#include "atapi-types.h"
+
+/* ATAPI sucks...
+ * The OS will write to the cylinder register the number of bytes it wants to read
+ * however the device can change that value
+ *
+ */
+static int atapi_update_req_len(struct vm_device * dev, struct ide_channel * channel, uint_t xfer_len) {
+ struct ide_drive * drive = get_selected_drive(channel);
+
+ // PrintDebug("Updating request length (pre=%d)\n", drive->req_len);
+
+ if (drive->req_len == 0) {
+ PrintError("ATAPI Error: request of length 0\n");
+ return -1;
+ }
+
+
+ channel->status.busy = 0;
+ channel->status.data_req = 1;
+ channel->status.error = 0;
+
+ drive->irq_flags.io_dir = 1;
+ drive->irq_flags.c_d = 0;
+
+ // make count even
+ if (drive->req_len % 2) {
+ drive->req_len -= 1;
+ }
+
+ // if the device can't return as much as the OS requested
+ if (drive->req_len > xfer_len) {
+ drive->req_len = xfer_len;
+ }
+
+ // PrintDebug("Updating request length (post=%d)\n", drive->req_len);
+
+ return 0;
+}
+
+
+
+// This is for simple commands that don't need to sanity check the req_len
+static void atapi_setup_cmd_resp(struct vm_device * dev, struct ide_channel * channel, uint_t xfer_len) {
+ struct ide_drive * drive = get_selected_drive(channel);
+
+ drive->transfer_length = xfer_len;
+ drive->transfer_index = 0;
+ drive->req_len = drive->transfer_length;
+
+ drive->irq_flags.io_dir = 1;
+ drive->irq_flags.c_d = 0;
+
+ channel->status.busy = 0;
+ channel->status.data_req = 1;
+ channel->status.error = 0;
+
+ ide_raise_irq(dev, channel);
+}
+
static void atapi_cmd_error(struct vm_device * dev, struct ide_channel * channel,
atapi_sense_key_t sense_key, atapi_add_sense_code_t asc) {
struct ide_drive * drive = get_selected_drive(channel);
drive->cd_state.sense.sense_key = sense_key;
drive->cd_state.sense.asc = asc;
+
+ drive->irq_flags.io_dir = 1;
+ drive->irq_flags.c_d = 1;
+ drive->irq_flags.rel = 0;
+
ide_raise_irq(dev, channel);
}
static void atapi_cmd_nop(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+
channel->status.busy = 0;
channel->status.ready = 1;
channel->status.data_req = 0;
channel->status.error = 0;
+ drive->irq_flags.io_dir = 1;
+ drive->irq_flags.c_d = 1;
+ drive->irq_flags.rel = 0;
+
ide_raise_irq(dev, channel);
}
static int atapi_read_chunk(struct vm_device * dev, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
- int ret = drive->cd_ops->read(drive->data_buf, drive->cd_state.current_lba, drive->private_data);
-
+ int ret = drive->ops->read(drive->data_buf, drive->current_lba * ATAPI_BLOCK_SIZE, ATAPI_BLOCK_SIZE,
+drive->private_data);
+
if (ret == -1) {
- PrintError("IDE: Error reading CD block (LBA=%x)\n", drive->cd_state.current_lba);
+ PrintError("IDE: Error reading CD block (LBA=%p)\n", (void *)(addr_t)(drive->current_lba));
return -1;
}
return 0;
}
+
+static int atapi_update_data_buf(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+
+ switch (drive->cd_state.atapi_cmd) {
+ case 0x28: // read(10)
+ case 0xa8: // read(12)
+
+ // Update lba address to point to next block
+ drive->current_lba++;
+
+ // read the next block
+ return atapi_read_chunk(dev, channel);
+
+ default:
+ PrintError("Unhandled ATAPI command in update buffer %x\n", drive->cd_state.atapi_cmd);
+ return -1;
+ }
+
+ return 0;
+}
+
static int atapi_read10(struct vm_device * dev, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
struct atapi_read10_cmd * cmd = (struct atapi_read10_cmd *)(drive->data_buf);
uint32_t lba = be_to_le_32(cmd->lba);
uint16_t xfer_len = be_to_le_16(cmd->xfer_len);
-
+
+ PrintDebug("READ10: XferLen=%d\n", xfer_len);
+
/* Check if cd is ready
* if not: atapi_cmd_error(... ATAPI_SEN_NOT_RDY, ASC_MEDIA_NOT_PRESENT)
*/
-
+
if (xfer_len == 0) {
atapi_cmd_nop(dev, channel);
return 0;
}
-
- if ((lba + xfer_len) > drive->cd_ops->get_capacity(drive->private_data)) {
+
+ if (lba + xfer_len > drive->ops->get_capacity(drive->private_data)) {
+ PrintError("IDE: xfer len exceeded capacity (lba=%d) (xfer_len=%d) (ReadEnd=%d) (capacity=%d)\n",
+ lba, xfer_len, lba + xfer_len,
+ (uint32_t)drive->ops->get_capacity(drive->private_data));
atapi_cmd_error(dev, channel, ATAPI_SEN_ILL_REQ, ASC_LOG_BLK_OOR);
+ ide_raise_irq(dev, channel);
+ return 0;
+ }
+
+ // PrintDebug("Reading %d blocks from LBA 0x%x\n", xfer_len, lba);
+
+ drive->current_lba = lba;
+
+ // Update the request length value in the cylinder registers
+ drive->transfer_length = xfer_len * ATAPI_BLOCK_SIZE;
+ drive->transfer_index = 0;
+
+ if (channel->features.dma) {
+
+ if (channel->dma_status.active == 1) {
+ if (dma_read(dev, channel) == -1) {
+ PrintError("Error in DMA read for CD Read10 command\n");
+ return -1;
+ }
+ }
+ return 0;
}
-
- drive->cd_state.current_lba = lba;
-
if (atapi_read_chunk(dev, channel) == -1) {
PrintError("IDE: Could not read initial chunk from CD\n");
return -1;
}
+
+ // Length of ATAPI buffer sits in cylinder registers
+ // This is weird... The host sets this value to say what it would like to transfer,
+ // if it is larger than the correct size, the device shrinks it to the correct size
+ if (atapi_update_req_len(dev, channel, ATAPI_BLOCK_SIZE) == -1) {
+ PrintError("Could not update initial request length\n");
+ return -1;
+ }
- drive->transfer_length = xfer_len;
- drive->transfer_index = 0;
-
- channel->status.busy = 0;
- channel->status.data_req = 1;
- channel->status.error = 0;
-
ide_raise_irq(dev, channel);
return 0;
static void atapi_req_sense(struct vm_device * dev, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
- drive->transfer_length = 18;
- drive->transfer_index = 0;
memcpy(drive->data_buf, drive->cd_state.sense.buf, sizeof(drive->cd_state.sense.buf));
+ atapi_setup_cmd_resp(dev, channel, 18);
+}
+
+
+
+static int atapi_get_capacity(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_rd_capacity_resp * resp = (struct atapi_rd_capacity_resp *)(drive->data_buf);
+ uint32_t capacity = drive->ops->get_capacity(drive->private_data);
+
+ resp->lba = le_to_be_32(capacity);
+ resp->block_len = le_to_be_32(ATAPI_BLOCK_SIZE);
+
+ atapi_setup_cmd_resp(dev, channel, sizeof(struct atapi_rd_capacity_resp));
+
+ return 0;
+}
+
+static int atapi_get_config(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_config_cmd * cmd = (struct atapi_config_cmd *)(drive->data_buf);
+ uint16_t alloc_len = be_to_le_16(cmd->alloc_len);
+ struct atapi_config_resp * resp = (struct atapi_config_resp *)(drive->data_buf);
+ int xfer_len = 8;
+
+ memset(resp, 0, sizeof(struct atapi_config_resp));
+
+ resp->data_len = le_to_be_32(xfer_len - 4);
+
+ if (alloc_len < xfer_len) {
+ xfer_len = alloc_len;
+ }
+
+ atapi_setup_cmd_resp(dev, channel, xfer_len);
+
+ return 0;
+}
+
+
+static int atapi_read_toc(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_rd_toc_cmd * cmd = (struct atapi_rd_toc_cmd *)(drive->data_buf);
+ uint16_t alloc_len = be_to_le_16(cmd->alloc_len);
+ struct atapi_rd_toc_resp * resp = (struct atapi_rd_toc_resp *)(drive->data_buf);
+
+ int xfer_len = 12;
+
+ memset(resp, 0, sizeof(struct atapi_rd_toc_resp));
+
+ resp->data_len = le_to_be_16(10);
+ resp->first_track_num = 1;
+ resp->last_track_num = 1;
+
+ // we don't handle multi session
+ // we'll just treat it the same as single session
+ if ((cmd->format == 0) || (cmd->format == 1)) {
+ memset(&(resp->track_descs[0]), 0, 8);
+
+ if (alloc_len < xfer_len) {
+ xfer_len = alloc_len;
+ }
+
+ atapi_setup_cmd_resp(dev, channel, xfer_len);
+ } else {
+ PrintError("Unhandled Format (%d)\n", cmd->format);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int atapi_mode_sense_cur_values(struct vm_device * dev, struct ide_channel * channel,
+ struct atapi_mode_sense_cmd * sense_cmd) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_mode_sense_hdr * hdr = (struct atapi_mode_sense_hdr *)(drive->data_buf);
+ uint_t resp_len = sizeof(struct atapi_mode_sense_hdr);
+ uint16_t alloc_len = be_to_le_16(sense_cmd->alloc_len);
+ PrintDebug("Page Code: %x\n", sense_cmd->page_code);
+ PrintDebug("Alloc len: %d\n", alloc_len);
+
+ switch (sense_cmd->page_code) {
+
+ case 0x01: { // error recovery
+ struct atapi_error_recovery * err = NULL;
+ err = (struct atapi_error_recovery *)(drive->data_buf +
+ sizeof(struct atapi_mode_sense_hdr));
+
+ memcpy(err, &(drive->cd_state.err_recovery), sizeof(struct atapi_error_recovery));
+
+ resp_len += sizeof(struct atapi_error_recovery);
+
+ hdr->mode_data_len = le_to_be_16(resp_len - 2);
+
+ break;
+ }
+ case 0x2a: { // CDROM caps and mech. status
+ struct atapi_cdrom_caps * caps = NULL;
+ caps = (struct atapi_cdrom_caps *)(drive->data_buf + sizeof(struct atapi_mode_sense_hdr));
+
+
+ memset(caps, 0, sizeof(struct atapi_cdrom_caps));
+
+ resp_len += sizeof(struct atapi_cdrom_caps);
+
+ hdr->mode_data_len = le_to_be_16(resp_len - 2);
+
+ caps->page_code = 0x2a;
+ caps->page_len = 0x12;
+ caps->mode2_form1 = 1;
+ caps->mode2_form2 = 1;
+ caps->multisession = 1;
+ caps->isrc = 1;
+ caps->upc = 1;
+
+ /* JRL TODO: These are dynamic caps */
+ caps->lock = 1;
+ caps->lock_state = 0;
+ caps->eject = 1;
+
+ caps->lmt = 1;
+ caps->obsolete1 = le_to_be_16(0x2c2);
+ caps->num_vols_supp = le_to_be_16(2);
+
+ caps->lun_buf_size = le_to_be_16(512);
+ caps->obsolete2 = le_to_be_16(0x2c2);
+
+ break;
+ }
+ case 0x0d:
+ case 0x0e:
+ case 0x3f:
+ default:
+ PrintError("ATAPI: Mode sense Page Code not supported (%x)\n", sense_cmd->page_code);
+ atapi_cmd_error(dev, channel, ATAPI_SEN_ILL_REQ, ASC_INV_CMD_FIELD);
+ ide_raise_irq(dev, channel);
+ return 0;
+ }
+
+
+ // We do this after error checking, because its only valid if everything worked
+ memset(hdr, 0, sizeof(struct atapi_mode_sense_hdr));
+ hdr->media_type_code = 0x70;
+
+ PrintDebug("resp_len=%d\n", resp_len);
+
+ drive->transfer_length = (resp_len > alloc_len) ? alloc_len : resp_len;
+ drive->transfer_index = 0;
+ atapi_update_req_len(dev, channel, drive->transfer_length);
+
ide_raise_irq(dev, channel);
+
+ return 0;
+}
+
+
+static int atapi_mode_sense(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_mode_sense_cmd * sense_cmd = (struct atapi_mode_sense_cmd *)(drive->data_buf);
+
+ switch (sense_cmd->page_ctrl) {
+ case 0x00: // Current values
+ return atapi_mode_sense_cur_values(dev, channel, sense_cmd);
+ case 0x01: // Changeable values
+ case 0x02: // default values
+ case 0x03: // saved values
+ default:
+ PrintError("ATAPI: Mode sense mode not supported (%x)\n", sense_cmd->page_ctrl);
+ return -1;
+ }
+ return 0;
+}
+
+
+static int atapi_inquiry(struct vm_device * dev, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ struct atapi_inquiry_cmd * inquiry_cmd = (struct atapi_inquiry_cmd *)(drive->data_buf);
+ uint16_t alloc_len = be_to_le_16(inquiry_cmd->alloc_len);
+ struct atapi_inquiry_resp * resp = (struct atapi_inquiry_resp *)(drive->data_buf);
+ int xfer_len = sizeof(struct atapi_inquiry_resp);
+ const char * vendor_id = "VTAB ";
+ const char * product_id = "Turbo CD-ROM ";
+ const char * product_rev = "1.0 ";
+
+ memset(resp, 0, sizeof(struct atapi_inquiry_resp));
+
+ resp->dev_type = DEV_TYPE_CDROM;
+ resp->removable_media = 1;
+ resp->resp_data_fmt = 0x1;
+ resp->atapi_trans_ver = 0x2;
+ resp->additional_len = 31;
+
+ memcpy(resp->t10_vendor_id, vendor_id, strlen(vendor_id));
+ memcpy(resp->product_id, product_id, strlen(product_id));
+ memcpy(resp->product_rev, product_rev, strlen(product_rev));
+
+ if (alloc_len < xfer_len) {
+ xfer_len = alloc_len;
+ }
+
+ atapi_setup_cmd_resp(dev, channel, xfer_len);
+
+ return 0;
}
+
+static int atapi_cmd_is_data_op(uint8_t cmd) {
+ switch (cmd) {
+ case 0x28: // read (10)
+ case 0xa8: // read (12)
+ case 0x2a: // write (10)
+ case 0xaa: // write (12)
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+
static int atapi_handle_packet(struct vm_device * dev, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
- uint8_t command = drive->data_buf[0];
+ uint8_t cmd = drive->data_buf[0];
+
+ PrintDebug("IDE: ATAPI Command %x\n", cmd);
- PrintDebug("IDE: ATAPI Command %x\n", command);
+ drive->cd_state.atapi_cmd = cmd;
- switch (command) {
+ switch (cmd) {
case 0x00: // test unit ready
atapi_cmd_nop(dev, channel);
atapi_req_sense(dev, channel);
break;
+ case 0x1e: // lock door
+ atapi_cmd_nop(dev, channel);
+ break;
+
case 0x28: // read(10)
if (atapi_read10(dev, channel) == -1) {
- PrintError("IDE: Error in ATAPI read (%x)\n", command);
+ PrintError("IDE: Error in ATAPI read (%x)\n", cmd);
return -1;
}
+ break;
+ case 0x5a: // mode sense
+ if (atapi_mode_sense(dev, channel) == -1) {
+ PrintError("IDE: Error in ATAPI mode sense (%x)\n", cmd);
+ return -1;
+ }
+ break;
+
+
+ case 0x25: // read cdrom capacity
+ if (atapi_get_capacity(dev, channel) == -1) {
+ PrintError("IDE: Error getting CDROM capacity (%x)\n", cmd);
+ return -1;
+ }
break;
+
+
+ case 0x43: // read TOC
+ if (atapi_read_toc(dev, channel) == -1) {
+ PrintError("IDE: Error getting CDROM TOC (%x)\n", cmd);
+ return -1;
+ }
+ break;
+
+ case 0x46: // get configuration
+ if (atapi_get_config(dev, channel) == -1) {
+ PrintError("IDE: Error getting CDROM Configuration (%x)\n", cmd);
+ return -1;
+ }
+ break;
+
+ case 0x51: // read disk info
+ // no-op to keep the Linux CD-ROM driver happy
+ PrintDebug("Error: Read disk info no-op to keep the Linux CD-ROM driver happy\n");
+ atapi_cmd_error(dev, channel, ATAPI_SEN_ILL_REQ, ASC_INV_CMD_FIELD);
+ ide_raise_irq(dev, channel);
+ break;
+
+ case 0x12: // inquiry
+ if (atapi_inquiry(dev, channel) == -1) {
+ PrintError("IDE: Error in ATAPI inquiry (%x)\n", cmd);
+ return -1;
+ }
+ break;
+
case 0xa8: // read(12)
case 0x1b: // start/stop drive
case 0xbd: // mechanism status
- case 0x5a: // mode sense
- case 0x12: // inquiry
- case 0x25: // read cdrom capacity
+
case 0xbe: // read cd
- case 0x43: // read TOC
+
case 0x2b: // seek
- case 0x1e: // lock door
+
case 0x42: // read sub-channel
- case 0x51: // read disk info
+
case 0x55: // mode select
case 0xba: // scan
case 0xbb: // set cd speed
case 0x4e: // stop play/scan
- case 0x46: // ???
+
case 0x4a: // ???
default:
- PrintError("Unhandled ATAPI command %x\n", command);
+ PrintError("Unhandled ATAPI command %x\n", cmd);
atapi_cmd_error(dev, channel, ATAPI_SEN_ILL_REQ, ASC_INV_CMD_FIELD);
ide_raise_irq(dev, channel);
return -1;
drive->transfer_length = 512;
drive->transfer_index = 0;
+
+
memset(drive_id->buf, 0, sizeof(drive_id->buf));
drive_id->fixed_drive = 1;
// 32 bits access
drive_id->dword_io = 1;
+ // enable DMA access
+ drive_id->dma_enable = 1;
+
// enable LBA access
drive_id->lba_enable = 1;
+ drive_id->rw_multiples = 0x80ff;
// words 64-70, 54-58 valid
- drive_id->buf[53] = 0x0003;
+ drive_id->field_valid = 0x0007; // DMA + pkg cmd valid
// copied from CFA540A
drive_id->buf[63] = 0x0103; // variable (DMA stuff)
- drive_id->buf[64] = 0x0001; // PIO
+ //drive_id->buf[63] = 0x0000; // variable (DMA stuff)
+
+ // drive_id->buf[64] = 0x0001; // PIO
drive_id->buf[65] = 0x00b4;
drive_id->buf[66] = 0x00b4;
drive_id->buf[67] = 0x012c;
drive_id->buf[71] = 30; // faked
drive_id->buf[72] = 30; // faked
- drive_id->buf[80] = 0x1e; // supports up to ATA/ATAPI-4
+ // drive_id->buf[80] = 0x1e; // supports up to ATA/ATAPI-4
+ drive_id->major_rev_num = 0x0040; // supports up to ATA/ATAPI-6
+
+ drive_id->dma_ultra = 0x2020; // Ultra_DMA_Mode_5_Selected | Ultra_DMA_Mode_5_Supported;
}
