*/
#include <palacios/vmm.h>
+#include <palacios/vmm_dev_mgr.h>
#include <palacios/vm_guest_mem.h>
#include <devices/ide.h>
#include <devices/pci.h>
+#include <devices/southbridge.h>
#include "ide-types.h"
#include "atapi-types.h"
+#ifndef V3_CONFIG_DEBUG_IDE
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
+#endif
+
#define PRI_DEFAULT_IRQ 14
#define SEC_DEFAULT_IRQ 15
#define DATA_BUFFER_SIZE 2048
+#define ATAPI_BLOCK_SIZE 2048
+#define HD_SECTOR_SIZE 512
+
+
static const char * ide_pri_port_strs[] = {"PRI_DATA", "PRI_FEATURES", "PRI_SECT_CNT", "PRI_SECT_NUM",
"PRI_CYL_LOW", "PRI_CYL_HIGH", "PRI_DRV_SEL", "PRI_CMD",
"PRI_CTRL", "PRI_ADDR_REG"};
"DMA_PRD0", "DMA_PRD1", "DMA_PRD2", "DMA_PRD3"};
+typedef enum {BLOCK_NONE, BLOCK_DISK, BLOCK_CDROM} v3_block_type_t;
static inline const char * io_port_to_str(uint16_t port) {
if ((port >= PRI_DATA_PORT) && (port <= PRI_CMD_PORT)) {
}
-static const char * ide_dev_type_strs[] = {"NONE", "HARDDISK", "CDROM" };
-
-
-static inline const char * device_type_to_str(v3_ide_dev_type_t type) {
- if (type > 2) {
- return NULL;
- }
-
- return ide_dev_type_strs[type];
-}
-
-
struct ide_cd_state {
struct atapi_sense_data sense;
};
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 {
// Command Registers
- v3_ide_dev_type_t drive_type;
-
- union {
- struct v3_ide_cd_ops * cd_ops;
- struct v3_ide_hd_ops * hd_ops;
- };
+ v3_block_type_t drive_type;
+ struct v3_dev_blk_ops * ops;
union {
struct ide_cd_state cd_state;
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;
uint8_t data_buf[DATA_BUFFER_SIZE];
+ uint32_t num_cylinders;
+ uint32_t num_heads;
+ uint32_t num_sectors;
+
void * private_data;
union {
int irq; // this is temporary until we add PCI support
- struct pci_device * pci_dev;
-
// Control Registers
struct ide_ctrl_reg ctrl_reg; // [write] 0x3f6,0x376
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;
};
struct ide_internal {
struct ide_channel channels[2];
- struct vm_device * pci;
- struct pci_device * busmaster_pci;
+
+ struct v3_southbridge * southbridge;
+ struct vm_device * pci_bus;
+
+ struct pci_device * ide_pci;
+
+ struct v3_vm_info * vm;
};
/* Drive Commands */
-static void ide_raise_irq(struct vm_device * dev, struct ide_channel * channel) {
+static void ide_raise_irq(struct ide_internal * ide, struct ide_channel * channel) {
if (channel->ctrl_reg.irq_disable == 0) {
- PrintDebug("Raising IDE Interrupt %d\n", channel->irq);
- channel->dma_status.int_gen = 1;
- v3_raise_irq(dev->vm, channel->irq);
+ // PrintError("Raising IDE Interrupt %d\n", channel->irq);
+ channel->dma_status.int_gen = 1;
+ v3_raise_irq(ide->vm, channel->irq);
}
}
PrintDebug("Resetting drive %s\n", drive->model);
- if (drive->drive_type == IDE_CDROM) {
+ if (drive->drive_type == BLOCK_CDROM) {
drive->cylinder = 0xeb14;
} else {
drive->cylinder = 0x0000;
}
-static void ide_abort_command(struct vm_device * dev, struct ide_channel * channel) {
+static void ide_abort_command(struct ide_internal * ide, struct ide_channel * channel) {
channel->status.val = 0x41; // Error + ready
channel->error_reg.val = 0x04; // No idea...
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
}
-
-
+static int dma_read(struct guest_info * core, struct ide_internal * ide, struct ide_channel * channel);
+static int dma_write(struct guest_info * core, struct ide_internal * ide, struct ide_channel * channel);
/* ATAPI functions */
#include "ata.h"
+#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("Dumping PRD table\n");
+
+ while (1) {
+ uint32_t prd_entry_addr = channel->dma_prd_addr + (sizeof(struct ide_dma_prd) * index);
+ int ret;
+
+ ret = v3_read_gpa_memory(&(ide->vm->cores[0]), prd_entry_addr, sizeof(struct ide_dma_prd), (void *)&prd_entry);
+
+ if (ret != sizeof(struct ide_dma_prd)) {
+ PrintError("Could not read PRD\n");
+ return;
+ }
+
+ PrintDebug("\tPRD Addr: %x, PRD Len: %d, EOT: %d\n",
+ prd_entry.base_addr,
+ (prd_entry.size == 0) ? 0x10000 : prd_entry.size,
+ prd_entry.end_of_table);
+
+ if (prd_entry.end_of_table) {
+ break;
+ }
+
+ index++;
+ }
+
+ return;
+}
+#endif
/* IO Operations */
-static int dma_read(struct vm_device * dev, struct ide_channel * channel) {
+static int dma_read(struct guest_info * core, struct ide_internal * ide, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
- struct ide_dma_prd prd_entry;
- uint32_t prd_entry_addr = channel->dma_prd_addr + (sizeof(struct ide_dma_prd) * channel->dma_tbl_index);
- int ret;
+ // This is at top level scope to do the EOT test at the end
+ struct ide_dma_prd prd_entry = {};
+ uint_t bytes_left = drive->transfer_length;
- PrintDebug("PRD table address = %x\n", channel->dma_prd_addr);
+ // Read in the data buffer....
+ // Read a sector/block at a time until the prd entry is full.
- ret = read_guest_pa_memory(dev->vm, prd_entry_addr, sizeof(struct ide_dma_prd), (void *)&prd_entry);
+#ifdef V3_CONFIG_DEBUG_IDE
+ print_prd_table(ide, channel);
+#endif
- if (ret != sizeof(struct ide_dma_prd)) {
- PrintError("Could not read PRD\n");
- return -1;
- }
+ PrintDebug("DMA read for %d bytes\n", bytes_left);
- PrintDebug("PRD Addr: %x, PDR Len: %d, EOT: %d\n", prd_entry.base_addr, prd_entry.size, prd_entry.end_of_table);
+ // Loop through the disk data
+ while (bytes_left > 0) {
+ uint32_t prd_entry_addr = channel->dma_prd_addr + (sizeof(struct ide_dma_prd) * channel->dma_tbl_index);
+ uint_t prd_bytes_left = 0;
+ uint_t prd_offset = 0;
+ int ret;
- ret = write_guest_pa_memory(dev->vm, prd_entry.base_addr, prd_entry.size, drive->data_buf);
+ PrintDebug("PRD table address = %x\n", channel->dma_prd_addr);
- if (ret != prd_entry.size) {
- PrintError("Failed to copy data into guest memory... (ret=%d)\n", ret);
- return -1;
- }
+ ret = v3_read_gpa_memory(core, prd_entry_addr, sizeof(struct ide_dma_prd), (void *)&prd_entry);
+
+ if (ret != sizeof(struct ide_dma_prd)) {
+ PrintError("Could not read PRD\n");
+ return -1;
+ }
+
+ PrintDebug("PRD Addr: %x, PRD Len: %d, EOT: %d\n",
+ prd_entry.base_addr, prd_entry.size, prd_entry.end_of_table);
+
+ // loop through the PRD data....
+
+ 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) {
+ uint_t bytes_to_write = 0;
+
+ if (drive->drive_type == BLOCK_DISK) {
+ bytes_to_write = (prd_bytes_left > HD_SECTOR_SIZE) ? HD_SECTOR_SIZE : prd_bytes_left;
+
+
+ if (ata_read(ide, channel, drive->data_buf, 1) == -1) {
+ PrintError("Failed to read next disk sector\n");
+ return -1;
+ }
+ } else if (drive->drive_type == BLOCK_CDROM) {
+ if (atapi_cmd_is_data_op(drive->cd_state.atapi_cmd)) {
+ bytes_to_write = (prd_bytes_left > ATAPI_BLOCK_SIZE) ? ATAPI_BLOCK_SIZE : prd_bytes_left;
+
+ if (atapi_read_chunk(ide, channel) == -1) {
+ PrintError("Failed to read next disk sector\n");
+ return -1;
+ }
+ } else {
+ /*
+ 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;
+ }
+ }
+
+ PrintDebug("Writing DMA data to guest Memory ptr=%p, len=%d\n",
+ (void *)(addr_t)(prd_entry.base_addr + prd_offset), bytes_to_write);
+
+ drive->current_lba++;
+
+ ret = v3_write_gpa_memory(core, prd_entry.base_addr + prd_offset, bytes_to_write, drive->data_buf);
+
+ if (ret != bytes_to_write) {
+ PrintError("Failed to copy data into guest memory... (ret=%d)\n", ret);
+ return -1;
+ }
+
+ PrintDebug("\t DMA ret=%d, (prd_bytes_left=%d) (bytes_left=%d)\n", ret, prd_bytes_left, bytes_left);
+
+ drive->transfer_index += ret;
+ prd_bytes_left -= ret;
+ prd_offset += ret;
+ bytes_left -= ret;
+ }
+
+ channel->dma_tbl_index++;
+
+ if (drive->drive_type == BLOCK_DISK) {
+ if (drive->transfer_index % HD_SECTOR_SIZE) {
+ PrintError("We currently don't handle sectors that span PRD descriptors\n");
+ return -1;
+ }
+ } else if (drive->drive_type == BLOCK_CDROM) {
+ if (atapi_cmd_is_data_op(drive->cd_state.atapi_cmd)) {
+ if (drive->transfer_index % ATAPI_BLOCK_SIZE) {
+ PrintError("We currently don't handle ATAPI BLOCKS that span PRD descriptors\n");
+ PrintError("transfer_index=%d, transfer_length=%d\n",
+ drive->transfer_index, drive->transfer_length);
+ return -1;
+ }
+ }
+ }
+ if ((prd_entry.end_of_table == 1) && (bytes_left > 0)) {
+ PrintError("DMA table not large enough for data transfer...\n");
+ return -1;
+ }
+ }
/*
drive->irq_flags.io_dir = 1;
*/
+ // Update to the next PRD entry
+
// set DMA status
if (prd_entry.end_of_table) {
- channel->dma_status.active = 0;
- channel->dma_status.err = 0;
- channel->dma_status.int_gen = 1;
-
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(dev, channel);
+ ide_raise_irq(ide, channel);
return 0;
}
-static int dma_write(struct vm_device * dev, struct ide_channel * channel) {
- // unsupported
- PrintError("DMA writes currently not supported\n");
- return -1;
-}
+static int dma_write(struct guest_info * core, struct ide_internal * ide, struct ide_channel * channel) {
+ struct ide_drive * drive = get_selected_drive(channel);
+ // This is at top level scope to do the EOT test at the end
+ struct ide_dma_prd prd_entry = {};
+ uint_t bytes_left = drive->transfer_length;
-/*
- * This is an ugly ugly ugly way to differentiate between the first and second DMA channels
- */
+ PrintDebug("DMA write from %d bytes\n", bytes_left);
-static int write_dma_port(ushort_t port_offset, void * src, uint_t length, struct vm_device * dev, struct ide_channel * channel);
-static int read_dma_port(ushort_t port_offset, void * dst, uint_t length, struct vm_device * dev, struct ide_channel * channel);
+ // Loop through disk data
+ while (bytes_left > 0) {
+ uint32_t prd_entry_addr = channel->dma_prd_addr + (sizeof(struct ide_dma_prd) * channel->dma_tbl_index);
+ uint_t prd_bytes_left = 0;
+ uint_t prd_offset = 0;
+ int ret;
+
+ PrintDebug("PRD Table address = %x\n", channel->dma_prd_addr);
+ ret = v3_read_gpa_memory(core, prd_entry_addr, sizeof(struct ide_dma_prd), (void *)&prd_entry);
-static int write_pri_dma_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
- PrintDebug("IDE: Writing PRI DMA Port %x (%s) (val=%x)\n", port, dma_port_to_str(port & 0x7), *(uint32_t *)src);
- return write_dma_port(port & 0x7, src, length, dev, &(ide->channels[0]));
-}
+ if (ret != sizeof(struct ide_dma_prd)) {
+ PrintError("Could not read PRD\n");
+ return -1;
+ }
-static int write_sec_dma_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
- PrintDebug("IDE: Writing SEC DMA Port %x (%s) (val=%x)\n", port, dma_port_to_str(port & 0x7), *(uint32_t *)src);
- return write_dma_port(port & 0x7, src, length, dev, &(ide->channels[1]));
-}
+ PrintDebug("PRD Addr: %x, PRD Len: %d, EOT: %d\n",
+ prd_entry.base_addr, prd_entry.size, prd_entry.end_of_table);
+ prd_bytes_left = prd_entry.size;
-static int read_pri_dma_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
- PrintDebug("IDE: Reading PRI DMA Port %x (%s)\n", port, dma_port_to_str(port & 0x7));
- return read_dma_port(port & 0x7, dst, length, dev, &(ide->channels[0]));
-}
+ while (prd_bytes_left > 0) {
+ uint_t bytes_to_write = 0;
+
+
+ bytes_to_write = (prd_bytes_left > HD_SECTOR_SIZE) ? HD_SECTOR_SIZE : prd_bytes_left;
+
+
+ ret = v3_read_gpa_memory(core, prd_entry.base_addr + prd_offset, bytes_to_write, drive->data_buf);
+
+ if (ret != bytes_to_write) {
+ PrintError("Faild to copy data from guest memory... (ret=%d)\n", ret);
+ return -1;
+ }
+
+ PrintDebug("\t DMA ret=%d (prd_bytes_left=%d) (bytes_left=%d)\n", ret, prd_bytes_left, bytes_left);
+
+
+ if (ata_write(ide, channel, drive->data_buf, 1) == -1) {
+ PrintError("Failed to write data to disk\n");
+ return -1;
+ }
+
+ drive->current_lba++;
+
+ drive->transfer_index += ret;
+ prd_bytes_left -= ret;
+ prd_offset += ret;
+ bytes_left -= ret;
+ }
+
+ channel->dma_tbl_index++;
-static int read_sec_dma_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
- PrintDebug("IDE: Reading SEC DMA Port %x (%s)\n", port, dma_port_to_str(port & 0x7));
- return read_dma_port(port & 0x7, dst, length, dev, &(ide->channels[1]));
+ if (drive->transfer_index % HD_SECTOR_SIZE) {
+ PrintError("We currently don't handle sectors that span PRD descriptors\n");
+ return -1;
+ }
+
+ if ((prd_entry.end_of_table == 1) && (bytes_left > 0)) {
+ PrintError("DMA table not large enough for data transfer...\n");
+ return -1;
+ }
+ }
+
+ if (prd_entry.end_of_table) {
+ 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;
}
+
#define DMA_CMD_PORT 0x00
#define DMA_STATUS_PORT 0x02
#define DMA_PRD_PORT0 0x04
#define DMA_PRD_PORT2 0x06
#define DMA_PRD_PORT3 0x07
+#define DMA_CHANNEL_FLAG 0x08
-static int write_dma_port(ushort_t port_offset, void * src, uint_t length,
- struct vm_device * dev, struct ide_channel * channel) {
+static int write_dma_port(struct guest_info * core, ushort_t port, void * src, uint_t length, void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)private_data;
+ uint16_t port_offset = port & (DMA_CHANNEL_FLAG - 1);
+ uint_t channel_flag = (port & DMA_CHANNEL_FLAG) >> 3;
+ struct ide_channel * channel = &(ide->channels[channel_flag]);
+
+ PrintDebug("IDE: Writing DMA Port %x (%s) (val=%x) (len=%d) (channel=%d)\n",
+ port, dma_port_to_str(port_offset), *(uint32_t *)src, length, channel_flag);
switch (port_offset) {
case DMA_CMD_PORT:
if (channel->dma_cmd.read == 1) {
// DMA Read
- if (dma_read(dev, channel) == -1) {
+ if (dma_read(core, ide, channel) == -1) {
PrintError("Failed DMA Read\n");
return -1;
}
} else {
// DMA write
- if (dma_write(dev, channel) == -1) {
+ if (dma_write(core, ide, channel) == -1) {
PrintError("Failed DMA Write\n");
return -1;
}
break;
- case DMA_STATUS_PORT:
+ case DMA_STATUS_PORT: {
+ uint8_t val = *(uint8_t *)src;
+
if (length != 1) {
PrintError("Invalid read length for DMA status port\n");
return -1;
}
- channel->dma_status.val = *(uint8_t *)src;
+ // weirdness
+ channel->dma_status.val = ((val & 0x60) |
+ (channel->dma_status.val & 0x01) |
+ (channel->dma_status.val & ~val & 0x06));
+
break;
-
+ }
case DMA_PRD_PORT0:
case DMA_PRD_PORT1:
case DMA_PRD_PORT2:
}
-static int read_dma_port(ushort_t port_offset, void * dst, uint_t length,
- struct vm_device * dev, struct ide_channel * channel) {
+static int read_dma_port(struct guest_info * core, ushort_t port, void * dst, uint_t length, void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)private_data;
+ uint16_t port_offset = port & (DMA_CHANNEL_FLAG - 1);
+ uint_t channel_flag = (port & DMA_CHANNEL_FLAG) >> 3;
+ struct ide_channel * channel = &(ide->channels[channel_flag]);
+
+ PrintDebug("Reading DMA port %d (%x) (channel=%d)\n", port, port, channel_flag);
switch (port_offset) {
case DMA_CMD_PORT:
return -1;
}
- PrintDebug("\tval=%x\n", *(uint32_t *)dst);
+ PrintDebug("\tval=%x (len=%d)\n", *(uint32_t *)dst, length);
return length;
}
-static int write_cmd_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+static int write_cmd_port(struct guest_info * core, ushort_t port, void * src, uint_t length, void * priv_data) {
+ struct ide_internal * ide = priv_data;
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
switch (channel->cmd_reg) {
case 0xa1: // ATAPI Identify Device Packet
- if (drive->drive_type != IDE_CDROM) {
+ if (drive->drive_type != BLOCK_CDROM) {
drive_reset(drive);
// JRL: Should we abort here?
- ide_abort_command(dev, channel);
+ ide_abort_command(ide, channel);
} else {
atapi_identify_device(drive);
channel->error_reg.val = 0;
channel->status.val = 0x58; // ready, data_req, seek_complete
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
}
break;
case 0xec: // Identify Device
- if (drive->drive_type != IDE_DISK) {
+ if (drive->drive_type != BLOCK_DISK) {
drive_reset(drive);
// JRL: Should we abort here?
- ide_abort_command(dev, channel);
+ ide_abort_command(ide, channel);
} else {
ata_identify_device(drive);
channel->error_reg.val = 0;
channel->status.val = 0x58;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
}
break;
case 0xa0: // ATAPI Command Packet
- if (drive->drive_type != IDE_CDROM) {
- ide_abort_command(dev, channel);
+ if (drive->drive_type != BLOCK_CDROM) {
+ ide_abort_command(ide, channel);
}
drive->sector_count = 1;
case 0x21: // Read Sectors without Retry
drive->hd_state.cur_sector_num = 1;
- if (ata_read_sectors(dev, channel) == -1) {
+ if (ata_read_sectors(ide, channel) == -1) {
PrintError("Error reading sectors\n");
return -1;
}
case 0x24: // Read Sectors Extended
drive->hd_state.cur_sector_num = 1;
- if (ata_read_sectors_ext(dev, channel) == -1) {
+ if (ata_read_sectors_ext(ide, channel) == -1) {
PrintError("Error reading extended sectors\n");
return -1;
}
break;
case 0xc8: // Read DMA with retry
- case 0xc9: // Read DMA
+ case 0xc9: { // Read DMA
+ uint32_t sect_cnt = (drive->sector_count == 0) ? 256 : drive->sector_count;
+
+ if (ata_get_lba(ide, channel, &(drive->current_lba)) == -1) {
+ ide_abort_command(ide, channel);
+ return 0;
+ }
+
drive->hd_state.cur_sector_num = 1;
+
+ drive->transfer_length = sect_cnt * HD_SECTOR_SIZE;
+ drive->transfer_index = 0;
+ if (channel->dma_status.active == 1) {
+ // DMA Read
+ if (dma_read(core, ide, channel) == -1) {
+ PrintError("Failed DMA Read\n");
+ return -1;
+ }
+ }
break;
+ }
+
+ case 0xca: { // Write DMA
+ uint32_t sect_cnt = (drive->sector_count == 0) ? 256 : drive->sector_count;
+
+ if (ata_get_lba(ide, channel, &(drive->current_lba)) == -1) {
+ ide_abort_command(ide, channel);
+ return 0;
+ }
+
+ drive->hd_state.cur_sector_num = 1;
+
+ drive->transfer_length = sect_cnt * HD_SECTOR_SIZE;
+ drive->transfer_index = 0;
+
+ if (channel->dma_status.active == 1) {
+ // DMA Write
+ if (dma_write(core, ide, channel) == -1) {
+ PrintError("Failed DMA Write\n");
+ return -1;
+ }
+ }
+ break;
+ }
+ case 0xe0: // Standby Now 1
+ case 0xe1: // Set Idle Immediate
+ case 0xe2: // Standby
+ case 0xe3: // Set Idle 1
+ case 0xe6: // Sleep Now 1
+ case 0x94: // Standby Now 2
+ case 0x95: // Idle Immediate (CFA)
+ case 0x96: // Standby 2
+ case 0x97: // Set idle 2
+ case 0x99: // Sleep Now 2
+ channel->status.val = 0;
+ channel->status.ready = 1;
+ ide_raise_irq(ide, channel);
+ break;
+
case 0xef: // Set Features
// Prior to this the features register has been written to.
// This command tells the drive to check if the new value is supported (the value is drive specific)
channel->status.ready = 1;
channel->status.seek_complete = 1;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
break;
case 0x91: // Initialize Drive Parameters
channel->status.error = 0;
channel->status.ready = 1;
channel->status.seek_complete = 1;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
break;
case 0xc6: { // Set multiple mode (IDE Block mode)
// This makes the drive transfer multiple sectors before generating an interrupt
uint32_t tmp_sect_num = drive->sector_num; // GCC SUCKS
if (tmp_sect_num > MAX_MULT_SECTORS) {
- ide_abort_command(dev, channel);
+ ide_abort_command(ide, channel);
break;
}
channel->status.ready = 1;
channel->status.error = 0;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
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 write_data_port(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+static int write_data_port(struct guest_info * core, ushort_t port, void * src, uint_t length, void * priv_data) {
+ struct ide_internal * ide = priv_data;
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
return -1;
case 0xa0: // ATAPI packet command
- if (atapi_handle_packet(dev, channel) == -1) {
+ if (atapi_handle_packet(core, ide, channel) == -1) {
PrintError("Error handling ATAPI packet\n");
return -1;
}
}
-static int read_hd_data(uint8_t * dst, uint_t length, struct vm_device * dev, struct ide_channel * channel) {
+static int read_hd_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 % IDE_SECTOR_SIZE;
+ int data_offset = drive->transfer_index % HD_SECTOR_SIZE;
if ((data_offset == 0) && (drive->transfer_index > 0)) {
drive->current_lba++;
- if (ata_read(dev, channel, drive->data_buf, 1) == -1) {
+ if (ata_read(ide, channel, drive->data_buf, 1) == -1) {
PrintError("Could not read next disk sector\n");
return -1;
}
* cur_sector_num is configured depending on the operation we are currently running
* We also trigger an interrupt if this is the last byte to transfer, regardless of sector count
*/
- if (((drive->transfer_index % (IDE_SECTOR_SIZE * drive->hd_state.cur_sector_num)) == 0) ||
+ if (((drive->transfer_index % (HD_SECTOR_SIZE * drive->hd_state.cur_sector_num)) == 0) ||
(drive->transfer_index == drive->transfer_length)) {
if (drive->transfer_index < drive->transfer_length) {
// An increment is complete, but there is still more data to be transferred...
drive->irq_flags.io_dir = 1;
channel->status.busy = 0;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
}
-static int read_cd_data(uint8_t * dst, uint_t length, struct vm_device * dev, struct ide_channel * channel) {
+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,
return -1;
}
-
-
+
if ((data_offset == 0) && (drive->transfer_index > 0)) {
- if (atapi_update_data_buf(dev, channel) == -1) {
+ if (atapi_update_data_buf(ide, channel) == -1) {
PrintError("Could not update CDROM data buffer\n");
return -1;
}
// 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...
drive->irq_flags.c_d = 0;
// Update the request length in the cylinder regs
- if (atapi_update_req_len(dev, channel, drive->transfer_length - drive->transfer_index) == -1) {
+ if (atapi_update_req_len(ide, channel, drive->transfer_length - drive->transfer_index) == -1) {
PrintError("Could not update request length after completed increment\n");
return -1;
}
} else {
// This was the final read of the request
+
+ drive->req_len = 0;
channel->status.data_req = 0;
channel->status.ready = 1;
drive->irq_flags.io_dir = 1;
channel->status.busy = 0;
- ide_raise_irq(dev, channel);
+ ide_raise_irq(ide, channel);
}
return length;
}
-static int read_drive_id(uint8_t * dst, uint_t length, struct vm_device * dev, struct ide_channel * channel) {
+static int read_drive_id( uint8_t * dst, uint_t length, struct ide_internal * ide, struct ide_channel * channel) {
struct ide_drive * drive = get_selected_drive(channel);
channel->status.busy = 0;
}
-static int ide_read_data_port(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+static int ide_read_data_port(struct guest_info * core, ushort_t port, void * dst, uint_t length, void * priv_data) {
+ struct ide_internal * ide = priv_data;
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)) {
- return read_drive_id((uint8_t *)dst, length, dev, channel);
+ return read_drive_id((uint8_t *)dst, length, ide, channel);
}
- if (drive->drive_type == IDE_CDROM) {
- if (read_cd_data((uint8_t *)dst, length, dev, channel) == -1) {
- PrintError("IDE: Could not read CD Data\n");
+ if (drive->drive_type == BLOCK_CDROM) {
+ if (read_cd_data((uint8_t *)dst, length, ide, channel) == -1) {
+ PrintError("IDE: Could not read CD Data (atapi cmd=%x)\n", drive->cd_state.atapi_cmd);
return -1;
}
- } else if (drive->drive_type == IDE_DISK) {
- if (read_hd_data((uint8_t *)dst, length, dev, channel) == -1) {
+ } else if (drive->drive_type == BLOCK_DISK) {
+ if (read_hd_data((uint8_t *)dst, length, ide, channel) == -1) {
PrintError("IDE: Could not read HD Data\n");
return -1;
}
return length;
}
-static int write_port_std(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+static int write_port_std(struct guest_info * core, ushort_t port, void * src, uint_t length, void * priv_data) {
+ struct ide_internal * ide = priv_data;
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
drive = get_selected_drive(channel);
// Selecting a non-present device is a no-no
- if (drive->drive_type == IDE_NONE) {
+ if (drive->drive_type == BLOCK_NONE) {
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 read_port_std(ushort_t port, void * dst, uint_t length, struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+static int read_port_std(struct guest_info * core, ushort_t port, void * dst, uint_t length, void * priv_data) {
+ struct ide_internal * ide = priv_data;
struct ide_channel * channel = get_selected_channel(ide, port);
struct ide_drive * drive = get_selected_drive(channel);
// if no drive is present just return 0 + reserved bits
- if (drive->drive_type == IDE_NONE) {
+ if (drive->drive_type == BLOCK_NONE) {
if ((port == PRI_DRV_SEL_PORT) ||
(port == SEC_DRV_SEL_PORT)) {
*(uint8_t *)dst = 0xa0;
drive->sector_num = 0x01;
drive->cylinder = 0x0000;
- drive->drive_type = IDE_NONE;
+ drive->drive_type = BLOCK_NONE;
memset(drive->model, 0, sizeof(drive->model));
drive->transfer_length = 0;
memset(drive->data_buf, 0, sizeof(drive->data_buf));
+ drive->num_cylinders = 0;
+ drive->num_heads = 0;
+ drive->num_sectors = 0;
+
drive->private_data = NULL;
- drive->cd_ops = NULL;
+ drive->ops = NULL;
}
static void init_channel(struct ide_channel * channel) {
}
-static int pci_config_update(struct pci_device * pci_dev, uint_t reg_num, int length) {
+static int pci_config_update(uint_t reg_num, void * src, uint_t length, void * private_data) {
PrintDebug("PCI Config Update\n");
- PrintDebug("\t\tInterupt register (Dev=%s), irq=%d\n", pci_dev->name, pci_dev->config_header.intr_line);
+ /*
+ struct ide_internal * ide = (struct ide_internal *)(private_data);
+
+ PrintDebug("\t\tInterupt register (Dev=%s), irq=%d\n", ide->ide_pci->name, ide->ide_pci->config_header.intr_line);
+ */
return 0;
}
-static int init_ide_state(struct vm_device * dev) {
- struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
- struct v3_pci_bar bars[6];
- struct pci_device * pci_dev = NULL;
- int i, j;
+static int init_ide_state(struct ide_internal * ide) {
+ int i;
- for (i = 0; i < 2; i++) {
+ /*
+ * Check if the PIIX 3 actually represents both IDE channels in a single PCI entry
+ */
+
+ for (i = 0; i < 1; i++) {
init_channel(&(ide->channels[i]));
// JRL: this is a terrible hack...
ide->channels[i].irq = PRI_DEFAULT_IRQ + i;
+ }
- for (j = 0; j < 6; j++) {
- bars[j].type = PCI_BAR_NONE;
- }
+
+ return 0;
+}
- bars[4].type = PCI_BAR_IO;
- bars[4].default_base_port = PRI_DEFAULT_DMA_PORT + (i * 0x8);
- bars[4].num_ports = 8;
-
- if (i == 0) {
- bars[4].io_read = read_pri_dma_port;
- bars[4].io_write = write_pri_dma_port;
- } else {
- bars[4].io_read = read_sec_dma_port;
- bars[4].io_write = write_sec_dma_port;
- }
- pci_dev = v3_pci_register_device(ide->pci, PCI_STD_DEVICE, 0, "V3_IDE", -1, bars,
- pci_config_update, NULL, NULL, dev);
- if (pci_dev == NULL) {
- PrintError("Failed to register IDE BUS %d with PCI\n", i);
- return -1;
- }
+static int ide_free(struct ide_internal * ide) {
- ide->channels[i].pci_dev = pci_dev;
+ // deregister from PCI?
- pci_dev->config_header.vendor_id = 0x1095;
- pci_dev->config_header.device_id = 0x0646;
- pci_dev->config_header.revision = 0x8f07;
- pci_dev->config_header.subclass = 0x01;
- pci_dev->config_header.class = 0x01;
+ V3_Free(ide);
- pci_dev->config_header.intr_line = PRI_DEFAULT_IRQ + i;
- pci_dev->config_header.intr_pin = 1;
- }
+ 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]);
- /* Register PIIX3 Busmaster PCI device */
- for (j = 0; j < 6; j++) {
- bars[j].type = PCI_BAR_NONE;
+ 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));
+ }
+ }
}
- pci_dev = v3_pci_register_device(ide->pci, PCI_STD_DEVICE, 0, "PIIX3 IDE", -1, bars,
- NULL, NULL, NULL, dev);
-
+ 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];
- ide->busmaster_pci = pci_dev;
- pci_dev->config_header.vendor_id = 0x8086;
- pci_dev->config_header.device_id = 0x7010;
- pci_dev->config_header.revision = 0x80;
- pci_dev->config_header.subclass = 0x01;
- pci_dev->config_header.class = 0x01;
+ 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;
}
-static int init_ide(struct vm_device * dev) {
- //struct ide_internal * ide = (struct ide_internal *)(dev->private_data);
+#endif
- PrintDebug("IDE: Initializing IDE\n");
- if (init_ide_state(dev) == -1) {
- PrintError("Failed to initialize IDE state\n");
+static struct v3_device_ops dev_ops = {
+ .free = (int (*)(void *))ide_free,
+#ifdef V3_CONFIG_CHECKPOINT
+ .save = ide_save,
+ .load = ide_load
+#endif
+
+};
+
+
+
+
+static int connect_fn(struct v3_vm_info * vm,
+ void * frontend_data,
+ struct v3_dev_blk_ops * ops,
+ v3_cfg_tree_t * cfg,
+ void * private_data) {
+ struct ide_internal * ide = (struct ide_internal *)(frontend_data);
+ struct ide_channel * channel = NULL;
+ struct ide_drive * drive = NULL;
+
+ char * bus_str = v3_cfg_val(cfg, "bus_num");
+ char * drive_str = v3_cfg_val(cfg, "drive_num");
+ char * type_str = v3_cfg_val(cfg, "type");
+ char * model_str = v3_cfg_val(cfg, "model");
+ uint_t bus_num = 0;
+ uint_t drive_num = 0;
+
+
+ if ((!type_str) || (!drive_str) || (!bus_str)) {
+ PrintError("Incomplete IDE Configuration\n");
return -1;
}
+ bus_num = atoi(bus_str);
+ drive_num = atoi(drive_str);
- v3_dev_hook_io(dev, PRI_DATA_PORT,
- &ide_read_data_port, &write_data_port);
- v3_dev_hook_io(dev, PRI_FEATURES_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_SECT_CNT_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_SECT_NUM_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_CYL_LOW_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_CYL_HIGH_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_DRV_SEL_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, PRI_CMD_PORT,
- &read_port_std, &write_cmd_port);
-
- v3_dev_hook_io(dev, SEC_DATA_PORT,
- &ide_read_data_port, &write_data_port);
- v3_dev_hook_io(dev, SEC_FEATURES_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_SECT_CNT_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_SECT_NUM_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_CYL_LOW_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_CYL_HIGH_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_DRV_SEL_PORT,
- &read_port_std, &write_port_std);
- v3_dev_hook_io(dev, SEC_CMD_PORT,
- &read_port_std, &write_cmd_port);
-
+ channel = &(ide->channels[bus_num]);
+ drive = &(channel->drives[drive_num]);
- v3_dev_hook_io(dev, PRI_CTRL_PORT,
- &read_port_std, &write_port_std);
+ if (drive->drive_type != BLOCK_NONE) {
+ PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
+ return -1;
+ }
- v3_dev_hook_io(dev, SEC_CTRL_PORT,
- &read_port_std, &write_port_std);
-
+ if (model_str != NULL) {
+ strncpy(drive->model, model_str, sizeof(drive->model) - 1);
+ }
- v3_dev_hook_io(dev, SEC_ADDR_REG_PORT,
- &read_port_std, &write_port_std);
+ if (strcasecmp(type_str, "cdrom") == 0) {
+ drive->drive_type = BLOCK_CDROM;
- v3_dev_hook_io(dev, PRI_ADDR_REG_PORT,
- &read_port_std, &write_port_std);
+ while (strlen((char *)(drive->model)) < 40) {
+ strcat((char*)(drive->model), " ");
+ }
- return 0;
-}
+ } else if (strcasecmp(type_str, "hd") == 0) {
+ drive->drive_type = BLOCK_DISK;
+ drive->hd_state.accessed = 0;
+ drive->hd_state.mult_sector_num = 1;
+
+ drive->num_sectors = 63;
+ drive->num_heads = 16;
+ drive->num_cylinders = (ops->get_capacity(private_data) / HD_SECTOR_SIZE) / (drive->num_sectors * drive->num_heads);
+ } else {
+ PrintError("invalid IDE drive type\n");
+ return -1;
+ }
+
+ drive->ops = ops;
+
+ if (ide->ide_pci) {
+ // Hardcode this for now, but its not a good idea....
+ ide->ide_pci->config_space[0x41 + (bus_num * 2)] = 0x80;
+ }
+
+ drive->private_data = private_data;
-static int deinit_ide(struct vm_device * dev) {
- // unhook io ports....
- // deregister from PCI?
return 0;
}
-static struct vm_device_ops dev_ops = {
- .init = init_ide,
- .deinit = deinit_ide,
- .reset = NULL,
- .start = NULL,
- .stop = NULL,
-};
-struct vm_device * v3_create_ide(struct vm_device * pci) {
- struct ide_internal * ide = (struct ide_internal *)V3_Malloc(sizeof(struct ide_internal));
- struct vm_device * device = v3_create_device("IDE", &dev_ops, ide);
+static int ide_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
+ struct ide_internal * ide = NULL;
+ char * dev_id = v3_cfg_val(cfg, "ID");
+ int ret = 0;
- ide->pci = pci;
+ PrintDebug("IDE: Initializing IDE\n");
- PrintDebug("IDE: Creating IDE bus x 2\n");
+ ide = (struct ide_internal *)V3_Malloc(sizeof(struct ide_internal));
- return device;
-}
+ if (ide == NULL) {
+ PrintError("Error allocating IDE state\n");
+ return -1;
+ }
+ memset(ide, 0, sizeof(struct ide_internal));
+ ide->vm = vm;
+ ide->pci_bus = v3_find_dev(vm, v3_cfg_val(cfg, "bus"));
+ if (ide->pci_bus != NULL) {
+ struct vm_device * southbridge = v3_find_dev(vm, v3_cfg_val(cfg, "controller"));
+ if (!southbridge) {
+ PrintError("Could not find southbridge\n");
+ V3_Free(ide);
+ return -1;
+ }
-int v3_ide_register_cdrom(struct vm_device * ide_dev,
- uint_t bus_num,
- uint_t drive_num,
- char * dev_name,
- struct v3_ide_cd_ops * ops,
- void * private_data) {
+ ide->southbridge = (struct v3_southbridge *)(southbridge->private_data);
+ }
- struct ide_internal * ide = (struct ide_internal *)(ide_dev->private_data);
- struct ide_channel * channel = NULL;
- struct ide_drive * drive = NULL;
+ PrintDebug("IDE: Creating IDE bus x 2\n");
- V3_ASSERT((bus_num >= 0) && (bus_num < 2));
- V3_ASSERT((drive_num >= 0) && (drive_num < 2));
+ struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, ide);
- channel = &(ide->channels[bus_num]);
- drive = &(channel->drives[drive_num]);
-
- if (drive->drive_type != IDE_NONE) {
- PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
+ if (dev == NULL) {
+ PrintError("Could not attach device %s\n", dev_id);
+ V3_Free(ide);
+ return -1;
+ }
+
+ if (init_ide_state(ide) == -1) {
+ PrintError("Failed to initialize IDE state\n");
+ v3_remove_device(dev);
return -1;
}
- strncpy(drive->model, dev_name, sizeof(drive->model) - 1);
+ PrintDebug("Connecting to IDE IO ports\n");
+
+ ret |= v3_dev_hook_io(dev, PRI_DATA_PORT,
+ &ide_read_data_port, &write_data_port);
+ ret |= v3_dev_hook_io(dev, PRI_FEATURES_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_SECT_CNT_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_SECT_NUM_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_CYL_LOW_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_CYL_HIGH_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_DRV_SEL_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, PRI_CMD_PORT,
+ &read_port_std, &write_cmd_port);
+
+ ret |= v3_dev_hook_io(dev, SEC_DATA_PORT,
+ &ide_read_data_port, &write_data_port);
+ ret |= v3_dev_hook_io(dev, SEC_FEATURES_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_SECT_CNT_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_SECT_NUM_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_CYL_LOW_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_CYL_HIGH_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_DRV_SEL_PORT,
+ &read_port_std, &write_port_std);
+ ret |= v3_dev_hook_io(dev, SEC_CMD_PORT,
+ &read_port_std, &write_cmd_port);
+
- while (strlen((char *)(drive->model)) < 40) {
- strcat((char*)(drive->model), " ");
+ ret |= v3_dev_hook_io(dev, PRI_CTRL_PORT,
+ &read_port_std, &write_port_std);
+
+ ret |= v3_dev_hook_io(dev, SEC_CTRL_PORT,
+ &read_port_std, &write_port_std);
+
+
+ ret |= v3_dev_hook_io(dev, SEC_ADDR_REG_PORT,
+ &read_port_std, &write_port_std);
+
+ ret |= v3_dev_hook_io(dev, PRI_ADDR_REG_PORT,
+ &read_port_std, &write_port_std);
+
+
+ if (ret != 0) {
+ PrintError("Error hooking IDE IO port\n");
+ v3_remove_device(dev);
+ return -1;
}
- drive->drive_type = IDE_CDROM;
+ if (ide->pci_bus) {
+ struct v3_pci_bar bars[6];
+ struct v3_southbridge * southbridge = (struct v3_southbridge *)(ide->southbridge);
+ struct pci_device * sb_pci = (struct pci_device *)(southbridge->southbridge_pci);
+ struct pci_device * pci_dev = NULL;
+ int i;
- drive->cd_ops = ops;
+ PrintDebug("Connecting IDE to PCI bus\n");
- drive->private_data = private_data;
+ for (i = 0; i < 6; i++) {
+ bars[i].type = PCI_BAR_NONE;
+ }
- return 0;
-}
+ bars[4].type = PCI_BAR_IO;
+ // bars[4].default_base_port = PRI_DEFAULT_DMA_PORT;
+ bars[4].default_base_port = -1;
+ bars[4].num_ports = 16;
+ bars[4].io_read = read_dma_port;
+ bars[4].io_write = write_dma_port;
+ bars[4].private_data = ide;
-int v3_ide_register_harddisk(struct vm_device * ide_dev,
- uint_t bus_num,
- uint_t drive_num,
- char * dev_name,
- struct v3_ide_hd_ops * ops,
- void * private_data) {
+ pci_dev = v3_pci_register_device(ide->pci_bus, PCI_STD_DEVICE, 0, sb_pci->dev_num, 1,
+ "PIIX3_IDE", bars,
+ pci_config_update, NULL, NULL, ide);
- struct ide_internal * ide = (struct ide_internal *)(ide_dev->private_data);
- struct ide_channel * channel = NULL;
- struct ide_drive * drive = NULL;
+ if (pci_dev == NULL) {
+ PrintError("Failed to register IDE BUS %d with PCI\n", i);
+ v3_remove_device(dev);
+ return -1;
+ }
- V3_ASSERT((bus_num >= 0) && (bus_num < 2));
- V3_ASSERT((drive_num >= 0) && (drive_num < 2));
+ /* This is for CMD646 devices
+ pci_dev->config_header.vendor_id = 0x1095;
+ pci_dev->config_header.device_id = 0x0646;
+ pci_dev->config_header.revision = 0x8f07;
+ */
- channel = &(ide->channels[bus_num]);
- drive = &(channel->drives[drive_num]);
-
- if (drive->drive_type != IDE_NONE) {
- PrintError("Device slot (bus=%d, drive=%d) already occupied\n", bus_num, drive_num);
- return -1;
- }
+ pci_dev->config_header.vendor_id = 0x8086;
+ pci_dev->config_header.device_id = 0x7010;
+ pci_dev->config_header.revision = 0x00;
- strncpy(drive->model, dev_name, sizeof(drive->model) - 1);
+ pci_dev->config_header.prog_if = 0x80; // Master IDE device
+ pci_dev->config_header.subclass = PCI_STORAGE_SUBCLASS_IDE;
+ pci_dev->config_header.class = PCI_CLASS_STORAGE;
- drive->drive_type = IDE_DISK;
+ pci_dev->config_header.command = 0;
+ pci_dev->config_header.status = 0x0280;
- drive->hd_state.accessed = 0;
- drive->hd_state.mult_sector_num = 1;
+ ide->ide_pci = pci_dev;
- drive->hd_ops = ops;
- drive->private_data = private_data;
+ }
+
+ if (v3_dev_add_blk_frontend(vm, dev_id, connect_fn, (void *)ide) == -1) {
+ PrintError("Could not register %s as frontend\n", dev_id);
+ v3_remove_device(dev);
+ return -1;
+ }
+
+
+ PrintDebug("IDE Initialized\n");
return 0;
}
+device_register("IDE", ide_init)
+
+
+
+int v3_ide_get_geometry(void * ide_data, int channel_num, int drive_num,
+ uint32_t * cylinders, uint32_t * heads, uint32_t * sectors) {
+
+ struct ide_internal * ide = ide_data;
+ struct ide_channel * channel = &(ide->channels[channel_num]);
+ struct ide_drive * drive = &(channel->drives[drive_num]);
+
+ if (drive->drive_type == BLOCK_NONE) {
+ return -1;
+ }
+
+ *cylinders = drive->num_cylinders;
+ *heads = drive->num_heads;
+ *sectors = drive->num_sectors;
+
+ return 0;
+}
