5 // Created by Matt Parsons on 06/03/2019.
6 // Copyright © 2019 Matt Parsons. All rights reserved.
9 // Write Byte to Gayle Space 0xda9000 (0x0000c3)
10 // Read Byte From Gayle Space 0xda9000
11 // Read Byte From Gayle Space 0xdaa000
20 #define CLOCKBASE 0xDC0000
22 //#define GSTATUS 0xda201c
23 //#define GCLOW 0xda2010
24 //#define GDH 0xda2018
29 #define GERROR 0xda2004 // Error
30 #define GSTATUS 0xda201c // Status
32 #define GFEAT 0xda2004 // Write : Feature
33 #define GCMD 0xda201c // Write : Command
35 #define GDATA 0xda2000 // Data
36 #define GSECTCNT 0xda2008 // SectorCount
37 #define GSECTNUM 0xda200c // SectorNumber
38 #define GCYLLOW 0xda2010 // CylinderLow
39 #define GCYLHIGH 0xda2014 // CylinderHigh
40 #define GDEVHEAD 0xda2018 // Device/Head
41 #define GCTRL 0xda3018 // Control
43 #define GIDENT 0xDE1000
46 #define GCS 0xDA8000 // Card Control
47 #define GIRQ 0xDA9000 // IRQ
48 #define GINT 0xDAA000 // Int enable
49 #define GCONF 0xDAB00 // Gayle Config
52 #define GAYLE_CS_IDE 0x80 /* IDE int status */
53 #define GAYLE_CS_CCDET 0x40 /* credit card detect */
54 #define GAYLE_CS_BVD1 0x20 /* battery voltage detect 1 */
55 #define GAYLE_CS_SC 0x20 /* credit card status change */
56 #define GAYLE_CS_BVD2 0x10 /* battery voltage detect 2 */
57 #define GAYLE_CS_DA 0x10 /* digital audio */
58 #define GAYLE_CS_WR 0x08 /* write enable (1 == enabled) */
59 #define GAYLE_CS_BSY 0x04 /* credit card busy */
60 #define GAYLE_CS_IRQ 0x04 /* interrupt request */
61 #define GAYLE_CS_DAEN 0x02 /* enable digital audio */
62 #define GAYLE_CS_DIS 0x01 /* disable PCMCIA slot */
65 #define GAYLE_IRQ_IDE 0x80
66 #define GAYLE_IRQ_CCDET 0x40 /* credit card detect */
67 #define GAYLE_IRQ_BVD1 0x20 /* battery voltage detect 1 */
68 #define GAYLE_IRQ_SC 0x20 /* credit card status change */
69 #define GAYLE_IRQ_BVD2 0x10 /* battery voltage detect 2 */
70 #define GAYLE_IRQ_DA 0x10 /* digital audio */
71 #define GAYLE_IRQ_WR 0x08 /* write enable (1 == enabled) */
72 #define GAYLE_IRQ_BSY 0x04 /* credit card busy */
73 #define GAYLE_IRQ_IRQ 0x04 /* interrupt request */
74 #define GAYLE_IRQ_RESET 0x02 /* reset machine after CCDET change */
75 #define GAYLE_IRQ_BERR 0x01 /* generate bus error after CCDET change */
78 #define GAYLE_INT_IDE 0x80 /* IDE interrupt enable */
79 #define GAYLE_INT_CCDET 0x40 /* credit card detect change enable */
80 #define GAYLE_INT_BVD1 0x20 /* battery voltage detect 1 change enable */
81 #define GAYLE_INT_SC 0x20 /* credit card status change enable */
82 #define GAYLE_INT_BVD2 0x10 /* battery voltage detect 2 change enable */
83 #define GAYLE_INT_DA 0x10 /* digital audio change enable */
84 #define GAYLE_INT_WR 0x08 /* write enable change enabled */
85 #define GAYLE_INT_BSY 0x04 /* credit card busy */
86 #define GAYLE_INT_IRQ 0x04 /* credit card interrupt request */
87 #define GAYLE_INT_BVD_LEV 0x02 /* BVD int level, 0=lev2,1=lev6 */
88 #define GAYLE_INT_BSY_LEV 0x01 /* BSY int level, 0=lev2,1=lev6 */
91 static uint8_t gayle_irq, gayle_int, gayle_cs, gayle_cs_mask, gayle_cfg;
92 static struct ide_controller *ide0;
95 void InitGayle(void) {
96 ide0 = ide_allocate("cf");
97 fd = open("hd0.img", O_RDWR);
99 printf("HDD Image hd0.image failed open\n");
101 ide_attach(ide0, 0, fd);
102 ide_reset_begin(ide0);
103 printf("HDD Image hd0.image attached\n");
107 uint8_t CheckIrq(void) {
110 if (gayle_int & (1 << 7)) {
111 irq = ide0->drive->intrq;
113 // printf("IDE IRQ: %x\n",irq);
119 void writeGayleB(unsigned int address, unsigned int value) {
120 if (address == GFEAT) {
121 ide_write8(ide0, ide_feature_w, value);
124 if (address == GCMD) {
125 ide_write8(ide0, ide_command_w, value);
128 if (address == GSECTCNT) {
129 ide_write8(ide0, ide_sec_count, value);
132 if (address == GSECTNUM) {
133 ide_write8(ide0, ide_sec_num, value);
136 if (address == GCYLLOW) {
137 ide_write8(ide0, ide_cyl_low, value);
140 if (address == GCYLHIGH) {
141 ide_write8(ide0, ide_cyl_hi, value);
144 if (address == GDEVHEAD) {
145 ide_write8(ide0, ide_dev_head, value);
148 if (address == GCTRL) {
149 ide_write8(ide0, ide_devctrl_w, value);
153 if (address == GIDENT) {
155 // printf("Write Byte to Gayle Ident 0x%06x (0x%06x)\n",address,value);
159 if (address == GIRQ) {
160 // printf("Write Byte to Gayle GIRQ 0x%06x (0x%06x)\n",address,value);
161 gayle_irq = (gayle_irq & value) | (value & (GAYLE_IRQ_RESET | GAYLE_IRQ_BERR));
166 if (address == GCS) {
167 printf("Write Byte to Gayle GCS 0x%06x (0x%06x)\n", address, value);
168 gayle_cs_mask = value & ~3;
170 gayle_cs |= value & 3;
174 if (address == GINT) {
175 printf("Write Byte to Gayle GINT 0x%06x (0x%06x)\n", address, value);
180 if (address == GCONF) {
181 printf("Write Byte to Gayle GCONF 0x%06x (0x%06x)\n", address, value);
186 printf("Write Byte to Gayle Space 0x%06x (0x%06x)\n", address, value);
189 void writeGayle(unsigned int address, unsigned int value) {
190 if (address == GDATA) {
191 ide_write16(ide0, ide_data, value);
195 printf("Write Word to Gayle Space 0x%06x (0x%06x)\n", address, value);
198 void writeGayleL(unsigned int address, unsigned int value) {
199 printf("Write Long to Gayle Space 0x%06x (0x%06x)\n", address, value);
202 uint8_t readGayleB(unsigned int address) {
203 if (address == GERROR) {
204 return ide_read8(ide0, ide_error_r);
206 if (address == GSTATUS) {
207 return ide_read8(ide0, ide_status_r);
210 if (address == GSECTCNT) {
211 return ide_read8(ide0, ide_sec_count);
214 if (address == GSECTNUM) {
215 return ide_read8(ide0, ide_sec_num);
218 if (address == GCYLLOW) {
219 return ide_read8(ide0, ide_cyl_low);
222 if (address == GCYLHIGH) {
223 return ide_read8(ide0, ide_cyl_hi);
226 if (address == GDEVHEAD) {
227 return ide_read8(ide0, ide_dev_head);
230 if (address == GCTRL) {
231 return ide_read8(ide0, ide_altst_r);
234 if (address == GIDENT) {
236 // printf("Read Byte from Gayle Ident 0x%06x (0x%06x)\n",address,counter);
237 if (counter == 0 || counter == 1 || counter == 3) {
238 val = 0x80; // 80; to enable gayle
246 if (address == GIRQ) {
247 // printf("Read Byte From GIRQ Space 0x%06x\n",gayle_irq);
249 return 0x80;//gayle_irq;
252 irq = ide0->drive->intrq;
255 // printf("IDE IRQ: %x\n",irq);
256 return 0x80; // gayle_irq;
263 if (address == GCS) {
264 printf("Read Byte From GCS Space 0x%06x\n", 0x1234);
266 v = gayle_cs_mask | gayle_cs;
270 if (address == GINT) {
271 // printf("Read Byte From GINT Space 0x%06x\n",gayle_int);
275 if (address == GCONF) {
276 printf("Read Byte From GCONF Space 0x%06x\n", gayle_cfg & 0x0f);
277 return gayle_cfg & 0x0f;
280 printf("Read Byte From Gayle Space 0x%06x\n", address);
284 uint16_t readGayle(unsigned int address) {
285 if (address == GDATA) {
287 value = ide_read16(ide0, ide_data);
288 // value = (value << 8) | (value >> 8);
292 printf("Read Word From Gayle Space 0x%06x\n", address);
296 uint32_t readGayleL(unsigned int address) {
297 printf("Read Long From Gayle Space 0x%06x\n", address);