#include "ide-types.h"
#include "atapi-types.h"
-#ifndef CONFIG_DEBUG_IDE
+#ifndef V3_CONFIG_DEBUG_IDE
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
};
struct ide_hd_state {
- int accessed;
+ uint32_t accessed;
/* this is the multiple sector transfer size as configured for read/write multiple sectors*/
- uint_t mult_sector_num;
+ uint32_t mult_sector_num;
/* This is the current op sector size:
* for multiple sector ops this equals mult_sector_num
* for standard ops this equals 1
*/
- uint_t cur_sector_num;
+ uint32_t cur_sector_num;
};
struct ide_drive {
char model[41];
// Where we are in the data transfer
- uint_t transfer_index;
+ uint32_t transfer_index;
// the length of a transfer
// calculated for easy access
- uint_t transfer_length;
+ uint32_t transfer_length;
uint64_t current_lba;
struct ide_dma_cmd_reg dma_cmd;
struct ide_dma_status_reg dma_status;
uint32_t dma_prd_addr;
- uint_t dma_tbl_index;
+ uint32_t dma_tbl_index;
};
#include "ata.h"
-#ifdef CONFIG_DEBUG_IDE
+#ifdef V3_CONFIG_DEBUG_IDE
static void print_prd_table(struct ide_internal * ide, struct ide_channel * channel) {
struct ide_dma_prd prd_entry;
int index = 0;
}
PrintDebug("\tPRD Addr: %x, PRD Len: %d, EOT: %d\n",
- prd_entry.base_addr, prd_entry.size, prd_entry.end_of_table);
+ prd_entry.base_addr,
+ (prd_entry.size == 0) ? 0x10000 : prd_entry.size,
+ prd_entry.end_of_table);
if (prd_entry.end_of_table) {
break;
// Read in the data buffer....
// Read a sector/block at a time until the prd entry is full.
-#ifdef CONFIG_DEBUG_IDE
+#ifdef V3_CONFIG_DEBUG_IDE
print_prd_table(ide, channel);
#endif
// loop through the PRD data....
- prd_bytes_left = prd_entry.size;
+ if (prd_entry.size == 0) {
+ // a size of 0 means 64k
+ prd_bytes_left = 0x10000;
+ } else {
+ prd_bytes_left = prd_entry.size;
+ }
while (prd_bytes_left > 0) {
return -1;
}
} else {
- PrintDebug("DMA of command packet\n");
- PrintError("How does this work???\n");
+ /*
+ PrintError("DMA of command packet\n");
+ PrintError("How does this work (ATAPI CMD=%x)???\n", drive->cd_state.atapi_cmd);
return -1;
+ */
+ int cmd_ret = 0;
+
bytes_to_write = (prd_bytes_left > bytes_left) ? bytes_left : prd_bytes_left;
prd_bytes_left = bytes_to_write;
+
+ cmd_ret = v3_write_gpa_memory(core, prd_entry.base_addr + prd_offset,
+ bytes_to_write, drive->data_buf);
+
+ // check cmd_ret
+
+
+ bytes_to_write = 0;
+ prd_bytes_left = 0;
+ drive->transfer_index += bytes_to_write;
+
+ channel->status.busy = 0;
+ channel->status.ready = 1;
+ channel->status.data_req = 0;
+ channel->status.error = 0;
+ channel->status.seek_complete = 1;
+
+ channel->dma_status.active = 0;
+ channel->dma_status.err = 0;
+
+ ide_raise_irq(ide, channel);
+
+ return 0;
}
}
break;
}
+
+ case 0x08: // Reset Device
+ drive_reset(drive);
+ channel->error_reg.val = 0x01;
+ channel->status.busy = 0;
+ channel->status.ready = 1;
+ channel->status.seek_complete = 1;
+ channel->status.write_fault = 0;
+ channel->status.error = 0;
+ break;
+
+ case 0xe5: // Check power mode
+ drive->sector_count = 0xff; /* 0x00=standby, 0x80=idle, 0xff=active or idle */
+ channel->status.busy = 0;
+ channel->status.ready = 1;
+ channel->status.write_fault = 0;
+ channel->status.data_req = 0;
+ channel->status.error = 0;
+ break;
+
case 0xc4: // read multiple sectors
drive->hd_state.cur_sector_num = drive->hd_state.mult_sector_num;
default:
static int read_cd_data(uint8_t * dst, uint_t length, struct ide_internal * ide, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
int data_offset = drive->transfer_index % ATAPI_BLOCK_SIZE;
- int req_offset = drive->transfer_index % drive->req_len;
+ // int req_offset = drive->transfer_index % drive->req_len;
if (drive->cd_state.atapi_cmd != 0x28) {
PrintDebug("IDE: Reading CD Data (len=%d) (req_len=%d)\n", length, drive->req_len);
+ PrintDebug("IDE: transfer len=%d, transfer idx=%d\n", drive->transfer_length, drive->transfer_index);
}
+
+
if (drive->transfer_index >= drive->transfer_length) {
PrintError("Buffer Overrun... (xfer_len=%d) (cur_idx=%d) (post_idx=%d)\n",
drive->transfer_length, drive->transfer_index,
// Should the req_offset be recalculated here?????
- if ((req_offset == 0) && (drive->transfer_index > 0)) {
+ if (/*(req_offset == 0) &&*/ (drive->transfer_index > 0)) {
if (drive->transfer_index < drive->transfer_length) {
// An increment is complete, but there is still more data to be transferred...
}
} else {
// This was the final read of the request
+
+ drive->req_len = 0;
channel->status.data_req = 0;
channel->status.ready = 1;
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
- PrintDebug("IDE: Reading Data Port %x (len=%d)\n", port, length);
+ // PrintDebug("IDE: Reading Data Port %x (len=%d)\n", port, length);
if ((channel->cmd_reg == 0xec) ||
(channel->cmd_reg == 0xa1)) {
if (drive->drive_type == BLOCK_CDROM) {
if (read_cd_data((uint8_t *)dst, length, ide, channel) == -1) {
- PrintError("IDE: Could not read CD Data\n");
+ PrintError("IDE: Could not read CD Data (atapi cmd=%x)\n", drive->cd_state.atapi_cmd);
return -1;
}
} else if (drive->drive_type == BLOCK_DISK) {
PrintDebug("Attempting to select a non-present drive\n");
channel->error_reg.abort = 1;
channel->status.error = 1;
+ } else {
+ channel->status.busy = 0;
+ channel->status.ready = 1;
+ channel->status.data_req = 0;
+ channel->status.error = 0;
+ channel->status.seek_complete = 1;
+
+ channel->dma_status.active = 0;
+ channel->dma_status.err = 0;
}
break;
-static int ide_free(struct vm_device * dev) {
- // unhook io ports....
-
+static int ide_free(struct ide_internal * ide) {
// deregister from PCI?
+ V3_Free(ide);
+
+ return 0;
+}
+
+#ifdef V3_CONFIG_CHECKPOINT
+
+#include <palacios/vmm_sprintf.h>
+static int ide_save(struct v3_chkpt_ctx * ctx, void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)private_data;
+ int ch_num = 0;
+ int drive_num = 0;
+ char buf[128];
+
+
+ for (ch_num = 0; ch_num < 2; ch_num++) {
+ struct v3_chkpt_ctx * ch_ctx = NULL;
+ struct ide_channel * ch = &(ide->channels[ch_num]);
+
+ snprintf(buf, 128, "channel-%d", ch_num);
+ ch_ctx = v3_chkpt_open_ctx(ctx->chkpt, ctx, buf);
+
+ v3_chkpt_save_8(ch_ctx, "ERROR", &(ch->error_reg.val));
+ v3_chkpt_save_8(ch_ctx, "FEATURES", &(ch->features.val));
+ v3_chkpt_save_8(ch_ctx, "DRIVE_HEAD", &(ch->drive_head.val));
+ v3_chkpt_save_8(ch_ctx, "STATUS", &(ch->status.val));
+ v3_chkpt_save_8(ch_ctx, "CMD_REG", &(ch->cmd_reg));
+ v3_chkpt_save_8(ch_ctx, "CTRL_REG", &(ch->ctrl_reg.val));
+ v3_chkpt_save_8(ch_ctx, "DMA_CMD", &(ch->dma_cmd.val));
+ v3_chkpt_save_8(ch_ctx, "DMA_STATUS", &(ch->dma_status.val));
+ v3_chkpt_save_32(ch_ctx, "PRD_ADDR", &(ch->dma_prd_addr));
+ v3_chkpt_save_32(ch_ctx, "DMA_TBL_IDX", &(ch->dma_tbl_index));
+
+ for (drive_num = 0; drive_num < 2; drive_num++) {
+ struct v3_chkpt_ctx * drive_ctx = NULL;
+ struct ide_drive * drive = &(ch->drives[drive_num]);
+
+ snprintf(buf, 128, "drive-%d-%d", ch_num, drive_num);
+ drive_ctx = v3_chkpt_open_ctx(ctx->chkpt, ch_ctx, buf);
+
+ v3_chkpt_save_8(drive_ctx, "DRIVE_TYPE", &(drive->drive_type));
+ v3_chkpt_save_8(drive_ctx, "SECTOR_COUNT", &(drive->sector_count));
+ v3_chkpt_save_8(drive_ctx, "SECTOR_NUM", &(drive->sector_num));
+ v3_chkpt_save_16(drive_ctx, "CYLINDER", &(drive->cylinder));
+
+ v3_chkpt_save_64(drive_ctx, "CURRENT_LBA", &(drive->current_lba));
+ v3_chkpt_save_32(drive_ctx, "TRANSFER_LENGTH", &(drive->transfer_length));
+ v3_chkpt_save_32(drive_ctx, "TRANSFER_INDEX", &(drive->transfer_index));
+
+ v3_chkpt_save(drive_ctx, "DATA_BUF", DATA_BUFFER_SIZE, drive->data_buf);
+
+
+ /* For now we'll just pack the type specific data at the end... */
+ /* We should probably add a new context here in the future... */
+ if (drive->drive_type == BLOCK_CDROM) {
+ v3_chkpt_save(drive_ctx, "ATAPI_SENSE_DATA", 18, drive->cd_state.sense.buf);
+ v3_chkpt_save_8(drive_ctx, "ATAPI_CMD", &(drive->cd_state.atapi_cmd));
+ v3_chkpt_save(drive_ctx, "ATAPI_ERR_RECOVERY", 12, drive->cd_state.err_recovery.buf);
+ } else if (drive->drive_type == BLOCK_DISK) {
+ v3_chkpt_save_32(drive_ctx, "ACCESSED", &(drive->hd_state.accessed));
+ v3_chkpt_save_32(drive_ctx, "MULT_SECT_NUM", &(drive->hd_state.mult_sector_num));
+ v3_chkpt_save_32(drive_ctx, "CUR_SECT_NUM", &(drive->hd_state.cur_sector_num));
+ }
+ }
+ }
return 0;
}
+
+static int ide_load(struct v3_chkpt_ctx * ctx, void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)private_data;
+ int ch_num = 0;
+ int drive_num = 0;
+ char buf[128];
+
+
+ for (ch_num = 0; ch_num < 2; ch_num++) {
+ struct v3_chkpt_ctx * ch_ctx = NULL;
+ struct ide_channel * ch = &(ide->channels[ch_num]);
+
+ snprintf(buf, 128, "channel-%d", ch_num);
+ ch_ctx = v3_chkpt_open_ctx(ctx->chkpt, ctx, buf);
+
+ v3_chkpt_load_8(ch_ctx, "ERROR", &(ch->error_reg.val));
+ v3_chkpt_load_8(ch_ctx, "FEATURES", &(ch->features.val));
+ v3_chkpt_load_8(ch_ctx, "DRIVE_HEAD", &(ch->drive_head.val));
+ v3_chkpt_load_8(ch_ctx, "STATUS", &(ch->status.val));
+ v3_chkpt_load_8(ch_ctx, "CMD_REG", &(ch->cmd_reg));
+ v3_chkpt_load_8(ch_ctx, "CTRL_REG", &(ch->ctrl_reg.val));
+ v3_chkpt_load_8(ch_ctx, "DMA_CMD", &(ch->dma_cmd.val));
+ v3_chkpt_load_8(ch_ctx, "DMA_STATUS", &(ch->dma_status.val));
+ v3_chkpt_load_32(ch_ctx, "PRD_ADDR", &(ch->dma_prd_addr));
+ v3_chkpt_load_32(ch_ctx, "DMA_TBL_IDX", &(ch->dma_tbl_index));
+
+
+ for (drive_num = 0; drive_num < 2; drive_num++) {
+ struct v3_chkpt_ctx * drive_ctx = NULL;
+ struct ide_drive * drive = &(ch->drives[drive_num]);
+
+ snprintf(buf, 128, "drive-%d-%d", ch_num, drive_num);
+ drive_ctx = v3_chkpt_open_ctx(ctx->chkpt, ch_ctx, buf);
+
+ v3_chkpt_load_8(drive_ctx, "DRIVE_TYPE", &(drive->drive_type));
+ v3_chkpt_load_8(drive_ctx, "SECTOR_COUNT", &(drive->sector_count));
+ v3_chkpt_load_8(drive_ctx, "SECTOR_NUM", &(drive->sector_num));
+ v3_chkpt_load_16(drive_ctx, "CYLINDER", &(drive->cylinder));
+
+ v3_chkpt_load_64(drive_ctx, "CURRENT_LBA", &(drive->current_lba));
+ v3_chkpt_load_32(drive_ctx, "TRANSFER_LENGTH", &(drive->transfer_length));
+ v3_chkpt_load_32(drive_ctx, "TRANSFER_INDEX", &(drive->transfer_index));
+
+ v3_chkpt_load(drive_ctx, "DATA_BUF", DATA_BUFFER_SIZE, drive->data_buf);
+
+
+ /* For now we'll just pack the type specific data at the end... */
+ /* We should probably add a new context here in the future... */
+ if (drive->drive_type == BLOCK_CDROM) {
+ v3_chkpt_load(drive_ctx, "ATAPI_SENSE_DATA", 18, drive->cd_state.sense.buf);
+ v3_chkpt_load_8(drive_ctx, "ATAPI_CMD", &(drive->cd_state.atapi_cmd));
+ v3_chkpt_load(drive_ctx, "ATAPI_ERR_RECOVERY", 12, drive->cd_state.err_recovery.buf);
+ } else if (drive->drive_type == BLOCK_DISK) {
+ v3_chkpt_load_32(drive_ctx, "ACCESSED", &(drive->hd_state.accessed));
+ v3_chkpt_load_32(drive_ctx, "MULT_SECT_NUM", &(drive->hd_state.mult_sector_num));
+ v3_chkpt_load_32(drive_ctx, "CUR_SECT_NUM", &(drive->hd_state.cur_sector_num));
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+
+#endif
+
+
static struct v3_device_ops dev_ops = {
- .free = ide_free,
+ .free = (int (*)(void *))ide_free,
+#ifdef V3_CONFIG_CHECKPOINT
+ .save = ide_save,
+ .load = ide_load
+#endif
};
return -1;
}
- strncpy(drive->model, model_str, sizeof(drive->model) - 1);
-
+ if (model_str != NULL) {
+ strncpy(drive->model, model_str, sizeof(drive->model) - 1);
+ }
+
if (strcasecmp(type_str, "cdrom") == 0) {
drive->drive_type = BLOCK_CDROM;
