repos/blastem: cdd_mcu.c annotate

annotate cdd_mcu.c @ 2095:c732dcc9c61b

Better simulation of CDD pause behavior

author	Michael Pavone <pavone@retrodev.com>
date	Mon, 07 Feb 2022 21:31:58 -0800
parents	0db3af42dd72
children	460c93c19146

rev	line source
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	1 #include "cdd_mcu.h"
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	2 #include "backend.h"
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	3
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	4 #define SCD_MCLKS 50000000
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	5 #define CD_BLOCK_CLKS 16934400
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	6 #define CDD_MCU_DIVIDER 8
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	7 #define SECTOR_CLOCKS (CD_BLOCK_CLKS/75)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	8 #define NIBBLE_CLOCKS (CDD_MCU_DIVIDER * 77)
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	9 #define BYTE_CLOCKS (SECTOR_CLOCKS/2352) // 96
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	10
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	11 //lead in start max diameter 46 mm
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	12 //program area start max diameter 50 mm
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	13 //difference 4 mm = 4000 um
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	14 //radius difference 2 mm = 2000 um
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	15 //track pitch 1.6 um
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	16 //1250 physical tracks in between
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	17 //linear speed 1.2 m/s - 1.4 m/s
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	18 // 1.3 m = 1300 mm
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	19 // circumference at 46 mm ~ 144.51 mm
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	20 // circumference at 50 mm ~ 157.08 mm
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	21 // avg is 150.795
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	22 // 75 sectors per second
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	23 // 17.3333 mm "typical" length of a sector
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	24 // ~8.7 sectors per track in lead-in area
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	25 #define LEADIN_SECTORS 10875
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	26
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	27 static uint32_t cd_block_to_mclks(uint32_t cycles)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	28 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	29 return ((uint64_t)cycles) * ((uint64_t)SCD_MCLKS) / ((uint64_t)CD_BLOCK_CLKS);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	30 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	31
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	32 static uint32_t mclks_to_cd_block(uint32_t cycles)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	33 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	34 return ((uint64_t)cycles) * ((uint64_t)CD_BLOCK_CLKS) / ((uint64_t)SCD_MCLKS);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	35 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	36
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	37 void cdd_mcu_init(cdd_mcu context, system_media media)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	38 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	39 context->next_int_cycle = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	40 context->last_subcode_cycle = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	41 context->last_nibble_cycle = CYCLE_NEVER;
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	42 context->next_byte_cycle = 0;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	43 context->requested_format = SF_NOTREADY;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	44 context->media = media;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	45 context->current_status_nibble = -1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	46 context->current_cmd_nibble = -1;
2076 3f29e2726522 Added basic support for ISO images for games that only have a data track Michael Pavone <pavone@retrodev.com> parents: 2075 diff changeset	47 context->current_sector_byte = -1;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	48 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	49
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	50 enum {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	51 GAO_CDD_CTRL,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	52 GAO_CDD_STATUS,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	53 GAO_CDD_CMD = GAO_CDD_STATUS+5
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	54 };
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	55 //GAO_CDD_CTRL
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	56 #define BIT_MUTE 0x100
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	57 #define BIT_HOCK 0x0004
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	58 #define BIT_DRS 0x0002
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	59 #define BIT_DTS 0x0001
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	60
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	61 static uint8_t checksum(uint8_t *vbuffer)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	62 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	63 uint8_t *buffer = vbuffer;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	64 uint8_t sum = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	65 for (int i = 0; i < 9; i++)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	66 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	67 sum += buffer[i];
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	68 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	69 return (~sum) & 0xF;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	70 }
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	71 #define COARSE_SEEK 2200 //made up numbers
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	72 #define FINE_SEEK 10
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	73 static void handle_seek(cdd_mcu *context)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	74 {
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	75 //TODO: more realistic seeking behavior
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	76 if (context->seeking) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	77 if (context->seek_pba == context->head_pba) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	78 context->seeking = 0;
2095 c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	79 if (context->status == DS_PAUSE) {
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	80 context->pause_pba = context->head_pba;
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	81 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	82 } else if (context->seek_pba > context->head_pba) {
2081 cfd53c94fffb Initial stab at RF5C164 emulation Michael Pavone <pavone@retrodev.com> parents: 2080 diff changeset	83 if (context->seek_pba - context->head_pba >= COARSE_SEEK \|\| context->head_pba < LEADIN_SECTORS) {
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	84 context->head_pba += COARSE_SEEK;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	85 } else if (context->seek_pba - context->head_pba >= FINE_SEEK) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	86 context->head_pba += FINE_SEEK;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	87 } else {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	88 context->head_pba++;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	89 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	90 } else {
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	91 if (context->head_pba - context->seek_pba >= COARSE_SEEK) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	92 context->head_pba -= COARSE_SEEK;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	93 } else if (context->head_pba >= FINE_SEEK) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	94 context->head_pba -= FINE_SEEK;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	95 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	96 context->head_pba = 0;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	97 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	98 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	99 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	100 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	101
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	102 static void lba_to_status(cdd_mcu *context, uint32_t lba)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	103 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	104 uint32_t seconds = lba / 75;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	105 uint32_t frames = lba % 75;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	106 uint32_t minutes = seconds / 60;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	107 seconds = seconds % 60;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	108 context->status_buffer.b.time.min_high = minutes / 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	109 context->status_buffer.b.time.min_low = minutes % 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	110 context->status_buffer.b.time.sec_high = seconds / 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	111 context->status_buffer.b.time.sec_low = seconds % 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	112 context->status_buffer.b.time.frame_high = frames / 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	113 context->status_buffer.b.time.frame_low = frames % 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	114 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	115
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	116 static void update_status(cdd_mcu context, uint16_t gate_array)
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	117 {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	118 gate_array[GAO_CDD_CTRL] \|= BIT_MUTE;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	119 switch (context->status)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	120 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	121 case DS_PLAY:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	122 handle_seek(context);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	123 if (!context->seeking) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	124 context->head_pba++;
2081 cfd53c94fffb Initial stab at RF5C164 emulation Michael Pavone <pavone@retrodev.com> parents: 2080 diff changeset	125 }
cfd53c94fffb Initial stab at RF5C164 emulation Michael Pavone <pavone@retrodev.com> parents: 2080 diff changeset	126 if (context->head_pba >= LEADIN_SECTORS) {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	127 uint8_t track = context->media->seek(context->media, context->head_pba - LEADIN_SECTORS);
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	128 if (!context->seeking && context->media->tracks[track].type == TRACK_AUDIO) {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	129 gate_array[GAO_CDD_CTRL] &= ~BIT_MUTE;
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	130 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	131 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	132 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	133 case DS_PAUSE:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	134 handle_seek(context);
2095 c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	135 if (!context->seeking) {
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	136 context->head_pba++;
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	137 if (context->head_pba > context->pause_pba + FINE_SEEK) {
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	138 context->head_pba = context->pause_pba - FINE_SEEK;
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	139 if (context->head_pba < LEADIN_SECTORS) {
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	140 context->head_pba = LEADIN_SECTORS;
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	141 }
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	142 }
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	143 }
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	144 if (context->head_pba >= LEADIN_SECTORS) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	145 uint8_t track = context->media->seek(context->media, context->head_pba - LEADIN_SECTORS);
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	146 if (!context->seeking && context->media->tracks[track].type == TRACK_AUDIO) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	147 gate_array[GAO_CDD_CTRL] &= ~BIT_MUTE;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	148 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	149 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	150 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	151 case DS_TOC_READ:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	152 handle_seek(context);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	153 if (!context->seeking) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	154 context->head_pba++;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	155 if (context->media && context->media->type == MEDIA_CDROM && context->media->num_tracks) {
2079 5a2b759f6b2d BIOS doesn't like it if TOC read happens too quickly Michael Pavone <pavone@retrodev.com> parents: 2078 diff changeset	156 if (context->head_pba > 3*(context->media->num_tracks + 2)) {
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	157 context->toc_valid = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	158 context->seeking = 1;
2095 c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	159 context->seek_pba = LEADIN_SECTORS + context->media->tracks[0].start_lba + context->media->tracks[0].fake_pregap;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	160 context->status = DS_PAUSE;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	161 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	162
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	163 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	164 context->status = DS_NO_DISC;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	165 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	166 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	167 break;
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	168 case DS_TRACKING:
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	169 handle_seek(context);
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	170 if (!context->seeking) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	171 context->status = DS_PAUSE;
2095 c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	172 context->pause_pba = context->head_pba;
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	173 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	174 if (context->head_pba >= LEADIN_SECTORS) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	175 uint8_t track = context->media->seek(context->media, context->head_pba - LEADIN_SECTORS);
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	176 if (!context->seeking && context->media->tracks[track].type == TRACK_AUDIO) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	177 gate_array[GAO_CDD_CTRL] &= ~BIT_MUTE;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	178 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	179 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	180 break;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	181 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	182 if (context->first_cmd_received) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	183 switch (context->requested_format)
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	184 {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	185 case SF_ABSOLUTE:
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	186 if (context->toc_valid && context->head_pba >= LEADIN_SECTORS) {
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	187 lba_to_status(context, context->head_pba - LEADIN_SECTORS);
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	188 context->status_buffer.format = SF_ABSOLUTE;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	189 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	190 context->status_buffer.format = SF_NOTREADY;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	191 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	192 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	193 case SF_RELATIVE:
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	194 if (context->toc_valid && context->head_pba >= LEADIN_SECTORS) {
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	195 uint32_t lba =context->head_pba - LEADIN_SECTORS;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	196 for (uint32_t i = 0; i < context->media->num_tracks; i++)
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	197 {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	198 if (lba < context->media->tracks[i].end_lba) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	199 if (context->media->tracks[i].fake_pregap) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	200 if (lba > context->media->tracks[i].fake_pregap) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	201 lba -= context->media->tracks[i].fake_pregap;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	202 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	203 //relative time counts down to 0 in pregap
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	204 lba = context->media->tracks[i].fake_pregap - lba;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	205 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	206 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	207 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	208 if (lba < context->media->tracks[i].start_lba) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	209 //relative time counts down to 0 in pregap
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	210 lba = context->media->tracks[i].start_lba - lba;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	211 } else {
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	212 lba -= context->media->tracks[i].start_lba;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	213 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	214 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	215 } else if (context->media->tracks[i].fake_pregap) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	216 lba -= context->media->tracks[i].fake_pregap;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	217 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	218 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	219 lba_to_status(context, lba);
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	220 context->status_buffer.format = SF_RELATIVE;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	221 } else {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	222 context->status_buffer.format = SF_NOTREADY;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	223 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	224 break;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	225 case SF_TRACK:
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	226 if (context->toc_valid && context->head_pba >= LEADIN_SECTORS) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	227 uint32_t lba =context->head_pba - LEADIN_SECTORS;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	228 uint32_t i;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	229 for (i = 0; i < context->media->num_tracks; i++)
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	230 {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	231 if (lba < context->media->tracks[i].end_lba) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	232 if (context->media->tracks[i].fake_pregap) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	233 if (lba > context->media->tracks[i].fake_pregap) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	234 lba -= context->media->tracks[i].fake_pregap;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	235 } else {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	236 //relative time counts down to 0 in pregap
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	237 lba = context->media->tracks[i].fake_pregap - lba;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	238 break;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	239 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	240 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	241 if (lba < context->media->tracks[i].start_lba) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	242 //relative time counts down to 0 in pregap
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	243 lba = context->media->tracks[i].start_lba - lba;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	244 } else {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	245 lba -= context->media->tracks[i].start_lba;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	246 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	247 break;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	248 } else if (context->media->tracks[i].fake_pregap) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	249 lba -= context->media->tracks[i].fake_pregap;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	250 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	251 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	252 context->status_buffer.b.track.track_high = (i + 1) / 10;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	253 context->status_buffer.b.track.track_low = (i + 1) % 10;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	254 if (context->media->tracks[i].type == TRACK_DATA) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	255 context->status_buffer.b.track.control = 4;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	256 } else {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	257 //TODO: pre-emphasis flag
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	258 //TODO: copy permitted flag
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	259 context->status_buffer.b.track.control = 0;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	260 }
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	261 context->status_buffer.b.track.adr = 1;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	262 context->status_buffer.format = SF_TRACK;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	263 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	264 context->status_buffer.format = SF_NOTREADY;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	265 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	266 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	267 case SF_TOCO:
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	268 if (context->toc_valid) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	269 uint32_t total_fake_pregap = 0;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	270 for (uint32_t i = 0; i < context->media->num_tracks; i++)
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	271 {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	272 total_fake_pregap += context->media->tracks[i].fake_pregap;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	273 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	274 lba_to_status(context, context->media->tracks[context->media->num_tracks - 1].end_lba + total_fake_pregap);
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	275 context->status_buffer.format = SF_TOCO;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	276 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	277 context->status_buffer.format = SF_NOTREADY;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	278 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	279 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	280 case SF_TOCT:
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	281 if (context->toc_valid) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	282 context->status_buffer.b.toct.first_track_high = 0;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	283 context->status_buffer.b.toct.first_track_low = 1;
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	284 context->status_buffer.b.toct.last_track_high = (context->media->num_tracks) / 10;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	285 context->status_buffer.b.toct.last_track_low = (context->media->num_tracks) % 10;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	286 context->status_buffer.b.toct.version = 0;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	287 context->status_buffer.format = SF_TOCT;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	288 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	289 context->status_buffer.format = SF_NOTREADY;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	290 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	291 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	292 case SF_TOCN:
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	293 if (context->toc_valid) {
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	294 if (context->requested_track > context->media->num_tracks) {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	295 printf("track number %d is bad\n", context->requested_track);
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	296 exit(0);
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	297 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	298 uint32_t lba = context->media->tracks[context->requested_track - 1].start_lba;
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	299 for (uint32_t i = 0; i < context->requested_track; i++) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	300 lba += context->media->tracks[i].fake_pregap;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	301 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	302 lba_to_status(context, lba);
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	303 if (context->media->tracks[context->requested_track - 1].type == TRACK_DATA) {
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	304 context->status_buffer.b.tocn.frame_low \|= 0x80;
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	305 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	306 context->status_buffer.b.tocn.track_low = context->requested_track % 10;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	307 context->status_buffer.format = SF_TOCN;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	308 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	309 context->status_buffer.format = SF_NOTREADY;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	310 }
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	311 break;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	312 case SF_NOTREADY:
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	313 memset(&context->status_buffer, 0, sizeof(context->status_buffer) - 1);
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	314 context->status_buffer.format = SF_NOTREADY;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	315 break;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	316 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	317 if (context->error_status == DS_STOP) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	318 if (context->requested_format >= SF_TOCO && context->requested_format <= SF_TOCN) {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	319 context->status_buffer.status = DS_TOC_READ;
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	320 } else if (context->seeking && context->status != DS_TRACKING) {
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	321 context->status_buffer.status = DS_SEEK;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	322 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	323 context->status_buffer.status = context->status;
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	324 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	325 } else {
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	326 context->status_buffer.status = context->error_status;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	327 context->status_buffer.format = SF_NOTREADY;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	328 context->error_status = DS_STOP;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	329 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	330 if (context->requested_format != SF_TOCN) {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	331 context->status_buffer.b.time.flags = !!(gate_array[GAO_CDD_CTRL] & BIT_MUTE); //TODO: populate these
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	332 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	333 } else {
91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	334 // Did not receive our first command so just send zeroes
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	335 memset(&context->status_buffer, 0, sizeof(context->status_buffer) - 1);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	336 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	337 context->status_buffer.checksum = checksum((uint8_t *)&context->status_buffer);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	338 if (context->status_buffer.format != SF_NOTREADY) {
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	339 printf("CDD Status %X%X.%X%X%X%X%X%X.%X%X\n",
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	340 context->status_buffer.status, context->status_buffer.format,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	341 context->status_buffer.b.time.min_high, context->status_buffer.b.time.min_low,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	342 context->status_buffer.b.time.sec_high, context->status_buffer.b.time.sec_low,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	343 context->status_buffer.b.time.frame_high, context->status_buffer.b.time.frame_low,
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	344 context->status_buffer.b.time.flags, context->status_buffer.checksum
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	345 );
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	346 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	347 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	348
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	349 static void run_command(cdd_mcu *context)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	350 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	351 uint8_t check = checksum((uint8_t*)&context->cmd_buffer);
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	352 printf("cmd %X, checksum: %X, calc: %X\n", context->cmd_buffer.cmd_type, context->cmd_buffer.checksum, check);
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	353 if (check != context->cmd_buffer.checksum) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	354 context->error_status = DS_SUM_ERROR;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	355 return;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	356 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	357 if (context->cmd_buffer.must_be_zero) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	358 context->error_status = DS_CMD_ERROR;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	359 return;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	360 }
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	361 context->first_cmd_received = 1;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	362 switch (context->cmd_buffer.cmd_type)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	363 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	364 case CMD_NOP:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	365 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	366 case CMD_STOP:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	367 puts("CDD CMD: STOP");
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	368 context->status = DS_STOP;
2064 91e4d2fe5cd9 Get CDD working well enough to get into BIOS CD player Michael Pavone <pavone@retrodev.com> parents: 2062 diff changeset	369 context->requested_format = SF_ABSOLUTE;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	370 break;
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	371 case CMD_READ:
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	372 case CMD_SEEK: {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	373 if (context->status == DS_DOOR_OPEN \|\| context->status == DS_TRAY_MOVING \|\| context->status == DS_DISC_LEADOUT \|\| context->status == DS_DISC_LEADIN) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	374 context->error_status = DS_CMD_ERROR;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	375 break;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	376 }
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	377 if (context->requested_format == SF_TOCT \|\| context->requested_format == SF_TOCN) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	378 context->requested_format = SF_ABSOLUTE;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	379 }
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	380 if (!context->toc_valid) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	381 context->error_status = DS_CMD_ERROR;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	382 break;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	383 }
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	384 uint32_t lba = context->cmd_buffer.b.time.min_high * 10 + context->cmd_buffer.b.time.min_low;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	385 lba *= 60;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	386 lba += context->cmd_buffer.b.time.sec_high * 10 + context->cmd_buffer.b.time.sec_low;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	387 lba *= 75;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	388 lba += context->cmd_buffer.b.time.frame_high * 10 + context->cmd_buffer.b.time.frame_low;
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	389 printf("CDD CMD: %s cmd for lba %d, MM:SS:FF %u%u:%u%u:%u%u\n",
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	390 context->cmd_buffer.cmd_type == CMD_READ ? "READ" : "SEEK", lba,
2065 02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	391 context->cmd_buffer.b.time.min_high, context->cmd_buffer.b.time.min_low,
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	392 context->cmd_buffer.b.time.sec_high, context->cmd_buffer.b.time.sec_low,
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	393 context->cmd_buffer.b.time.frame_high, context->cmd_buffer.b.time.frame_low
02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements Michael Pavone <pavone@retrodev.com> parents: 2064 diff changeset	394 );
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	395 if (lba >= context->media->tracks[0].fake_pregap + context->media->tracks[context->media->num_tracks - 1].end_lba) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	396 context->error_status = DS_CMD_ERROR;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	397 break;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	398 }
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	399 context->seek_pba = lba + LEADIN_SECTORS - 4;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	400 context->seeking = 1;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	401 context->status = context->cmd_buffer.cmd_type == CMD_READ ? DS_PLAY : DS_PAUSE;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	402 break;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	403 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	404 case CMD_REPORT_REQUEST:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	405 switch (context->cmd_buffer.b.format.status_type)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	406 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	407 case SF_ABSOLUTE:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	408 case SF_RELATIVE:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	409 case SF_TRACK:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	410 context->requested_format = context->cmd_buffer.b.format.status_type;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	411 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	412 case SF_TOCO:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	413 if (context->toc_valid) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	414 context->requested_format = SF_TOCO;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	415 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	416 context->error_status = DS_CMD_ERROR;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	417 context->requested_format = SF_ABSOLUTE;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	418 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	419 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	420 case SF_TOCT:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	421 if (context->toc_valid) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	422 if (context->status == DS_STOP) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	423 context->status = DS_TOC_READ;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	424 context->seeking = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	425 context->seek_pba = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	426 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	427 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	428 context->status = DS_TOC_READ;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	429 context->seeking = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	430 context->seek_pba = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	431 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	432 context->requested_format = SF_TOCT;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	433 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	434 case SF_TOCN:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	435 context->requested_track = context->cmd_buffer.b.format.track_high * 10;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	436 context->requested_track += context->cmd_buffer.b.format.track_low;
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	437 if (!context->media \|\| context->requested_track > context->media->num_tracks) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	438 context->requested_format = SF_ABSOLUTE;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	439 context->error_status = DS_CMD_ERROR;
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	440 break;
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	441 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	442 context->status = DS_TOC_READ;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	443 context->seeking = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	444 context->seek_pba = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	445 context->requested_format = SF_TOCN;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	446 break;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	447 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	448 printf("CDD CMD: REPORT REQUEST(%d), format set to %d\n", context->cmd_buffer.b.format.status_type, context->requested_format);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	449 break;
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	450 case CMD_PAUSE:
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	451 if (context->status == DS_DOOR_OPEN \|\| context->status == DS_TRAY_MOVING \|\| context->status == DS_DISC_LEADOUT \|\| context->status == DS_DISC_LEADIN) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	452 context->error_status = DS_CMD_ERROR;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	453 break;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	454 }
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	455 if (context->requested_format == SF_TOCT \|\| context->requested_format == SF_TOCN) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	456 context->requested_format = SF_ABSOLUTE;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	457 }
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	458 if (!context->toc_valid) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	459 context->error_status = DS_CMD_ERROR;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	460 break;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	461 }
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	462 if (context->status == DS_STOP) {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	463 context->seeking = 1;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	464 context->seek_pba = LEADIN_SECTORS + context->media->tracks[0].fake_pregap + context->media->tracks[0].start_lba;
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	465 printf("CDD CMD: PAUSE, seeking to %u\n", context->seek_pba);
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	466 } else {
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	467 puts("CDD CMD: PAUSE");
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	468 }
f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	469 context->status = DS_PAUSE;
2095 c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	470 if (!context->seeking) {
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	471 context->pause_pba = context->head_pba;
c732dcc9c61b Better simulation of CDD pause behavior Michael Pavone <pavone@retrodev.com> parents: 2089 diff changeset	472 }
2067 f22e04b69272 More CDC/CDD improvements Michael Pavone <pavone@retrodev.com> parents: 2065 diff changeset	473 break;
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	474 case CMD_PLAY:
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	475 if (context->status == DS_DOOR_OPEN \|\| context->status == DS_TRAY_MOVING \|\| context->status == DS_DISC_LEADOUT \|\| context->status == DS_DISC_LEADIN) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	476 context->error_status = DS_CMD_ERROR;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	477 break;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	478 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	479 if (context->requested_format == SF_TOCT \|\| context->requested_format == SF_TOCN) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	480 context->requested_format = SF_ABSOLUTE;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	481 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	482 if (!context->toc_valid) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	483 context->error_status = DS_CMD_ERROR;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	484 break;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	485 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	486 if (context->status == DS_STOP \|\| context->status == DS_TOC_READ) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	487 context->seeking = 1;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	488 context->seek_pba = LEADIN_SECTORS + context->media->tracks[0].fake_pregap + context->media->tracks[0].start_lba;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	489 printf("CDD CMD: PAUSE, seeking to %u\n", context->seek_pba);
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	490 } else {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	491 puts("CDD CMD: PAUSE");
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	492 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	493 break;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	494 //TODO: CMD_FFWD, CMD_RWD
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	495 case CMD_TRACK_SKIP:
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	496 if (context->status != DS_PLAY && context->status != DS_PAUSE && context->status != DS_DISC_LEADOUT) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	497 context->error_status = DS_CMD_ERROR;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	498 break;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	499 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	500 if (context->requested_format == SF_TOCT \|\| context->requested_format == SF_TOCN) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	501 context->requested_format = SF_ABSOLUTE;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	502 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	503 if (!context->toc_valid) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	504 context->error_status = DS_CMD_ERROR;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	505 break;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	506 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	507 {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	508 int32_t to_skip = context->cmd_buffer.b.skip.tracks_highest << 12 \| context->cmd_buffer.b.skip.tracks_midhigh << 8
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	509 \| context->cmd_buffer.b.skip.tracks_midlow << 4 \| context->cmd_buffer.b.skip.tracks_lowest;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	510 if (context->cmd_buffer.b.skip.direction) {
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	511 to_skip = -to_skip;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	512 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	513 printf("CDD CMD: TRACK_SKIP direction %u, num_tracks %i, delta %i\n", context->cmd_buffer.b.skip.direction, abs(to_skip), to_skip);
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	514 //circumference at 83mm point (roughly half way between inner and outer edge of program area)
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	515 //~ 260.75cm ~ 15 sectors
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	516 context->seek_pba = context->head_pba + to_skip * 15;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	517 context->seeking = 1;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	518 }
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	519 context->status = DS_TRACKING;
c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	520 break;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	521 default:
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	522 printf("CDD CMD: Unimplemented(%d)\n", context->cmd_buffer.cmd_type);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	523 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	524 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	525
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	526 void cdd_mcu_run(cdd_mcu context, uint32_t cycle, uint16_t gate_array, lc8951* cdc, cdd_fader* fader)
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	527 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	528 uint32_t cd_cycle = mclks_to_cd_block(cycle);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	529 if (!(gate_array[GAO_CDD_CTRL] & BIT_HOCK)) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	530 //it's a little unclear if this gates the actual cd block clock or just handshaking
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	531 //assum it's actually the clock for now
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	532 for (; context->cycle < cd_cycle; context->cycle += CDD_MCU_DIVIDER) {
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	533 if (context->cycle >= context->next_byte_cycle) {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	534 cdd_fader_data(fader, 0);
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	535 context->next_byte_cycle += BYTE_CLOCKS;
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	536 }
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	537 }
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	538 gate_array[GAO_CDD_CTRL] \|= BIT_MUTE;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	539 return;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	540 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	541 uint32_t next_subcode = context->last_subcode_cycle + SECTOR_CLOCKS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	542 uint32_t next_nibble = context->current_status_nibble >= 0 ? context->last_nibble_cycle + NIBBLE_CLOCKS : CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	543 uint32_t next_cmd_nibble = context->current_cmd_nibble >= 0 ? context->last_nibble_cycle + NIBBLE_CLOCKS : CYCLE_NEVER;
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	544
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	545 for (; context->cycle < cd_cycle; context->cycle += CDD_MCU_DIVIDER)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	546 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	547 if (context->cycle >= next_subcode) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	548 context->last_subcode_cycle = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	549 next_subcode = context->cycle + SECTOR_CLOCKS;
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	550 update_status(context, gate_array);
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	551 next_nibble = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	552 context->current_status_nibble = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	553 gate_array[GAO_CDD_STATUS] \|= BIT_DRS;
2084 c9d3b8e1ea56 Implement a couple more CDD commands force CDDA mute when seeking Michael Pavone <pavone@retrodev.com> parents: 2081 diff changeset	554 if ((context->status == DS_PLAY \|\| context->status == DS_PAUSE) && context->head_pba >= LEADIN_SECTORS) {
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	555 context->current_sector_byte = 0;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	556 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	557 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	558 if (context->cycle >= next_nibble) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	559 if (context->current_status_nibble == sizeof(cdd_status)) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	560 context->current_status_nibble = -1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	561 gate_array[GAO_CDD_STATUS] &= ~BIT_DRS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	562 if (context->cmd_recv_pending) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	563 context->cmd_recv_pending = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	564 context->current_cmd_nibble = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	565 gate_array[GAO_CDD_STATUS] \|= BIT_DTS;
2075 983f57d08eff Fix a couple of CDD bugs Michael Pavone <pavone@retrodev.com> parents: 2073 diff changeset	566 next_cmd_nibble = context->cycle + NIBBLE_CLOCKS;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	567 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	568 context->cmd_recv_wait = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	569 }
2075 983f57d08eff Fix a couple of CDD bugs Michael Pavone <pavone@retrodev.com> parents: 2073 diff changeset	570 next_nibble = CYCLE_NEVER;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	571 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	572 uint8_t value = ((uint8_t *)&context->status_buffer)[context->current_status_nibble];
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	573 int ga_index = GAO_CDD_STATUS + (context->current_status_nibble >> 1);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	574 if (context->current_status_nibble & 1) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	575 gate_array[ga_index] = value \| (gate_array[ga_index] & 0xFF00);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	576 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	577 gate_array[ga_index] = (value << 8) \| (gate_array[ga_index] & 0x00FF);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	578 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	579 if (context->current_status_nibble == 7) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	580 context->int_pending = 1;
2078 c534a3199020 Fix CDD int cycle calculation Michael Pavone <pavone@retrodev.com> parents: 2076 diff changeset	581 context->next_int_cycle = cd_block_to_mclks(context->cycle + SECTOR_CLOCKS);
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	582 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	583 context->current_status_nibble++;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	584 context->last_nibble_cycle = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	585 next_nibble = context->cycle + NIBBLE_CLOCKS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	586 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	587 } else if (context->cycle >= next_cmd_nibble) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	588 if (context->current_cmd_nibble == sizeof(cdd_cmd)) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	589 next_cmd_nibble = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	590 context->current_cmd_nibble = -1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	591 gate_array[GAO_CDD_STATUS] &= ~BIT_DTS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	592 run_command(context);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	593 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	594 int ga_index = GAO_CDD_CMD + (context->current_cmd_nibble >> 1);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	595 uint8_t value = (context->current_cmd_nibble & 1) ? gate_array[ga_index] : gate_array[ga_index] >> 8;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	596 ((uint8_t *)&context->cmd_buffer)[context->current_cmd_nibble] = value;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	597 context->current_cmd_nibble++;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	598 context->last_nibble_cycle = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	599 next_cmd_nibble = context->cycle + NIBBLE_CLOCKS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	600 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	601 }
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	602 if (context->cycle >= context->next_byte_cycle) {
2080 bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	603 if (context->current_sector_byte >= 0) {
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	604 uint8_t byte = context->media->read(context->media, context->current_sector_byte);
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	605 lc8951_write_byte(cdc, cd_block_to_mclks(context->cycle), context->current_sector_byte++, byte);
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	606 cdd_fader_data(fader, gate_array[GAO_CDD_CTRL] & BIT_MUTE ? 0 : byte);
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	607 } else {
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	608 cdd_fader_data(fader, 0);
bafb757e1cd2 Implement CD audio Michael Pavone <pavone@retrodev.com> parents: 2079 diff changeset	609 }
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	610 if (context->current_sector_byte == 2352) {
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	611 context->current_sector_byte = -1;
07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	612 }
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	613 context->next_byte_cycle += BYTE_CLOCKS;
2062 07ed42bd7b4c Some progress on CDC and CDD emulation. Now passes first 3 "CDC INIT" tests in mcd-verificator Michael Pavone <pavone@retrodev.com> parents: 2061 diff changeset	614 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	615 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	616 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	617
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	618 void cdd_mcu_start_cmd_recv(cdd_mcu context, uint16_t gate_array)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	619 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	620 if (context->cmd_recv_wait) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	621 context->current_cmd_nibble = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	622 gate_array[GAO_CDD_STATUS] \|= BIT_DTS;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	623 context->last_nibble_cycle = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	624 context->cmd_recv_wait = 0;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	625 } else {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	626 context->cmd_recv_pending = 1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	627 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	628 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	629
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	630 void cdd_hock_enabled(cdd_mcu *context)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	631 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	632 context->last_subcode_cycle = context->cycle;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	633 context->next_int_cycle = cd_block_to_mclks(context->cycle + SECTOR_CLOCKS + 7 * NIBBLE_CLOCKS);
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	634 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	635
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	636 void cdd_hock_disabled(cdd_mcu *context)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	637 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	638 context->last_subcode_cycle = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	639 context->next_int_cycle = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	640 context->last_nibble_cycle = CYCLE_NEVER;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	641 context->current_status_nibble = -1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	642 context->current_cmd_nibble = -1;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	643 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	644
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	645 void cdd_mcu_adjust_cycle(cdd_mcu *context, uint32_t deduction)
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	646 {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	647 uint32_t cd_deduction = mclks_to_cd_block(deduction);
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	648 if (context->cycle > cd_deduction) {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	649 context->cycle -= cd_deduction;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	650 } else {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	651 context->cycle = 0;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	652 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	653 if (context->next_int_cycle != CYCLE_NEVER) {
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	654 context->next_int_cycle -= deduction;
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	655 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	656 if (context->last_subcode_cycle != CYCLE_NEVER) {
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	657 if (context->last_subcode_cycle > cd_deduction) {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	658 context->last_subcode_cycle -= cd_deduction;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	659 } else {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	660 context->last_subcode_cycle = 0;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	661 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	662 }
7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	663 if (context->last_nibble_cycle != CYCLE_NEVER) {
2073 c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	664 if (context->last_nibble_cycle > cd_deduction) {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	665 context->last_nibble_cycle -= cd_deduction;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	666 } else {
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	667 context->last_nibble_cycle = 0;
c69e42444f96 Fix some cycle adjustment stuff and an off-by one on hte TOCT response Michael Pavone <pavone@retrodev.com> parents: 2067 diff changeset	668 }
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	669 }
2089 0db3af42dd72 Fix some byte order stuff for audio tracks Michael Pavone <pavone@retrodev.com> parents: 2084 diff changeset	670 context->next_byte_cycle -= deduction;
2061 7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU Michael Pavone <pavone@retrodev.com> parents: diff changeset	671 }

Mercurial > repos > blastem

annotate cdd_mcu.c @ 2095:c732dcc9c61b