3 * Copyright (C) 2002 MandrakeSoft S.A.
8 * http://www.linux-mandrake.com/
9 * http://www.mandrakesoft.com/
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 * Major modifications made for the V3VEE project
27 * The V3VEE Project is a joint project between Northwestern University
28 * and the University of New Mexico. You can find out more at
29 * http://www.v3vee.org
31 * Copyright (c) 2008, Zheng Cui <cuizheng@cs.unm.edu>
32 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
33 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
34 * All rights reserved for original changes
39 #include <devices/ramdisk.h>
40 #include <palacios/vmm.h>
41 #include <devices/cdrom.h>
42 #include <devices/ide.h>
47 #define PrintDebug(_f, _a...)
52 * Data type definitions
55 #define INDEX_PULSE_CYCLE 10
60 #define INTR_REASON_BIT_ERR 0x01
61 #define UNABLE_FIND_TAT_CHANNEL_ERR 0x02
63 #define READ_BUF_GT_512 0x04
67 #define PRI_DATA_PORT 0x1f0
68 #define PRI_FEATURES_PORT 0x1f1
69 #define PRI_SECT_CNT_PORT 0x1f2
70 #define PRI_SECT_ADDR1_PORT 0x1f3
71 #define PRI_SECT_ADDR2_PORT 0x1f4
72 #define PRI_SECT_ADDR3_PORT 0x1f5
73 #define PRI_DRV_SEL_PORT 0x1f6
74 #define PRI_CMD_PORT 0x1f7
75 #define PRI_CTRL_PORT 0x3f6
76 #define PRI_ADDR_REG_PORT 0x3f7
78 #define SEC_DATA_PORT 0x170
79 #define SEC_FEATURES_PORT 0x171
80 #define SEC_SECT_CNT_PORT 0x172
81 #define SEC_SECT_ADDR1_PORT 0x173
82 #define SEC_SECT_ADDR2_PORT 0x174
83 #define SEC_SECT_ADDR3_PORT 0x175
84 #define SEC_DRV_SEL_PORT 0x176
85 #define SEC_CMD_PORT 0x177
86 #define SEC_CTRL_PORT 0x376
87 #define SEC_ADDR_REG_PORT 0x377
93 #define PACKET_SIZE 12
100 #define ATA_DETECT 0xf0 //0X3E8
101 #define ATA_RESET 0xf1 //0X3E9
102 #define ATA_CMD_DATA_IN 0xf2 //0X3EA
103 #define ATA_CMD_DATA_OUT 0xf3 //0X3EB
104 #define ATA_CMD_PACKET 0xf4 //0X3EC
105 #define ATAPI_GET_SENSE 0xf5 //0X3ED
106 #define ATAPI_IS_READY 0xf6 //0X3EE
107 #define ATAPI_IS_CDROM 0xf7 //0X3EF
109 #define CDEMU_INIT 0xf8 //0X2E8
110 #define CDEMU_ISACTIVE 0xf9 //0X2E9
111 #define CDEMU_EMULATED_DRIVE 0xfa //0X2EA
112 #define CDROM_BOOT 0xfb //0X2EB
115 #define HARD_DRIVE_POST 0xfc //0X2EC
118 #define ATA_DEVICE_NO 0xfd //0X2ED
119 #define ATA_DEVICE_TYPE 0xfe //0X2ED
121 #define INT13_HARDDISK 0xff //0x2ef
122 #define INT13_CDROM 0xe0 //0x2f8
123 #define INT13_CDEMU 0xe1 //0x2f9
124 #define INT13_ELTORITO 0xe2 //0x2fa
125 #define INT13_DISKETTE_FUNCTION 0xe3 //0x2fb
130 static const char cdrom_str[] = "CD-ROM";
131 static const char harddisk_str[] = "HARDDISK";
132 static const char none_str[] = "NONE";
135 static inline const char * device_type_to_str(device_type_t type) {
149 static inline void write_features(struct channel_t * channel, uchar_t value) {
150 channel->drives[0].controller.features = value;
151 channel->drives[1].controller.features = value;
155 static inline void write_sector_count(struct channel_t * channel, uchar_t value) {
156 channel->drives[0].controller.sector_count = value;
157 channel->drives[1].controller.sector_count = value;
160 static inline void write_sector_number(struct channel_t * channel, uchar_t value) {
161 channel->drives[0].controller.sector_no = value;
162 channel->drives[1].controller.sector_no = value;
166 static inline void write_cylinder_low(struct channel_t * channel, uchar_t value) {
167 channel->drives[0].controller.cylinder_no &= 0xff00;
168 channel->drives[0].controller.cylinder_no |= value;
169 channel->drives[1].controller.cylinder_no &= 0xff00;
170 channel->drives[1].controller.cylinder_no |= value;
173 static inline void write_cylinder_high(struct channel_t * channel, uchar_t value) {
174 ushort_t val2 = value;
176 channel->drives[0].controller.cylinder_no &= 0x00ff;
177 channel->drives[0].controller.cylinder_no |= (val2 & 0xff00);
179 channel->drives[1].controller.cylinder_no &= 0x00ff;
180 channel->drives[1].controller.cylinder_no |= (val2 & 0xff00);
183 static inline void write_head_no(struct channel_t * channel, uchar_t value) {
184 channel->drives[0].controller.head_no = value;
185 channel->drives[1].controller.head_no = value;
188 static inline void write_lba_mode(struct channel_t * channel, uchar_t value) {
189 channel->drives[0].controller.lba_mode = value;
190 channel->drives[1].controller.lba_mode = value;
194 static inline uint_t get_channel_no(struct ramdisk_t * ramdisk, struct channel_t * channel) {
195 return (((uchar_t *)channel - (uchar_t *)(ramdisk->channels)) / sizeof(struct channel_t));
198 static inline uint_t get_drive_no(struct channel_t * channel, struct drive_t * drive) {
199 return (((uchar_t *)drive - (uchar_t*)(channel->drives)) / sizeof(struct drive_t));
202 static inline struct drive_t * get_selected_drive(struct channel_t * channel) {
203 return &(channel->drives[channel->drive_select]);
207 static inline int is_primary_port(struct ramdisk_t * ramdisk, ushort_t port) {
211 case PRI_FEATURES_PORT:
212 case PRI_SECT_CNT_PORT:
213 case PRI_SECT_ADDR1_PORT:
214 case PRI_SECT_ADDR2_PORT:
215 case PRI_SECT_ADDR3_PORT:
216 case PRI_DRV_SEL_PORT:
227 static inline int is_secondary_port(struct ramdisk_t * ramdisk, ushort_t port) {
231 case SEC_FEATURES_PORT:
232 case SEC_SECT_CNT_PORT:
233 case SEC_SECT_ADDR1_PORT:
234 case SEC_SECT_ADDR2_PORT:
235 case SEC_SECT_ADDR3_PORT:
236 case SEC_DRV_SEL_PORT:
245 static inline int num_drives_on_channel(struct channel_t * channel) {
246 if ((channel->drives[0].device_type == IDE_NONE) &&
247 (channel->drives[1].device_type == IDE_NONE)) {
249 } else if ((channel->drives[0].device_type != IDE_NONE) &&
250 (channel->drives[1].device_type != IDE_NONE)) {
259 static inline uchar_t extract_bits(uchar_t * buf, uint_t buf_offset, uint_t bit_offset, uint_t num_bits) {
260 uchar_t val = buf[buf_offset];
261 val = val >> bit_offset;
262 val &= ((1 << num_bits) -1);
267 static inline uchar_t get_packet_field(struct channel_t * channel, uint_t packet_offset, uint_t bit_offset, uint_t num_bits) {
268 struct drive_t * drive = get_selected_drive(channel);
269 return extract_bits(drive->controller.buffer, packet_offset, bit_offset, num_bits);
273 static inline uchar_t get_packet_byte(struct channel_t * channel, uint_t offset) {
274 struct drive_t * drive = get_selected_drive(channel);
275 return drive->controller.buffer[offset];
278 static inline uint16_t get_packet_word(struct channel_t * channel, uint_t offset) {
279 struct drive_t * drive = get_selected_drive(channel);
280 uint16_t val = drive->controller.buffer[offset];
282 val |= drive->controller.buffer[offset + 1];
287 static inline uint16_t rd_read_16bit(const uint8_t* buf) {
288 return (buf[0] << 8) | buf[1];
293 static inline uint32_t rd_read_32bit(const uint8_t* buf) {
294 return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
297 ////////////////////////////////////////////////////////////////////////////
305 static void rd_init_mode_sense_single(struct vm_device * dev, struct channel_t * channel, const void * src, int size);
307 static void rd_command_aborted(struct vm_device * dev, struct channel_t * channel, unsigned value);
312 static int handle_atapi_packet_command(struct vm_device * dev,
313 struct channel_t * channel,
316 static int rd_init_send_atapi_command(struct vm_device * dev,
317 struct channel_t * channel,
318 Bit8u command, int req_length,
319 int alloc_length, bool lazy);
321 static void rd_ready_to_send_atapi(struct vm_device * dev,
322 struct channel_t * channel);
324 static void rd_atapi_cmd_error(struct vm_device * dev,
325 struct channel_t * channel,
326 sense_t sense_key, asc_t asc);
328 static void rd_atapi_cmd_nop(struct vm_device * dev, struct channel_t * channel);
329 static void rd_identify_ATAPI_drive(struct vm_device * dev, struct channel_t * channel);
336 static void rd_raise_interrupt(struct vm_device * dev, struct channel_t * channel);
337 static void rd_lower_irq(struct vm_device *dev, Bit32u irq);
348 static void rd_print_state(struct ramdisk_t *ramdisk);
349 static int check_bit_fields(struct controller_t * controller);
351 ////////////////////////////////////////////////////////////////////
357 int v3_ramdisk_register_cdrom(struct vm_device * dev, uint_t busID, uint_t driveID, struct cdrom_ops* cd, void * private_data) {
358 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
359 struct channel_t * channel = &(ramdisk->channels[busID]);
360 struct drive_t * drive = &(channel->drives[driveID]);
361 struct controller_t * controller = &(drive->controller);
365 if (drive->device_type != IDE_NONE) {
366 PrintError("Device already registered at this location\n");
374 strncpy((char*)(drive->model_no), "V3VEE Ramdisk", 40);
376 while (strlen((char *)(drive->model_no)) < 40) {
377 strcat ((char*)(drive->model_no), " ");
380 PrintDebug("CDROM on target %d/%d\n", busID, driveID);
382 drive->device_type = IDE_CDROM;
383 drive->cdrom.locked = 0;
384 drive->sense.sense_key = SENSE_NONE;
385 drive->sense.asc = 0;
386 drive->sense.ascq = 0;
388 drive->private_data = private_data;
391 if (check_bit_fields(controller) == INTR_REASON_BIT_ERR) {
392 PrintDebug("interrupt reason: bit field error\n");
393 return INTR_REASON_BIT_ERR;
397 controller->sector_count = 0;
399 drive->cdrom.cd = cd;
401 PrintDebug("\t\tCD on ata%d-%d: '%s'\n",
405 if(drive->cdrom.cd->insert_cdrom(drive->private_data)) {
406 PrintDebug("\t\tMedia present in CD-ROM drive\n");
407 drive->cdrom.ready = 1;
408 drive->cdrom.capacity = drive->cdrom.cd->capacity(drive->private_data);
409 PrintDebug("\t\tCDROM capacity is %d\n", drive->cdrom.capacity);
411 PrintDebug("\t\tCould not locate CD-ROM, continuing with media not present\n");
412 drive->cdrom.ready = 0;
419 static Bit32u rd_init_hardware(struct ramdisk_t *ramdisk) {
422 struct channel_t *channels = (struct channel_t *)(&(ramdisk->channels));
424 PrintDebug("[rd_init_harddrive]\n");
426 for (channel_num = 0; channel_num < MAX_ATA_CHANNEL; channel_num++) {
427 memset((char *)(channels + channel_num), 0, sizeof(struct channel_t));
430 for (channel_num = 0; channel_num < MAX_ATA_CHANNEL; channel_num++){
431 struct channel_t * channel = &(channels[channel_num]);
433 channel->ioaddr1 = 0x0;
434 channel->ioaddr2 = 0x0;
437 for (device = 0; device < 2; device++){
438 struct drive_t * drive = &(channel->drives[device]);
439 struct controller_t * controller = &(drive->controller);
441 controller->status.busy = 0;
442 controller->status.drive_ready = 1;
443 controller->status.write_fault = 0;
444 controller->status.seek_complete = 1;
445 controller->status.drq = 0;
446 controller->status.corrected_data = 0;
447 controller->status.index_pulse = 0;
448 controller->status.index_pulse_count = 0;
449 controller->status.err = 0;
451 controller->error_register = 0x01; // diagnostic code: no error
452 controller->head_no = 0;
453 controller->sector_count = 1;
454 controller->sector_no = 1;
455 controller->cylinder_no = 0;
456 controller->current_command = 0x00;
457 controller->buffer_index = 0;
459 controller->control.reset = 0;
460 controller->control.disable_irq = 0;
461 controller->reset_in_progress = 0;
463 controller->sectors_per_block = 0x80;
464 controller->lba_mode = 0;
467 controller->features = 0;
470 drive->device_type = IDE_NONE;
473 strncpy((char*)(drive->model_no), "", 40);
474 while(strlen((char *)(drive->model_no)) < 40) {
475 strcat ((char*)(drive->model_no), " ");
482 rd_print_state(ramdisk);
489 static void rd_reset_harddrive(struct ramdisk_t *ramdisk, unsigned type) {
494 static void rd_close_harddrive(struct ramdisk_t *ramdisk) {
499 ////////////////////////////////////////////////////////////////////
503 static int read_data_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
504 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
505 struct channel_t * channel = NULL;
506 struct drive_t * drive = NULL;
507 struct controller_t * controller = NULL;
511 if (is_primary_port(ramdisk, port)) {
512 channel = &(ramdisk->channels[0]);
513 } else if (is_secondary_port(ramdisk, port)) {
514 channel = &(ramdisk->channels[1]);
516 PrintError("Invalid Port: %d\n", port);
520 drive = get_selected_drive(channel);
521 controller = &(drive->controller);
524 PrintDebug("[read_data_handler] IO Read at 0x%x, on drive %d/%d (current_cmd = 0x%02x)\n",
526 get_channel_no(ramdisk, channel),
527 get_drive_no(channel, drive),
528 controller->current_command);
530 switch (controller->current_command) {
531 case 0xec: // IDENTIFY DEVICE
536 controller->status.busy = 0;
537 controller->status.drive_ready = 1;
538 controller->status.write_fault = 0;
539 controller->status.seek_complete = 1;
540 controller->status.corrected_data = 0;
541 controller->status.err = 0;
544 value32 = controller->buffer[index];
548 value32 |= (controller->buffer[index] << 8);
553 value32 |= (controller->buffer[index] << 16);
554 value32 |= (controller->buffer[index+1] << 24);
558 controller->buffer_index = index;
561 memcpy(dst, controller->buffer + controller->buffer_index, length);
562 controller->buffer_index += length;
564 if (controller->buffer_index >= 512) {
565 controller->status.drq = 0;
570 case 0xa0: //send packet cmd
572 uint_t index = controller->buffer_index;
575 PrintDebug("\t\tatapi.command(%02x), index(%d), cdrom.remaining_blocks(%d)\n",
576 drive->atapi.command,
578 drive->cdrom.remaining_blocks);
580 // Load block if necessary
584 PrintError("\t\tindex > 2048 : 0x%x\n", index);
588 switch (drive->atapi.command) {
589 case 0x28: // read (10)
590 case 0xa8: // read (12)
593 if (!(drive->cdrom.ready)) {
594 PrintError("\t\tRead with CDROM not ready\n");
598 drive->cdrom.cd->read_block(drive->private_data, controller->buffer,
599 drive->cdrom.next_lba);
600 drive->cdrom.next_lba++;
601 drive->cdrom.remaining_blocks--;
604 if (!(drive->cdrom.remaining_blocks)) {
605 PrintDebug("\t\tLast READ block loaded {CDROM}\n");
607 PrintDebug("\t\tREAD block loaded (%d remaining) {CDROM}\n",
608 drive->cdrom.remaining_blocks);
611 // one block transfered, start at beginning
615 default: // no need to load a new block
623 value32 = controller->buffer[index + increment];
627 value32 |= (controller->buffer[index + increment] << 8);
632 value32 |= (controller->buffer[index + increment] << 16);
633 value32 |= (controller->buffer[index + increment + 1] << 24);
637 controller->buffer_index = index + increment;
638 controller->drq_index += increment;
641 /* JRL: CHECK THAT there is enough data in the buffer to copy.... */
643 memcpy(dst, controller->buffer + index, length);
645 controller->buffer_index = index + length;
646 controller->drq_index += length;
651 if (controller->drq_index >= (unsigned)drive->atapi.drq_bytes) {
652 controller->status.drq = 0;
653 controller->drq_index = 0;
655 drive->atapi.total_bytes_remaining -= drive->atapi.drq_bytes;
657 if (drive->atapi.total_bytes_remaining > 0) {
658 // one or more blocks remaining (works only for single block commands)
660 PrintDebug("\t\tPACKET drq bytes read\n");
661 controller->interrupt_reason.i_o = 1;
662 controller->status.busy = 0;
663 controller->status.drq = 1;
664 controller->interrupt_reason.c_d = 0;
666 // set new byte count if last block
667 if (drive->atapi.total_bytes_remaining < controller->byte_count) {
668 controller->byte_count = drive->atapi.total_bytes_remaining;
670 drive->atapi.drq_bytes = controller->byte_count;
672 rd_raise_interrupt(dev, channel);
675 PrintDebug("\t\tPACKET all bytes read\n");
677 controller->interrupt_reason.i_o = 1;
678 controller->interrupt_reason.c_d = 1;
679 controller->status.drive_ready = 1;
680 controller->interrupt_reason.rel = 0;
681 controller->status.busy = 0;
682 controller->status.drq = 0;
683 controller->status.err = 0;
685 rd_raise_interrupt(dev, channel);
693 PrintDebug("\t\tread need support more command: %02x\n", controller->current_command);
703 static int write_data_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
704 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
705 struct channel_t * channel = NULL;
706 struct drive_t * drive = NULL;
707 struct controller_t * controller = NULL;
709 if (is_primary_port(ramdisk, port)) {
710 channel = &(ramdisk->channels[0]);
711 } else if (is_secondary_port(ramdisk, port)) {
712 channel = &(ramdisk->channels[1]);
714 PrintError("Invalid Port: %d\n", port);
718 drive = get_selected_drive(channel);
719 controller = &(drive->controller);
721 PrintDebug("[write_data_handler] IO write at 0x%x, current_cmd = 0x%02x\n",
722 port, controller->current_command);
724 switch (controller->current_command) {
725 case 0x30: // WRITE SECTORS
726 PrintError("\t\tneed to implement 0x30(write sector) to port 0x%x\n", port);
731 if (handle_atapi_packet_command(dev, channel, *(ushort_t *)src) == -1) {
738 PrintError("\t\tIO write(0x%x): current command is %02xh\n",
739 port, controller->current_command);
751 static int read_status_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
752 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
753 struct channel_t * channel = NULL;
754 struct drive_t * drive = NULL;
755 struct controller_t * controller = NULL;
759 PrintError("Invalid Status port read length: %d (port=%d)\n", length, port);
763 if (is_primary_port(ramdisk, port)) {
764 channel = &(ramdisk->channels[0]);
765 } else if (is_secondary_port(ramdisk, port)) {
766 channel = &(ramdisk->channels[1]);
768 PrintError("Invalid Port: %d\n", port);
772 drive = get_selected_drive(channel);
773 controller = &(drive->controller);
775 PrintDebug("[read_status_handler] IO read at 0x%x, on drive %d/%d\n",
776 port, get_channel_no(ramdisk, channel),
777 channel->drive_select);
780 if (num_drives_on_channel(channel) == 0) {
781 // (mch) Just return zero for these registers
782 memset(dst, 0, length);
786 (controller->status.busy << 7) |
787 (controller->status.drive_ready << 6) |
788 (controller->status.write_fault << 5) |
789 (controller->status.seek_complete << 4) |
790 (controller->status.drq << 3) |
791 (controller->status.corrected_data << 2) |
792 (controller->status.index_pulse << 1) |
793 (controller->status.err) );
795 memcpy(dst, &val, length);
797 controller->status.index_pulse_count++;
798 controller->status.index_pulse = 0;
800 if (controller->status.index_pulse_count >= INDEX_PULSE_CYCLE) {
801 controller->status.index_pulse = 1;
802 controller->status.index_pulse_count = 0;
806 if ((port == SEC_CMD_PORT) || (port == PRI_CMD_PORT)) {
807 rd_lower_irq(dev, channel->irq);
815 static int write_cmd_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
816 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
817 struct channel_t * channel = NULL;
818 struct drive_t * drive = NULL;
819 struct controller_t * controller = NULL;
820 uchar_t value = *(uchar_t *)src;
823 PrintError("Invalid Command port write length: %d (port=%d)\n", length, port);
827 if (is_primary_port(ramdisk, port)) {
828 channel = &(ramdisk->channels[0]);
829 } else if (is_secondary_port(ramdisk, port)) {
830 channel = &(ramdisk->channels[1]);
832 PrintError("Invalid Port: %d\n", port);
836 drive = get_selected_drive(channel);
837 controller = &(drive->controller);
840 PrintDebug("[write_command_handler] IO write at 0x%x, on drive %d/%d (val = 0x%x)\n",
841 port, get_channel_no(ramdisk, channel),
842 channel->drive_select,
847 case 0xa1: // IDENTIFY PACKET DEVICE
849 if (drive->device_type == IDE_CDROM) {
850 controller->current_command = value;
851 controller->error_register = 0;
853 controller->status.busy = 0;
854 controller->status.drive_ready = 1;
855 controller->status.write_fault = 0;
856 controller->status.drq = 1;
857 controller->status.err = 0;
859 controller->status.seek_complete = 1;
860 controller->status.corrected_data = 0;
862 controller->buffer_index = 0;
863 rd_raise_interrupt(dev, channel);
864 rd_identify_ATAPI_drive(dev, channel);
866 rd_command_aborted(dev, channel, 0xa1);
870 case 0xa0: // SEND PACKET (atapi)
872 if (drive->device_type == IDE_CDROM) {
875 if (controller->features & (1 << 0)) {
876 PrintError("\t\tPACKET-DMA not supported");
880 if (controller->features & (1 << 1)) {
881 PrintError("\t\tPACKET-overlapped not supported");
885 // We're already ready!
886 controller->sector_count = 1;
887 controller->status.busy = 0;
888 controller->status.write_fault = 0;
891 controller->status.drq = 1;
892 controller->status.err = 0;
894 // NOTE: no interrupt here
895 controller->current_command = value;
896 controller->buffer_index = 0;
898 rd_command_aborted (dev, channel, 0xa0);
903 PrintError("\t\tneed translate command %2x\n", value);
905 /* JRL THIS NEEDS TO CHANGE */
913 static int write_ctrl_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
914 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
915 struct channel_t * channel = NULL;
916 struct drive_t * master_drive = NULL;
917 struct drive_t * slave_drive = NULL;
918 struct controller_t * controller = NULL;
919 uchar_t value = *(uchar_t *)src;
920 rd_bool prev_control_reset;
923 PrintError("Invalid Status port read length: %d (port=%d)\n", length, port);
927 if (is_primary_port(ramdisk, port)) {
928 channel = &(ramdisk->channels[0]);
929 } else if (is_secondary_port(ramdisk, port)) {
930 channel = &(ramdisk->channels[1]);
932 PrintError("Invalid Port: %d\n", port);
936 master_drive = &(channel->drives[0]);
937 slave_drive = &(channel->drives[1]);
939 controller = &(get_selected_drive(channel)->controller);
942 PrintDebug("[write_control_handler] IO write at 0x%x, on drive %d/%d (val = 0x%x)\n",
943 port, get_channel_no(ramdisk, channel),
944 channel->drive_select,
947 // (mch) Even if device 1 was selected, a write to this register
948 // goes to device 0 (if device 1 is absent)
950 prev_control_reset = controller->control.reset;
952 master_drive->controller.control.reset = value & 0x04;
953 slave_drive->controller.control.reset = value & 0x04;
955 // CGS: was: SELECTED_CONTROLLER(channel).control.disable_irq = value & 0x02;
956 master_drive->controller.control.disable_irq = value & 0x02;
957 slave_drive->controller.control.disable_irq = value & 0x02;
959 PrintDebug("\t\tadpater control reg: reset controller = %d\n",
960 (unsigned) (controller->control.reset) ? 1 : 0);
961 PrintDebug("\t\tadpater control reg: disable_irq(X) = %d\n",
962 (unsigned) (controller->control.disable_irq) ? 1 : 0);
964 if ((!prev_control_reset) && (controller->control.reset)) {
967 // transition from 0 to 1 causes all drives to reset
968 PrintDebug("\t\thard drive: RESET\n");
970 // (mch) Set BSY, drive not ready
971 for (id = 0; id < 2; id++) {
972 struct controller_t * ctrl = NULL;
975 ctrl = &(master_drive->controller);
976 } else if (id == 1) {
977 ctrl = &(slave_drive->controller);
980 ctrl->status.busy = 1;
981 ctrl->status.drive_ready = 0;
982 ctrl->reset_in_progress = 1;
984 ctrl->status.write_fault = 0;
985 ctrl->status.seek_complete = 1;
986 ctrl->status.drq = 0;
987 ctrl->status.corrected_data = 0;
988 ctrl->status.err = 0;
990 ctrl->error_register = 0x01; // diagnostic code: no error
992 ctrl->current_command = 0x00;
993 ctrl->buffer_index = 0;
995 ctrl->sectors_per_block = 0x80;
998 ctrl->control.disable_irq = 0;
1001 rd_lower_irq(dev, channel->irq);
1003 } else if ((controller->reset_in_progress) &&
1004 (!controller->control.reset)) {
1006 // Clear BSY and DRDY
1007 PrintDebug("\t\tReset complete {%s}\n", device_type_to_str(get_selected_drive(channel)->device_type));
1009 for (id = 0; id < 2; id++) {
1010 struct controller_t * ctrl = NULL;
1011 struct drive_t * drv = NULL;
1014 ctrl = &(master_drive->controller);
1016 } else if (id == 1) {
1017 ctrl = &(slave_drive->controller);
1021 ctrl->status.busy = 0;
1022 ctrl->status.drive_ready = 1;
1023 ctrl->reset_in_progress = 0;
1026 if (drv->device_type == IDE_DISK) {
1027 PrintDebug("\t\tdrive %d/%d is harddrive\n", get_channel_no(ramdisk, channel), id);
1029 ctrl->sector_count = 1;
1030 ctrl->sector_no = 1;
1031 ctrl->cylinder_no = 0;
1034 ctrl->sector_count = 1;
1035 ctrl->sector_no = 1;
1036 ctrl->cylinder_no = 0xeb14;
1041 PrintDebug("\t\ts[0].controller.control.disable_irq = %02x\n",
1042 master_drive->controller.control.disable_irq);
1043 PrintDebug("\t\ts[1].controller.control.disable_irq = %02x\n",
1044 slave_drive->controller.control.disable_irq);
1049 static int read_general_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
1050 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
1051 struct channel_t * channel = NULL;
1052 struct drive_t * drive = NULL;
1053 struct controller_t * controller = NULL;
1057 PrintError("Invalid Status port read length: %d (port=%d)\n", length, port);
1061 if (is_primary_port(ramdisk, port)) {
1062 channel = &(ramdisk->channels[0]);
1063 } else if (is_secondary_port(ramdisk, port)) {
1064 channel = &(ramdisk->channels[1]);
1066 PrintError("Invalid Port: %d\n", port);
1070 drive = get_selected_drive(channel);
1071 controller = &(drive->controller);
1074 PrintDebug("[read_general_handler] IO read addr at %x, on drive %d/%d, curcmd = %02x\n",
1075 port, get_channel_no(ramdisk, channel),
1076 channel->drive_select,
1077 controller->current_command);
1081 case PRI_FEATURES_PORT:
1082 case SEC_FEATURES_PORT: // hard disk error register 0x1f1
1084 uchar_t val = (drive->device_type == IDE_NONE) ? 0 : controller->error_register;
1086 controller->status.err = 0;
1088 *(uchar_t *)dst = val;
1094 case PRI_SECT_CNT_PORT:
1095 case SEC_SECT_CNT_PORT: // hard disk sector count / interrupt reason 0x1f2
1097 uchar_t val = (drive->device_type == IDE_NONE) ? 0 : controller->sector_count;
1099 *(uchar_t *)dst = val;
1104 case PRI_SECT_ADDR1_PORT:
1105 case SEC_SECT_ADDR1_PORT: // sector number 0x1f3
1107 uchar_t val = (drive->device_type == IDE_NONE) ? 0 : controller->sector_no;
1109 *(uchar_t *)dst = val;
1115 case PRI_SECT_ADDR2_PORT:
1116 case SEC_SECT_ADDR2_PORT: // cylinder low 0x1f4
1118 // -- WARNING : On real hardware the controller registers are shared between drives.
1119 // So we must respond even if the select device is not present. Some OS uses this fact
1120 // to detect the disks.... minix2 for example
1121 uchar_t val = (num_drives_on_channel(channel) == 0) ? 0 : (controller->cylinder_no & 0x00ff);
1123 *(uchar_t *)dst = val;
1129 case PRI_SECT_ADDR3_PORT:
1130 case SEC_SECT_ADDR3_PORT: // cylinder high 0x1f5
1132 // -- WARNING : On real hardware the controller registers are shared between drives.
1133 // So we must respond even if the select device is not present. Some OS uses this fact
1134 // to detect the disks.... minix2 for example
1135 uchar_t val = (num_drives_on_channel(channel) == 0) ? 0 : (controller->cylinder_no >> 8);
1137 *(uchar_t *)dst = val;
1142 case PRI_DRV_SEL_PORT:
1143 case SEC_DRV_SEL_PORT: // hard disk drive and head register 0x1f6
1145 // b7 Extended data field for ECC
1146 // b6/b5: Used to be sector size. 00=256,01=512,10=1024,11=128
1147 // Since 512 was always used, bit 6 was taken to mean LBA mode:
1148 // b6 1=LBA mode, 0=CHS mode
1152 uchar_t val = ((1 << 7) |
1153 ((controller->lba_mode > 0) << 6) |
1154 (1 << 5) | // 01b = 512 sector size
1155 (channel->drive_select << 4) |
1156 (controller->head_no << 0));
1158 *(uchar_t *)dst = val;
1163 case PRI_ADDR_REG_PORT:
1164 case SEC_ADDR_REG_PORT: // Hard Disk Address Register 0x3f7
1166 // Obsolete and unsupported register. Not driven by hard
1167 // disk controller. Report all 1's. If floppy controller
1168 // is handling this address, it will call this function
1169 // set/clear D7 (the only bit it handles), then return
1170 // the combined value
1171 *(uchar_t *)dst = 0xff;
1176 PrintError("Invalid Port: %d\n", port);
1184 static int write_general_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
1185 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
1186 struct channel_t * channel = NULL;
1187 struct drive_t * drive = NULL;
1188 struct controller_t * controller = NULL;
1189 uchar_t value = *(uchar_t *)src;
1192 PrintError("Invalid Status port read length: %d (port=%d)\n", length, port);
1196 if (is_primary_port(ramdisk, port)) {
1197 channel = &(ramdisk->channels[0]);
1198 } else if (is_secondary_port(ramdisk, port)) {
1199 channel = &(ramdisk->channels[1]);
1201 PrintError("Invalid Port: %d\n", port);
1205 drive = get_selected_drive(channel);
1206 controller = &(drive->controller);
1209 PrintDebug("[write_general_handler] IO write to port %x (val=0x%02x), channel = %d\n",
1210 port, value, get_channel_no(ramdisk, channel));
1214 case PRI_FEATURES_PORT:
1215 case SEC_FEATURES_PORT: // hard disk write precompensation 0x1f1
1217 write_features(channel, value);
1220 case PRI_SECT_CNT_PORT:
1221 case SEC_SECT_CNT_PORT: // hard disk sector count 0x1f2
1223 write_sector_count(channel, value);
1226 case PRI_SECT_ADDR1_PORT:
1227 case SEC_SECT_ADDR1_PORT: // hard disk sector number 0x1f3
1229 write_sector_number(channel, value);
1232 case PRI_SECT_ADDR2_PORT:
1233 case SEC_SECT_ADDR2_PORT: // hard disk cylinder low 0x1f4
1235 write_cylinder_low(channel, value);
1238 case PRI_SECT_ADDR3_PORT:
1239 case SEC_SECT_ADDR3_PORT: // hard disk cylinder high 0x1f5
1241 write_cylinder_high(channel, value);
1244 case PRI_DRV_SEL_PORT:
1245 case SEC_DRV_SEL_PORT: // hard disk drive and head register 0x1f6
1247 // b7 Extended data field for ECC
1248 // b6/b5: Used to be sector size. 00=256,01=512,10=1024,11=128
1249 // Since 512 was always used, bit 6 was taken to mean LBA mode:
1250 // b6 1=LBA mode, 0=CHS mode
1257 PrintDebug("\tDrive Select value=%x\n", value);
1259 if ((value & 0xa0) != 0xa0) {
1260 PrintDebug("\t\tIO write 0x%x (%02x): not 1x1xxxxxb\n", port, (unsigned) value);
1263 write_head_no(channel, value & 0xf);
1264 if ((controller->lba_mode == 0) && (((value >> 6) & 1) == 1)) {
1265 PrintDebug("\t\tenabling LBA mode\n");
1268 write_lba_mode(channel, (value >> 6) & 1);
1272 if (drive->cdrom.cd) {
1273 PrintDebug("\t\tSetting LBA on CDROM: %d\n", (value >> 6) & 1);
1274 drive->cdrom.cd->set_LBA(drive->private_data, (value >> 6) & 1);
1278 channel->drive_select = (value >> 4) & 0x01;
1279 drive = get_selected_drive(channel);
1281 if (drive->device_type == IDE_NONE) {
1282 PrintDebug("\t\tError: device set to %d which does not exist! channel = 0x%x\n",
1283 channel->drive_select, get_channel_no(ramdisk, channel));
1285 controller->error_register = 0x04; // aborted
1286 controller->status.err = 1;
1292 PrintError("\t\thard drive: io write to unhandled port 0x%x (value = %c)\n", port, value);
1303 static void rd_raise_interrupt(struct vm_device * dev, struct channel_t * channel) {
1305 // struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
1306 struct drive_t * drive = get_selected_drive(channel);
1307 struct controller_t * controller = &(drive->controller);
1309 PrintDebug("[raise_interrupt] disable_irq = %02x\n", controller->control.disable_irq);
1311 if (!(controller->control.disable_irq)) {
1314 PrintDebug("\t\tRaising interrupt %d {%s}\n\n", irq, device_type_to_str(drive->device_type));
1316 dev->vm->vm_ops.raise_irq(dev->vm, irq);
1318 PrintDebug("\t\tirq is disabled\n");
1324 static void rd_lower_irq(struct vm_device *dev, Bit32u irq) // __attribute__(regparm(1))
1326 PrintDebug("[lower_irq] irq = %d\n", irq);
1327 dev->vm->vm_ops.lower_irq(dev->vm, irq);
1336 //////////////////////////////////////////////////////////////////////////
1344 int handle_atapi_packet_command(struct vm_device * dev, struct channel_t * channel, ushort_t value) {
1345 struct ramdisk_t * ramdisk = (struct ramdisk_t *)(dev->private_data);
1346 struct drive_t * drive = get_selected_drive(channel);
1347 struct controller_t * controller = &(drive->controller);
1349 if (controller->buffer_index >= PACKET_SIZE) {
1350 PrintError("ATAPI packet exceeded maximum length: buffer_index (%d) >= PACKET_SIZE\n",
1351 controller->buffer_index);
1355 controller->buffer[controller->buffer_index] = value;
1356 controller->buffer[controller->buffer_index + 1] = (value >> 8);
1357 controller->buffer_index += 2;
1360 /* if packet completely writtten */
1361 if (controller->buffer_index >= PACKET_SIZE) {
1362 // complete command received
1363 Bit8u atapi_command = controller->buffer[0];
1365 PrintDebug("\t\tcdrom: ATAPI command 0x%x started\n", atapi_command);
1367 switch (atapi_command) {
1368 case 0x00: // test unit ready
1370 if (drive->cdrom.ready) {
1371 rd_atapi_cmd_nop(dev, channel);
1373 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1376 rd_raise_interrupt(dev, channel);
1380 case 0x03: // request sense
1382 int alloc_length = controller->buffer[4];
1384 if (rd_init_send_atapi_command(dev, channel, atapi_command, 18, alloc_length, false) == -1) {
1389 controller->buffer[0] = 0x70 | (1 << 7);
1390 controller->buffer[1] = 0;
1391 controller->buffer[2] = drive->sense.sense_key;
1392 controller->buffer[3] = drive->sense.information.arr[0];
1393 controller->buffer[4] = drive->sense.information.arr[1];
1394 controller->buffer[5] = drive->sense.information.arr[2];
1395 controller->buffer[6] = drive->sense.information.arr[3];
1396 controller->buffer[7] = 17 - 7;
1397 controller->buffer[8] = drive->sense.specific_inf.arr[0];
1398 controller->buffer[9] = drive->sense.specific_inf.arr[1];
1399 controller->buffer[10] = drive->sense.specific_inf.arr[2];
1400 controller->buffer[11] = drive->sense.specific_inf.arr[3];
1401 controller->buffer[12] = drive->sense.asc;
1402 controller->buffer[13] = drive->sense.ascq;
1403 controller->buffer[14] = drive->sense.fruc;
1404 controller->buffer[15] = drive->sense.key_spec.arr[0];
1405 controller->buffer[16] = drive->sense.key_spec.arr[1];
1406 controller->buffer[17] = drive->sense.key_spec.arr[2];
1408 rd_ready_to_send_atapi(dev, channel);
1411 case 0x1b: // start stop unit
1413 //bx_bool Immed = (controller->buffer[1] >> 0) & 1;
1414 rd_bool LoEj = (controller->buffer[4] >> 1) & 1;
1415 rd_bool Start = (controller->buffer[4] >> 0) & 1;
1418 if ((!LoEj) && (!Start)) {
1419 PrintError("FIXME: Stop disc not implemented\n");
1421 rd_atapi_cmd_nop(dev, channel);
1422 rd_raise_interrupt(dev, channel);
1423 } else if (!LoEj && Start) { // start (spin up) the disc
1425 drive->cdrom.cd->start_cdrom(drive->private_data);
1427 PrintError("FIXME: ATAPI start disc not reading TOC\n");
1428 rd_atapi_cmd_nop(dev, channel);
1429 rd_raise_interrupt(dev, channel);
1430 } else if (LoEj && !Start) { // Eject the disc
1431 rd_atapi_cmd_nop(dev, channel);
1433 if (drive->cdrom.ready) {
1435 drive->cdrom.cd->eject_cdrom(drive->private_data);
1437 drive->cdrom.ready = 0;
1438 //bx_options.atadevice[channel][SLAVE_SELECTED(channel)].Ostatus->set(EJECTED);
1439 //bx_gui->update_drive_status_buttons();
1441 rd_raise_interrupt(dev, channel);
1442 } else { // Load the disc
1443 // My guess is that this command only closes the tray, that's a no-op for us
1444 rd_atapi_cmd_nop(dev, channel);
1445 rd_raise_interrupt(dev, channel);
1449 case 0xbd: // mechanism status
1451 uint16_t alloc_length = rd_read_16bit(controller->buffer + 8);
1453 if (alloc_length == 0) {
1454 PrintError("Zero allocation length to MECHANISM STATUS not impl.\n");
1458 if (rd_init_send_atapi_command(dev, channel, atapi_command, 8, alloc_length, false) == -1) {
1462 controller->buffer[0] = 0; // reserved for non changers
1463 controller->buffer[1] = 0; // reserved for non changers
1465 controller->buffer[2] = 0; // Current LBA (TODO!)
1466 controller->buffer[3] = 0; // Current LBA (TODO!)
1467 controller->buffer[4] = 0; // Current LBA (TODO!)
1469 controller->buffer[5] = 1; // one slot
1471 controller->buffer[6] = 0; // slot table length
1472 controller->buffer[7] = 0; // slot table length
1474 rd_ready_to_send_atapi(dev, channel);
1477 case 0x5a: // mode sense
1479 uint16_t alloc_length = rd_read_16bit(controller->buffer + 7);
1481 Bit8u PC = controller->buffer[2] >> 6;
1482 Bit8u PageCode = controller->buffer[2] & 0x3f;
1485 case 0x0: // current values
1488 case 0x01: // error recovery
1491 if (rd_init_send_atapi_command(dev, channel, atapi_command, sizeof(struct error_recovery_t) + 8, alloc_length, false) == -1) {
1495 rd_init_mode_sense_single(dev, channel, &(drive->cdrom.current.error_recovery),
1496 sizeof(struct error_recovery_t));
1497 rd_ready_to_send_atapi(dev, channel);
1500 case 0x2a: // CD-ROM capabilities & mech. status
1503 if (rd_init_send_atapi_command(dev, channel, atapi_command, 28, alloc_length, false) == -1) {
1507 rd_init_mode_sense_single(dev, channel, &(controller->buffer[8]), 28);
1509 controller->buffer[8] = 0x2a;
1510 controller->buffer[9] = 0x12;
1511 controller->buffer[10] = 0x00;
1512 controller->buffer[11] = 0x00;
1513 // Multisession, Mode 2 Form 2, Mode 2 Form 1
1514 controller->buffer[12] = 0x70;
1515 controller->buffer[13] = (3 << 5);
1516 controller->buffer[14] = (unsigned char) (1 |
1517 (drive->cdrom.locked ? (1 << 1) : 0) |
1520 controller->buffer[15] = 0x00;
1521 controller->buffer[16] = (706 >> 8) & 0xff;
1522 controller->buffer[17] = 706 & 0xff;
1523 controller->buffer[18] = 0;
1524 controller->buffer[19] = 2;
1525 controller->buffer[20] = (512 >> 8) & 0xff;
1526 controller->buffer[21] = 512 & 0xff;
1527 controller->buffer[22] = (706 >> 8) & 0xff;
1528 controller->buffer[23] = 706 & 0xff;
1529 controller->buffer[24] = 0;
1530 controller->buffer[25] = 0;
1531 controller->buffer[26] = 0;
1532 controller->buffer[27] = 0;
1533 rd_ready_to_send_atapi(dev, channel);
1536 case 0x0d: // CD-ROM
1537 case 0x0e: // CD-ROM audio control
1540 PrintError("Ramdisk: cdrom: MODE SENSE (curr), code=%x not implemented yet\n",
1542 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1543 ASC_INV_FIELD_IN_CMD_PACKET);
1544 rd_raise_interrupt(dev, channel);
1549 // not implemeted by this device
1550 PrintDebug("\t\tcdrom: MODE SENSE PC=%x, PageCode=%x, not implemented by device\n",
1552 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1553 ASC_INV_FIELD_IN_CMD_PACKET);
1554 rd_raise_interrupt(dev, channel);
1560 case 0x1: // changeable values
1563 case 0x01: // error recovery
1564 case 0x0d: // CD-ROM
1565 case 0x0e: // CD-ROM audio control
1566 case 0x2a: // CD-ROM capabilities & mech. status
1569 PrintError("cdrom: MODE SENSE (chg), code=%x not implemented yet\n",
1571 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1572 ASC_INV_FIELD_IN_CMD_PACKET);
1573 rd_raise_interrupt(dev, channel);
1578 // not implemeted by this device
1579 PrintDebug("\t\tcdrom: MODE SENSE PC=%x, PageCode=%x, not implemented by device\n",
1581 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1582 ASC_INV_FIELD_IN_CMD_PACKET);
1583 rd_raise_interrupt(dev, channel);
1589 case 0x2: // default values
1592 case 0x01: // error recovery
1593 case 0x0d: // CD-ROM
1594 case 0x0e: // CD-ROM audio control
1595 case 0x2a: // CD-ROM capabilities & mech. status
1597 PrintError("cdrom: MODE SENSE (dflt), code=%x\n",
1603 // not implemeted by this device
1604 PrintDebug("\t\tcdrom: MODE SENSE PC=%x, PageCode=%x, not implemented by device\n",
1606 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1607 ASC_INV_FIELD_IN_CMD_PACKET);
1608 rd_raise_interrupt(dev, channel);
1614 case 0x3: // saved values not implemented
1616 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
1617 rd_raise_interrupt(dev, channel);
1622 PrintError("Should not get here!\n");
1629 case 0x12: // inquiry
1631 uint8_t alloc_length = controller->buffer[4];
1633 if (rd_init_send_atapi_command(dev, channel, atapi_command, 36, alloc_length, false) == -1) {
1637 controller->buffer[0] = 0x05; // CD-ROM
1638 controller->buffer[1] = 0x80; // Removable
1639 controller->buffer[2] = 0x00; // ISO, ECMA, ANSI version
1640 controller->buffer[3] = 0x21; // ATAPI-2, as specified
1641 controller->buffer[4] = 31; // additional length (total 36)
1642 controller->buffer[5] = 0x00; // reserved
1643 controller->buffer[6] = 0x00; // reserved
1644 controller->buffer[7] = 0x00; // reserved
1647 const char* vendor_id = "VTAB ";
1649 for (i = 0; i < 8; i++) {
1650 controller->buffer[8+i] = vendor_id[i];
1654 const char* product_id = "Turbo CD-ROM ";
1655 for (i = 0; i < 16; i++) {
1656 controller->buffer[16+i] = product_id[i];
1659 // Product Revision level
1660 const char* rev_level = "1.0 ";
1661 for (i = 0; i < 4; i++) {
1662 controller->buffer[32 + i] = rev_level[i];
1665 rd_ready_to_send_atapi(dev, channel);
1668 case 0x25: // read cd-rom capacity
1670 // no allocation length???
1671 if (rd_init_send_atapi_command(dev, channel, atapi_command, 8, 8, false) == -1) {
1675 if (drive->cdrom.ready) {
1676 uint32_t capacity = drive->cdrom.capacity;
1678 PrintDebug("\t\tCapacity is %d sectors (%d bytes)\n", capacity, capacity * 2048);
1680 controller->buffer[0] = (capacity >> 24) & 0xff;
1681 controller->buffer[1] = (capacity >> 16) & 0xff;
1682 controller->buffer[2] = (capacity >> 8) & 0xff;
1683 controller->buffer[3] = (capacity >> 0) & 0xff;
1684 controller->buffer[4] = (2048 >> 24) & 0xff;
1685 controller->buffer[5] = (2048 >> 16) & 0xff;
1686 controller->buffer[6] = (2048 >> 8) & 0xff;
1687 controller->buffer[7] = (2048 >> 0) & 0xff;
1689 rd_ready_to_send_atapi(dev, channel);
1691 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1692 rd_raise_interrupt(dev, channel);
1698 case 0xbe: // read cd
1700 if (drive->cdrom.ready) {
1701 PrintError("Read CD with CD present not implemented\n");
1702 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
1703 rd_raise_interrupt(dev, channel);
1705 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1706 rd_raise_interrupt(dev, channel);
1710 case 0x43: // read toc
1712 if (drive->cdrom.ready) {
1714 bool msf = (controller->buffer[1] >> 1) & 1;
1715 uint8_t starting_track = controller->buffer[6];
1717 uint16_t alloc_length = rd_read_16bit(controller->buffer + 7);
1719 uint8_t format = (controller->buffer[9] >> 6);
1724 if (!(drive->cdrom.cd->read_toc(drive->private_data, controller->buffer,
1725 &toc_length, msf, starting_track))) {
1726 PrintDebug("CDROM: Reading Table of Contents Failed\n");
1727 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1728 ASC_INV_FIELD_IN_CMD_PACKET);
1729 rd_raise_interrupt(dev, channel);
1731 if (rd_init_send_atapi_command(dev, channel, atapi_command, toc_length, alloc_length, false) == -1) {
1734 rd_ready_to_send_atapi(dev, channel);
1739 // multi session stuff. we ignore this and emulate a single session only
1740 if (rd_init_send_atapi_command(dev, channel, atapi_command, 12, alloc_length, false) == -1) {
1744 controller->buffer[0] = 0;
1745 controller->buffer[1] = 0x0a;
1746 controller->buffer[2] = 1;
1747 controller->buffer[3] = 1;
1749 for (i = 0; i < 8; i++) {
1750 controller->buffer[4 + i] = 0;
1753 rd_ready_to_send_atapi(dev, channel);
1758 PrintError("(READ TOC) Format %d not supported\n", format);
1762 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1763 rd_raise_interrupt(dev, channel);
1767 case 0x28: // read (10)
1768 case 0xa8: // read (12)
1771 uint32_t transfer_length;
1772 if (atapi_command == 0x28) {
1773 transfer_length = rd_read_16bit(controller->buffer + 7);
1775 transfer_length = rd_read_32bit(controller->buffer + 6);
1778 uint32_t lba = rd_read_32bit(controller->buffer + 2);
1780 if (!(drive->cdrom.ready)) {
1781 PrintError("CDROM Error: Not Ready (ATA%d/%d)\n",
1782 get_channel_no(ramdisk, channel), get_drive_no(channel, drive));
1783 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1784 rd_raise_interrupt(dev, channel);
1788 if (transfer_length == 0) {
1789 rd_atapi_cmd_nop(dev, channel);
1790 rd_raise_interrupt(dev, channel);
1791 PrintError("READ(%d) with transfer length 0, ok\n",
1792 (atapi_command == 0x28) ? 10 : 12);
1796 if (lba + transfer_length > drive->cdrom.capacity) {
1797 PrintError("CDROM Error: Capacity exceeded [capacity=%d] (ATA%d/%d)\n",
1798 drive->cdrom.capacity,
1799 get_channel_no(ramdisk, channel), get_drive_no(channel, drive));
1800 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR);
1801 rd_raise_interrupt(dev, channel);
1805 PrintDebug("\t\tcdrom: READ (%d) LBA=%d LEN=%d\n",
1806 (atapi_command == 0x28) ? 10 : 12,
1807 lba, transfer_length);
1810 if (rd_init_send_atapi_command(dev, channel, atapi_command, transfer_length * 2048,
1811 transfer_length * 2048, true) == -1) {
1812 PrintError("CDROM Error: Atapi command send error\n");
1816 drive->cdrom.remaining_blocks = transfer_length;
1817 drive->cdrom.next_lba = lba;
1818 rd_ready_to_send_atapi(dev, channel);
1823 uint32_t lba = rd_read_32bit(controller->buffer + 2);
1825 if (!(drive->cdrom.ready)) {
1826 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1827 rd_raise_interrupt(dev, channel);
1831 if (lba > drive->cdrom.capacity) {
1832 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR);
1833 rd_raise_interrupt(dev, channel);
1837 PrintDebug("\t\tcdrom: SEEK (ignored)\n");
1839 rd_atapi_cmd_nop(dev, channel);
1840 rd_raise_interrupt(dev, channel);
1844 case 0x1e: // prevent/allow medium removal
1847 if (drive->cdrom.ready) {
1848 drive->cdrom.locked = controller->buffer[4] & 1;
1849 rd_atapi_cmd_nop(dev, channel);
1851 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1854 rd_raise_interrupt(dev, channel);
1858 case 0x42: // read sub-channel
1860 //bool msf = get_packet_field(channel,1, 1, 1);
1861 bool sub_q = get_packet_field(channel,2, 6, 1);
1862 //uint8_t data_format = get_packet_byte(channel,3);
1863 //uint8_t track_number = get_packet_byte(channel,6);
1864 uint16_t alloc_length = get_packet_word(channel,7);
1869 UNUSED(data_format);
1870 UNUSED(track_number);
1872 if (!(drive->cdrom.ready)) {
1873 rd_atapi_cmd_error(dev, channel, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
1874 rd_raise_interrupt(dev, channel);
1876 controller->buffer[0] = 0;
1877 controller->buffer[1] = 0; // audio not supported
1878 controller->buffer[2] = 0;
1879 controller->buffer[3] = 0;
1881 int ret_len = 4; // header size
1883 if (sub_q) { // !sub_q == header only
1884 PrintError("Read sub-channel with SubQ not implemented\n");
1885 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST,
1886 ASC_INV_FIELD_IN_CMD_PACKET);
1887 rd_raise_interrupt(dev, channel);
1890 if (rd_init_send_atapi_command(dev, channel, atapi_command, ret_len, alloc_length, false) == -1) {
1893 rd_ready_to_send_atapi(dev, channel);
1897 case 0x51: // read disc info
1899 // no-op to keep the Linux CD-ROM driver happy
1900 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
1901 rd_raise_interrupt(dev, channel);
1904 case 0x55: // mode select
1905 case 0xa6: // load/unload cd
1906 case 0x4b: // pause/resume
1907 case 0x45: // play audio
1908 case 0x47: // play audio msf
1909 case 0xbc: // play cd
1910 case 0xb9: // read cd msf
1911 case 0x44: // read header
1913 case 0xbb: // set cd speed
1914 case 0x4e: // stop play/scan
1917 PrintError("ATAPI command 0x%x not implemented yet\n",
1919 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
1920 rd_raise_interrupt(dev, channel);
1923 PrintError("Unknown ATAPI command 0x%x (%d)\n",
1924 atapi_command, atapi_command);
1925 // We'd better signal the error if the user chose to continue
1926 rd_atapi_cmd_error(dev, channel, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
1927 rd_raise_interrupt(dev, channel);
1937 int rd_init_send_atapi_command(struct vm_device * dev, struct channel_t * channel, Bit8u command, int req_length, int alloc_length, bool lazy)
1939 struct drive_t * drive = &(channel->drives[channel->drive_select]);
1940 struct controller_t * controller = &(drive->controller);
1942 // controller->byte_count is a union of controller->cylinder_no;
1943 // lazy is used to force a data read in the buffer at the next read.
1945 PrintDebug("[rd_init_send_atapi_cmd]\n");
1947 if (controller->byte_count == 0xffff) {
1948 controller->byte_count = 0xfffe;
1951 if ((controller->byte_count & 1) &&
1952 !(alloc_length <= controller->byte_count)) {
1954 PrintDebug("\t\tOdd byte count (0x%04x) to ATAPI command 0x%02x, using 0x%x\n",
1955 controller->byte_count,
1957 controller->byte_count - 1);
1959 controller->byte_count -= 1;
1962 if (controller->byte_count == 0) {
1963 PrintError("\t\tATAPI command with zero byte count\n");
1967 if (alloc_length < 0) {
1968 PrintError("\t\tAllocation length < 0\n");
1972 if (alloc_length == 0) {
1973 alloc_length = controller->byte_count;
1976 controller->interrupt_reason.i_o = 1;
1977 controller->interrupt_reason.c_d = 0;
1978 controller->status.busy = 0;
1979 controller->status.drq = 1;
1980 controller->status.err = 0;
1982 // no bytes transfered yet
1984 controller->buffer_index = 2048;
1986 controller->buffer_index = 0;
1989 controller->drq_index = 0;
1991 if (controller->byte_count > req_length) {
1992 controller->byte_count = req_length;
1995 if (controller->byte_count > alloc_length) {
1996 controller->byte_count = alloc_length;
1999 drive->atapi.command = command;
2000 drive->atapi.drq_bytes = controller->byte_count;
2001 drive->atapi.total_bytes_remaining = (req_length < alloc_length) ? req_length : alloc_length;
2004 // // bias drq_bytes and total_bytes_remaining
2005 // SELECTED_DRIVE(channel).atapi.drq_bytes += 2048;
2006 // SELECTED_DRIVE(channel).atapi.total_bytes_remaining += 2048;
2014 void rd_ready_to_send_atapi(struct vm_device * dev, struct channel_t * channel) {
2015 PrintDebug("[rd_ready_to_send_atapi]\n");
2017 rd_raise_interrupt(dev, channel);
2024 void rd_atapi_cmd_error(struct vm_device * dev, struct channel_t * channel, sense_t sense_key, asc_t asc)
2026 struct drive_t * drive = &(channel->drives[channel->drive_select]);
2027 struct controller_t * controller = &(drive->controller);
2029 #ifdef DEBUG_RAMDISK
2031 struct ramdisk_t *ramdisk = (struct ramdisk_t *)(dev->private_data);
2032 PrintDebug("[rd_atapi_cmd_error]\n");
2033 PrintDebug("Error: atapi_cmd_error channel=%02x key=%02x asc=%02x\n",
2034 get_channel_no(ramdisk, channel), sense_key, asc);
2038 controller->error_register = sense_key << 4;
2039 controller->interrupt_reason.i_o = 1;
2040 controller->interrupt_reason.c_d = 1;
2041 controller->interrupt_reason.rel = 0;
2042 controller->status.busy = 0;
2043 controller->status.drive_ready = 1;
2044 controller->status.write_fault = 0;
2045 controller->status.drq = 0;
2046 controller->status.err = 1;
2048 drive->sense.sense_key = sense_key;
2049 drive->sense.asc = asc;
2050 drive->sense.ascq = 0;
2055 void rd_atapi_cmd_nop(struct vm_device * dev, struct channel_t * channel)
2057 struct drive_t * drive = &(channel->drives[channel->drive_select]);
2058 struct controller_t * controller = &(drive->controller);
2060 PrintDebug("[rd_atapi_cmd_nop]\n");
2061 controller->interrupt_reason.i_o = 1;
2062 controller->interrupt_reason.c_d = 1;
2063 controller->interrupt_reason.rel = 0;
2064 controller->status.busy = 0;
2065 controller->status.drive_ready = 1;
2066 controller->status.drq = 0;
2067 controller->status.err = 0;
2073 void rd_identify_ATAPI_drive(struct vm_device * dev, struct channel_t * channel)
2075 struct drive_t * drive = &(channel->drives[channel->drive_select]);
2076 struct controller_t * controller = &(drive->controller);
2080 const char* serial_number = " VT00001\0\0\0\0\0\0\0\0\0\0\0\0";
2081 const char* firmware = "ALPHA1 ";
2083 drive->id_drive[0] = (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0); // Removable CDROM, 50us response, 12 byte packets
2085 for (i = 1; i <= 9; i++) {
2086 drive->id_drive[i] = 0;
2089 for (i = 0; i < 10; i++) {
2090 drive->id_drive[10 + i] = ((serial_number[i * 2] << 8) |
2091 (serial_number[(i * 2) + 1]));
2094 for (i = 20; i <= 22; i++) {
2095 drive->id_drive[i] = 0;
2098 for (i = 0; i < strlen(firmware)/2; i++) {
2099 drive->id_drive[23 + i] = ((firmware[i * 2] << 8) |
2100 (firmware[(i * 2) + 1]));
2102 V3_ASSERT((23 + i) == 27);
2104 for (i = 0; i < strlen((char *)(drive->model_no)) / 2; i++) {
2105 drive->id_drive[27 + i] = ((drive->model_no[i * 2] << 8) |
2106 (drive->model_no[(i * 2) + 1]));
2108 V3_ASSERT((27 + i) == 47);
2110 drive->id_drive[47] = 0;
2111 drive->id_drive[48] = 1; // 32 bits access
2113 drive->id_drive[49] = (1 << 9); // LBA supported
2115 drive->id_drive[50] = 0;
2116 drive->id_drive[51] = 0;
2117 drive->id_drive[52] = 0;
2119 drive->id_drive[53] = 3; // words 64-70, 54-58 valid
2121 for (i = 54; i <= 62; i++) {
2122 drive->id_drive[i] = 0;
2125 // copied from CFA540A
2126 drive->id_drive[63] = 0x0103; // variable (DMA stuff)
2127 drive->id_drive[64] = 0x0001; // PIO
2128 drive->id_drive[65] = 0x00b4;
2129 drive->id_drive[66] = 0x00b4;
2130 drive->id_drive[67] = 0x012c;
2131 drive->id_drive[68] = 0x00b4;
2133 drive->id_drive[69] = 0;
2134 drive->id_drive[70] = 0;
2135 drive->id_drive[71] = 30; // faked
2136 drive->id_drive[72] = 30; // faked
2137 drive->id_drive[73] = 0;
2138 drive->id_drive[74] = 0;
2140 drive->id_drive[75] = 0;
2142 for (i = 76; i <= 79; i++) {
2143 drive->id_drive[i] = 0;
2146 drive->id_drive[80] = 0x1e; // supports up to ATA/ATAPI-4
2147 drive->id_drive[81] = 0;
2148 drive->id_drive[82] = 0;
2149 drive->id_drive[83] = 0;
2150 drive->id_drive[84] = 0;
2151 drive->id_drive[85] = 0;
2152 drive->id_drive[86] = 0;
2153 drive->id_drive[87] = 0;
2154 drive->id_drive[88] = 0;
2156 for (i = 89; i <= 126; i++) {
2157 drive->id_drive[i] = 0;
2160 drive->id_drive[127] = 0;
2161 drive->id_drive[128] = 0;
2163 for (i = 129; i <= 159; i++) {
2164 drive->id_drive[i] = 0;
2167 for (i = 160; i <= 255; i++) {
2168 drive->id_drive[i] = 0;
2171 // now convert the id_drive array (native 256 word format) to
2172 // the controller buffer (512 bytes)
2174 for (i = 0; i <= 255; i++) {
2175 temp16 = drive->id_drive[i];
2176 controller->buffer[i * 2] = temp16 & 0x00ff;
2177 controller->buffer[i * 2 + 1] = temp16 >> 8;
2190 void rd_init_mode_sense_single(struct vm_device * dev,
2191 struct channel_t * channel, const void* src, int size)
2193 struct drive_t * drive = &(channel->drives[channel->drive_select]);
2194 struct controller_t * controller = &(drive->controller);
2196 PrintDebug("[rd_init_mode_sense_single]\n");
2199 controller->buffer[0] = (size + 6) >> 8;
2200 controller->buffer[1] = (size + 6) & 0xff;
2201 controller->buffer[2] = 0x70; // no media present
2202 controller->buffer[3] = 0; // reserved
2203 controller->buffer[4] = 0; // reserved
2204 controller->buffer[5] = 0; // reserved
2205 controller->buffer[6] = 0; // reserved
2206 controller->buffer[7] = 0; // reserved
2209 memcpy(controller->buffer + 8, src, size);
2214 static void rd_command_aborted(struct vm_device * dev,
2215 struct channel_t * channel, unsigned value) {
2216 struct drive_t * drive = &(channel->drives[channel->drive_select]);
2217 struct controller_t * controller = &(drive->controller);
2219 PrintDebug("[rd_command_aborted]\n");
2220 PrintDebug("\t\taborting on command 0x%02x {%s}\n", value, device_type_to_str(drive->device_type));
2222 controller->current_command = 0;
2223 controller->status.busy = 0;
2224 controller->status.drive_ready = 1;
2225 controller->status.err = 1;
2226 controller->error_register = 0x04; // command ABORTED
2227 controller->status.drq = 0;
2228 controller->status.seek_complete = 0;
2229 controller->status.corrected_data = 0;
2230 controller->buffer_index = 0;
2232 rd_raise_interrupt(dev, channel);
2236 static int ramdisk_init_device(struct vm_device *dev) {
2237 struct ramdisk_t *ramdisk= (struct ramdisk_t *)dev->private_data;
2239 PrintDebug("Initializing Ramdisk\n");
2242 rd_init_hardware(ramdisk);
2245 dev_hook_io(dev, PRI_CTRL_PORT,
2246 &read_status_port, &write_ctrl_port);
2248 dev_hook_io(dev, PRI_DATA_PORT,
2249 &read_data_port, &write_data_port);
2250 dev_hook_io(dev, PRI_FEATURES_PORT,
2251 &read_general_port, &write_general_port);
2252 dev_hook_io(dev, PRI_SECT_CNT_PORT,
2253 &read_general_port, &write_general_port);
2254 dev_hook_io(dev, PRI_SECT_ADDR1_PORT,
2255 &read_general_port, &write_general_port);
2256 dev_hook_io(dev, PRI_SECT_ADDR2_PORT,
2257 &read_general_port, &write_general_port);
2258 dev_hook_io(dev, PRI_SECT_ADDR3_PORT,
2259 &read_general_port, &write_general_port);
2260 dev_hook_io(dev, PRI_DRV_SEL_PORT,
2261 &read_general_port, &write_general_port);
2262 dev_hook_io(dev, PRI_CMD_PORT,
2263 &read_status_port, &write_cmd_port);
2266 dev_hook_io(dev, SEC_CTRL_PORT,
2267 &read_status_port, &write_ctrl_port);
2269 dev_hook_io(dev, SEC_DATA_PORT,
2270 &read_data_port, &write_data_port);
2271 dev_hook_io(dev, SEC_FEATURES_PORT,
2272 &read_general_port, &write_general_port);
2273 dev_hook_io(dev, SEC_SECT_CNT_PORT,
2274 &read_general_port, &write_general_port);
2275 dev_hook_io(dev, SEC_SECT_ADDR1_PORT,
2276 &read_general_port, &write_general_port);
2277 dev_hook_io(dev, SEC_SECT_ADDR2_PORT,
2278 &read_general_port, &write_general_port);
2279 dev_hook_io(dev, SEC_SECT_ADDR3_PORT,
2280 &read_general_port, &write_general_port);
2281 dev_hook_io(dev, SEC_DRV_SEL_PORT,
2282 &read_general_port, &write_general_port);
2283 dev_hook_io(dev, SEC_CMD_PORT,
2284 &read_status_port, &write_cmd_port);
2288 dev_hook_io(dev, SEC_ADDR_REG_PORT,
2289 &read_general_port, &write_general_port);
2291 dev_hook_io(dev, PRI_ADDR_REG_PORT,
2292 &read_general_port, &write_general_port);
2301 static int ramdisk_deinit_device(struct vm_device *dev) {
2302 struct ramdisk_t *ramdisk = (struct ramdisk_t *)(dev->private_data);
2303 rd_close_harddrive(ramdisk);
2307 static struct vm_device_ops dev_ops = {
2308 .init = ramdisk_init_device,
2309 .deinit = ramdisk_deinit_device,
2318 struct vm_device *create_ramdisk()
2321 struct ramdisk_t *ramdisk;
2322 ramdisk = (struct ramdisk_t *)V3_Malloc(sizeof(struct ramdisk_t));
2323 V3_ASSERT(ramdisk != NULL);
2325 PrintDebug("[create_ramdisk]\n");
2327 struct vm_device *device = create_device("RAMDISK", &dev_ops, ramdisk);
2335 #ifdef DEBUG_RAMDISK
2337 static void rd_print_state(struct ramdisk_t * ramdisk) {
2340 struct channel_t * channels = (struct channel_t *)(&(ramdisk->channels));
2343 for (channel = 0; channel < MAX_ATA_CHANNEL; channel++) {
2344 memset((char *)(channels + channel), 0, sizeof(struct channel_t));
2347 PrintDebug("sizeof(*channels) = %d\n", sizeof(*channels));
2348 PrintDebug("sizeof(channles->drives[0].controller) = %d\n", sizeof((channels->drives[0].controller)));
2349 PrintDebug("sizeof(channles->drives[0].cdrom) = %d\n", sizeof((channels->drives[0].cdrom)));
2350 PrintDebug("sizeof(channles->drives[0].sense) = %d\n", sizeof((channels->drives[0].sense)));
2351 PrintDebug("sizeof(channles->drives[0].atapi) = %d\n", sizeof((channels->drives[0].atapi)));
2354 PrintDebug("sizeof(channles->drives[0].controller.status) = %d\n",
2355 sizeof((channels->drives[0].controller.status)));
2356 PrintDebug("sizeof(channles->drives[0].controller.sector_count) = %d\n",
2357 sizeof((channels->drives[0].controller.sector_count)));
2358 PrintDebug("sizeof(channles->drives[0].controller.interrupt_reason) = %d\n",
2359 sizeof((channels->drives[0].controller.interrupt_reason)));
2361 PrintDebug("sizeof(channles->drives[0].controller.cylinder_no) = %d\n",
2362 sizeof((channels->drives[0].controller.cylinder_no)));
2363 PrintDebug("sizeof(channles->drives[0].controller.byte_count) = %d\n",
2364 sizeof((channels->drives[0].controller.byte_count)));
2367 PrintDebug("sizeof(channles->drives[0].controller.control) = %d\n",
2368 sizeof((channels->drives[0].controller.control)));
2371 for (channel = 0; channel < MAX_ATA_CHANNEL; channel++){
2373 for (device = 0; device < 2; device++){
2375 // Initialize controller state, even if device is not present
2376 PrintDebug("channels[%d].drives[%d].controller.status.busy = %d\n",
2378 channels[channel].drives[device].controller.status.busy);
2379 PrintDebug("channels[%d].drives[%d].controller.status.drive_ready = %d\n",
2381 channels[channel].drives[device].controller.status.drive_ready);
2382 PrintDebug("channels[%d].drives[%d].controller.status.write_fault = %d\n",
2384 channels[channel].drives[device].controller.status.write_fault);
2385 PrintDebug("channels[%d].drives[%d].controller.status.seek_complete = %d\n",
2387 channels[channel].drives[device].controller.status.seek_complete);
2388 PrintDebug("channels[%d].drives[%d].controller.status.drq = %d\n",
2390 channels[channel].drives[device].controller.status.drq);
2391 PrintDebug("channels[%d].drives[%d].controller.status.corrected_data = %d\n",
2393 channels[channel].drives[device].controller.status.corrected_data);
2394 PrintDebug("channels[%d].drives[%d].controller.status.index_pulse = %d\n",
2396 channels[channel].drives[device].controller.status.index_pulse);
2397 PrintDebug("channels[%d].drives[%d].controller.status.index_pulse_count = %d\n",
2399 channels[channel].drives[device].controller.status.index_pulse_count);
2400 PrintDebug("channels[%d].drives[%d].controller.status.err = %d\n",
2402 channels[channel].drives[device].controller.status.err);
2405 PrintDebug("channels[%d].drives[%d].controller.error_register = %d\n",
2407 channels[channel].drives[device].controller.error_register);
2408 PrintDebug("channels[%d].drives[%d].controller.head_no = %d\n",
2410 channels[channel].drives[device].controller.head_no);
2411 PrintDebug("channels[%d].drives[%d].controller.sector_count = %d\n",
2413 channels[channel].drives[device].controller.sector_count);
2414 PrintDebug("channels[%d].drives[%d].controller.sector_no = %d\n",
2416 channels[channel].drives[device].controller.sector_no);
2417 PrintDebug("channels[%d].drives[%d].controller.cylinder_no = %d\n",
2419 channels[channel].drives[device].controller.cylinder_no);
2420 PrintDebug("channels[%d].drives[%d].controller.current_command = %02x\n",
2422 channels[channel].drives[device].controller.current_command);
2423 PrintDebug("channels[%d].drives[%d].controller.buffer_index = %d\n",
2425 channels[channel].drives[device].controller.buffer_index);
2428 PrintDebug("channels[%d].drives[%d].controller.control.reset = %d\n",
2430 channels[channel].drives[device].controller.control.reset);
2431 PrintDebug("channels[%d].drives[%d].controller.control.disable_irq = %d\n",
2433 channels[channel].drives[device].controller.control.disable_irq);
2436 PrintDebug("channels[%d].drives[%d].controller.reset_in_progress = %d\n",
2438 channels[channel].drives[device].controller.reset_in_progress);
2439 PrintDebug("channels[%d].drives[%d].controller.sectors_per_block = %02x\n",
2441 channels[channel].drives[device].controller.sectors_per_block);
2442 PrintDebug("channels[%d].drives[%d].controller.lba_mode = %d\n",
2444 channels[channel].drives[device].controller.lba_mode);
2445 PrintDebug("channels[%d].drives[%d].controller.features = %d\n",
2447 channels[channel].drives[device].controller.features);
2450 PrintDebug("channels[%d].drives[%d].model_no = %s\n",
2452 channels[channel].drives[device].model_no);
2453 PrintDebug("channels[%d].drives[%d].device_type = %d\n",
2455 channels[channel].drives[device].device_type);
2456 PrintDebug("channels[%d].drives[%d].cdrom.locked = %d\n",
2458 channels[channel].drives[device].cdrom.locked);
2459 PrintDebug("channels[%d].drives[%d].sense.sense_key = %d\n",
2461 channels[channel].drives[device].sense.sense_key);
2462 PrintDebug("channels[%d].drives[%d].sense.asc = %d\n",
2464 channels[channel].drives[device].sense.asc);
2465 PrintDebug("channels[%d].drives[%d].sense.ascq = %d\n",
2467 channels[channel].drives[device].sense.ascq);
2471 PrintDebug("channels[%d].drives[%d].controller.interrupt_reason.c_d = %02x\n",
2473 channels[channel].drives[device].controller.interrupt_reason.c_d);
2475 PrintDebug("channels[%d].drives[%d].controller.interrupt_reason.i_o = %02x\n",
2477 channels[channel].drives[device].controller.interrupt_reason.i_o);
2479 PrintDebug("channels[%d].drives[%d].controller.interrupt_reason.rel = %02x\n",
2481 channels[channel].drives[device].controller.interrupt_reason.rel);
2483 PrintDebug("channels[%d].drives[%d].controller.interrupt_reason.tag = %02x\n",
2485 channels[channel].drives[device].controller.interrupt_reason.tag);
2487 PrintDebug("channels[%d].drives[%d].cdrom.ready = %d\n",
2489 channels[channel].drives[device].cdrom.ready);
2498 static void trace_info(ushort_t port, void *src, uint_t length) {
2503 if (length == 1 && *((uchar_t*) src) == ATA_DETECT)
2504 PrintDebug("ata_detect()\n");
2508 if (length == 1 && *((uchar_t*) src) == ATA_RESET)
2509 PrintDebug("ata_reset()\n");
2513 if (length == 1 && *((uchar_t*) src) == ATA_CMD_DATA_IN)
2514 PrintDebug("ata_cmd_data_in()\n");
2518 if (length == 1 && *((uchar_t*) src) == ATA_CMD_DATA_OUT)
2519 PrintDebug("ata_cmd_data_out()\n");
2523 if (length == 1 && *((uchar_t*) src) == ATA_CMD_PACKET)
2524 PrintDebug("ata_cmd_packet()\n");
2528 if (length == 1 && *((uchar_t*) src) == ATAPI_GET_SENSE)
2529 PrintDebug("atapi_get_sense()\n");
2533 if (length == 1 && *((uchar_t*) src) == ATAPI_IS_READY)
2534 PrintDebug("atapi_is_ready()\n");
2538 if (length == 1 && *((uchar_t*) src) == ATAPI_IS_CDROM)
2539 PrintDebug("atapi_is_cdrom()\n");
2544 if (length == 1 && *((uchar_t*) src) == CDEMU_INIT)
2545 PrintDebug("cdemu_init()\n");
2549 if (length == 1 && *((uchar_t*) src) == CDEMU_ISACTIVE)
2550 PrintDebug("cdemu_isactive()\n");
2554 if (length == 1 && *((uchar_t*) src) == CDEMU_EMULATED_DRIVE)
2555 PrintDebug("cdemu_emulated_drive()\n");
2559 if (length == 1 && *((uchar_t*) src) == CDROM_BOOT)
2560 PrintDebug("cdrom_boot()\n");
2564 if (length == 1 && *((uchar_t*) src) == HARD_DRIVE_POST)
2565 PrintDebug("ata_hard_drive_post()\n");
2570 PrintDebug("ata_device_no(%d)\n", *((uchar_t*) src));
2575 PrintDebug("ata_device_type(%d)\n", *((uchar_t*) src));
2579 if (length == 1 && *((uchar_t*) src) == INT13_HARDDISK)
2580 PrintDebug("int13_harddrive()\n");
2584 if (length == 1 && *((uchar_t*) src) == INT13_CDROM)
2585 PrintDebug("int13_cdrom()\n");
2589 if (length == 1 && *((uchar_t*) src) == INT13_CDEMU)
2590 PrintDebug("int13_cdemu()\n");
2594 if (length == 1 && *((uchar_t*) src) == INT13_ELTORITO)
2595 PrintDebug("int13_eltorito()\n");
2599 if (length == 1 && *((uchar_t*) src) == INT13_DISKETTE_FUNCTION)
2600 PrintDebug("int13_diskette_function()\n");
2611 static int check_bit_fields(struct controller_t * controller) {
2613 controller->sector_count = 0;
2614 controller->interrupt_reason.c_d = 1;
2615 if (controller->sector_count != 0x01) {
2616 return INTR_REASON_BIT_ERR;
2619 controller->sector_count = 0;
2620 controller->interrupt_reason.i_o = 1;
2621 if (controller->sector_count != 0x02) {
2622 return INTR_REASON_BIT_ERR;
2625 controller->sector_count = 0;
2626 controller->interrupt_reason.rel = 1;
2627 if (controller->sector_count != 0x04) {
2628 return INTR_REASON_BIT_ERR;
2631 controller->sector_count = 0;
2632 controller->interrupt_reason.tag = 3;
2633 if (controller->sector_count != 0x18) {
2634 return INTR_REASON_BIT_ERR;