat(exe_dir, "/rom.db");
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	402 tern_node *db = parse_config_file(path);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	403 free(path);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	404 if (!db) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	405 fputs("Failed to load ROM DB\n", stderr);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	406 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	407 return db;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	408 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	409
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	410 char get_header_name(uint8_t rom)
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	411 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	412 uint8_t *last = rom + TITLE_END - 1;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	413 uint8_t *src = rom + TITLE_START;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	414
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	415 while (last > src && (last <= 0x20 \|\| last >= 0x80))
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	416 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	417 last--;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	418 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	419 if (last == src) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	420 //TODO: Use other name field
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	421 return strdup("UNKNOWN");
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	422 } else {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	423 last++;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	424 char *ret = malloc(last - (rom + TITLE_START) + 1);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	425 uint8_t *dst;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	426 for (dst = ret; src < last; src++)
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	427 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	428 if (src >= 0x20 && src < 0x80) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	429 (dst++) = src;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	430 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	431 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	432 *dst = 0;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	433 return ret;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	434 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	435 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	436
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	437 char *region_chars = "UB4JEA";
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	438 uint8_t region_bits[] = {REGION_U, REGION_U, REGION_U, REGION_J, REGION_E, REGION_E};
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	439
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	440 uint8_t translate_region_char(uint8_t c)
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	441 {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	442 for (int i = 0; i < sizeof(region_bits); i++)
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	443 {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	444 if (c == region_chars[i]) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	445 return region_bits[i];
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	446 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	447 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	448 return 0;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	449 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	450
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	451 uint8_t get_header_regions(uint8_t *rom)
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	452 {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	453 uint8_t regions = 0;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	454 for (int i = 0; i < 3; i++)
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	455 {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	456 regions \|= translate_region_char(rom[REGION_START + i]);
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	457 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	458 return regions;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	459 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	460
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	461 uint32_t get_u32be(uint8_t *data)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	462 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	463 return *data << 24 \| data[1] << 16 \| data[2] << 8 \| data[3];
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	464 }
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	465
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	466 uint32_t calc_mask(uint32_t src_size, uint32_t start, uint32_t end)
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	467 {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	468 uint32_t map_size = end-start+1;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	469 if (src_size < map_size) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	470 return nearest_pow2(src_size)-1;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	471 } else if (!start) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	472 return 0xFFFFFF;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	473 } else {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	474 return nearest_pow2(map_size)-1;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	475 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	476 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	477
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	478 void add_memmap_header(rom_info info, uint8_t rom, uint32_t size, memmap_chunk const *base_map, int base_chunks)
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	479 {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	480 if (rom[RAM_ID] == 'R' && rom[RAM_ID+1] == 'A') {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	481 uint32_t rom_end = get_u32be(rom + ROM_END) + 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	482 uint32_t ram_start = get_u32be(rom + RAM_START);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	483 uint32_t ram_end = get_u32be(rom + RAM_END);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	484 uint32_t ram_flags = info->save_type = rom[RAM_FLAGS] & RAM_FLAG_MASK;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	485 ram_start &= 0xFFFFFE;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	486 ram_end \|= 1;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	487 info->save_mask = ram_end - ram_start;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	488 uint32_t size = info->save_mask + 1;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	489 if (ram_flags != RAM_FLAG_BOTH) {
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	490 size /= 2;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	491 }
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	492 info->save_size = size;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	493 info->save_buffer = malloc(size);
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	494
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	495 info->map_chunks = base_chunks + (ram_start >= rom_end ? 2 : 3);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	496 info->map = malloc(sizeof(memmap_chunk) * info->map_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	497 memset(info->map, 0, sizeof(memmap_chunk)*2);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	498 memcpy(info->map+2, base_map, sizeof(memmap_chunk) * base_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	499
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	500 if (ram_start >= rom_end) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	501 info->map[0].end = rom_end;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	502 //TODO: ROM mirroring
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	503 info->map[0].mask = 0xFFFFFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	504 info->map[0].flags = MMAP_READ;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	505 info->map[0].buffer = rom;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	506
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	507 info->map[1].start = ram_start;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	508 info->map[1].mask = info->save_mask;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	509 info->map[1].end = ram_end + 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	510 info->map[1].flags = MMAP_READ \| MMAP_WRITE;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	511
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	512 if (ram_flags == RAM_FLAG_ODD) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	513 info->map[1].flags \|= MMAP_ONLY_ODD;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	514 } else if (ram_flags == RAM_FLAG_EVEN) {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	515 info->map[1].flags \|= MMAP_ONLY_EVEN;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	516 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	517 info->map[1].buffer = info->save_buffer;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	518 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	519 //Assume the standard Sega mapper
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	520 info->map[0].end = 0x200000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	521 info->map[0].mask = 0xFFFFFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	522 info->map[0].flags = MMAP_READ;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	523 info->map[0].buffer = rom;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	524
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	525 info->map[1].start = 0x200000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	526 info->map[1].end = 0x400000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	527 info->map[1].mask = 0x1FFFFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	528 info->map[1].flags = MMAP_READ \| MMAP_PTR_IDX \| MMAP_FUNC_NULL;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	529 info->map[1].ptr_index = 2;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	530 info->map[1].read_16 = (read_16_fun)read_sram_w;//these will only be called when mem_pointers[2] == NULL
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	531 info->map[1].read_8 = (read_8_fun)read_sram_b;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	532 info->map[1].write_16 = (write_16_fun)write_sram_area_w;//these will be called all writes to the area
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	533 info->map[1].write_8 = (write_8_fun)write_sram_area_b;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	534 info->map[1].buffer = cart + 0x200000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	535
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	536 memmap_chunk *last = info->map + info->map_chunks - 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	537 memset(last, 0, sizeof(memmap_chunk));
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	538 last->start = 0xA13000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	539 last->end = 0xA13100;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	540 last->mask = 0xFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	541 last->write_16 = (write_16_fun)write_bank_reg_w;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	542 last->write_8 = (write_8_fun)write_bank_reg_b;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	543 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	544 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	545 info->map_chunks = base_chunks + 1;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	546 info->map = malloc(sizeof(memmap_chunk) * info->map_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	547 memset(info->map, 0, sizeof(memmap_chunk));
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	548 memcpy(info->map+1, base_map, sizeof(memmap_chunk) * base_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	549
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	550 info->map[0].end = 0x400000;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	551 info->map[0].mask = 0xFFFFFF;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	552 info->map[0].flags = MMAP_READ;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	553 info->map[0].buffer = rom;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	554 info->save_type = SAVE_NONE;
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	555 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	556 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	557
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	558 rom_info configure_rom_heuristics(uint8_t rom, uint32_t rom_size, memmap_chunk const base_map, uint32_t base_chunks)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	559 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	560 rom_info info;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	561 info.name = get_header_name(rom);
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	562 info.regions = get_header_regions(rom);
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	563 add_memmap_header(&info, rom, rom_size, base_map, base_chunks);
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	564 return info;
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	565 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	566
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	567 typedef struct {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	568 rom_info *info;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	569 uint8_t *rom;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	570 tern_node *root;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	571 uint32_t rom_size;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	572 int index;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	573 int num_els;
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	574 } map_iter_state;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	575
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	576 void eeprom_read_fun(char key, tern_val val, void data)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	577 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	578 int bit = atoi(key);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	579 if (bit < 0 \|\| bit > 15) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	580 fprintf(stderr, "bit %s is out of range", key);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	581 return;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	582 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	583 char *pin = val.ptrval;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	584 if (strcmp(pin, "sda")) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	585 fprintf(stderr, "bit %s is connected to unrecognized read pin %s", key, pin);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	586 return;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	587 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	588 eeprom_map *map = data;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	589 map->sda_read_bit = bit;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	590 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	591
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	592 void eeprom_write_fun(char key, tern_val val, void data)
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	593 {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	594 int bit = atoi(key);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	595 if (bit < 0 \|\| bit > 15) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	596 fprintf(stderr, "bit %s is out of range", key);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	597 return;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	598 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	599 char *pin = val.ptrval;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	600 eeprom_map *map = data;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	601 if (!strcmp(pin, "sda")) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	602 map->sda_write_mask = 1 << bit;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	603 return;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	604 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	605 if (!strcmp(pin, "scl")) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	606 map->scl_mask = 1 << bit;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	607 return;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	608 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	609 fprintf(stderr, "bit %s is connected to unrecognized write pin %s", key, pin);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	610 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	611
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	612 void map_iter_fun(char key, tern_val val, void data)
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	613 {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	614 map_iter_state *state = data;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	615 tern_node *node = tern_get_node(val);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	616 if (!node) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	617 fprintf(stderr, "ROM DB map entry %d with address %s is not a node\n", state->index, key);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	618 exit(1);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	619 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	620 uint32_t start = strtol(key, NULL, 16);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	621 uint32_t end = strtol(tern_find_ptr_default(node, "last", "0"), NULL, 16);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	622 if (!end \|\| end < start) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	623 fprintf(stderr, "'last' value is missing or invalid for ROM DB map entry %d with address %s\n", state->index, key);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	624 exit(1);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	625 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	626 char * dtype = tern_find_ptr_default(node, "device", "ROM");
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	627 uint32_t offset = strtol(tern_find_ptr_default(node, "offset", "0"), NULL, 0);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	628 memmap_chunk *map = state->info->map + state->index;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	629 map->start = start;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	630 map->end = end;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	631 if (!strcmp(dtype, "ROM")) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	632 map->buffer = state->rom + offset;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	633 map->flags = MMAP_READ;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	634 map->mask = calc_mask(state->rom_size, start, end);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	635 } else if (!strcmp(dtype, "EEPROM")) {
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	636 if (!state->info->save_size) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	637 char * size = tern_find_path(state->root, "EEPROM\0size\0").ptrval;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	638 if (!size) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	639 fprintf(stderr, "ROM DB map entry %d with address %s has device type EEPROM, but the EEPROM size is not defined\n", state->index, key);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	640 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	641 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	642 state->info->save_size = atoi(size);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	643 if (!state->info->save_size) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	644 fprintf(stderr, "EEPROM size %s is invalid\n", size);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	645 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	646 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	647 char *etype = tern_find_path(state->root, "EEPROM\0type\0").ptrval;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	648 if (!etype) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	649 etype = "i2c";
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	650 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	651 if (!strcmp(etype, "i2c")) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	652 state->info->save_type = SAVE_I2C;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	653 } else {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	654 fprintf(stderr, "EEPROM type %s is invalid\n", etype);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	655 exit(1);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	656 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	657 state->info->save_buffer = malloc(state->info->save_size);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	658 state->info->eeprom_map = malloc(sizeof(eeprom_map) * state->num_els);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	659 memset(state->info->eeprom_map, 0, sizeof(eeprom_map) * state->num_els);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	660 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	661 eeprom_map *eep_map = state->info->eeprom_map + state->info->num_eeprom;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	662 eep_map->start = start;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	663 eep_map->end = end;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	664 eep_map->sda_read_bit = 0xFF;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	665 tern_node * bits_read = tern_find_ptr(node, "bits_read");
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	666 if (bits_read) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	667 tern_foreach(bits_read, eeprom_read_fun, eep_map);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	668 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	669 tern_node * bits_write = tern_find_ptr(node, "bits_write");
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	670 if (bits_write) {
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	671 tern_foreach(bits_write, eeprom_write_fun, eep_map);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	672 }
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	673 printf("EEPROM address %X: sda read: %X, sda write: %X, scl: %X\n", start, eep_map->sda_read_bit, eep_map->sda_write_mask, eep_map->scl_mask);
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	674 state->info->num_eeprom++;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	675 map->write_16 = write_eeprom_i2c_w;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	676 map->write_8 = write_eeprom_i2c_b;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	677 map->read_16 = read_eeprom_i2c_w;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	678 map->read_8 = read_eeprom_i2c_b;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	679 map->mask = 0xFFFFFF;
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	680 } else if (!strcmp(dtype, "SRAM")) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	681 if (!state->info->save_size) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	682 char * size = tern_find_path(state->root, "SRAM\0size\0").ptrval;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	683 if (!size) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	684 fprintf(stderr, "ROM DB map entry %d with address %s has device type SRAM, but the SRAM size is not defined\n", state->index, key);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	685 exit(1);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	686 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	687 state->info->save_size = atoi(size);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	688 if (!state->info->save_size) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	689 fprintf(stderr, "SRAM size %s is invalid\n", size);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	690 exit(1);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	691 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	692 state->info->save_buffer = malloc(state->info->save_size);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	693 char *bus = tern_find_path(state->root, "SRAM\0bus\0").ptrval;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	694 if (!strcmp(bus, "odd")) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	695 state->info->save_type = RAM_FLAG_ODD;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	696 } else if(!strcmp(bus, "even")) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	697 state->info->save_type = RAM_FLAG_EVEN;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	698 } else {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	699 state->info->save_type = RAM_FLAG_BOTH;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	700 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	701 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	702 map->buffer = state->info->save_buffer + offset;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	703 map->flags = MMAP_READ \| MMAP_WRITE;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	704 if (state->info->save_type == RAM_FLAG_ODD) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	705 map->flags \|= MMAP_ONLY_ODD;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	706 } else if(state->info->save_type == RAM_FLAG_EVEN) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	707 map->flags \|= MMAP_ONLY_EVEN;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	708 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	709 map->mask = calc_mask(state->info->save_size, start, end);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	710 } else {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	711 fprintf(stderr, "Invalid device type for ROM DB map entry %d with address %s\n", state->index, key);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	712 exit(1);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	713 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	714 state->index++;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	715 }
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	716
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	717 rom_info configure_rom(tern_node rom_db, void vrom, uint32_t rom_size, memmap_chunk const *base_map, uint32_t base_chunks)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	718 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	719 uint8_t product_id[GAME_ID_LEN+1];
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	720 uint8_t *rom = vrom;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	721 product_id[GAME_ID_LEN] = 0;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	722 for (int i = 0; i < GAME_ID_LEN; i++)
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	723 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	724 if (rom[GAME_ID_OFF + i] <= ' ') {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	725 product_id[i] = 0;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	726 break;
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	727 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	728 product_id[i] = rom[GAME_ID_OFF + i];
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	729
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	730 }
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	731 printf("Product ID: %s\n", product_id);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	732 tern_node * entry = tern_find_ptr(rom_db, product_id);
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	733 if (!entry) {
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	734 puts("Not found in ROM DB, examining header\n");
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	735 return configure_rom_heuristics(rom, rom_size, base_map, base_chunks);
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	736 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	737 rom_info info;
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	738 info.name = tern_find_ptr(entry, "name");
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	739 if (info.name) {
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	740 printf("Found name: %s\n", info.name);
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	741 info.name = strdup(info.name);
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	742 } else {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	743 info.name = get_header_name(rom);
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	744 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	745
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	746 char *dbreg = tern_find_ptr(entry, "regions");
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	747 info.regions = 0;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	748 if (dbreg) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	749 while (*dbreg != 0)
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	750 {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	751 info.regions \|= translate_region_char(*(dbreg++));
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	752 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	753 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	754 if (!info.regions) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	755 info.regions = get_header_regions(rom);
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	756 }
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	757
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	758 tern_node *map = tern_find_ptr(entry, "map");
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	759 if (map) {
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	760 info.map_chunks = tern_count(map);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	761 if (info.map_chunks) {
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	762 info.map_chunks += base_chunks;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	763 info.save_buffer = NULL;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	764 info.save_size = 0;
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	765 info.map = malloc(sizeof(memmap_chunk) * info.map_chunks);
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	766 info.eeprom_map = NULL;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	767 info.num_eeprom = 0;
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	768 memset(info.map, 0, sizeof(memmap_chunk) * (info.map_chunks - base_chunks));
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 768 diff changeset	769 map_iter_state state = {&info, rom, entry, rom_size, 0, info.map_chunks - base_chunks};
768 2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	770 tern_foreach(map, map_iter_fun, &state);
2f48a3c187c6 Add support for reading cartridge memory map from ROM database, though without EEPROM support for now Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	771 memcpy(info.map + state.index, base_map, sizeof(memmap_chunk) * base_chunks);
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	772 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	773 add_memmap_header(&info, rom, rom_size, base_map, base_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	774 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	775 } else {
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	776 add_memmap_header(&info, rom, rom_size, base_map, base_chunks);
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	777 }
1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	778
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: diff changeset	779 return info;
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	780 }

Mercurial > repos > blastem

annotate romdb.c @ 772:1b82b282b829