--- /dev/null
+/*
+ * QEMU IDE disk and CD-ROM Emulator
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <getopt.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <time.h>
+#include <sys/time.h>
+#include <malloc.h>
+#include <termios.h>
+#include <sys/poll.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <netinet/in.h>
+
+#include "cpu.h"
+#include "exec-all.h"
+
+#include "vl.h"
+
+#define NO_THUNK_TYPE_SIZE
+#include "thunk.h"
+
+/* debug IDE devices */
+//#define DEBUG_IDE
+//#define DEBUG_IDE_ATAPI
+
+/* Bits of HD_STATUS */
+#define ERR_STAT 0x01
+#define INDEX_STAT 0x02
+#define ECC_STAT 0x04 /* Corrected error */
+#define DRQ_STAT 0x08
+#define SEEK_STAT 0x10
+#define SRV_STAT 0x10
+#define WRERR_STAT 0x20
+#define READY_STAT 0x40
+#define BUSY_STAT 0x80
+
+/* Bits for HD_ERROR */
+#define MARK_ERR 0x01 /* Bad address mark */
+#define TRK0_ERR 0x02 /* couldn't find track 0 */
+#define ABRT_ERR 0x04 /* Command aborted */
+#define MCR_ERR 0x08 /* media change request */
+#define ID_ERR 0x10 /* ID field not found */
+#define MC_ERR 0x20 /* media changed */
+#define ECC_ERR 0x40 /* Uncorrectable ECC error */
+#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
+#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
+
+/* Bits of HD_NSECTOR */
+#define CD 0x01
+#define IO 0x02
+#define REL 0x04
+#define TAG_MASK 0xf8
+
+#define IDE_CMD_RESET 0x04
+#define IDE_CMD_DISABLE_IRQ 0x02
+
+/* ATA/ATAPI Commands pre T13 Spec */
+#define WIN_NOP 0x00
+/*
+ * 0x01->0x02 Reserved
+ */
+#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
+/*
+ * 0x04->0x07 Reserved
+ */
+#define WIN_SRST 0x08 /* ATAPI soft reset command */
+#define WIN_DEVICE_RESET 0x08
+/*
+ * 0x09->0x0F Reserved
+ */
+#define WIN_RECAL 0x10
+#define WIN_RESTORE WIN_RECAL
+/*
+ * 0x10->0x1F Reserved
+ */
+#define WIN_READ 0x20 /* 28-Bit */
+#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
+#define WIN_READ_LONG 0x22 /* 28-Bit */
+#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
+#define WIN_READ_EXT 0x24 /* 48-Bit */
+#define WIN_READDMA_EXT 0x25 /* 48-Bit */
+#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
+#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
+/*
+ * 0x28
+ */
+#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
+/*
+ * 0x2A->0x2F Reserved
+ */
+#define WIN_WRITE 0x30 /* 28-Bit */
+#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
+#define WIN_WRITE_LONG 0x32 /* 28-Bit */
+#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
+#define WIN_WRITE_EXT 0x34 /* 48-Bit */
+#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
+#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
+#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
+#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
+#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
+/*
+ * 0x3A->0x3B Reserved
+ */
+#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
+/*
+ * 0x3D->0x3F Reserved
+ */
+#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
+#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
+#define WIN_VERIFY_EXT 0x42 /* 48-Bit */
+/*
+ * 0x43->0x4F Reserved
+ */
+#define WIN_FORMAT 0x50
+/*
+ * 0x51->0x5F Reserved
+ */
+#define WIN_INIT 0x60
+/*
+ * 0x61->0x5F Reserved
+ */
+#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
+#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
+#define WIN_DIAGNOSE 0x90
+#define WIN_SPECIFY 0x91 /* set drive geometry translation */
+#define WIN_DOWNLOAD_MICROCODE 0x92
+#define WIN_STANDBYNOW2 0x94
+#define WIN_STANDBY2 0x96
+#define WIN_SETIDLE2 0x97
+#define WIN_CHECKPOWERMODE2 0x98
+#define WIN_SLEEPNOW2 0x99
+/*
+ * 0x9A VENDOR
+ */
+#define WIN_PACKETCMD 0xA0 /* Send a packet command. */
+#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
+#define WIN_QUEUED_SERVICE 0xA2
+#define WIN_SMART 0xB0 /* self-monitoring and reporting */
+#define CFA_ERASE_SECTORS 0xC0
+#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
+#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
+#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
+#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
+#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
+#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
+#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
+#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
+#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
+#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
+#define WIN_GETMEDIASTATUS 0xDA
+#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
+#define WIN_POSTBOOT 0xDC
+#define WIN_PREBOOT 0xDD
+#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
+#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
+#define WIN_STANDBYNOW1 0xE0
+#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
+#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
+#define WIN_SETIDLE1 0xE3
+#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
+#define WIN_CHECKPOWERMODE1 0xE5
+#define WIN_SLEEPNOW1 0xE6
+#define WIN_FLUSH_CACHE 0xE7
+#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
+#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
+ /* SET_FEATURES 0x22 or 0xDD */
+#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
+#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
+#define WIN_MEDIAEJECT 0xED
+#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
+#define WIN_SETFEATURES 0xEF /* set special drive features */
+#define EXABYTE_ENABLE_NEST 0xF0
+#define WIN_SECURITY_SET_PASS 0xF1
+#define WIN_SECURITY_UNLOCK 0xF2
+#define WIN_SECURITY_ERASE_PREPARE 0xF3
+#define WIN_SECURITY_ERASE_UNIT 0xF4
+#define WIN_SECURITY_FREEZE_LOCK 0xF5
+#define WIN_SECURITY_DISABLE 0xF6
+#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
+#define WIN_SET_MAX 0xF9
+#define DISABLE_SEAGATE 0xFB
+
+/* set to 1 set disable mult support */
+#define MAX_MULT_SECTORS 8
+
+/* ATAPI defines */
+
+#define ATAPI_PACKET_SIZE 12
+
+/* The generic packet command opcodes for CD/DVD Logical Units,
+ * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
+#define GPCMD_BLANK 0xa1
+#define GPCMD_CLOSE_TRACK 0x5b
+#define GPCMD_FLUSH_CACHE 0x35
+#define GPCMD_FORMAT_UNIT 0x04
+#define GPCMD_GET_CONFIGURATION 0x46
+#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
+#define GPCMD_GET_PERFORMANCE 0xac
+#define GPCMD_INQUIRY 0x12
+#define GPCMD_LOAD_UNLOAD 0xa6
+#define GPCMD_MECHANISM_STATUS 0xbd
+#define GPCMD_MODE_SELECT_10 0x55
+#define GPCMD_MODE_SENSE_10 0x5a
+#define GPCMD_PAUSE_RESUME 0x4b
+#define GPCMD_PLAY_AUDIO_10 0x45
+#define GPCMD_PLAY_AUDIO_MSF 0x47
+#define GPCMD_PLAY_AUDIO_TI 0x48
+#define GPCMD_PLAY_CD 0xbc
+#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
+#define GPCMD_READ_10 0x28
+#define GPCMD_READ_12 0xa8
+#define GPCMD_READ_CDVD_CAPACITY 0x25
+#define GPCMD_READ_CD 0xbe
+#define GPCMD_READ_CD_MSF 0xb9
+#define GPCMD_READ_DISC_INFO 0x51
+#define GPCMD_READ_DVD_STRUCTURE 0xad
+#define GPCMD_READ_FORMAT_CAPACITIES 0x23
+#define GPCMD_READ_HEADER 0x44
+#define GPCMD_READ_TRACK_RZONE_INFO 0x52
+#define GPCMD_READ_SUBCHANNEL 0x42
+#define GPCMD_READ_TOC_PMA_ATIP 0x43
+#define GPCMD_REPAIR_RZONE_TRACK 0x58
+#define GPCMD_REPORT_KEY 0xa4
+#define GPCMD_REQUEST_SENSE 0x03
+#define GPCMD_RESERVE_RZONE_TRACK 0x53
+#define GPCMD_SCAN 0xba
+#define GPCMD_SEEK 0x2b
+#define GPCMD_SEND_DVD_STRUCTURE 0xad
+#define GPCMD_SEND_EVENT 0xa2
+#define GPCMD_SEND_KEY 0xa3
+#define GPCMD_SEND_OPC 0x54
+#define GPCMD_SET_READ_AHEAD 0xa7
+#define GPCMD_SET_STREAMING 0xb6
+#define GPCMD_START_STOP_UNIT 0x1b
+#define GPCMD_STOP_PLAY_SCAN 0x4e
+#define GPCMD_TEST_UNIT_READY 0x00
+#define GPCMD_VERIFY_10 0x2f
+#define GPCMD_WRITE_10 0x2a
+#define GPCMD_WRITE_AND_VERIFY_10 0x2e
+/* This is listed as optional in ATAPI 2.6, but is (curiously)
+ * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
+ * Table 377 as an MMC command for SCSi devices though... Most ATAPI
+ * drives support it. */
+#define GPCMD_SET_SPEED 0xbb
+/* This seems to be a SCSI specific CD-ROM opcode
+ * to play data at track/index */
+#define GPCMD_PLAYAUDIO_TI 0x48
+/*
+ * From MS Media Status Notification Support Specification. For
+ * older drives only.
+ */
+#define GPCMD_GET_MEDIA_STATUS 0xda
+
+/* Mode page codes for mode sense/set */
+#define GPMODE_R_W_ERROR_PAGE 0x01
+#define GPMODE_WRITE_PARMS_PAGE 0x05
+#define GPMODE_AUDIO_CTL_PAGE 0x0e
+#define GPMODE_POWER_PAGE 0x1a
+#define GPMODE_FAULT_FAIL_PAGE 0x1c
+#define GPMODE_TO_PROTECT_PAGE 0x1d
+#define GPMODE_CAPABILITIES_PAGE 0x2a
+#define GPMODE_ALL_PAGES 0x3f
+/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
+ * of MODE_SENSE_POWER_PAGE */
+#define GPMODE_CDROM_PAGE 0x0d
+
+#define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */
+#define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */
+#define ATAPI_INT_REASON_REL 0x04
+#define ATAPI_INT_REASON_TAG 0xf8
+
+/* same constants as bochs */
+#define ASC_LOGICAL_BLOCK_OOR 0x21
+#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
+#define ASC_MEDIUM_NOT_PRESENT 0x3a
+#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39
+
+#define SENSE_NONE 0
+#define SENSE_NOT_READY 2
+#define SENSE_ILLEGAL_REQUEST 5
+#define SENSE_UNIT_ATTENTION 6
+
+struct IDEState;
+
+typedef void EndTransferFunc(struct IDEState *);
+
+typedef struct IDEState {
+ /* ide config */
+ int is_cdrom;
+ int cdrom_locked;
+ int cylinders, heads, sectors;
+ int64_t nb_sectors;
+ int mult_sectors;
+ int irq;
+ /* ide regs */
+ uint8_t feature;
+ uint8_t error;
+ uint16_t nsector; /* 0 is 256 to ease computations */
+ uint8_t sector;
+ uint8_t lcyl;
+ uint8_t hcyl;
+ uint8_t select;
+ uint8_t status;
+ /* 0x3f6 command, only meaningful for drive 0 */
+ uint8_t cmd;
+ /* depends on bit 4 in select, only meaningful for drive 0 */
+ struct IDEState *cur_drive;
+ BlockDriverState *bs;
+ /* ATAPI specific */
+ uint8_t sense_key;
+ uint8_t asc;
+ int packet_transfer_size;
+ int elementary_transfer_size;
+ int io_buffer_index;
+ int lba;
+ /* transfer handling */
+ int req_nb_sectors; /* number of sectors per interrupt */
+ EndTransferFunc *end_transfer_func;
+ uint8_t *data_ptr;
+ uint8_t *data_end;
+ uint8_t io_buffer[MAX_MULT_SECTORS*512 + 4];
+} IDEState;
+
+IDEState ide_state[MAX_DISKS];
+IDEState *ide_table[0x400 >> 3];
+
+static inline IDEState *get_ide_interface(uint32_t addr)
+{
+ return ide_table[addr >> 3];
+}
+
+static void padstr(char *str, const char *src, int len)
+{
+ int i, v;
+ for(i = 0; i < len; i++) {
+ if (*src)
+ v = *src++;
+ else
+ v = ' ';
+ *(char *)((long)str ^ 1) = v;
+ str++;
+ }
+}
+
+static void ide_identify(IDEState *s)
+{
+ uint16_t *p;
+ unsigned int oldsize;
+
+ memset(s->io_buffer, 0, 512);
+ p = (uint16_t *)s->io_buffer;
+ stw_raw(p + 0, 0x0040);
+ stw_raw(p + 1, s->cylinders);
+ stw_raw(p + 3, s->heads);
+ stw_raw(p + 4, 512 * s->sectors); /* sectors */
+ stw_raw(p + 5, 512); /* sector size */
+ stw_raw(p + 6, s->sectors);
+ padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */
+ stw_raw(p + 20, 3); /* buffer type */
+ stw_raw(p + 21, 512); /* cache size in sectors */
+ stw_raw(p + 22, 4); /* ecc bytes */
+ padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
+ padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); /* model */
+#if MAX_MULT_SECTORS > 1
+ stw_raw(p + 47, MAX_MULT_SECTORS);
+#endif
+ stw_raw(p + 48, 1); /* dword I/O */
+ stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */
+ stw_raw(p + 51, 0x200); /* PIO transfer cycle */
+ stw_raw(p + 52, 0x200); /* DMA transfer cycle */
+ stw_raw(p + 54, s->cylinders);
+ stw_raw(p + 55, s->heads);
+ stw_raw(p + 56, s->sectors);
+ oldsize = s->cylinders * s->heads * s->sectors;
+ stw_raw(p + 57, oldsize);
+ stw_raw(p + 58, oldsize >> 16);
+ if (s->mult_sectors)
+ stw_raw(p + 59, 0x100 | s->mult_sectors);
+ stw_raw(p + 60, s->nb_sectors);
+ stw_raw(p + 61, s->nb_sectors >> 16);
+ stw_raw(p + 80, (1 << 1) | (1 << 2));
+ stw_raw(p + 82, (1 << 14));
+ stw_raw(p + 83, (1 << 14));
+ stw_raw(p + 84, (1 << 14));
+ stw_raw(p + 85, (1 << 14));
+ stw_raw(p + 86, 0);
+ stw_raw(p + 87, (1 << 14));
+}
+
+static void ide_atapi_identify(IDEState *s)
+{
+ uint16_t *p;
+
+ memset(s->io_buffer, 0, 512);
+ p = (uint16_t *)s->io_buffer;
+ /* Removable CDROM, 50us response, 12 byte packets */
+ stw_raw(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
+ stw_raw(p + 1, s->cylinders);
+ stw_raw(p + 3, s->heads);
+ stw_raw(p + 4, 512 * s->sectors); /* sectors */
+ stw_raw(p + 5, 512); /* sector size */
+ stw_raw(p + 6, s->sectors);
+ padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */
+ stw_raw(p + 20, 3); /* buffer type */
+ stw_raw(p + 21, 512); /* cache size in sectors */
+ stw_raw(p + 22, 4); /* ecc bytes */
+ padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
+ padstr((uint8_t *)(p + 27), "QEMU CD-ROM", 40); /* model */
+ stw_raw(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
+ stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */
+ stw_raw(p + 53, 3); /* words 64-70, 54-58 valid */
+ stw_raw(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
+ stw_raw(p + 64, 1); /* PIO modes */
+ stw_raw(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
+ stw_raw(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
+ stw_raw(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
+ stw_raw(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
+
+ stw_raw(p + 71, 30); /* in ns */
+ stw_raw(p + 72, 30); /* in ns */
+
+ stw_raw(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
+}
+
+static void ide_set_signature(IDEState *s)
+{
+ s->select &= 0xf0; /* clear head */
+ /* put signature */
+ s->nsector = 1;
+ s->sector = 1;
+ if (s->is_cdrom) {
+ s->lcyl = 0x14;
+ s->hcyl = 0xeb;
+ } else if (s->bs) {
+ s->lcyl = 0;
+ s->hcyl = 0;
+ } else {
+ s->lcyl = 0xff;
+ s->hcyl = 0xff;
+ }
+}
+
+static inline void ide_abort_command(IDEState *s)
+{
+ s->status = READY_STAT | ERR_STAT;
+ s->error = ABRT_ERR;
+}
+
+static inline void ide_set_irq(IDEState *s)
+{
+ if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) {
+ pic_set_irq(s->irq, 1);
+ }
+}
+
+/* prepare data transfer and tell what to do after */
+static void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
+ EndTransferFunc *end_transfer_func)
+{
+ s->end_transfer_func = end_transfer_func;
+ s->data_ptr = buf;
+ s->data_end = buf + size;
+ s->status |= DRQ_STAT;
+}
+
+static void ide_transfer_stop(IDEState *s)
+{
+ s->end_transfer_func = ide_transfer_stop;
+ s->data_ptr = s->io_buffer;
+ s->data_end = s->io_buffer;
+ s->status &= ~DRQ_STAT;
+}
+
+static int64_t ide_get_sector(IDEState *s)
+{
+ int64_t sector_num;
+ if (s->select & 0x40) {
+ /* lba */
+ sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
+ (s->lcyl << 8) | s->sector;
+ } else {
+ sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
+ (s->select & 0x0f) * s->sectors +
+ (s->sector - 1);
+ }
+ return sector_num;
+}
+
+static void ide_set_sector(IDEState *s, int64_t sector_num)
+{
+ unsigned int cyl, r;
+ if (s->select & 0x40) {
+ s->select = (s->select & 0xf0) | (sector_num >> 24);
+ s->hcyl = (sector_num >> 16);
+ s->lcyl = (sector_num >> 8);
+ s->sector = (sector_num);
+ } else {
+ cyl = sector_num / (s->heads * s->sectors);
+ r = sector_num % (s->heads * s->sectors);
+ s->hcyl = cyl >> 8;
+ s->lcyl = cyl;
+ s->select = (s->select & 0xf0) | (r / s->sectors);
+ s->sector = (r % s->sectors) + 1;
+ }
+}
+
+static void ide_sector_read(IDEState *s)
+{
+ int64_t sector_num;
+ int ret, n;
+
+ s->status = READY_STAT | SEEK_STAT;
+ sector_num = ide_get_sector(s);
+ n = s->nsector;
+ if (n == 0) {
+ /* no more sector to read from disk */
+ ide_transfer_stop(s);
+ } else {
+#if defined(DEBUG_IDE)
+ printf("read sector=%Ld\n", sector_num);
+#endif
+ if (n > s->req_nb_sectors)
+ n = s->req_nb_sectors;
+ ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
+ ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
+ ide_set_irq(s);
+ ide_set_sector(s, sector_num + n);
+ s->nsector -= n;
+ }
+}
+
+static void ide_sector_write(IDEState *s)
+{
+ int64_t sector_num;
+ int ret, n, n1;
+
+ s->status = READY_STAT | SEEK_STAT;
+ sector_num = ide_get_sector(s);
+#if defined(DEBUG_IDE)
+ printf("write sector=%Ld\n", sector_num);
+#endif
+ n = s->nsector;
+ if (n > s->req_nb_sectors)
+ n = s->req_nb_sectors;
+ ret = bdrv_write(s->bs, sector_num, s->io_buffer, n);
+ s->nsector -= n;
+ if (s->nsector == 0) {
+ /* no more sector to write */
+ ide_transfer_stop(s);
+ } else {
+ n1 = s->nsector;
+ if (n1 > s->req_nb_sectors)
+ n1 = s->req_nb_sectors;
+ ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
+ }
+ ide_set_sector(s, sector_num + n);
+ ide_set_irq(s);
+}
+
+static void ide_atapi_cmd_ok(IDEState *s)
+{
+ s->error = 0;
+ s->status = READY_STAT;
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
+ ide_set_irq(s);
+}
+
+static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc)
+{
+#ifdef DEBUG_IDE_ATAPI
+ printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
+#endif
+ s->error = sense_key << 4;
+ s->status = READY_STAT | ERR_STAT;
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
+ s->sense_key = sense_key;
+ s->asc = asc;
+ ide_set_irq(s);
+}
+
+static inline void cpu_to_ube16(uint8_t *buf, int val)
+{
+ buf[0] = val >> 8;
+ buf[1] = val;
+}
+
+static inline void cpu_to_ube32(uint8_t *buf, unsigned int val)
+{
+ buf[0] = val >> 24;
+ buf[1] = val >> 16;
+ buf[2] = val >> 8;
+ buf[3] = val;
+}
+
+static inline int ube16_to_cpu(const uint8_t *buf)
+{
+ return (buf[0] << 8) | buf[1];
+}
+
+static inline int ube32_to_cpu(const uint8_t *buf)
+{
+ return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+}
+
+/* The whole ATAPI transfer logic is handled in this function */
+static void ide_atapi_cmd_reply_end(IDEState *s)
+{
+ int byte_count_limit, size;
+#ifdef DEBUG_IDE_ATAPI
+ printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
+ s->packet_transfer_size,
+ s->elementary_transfer_size,
+ s->io_buffer_index);
+#endif
+ if (s->packet_transfer_size <= 0) {
+ /* end of transfer */
+ ide_transfer_stop(s);
+ s->status = READY_STAT;
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
+ ide_set_irq(s);
+#ifdef DEBUG_IDE_ATAPI
+ printf("status=0x%x\n", s->status);
+#endif
+ } else {
+ /* see if a new sector must be read */
+ if (s->lba != -1 && s->io_buffer_index >= 2048) {
+ bdrv_read(s->bs, (int64_t)s->lba << 2, s->io_buffer, 4);
+ s->lba++;
+ s->io_buffer_index = 0;
+ }
+ if (s->elementary_transfer_size > 0) {
+ /* there are some data left to transmit in this elementary
+ transfer */
+ size = 2048 - s->io_buffer_index;
+ if (size > s->elementary_transfer_size)
+ size = s->elementary_transfer_size;
+ ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
+ size, ide_atapi_cmd_reply_end);
+ s->packet_transfer_size -= size;
+ s->elementary_transfer_size -= size;
+ s->io_buffer_index += size;
+ } else {
+ /* a new transfer is needed */
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
+ byte_count_limit = s->lcyl | (s->hcyl << 8);
+#ifdef DEBUG_IDE_ATAPI
+ printf("byte_count_limit=%d\n", byte_count_limit);
+#endif
+ if (byte_count_limit == 0xffff)
+ byte_count_limit--;
+ size = s->packet_transfer_size;
+ if (size > byte_count_limit) {
+ /* byte count limit must be even if this case */
+ if (byte_count_limit & 1)
+ byte_count_limit--;
+ size = byte_count_limit;
+ } else {
+ s->lcyl = size;
+ s->hcyl = size >> 8;
+ }
+ s->elementary_transfer_size = size;
+ /* we cannot transmit more than one sector at a time */
+ if (s->lba != -1) {
+ if (size > (2048 - s->io_buffer_index))
+ size = (2048 - s->io_buffer_index);
+ }
+ ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
+ size, ide_atapi_cmd_reply_end);
+ s->packet_transfer_size -= size;
+ s->elementary_transfer_size -= size;
+ s->io_buffer_index += size;
+ ide_set_irq(s);
+#ifdef DEBUG_IDE_ATAPI
+ printf("status=0x%x\n", s->status);
+#endif
+ }
+ }
+}
+
+/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
+static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
+{
+ if (size > max_size)
+ size = max_size;
+ s->lba = -1; /* no sector read */
+ s->packet_transfer_size = size;
+ s->elementary_transfer_size = 0;
+ s->io_buffer_index = 0;
+
+ s->status = READY_STAT;
+ ide_atapi_cmd_reply_end(s);
+}
+
+/* start a CD-CDROM read command */
+static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors)
+{
+#ifdef DEBUG_IDE_ATAPI
+ printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors);
+#endif
+ s->lba = lba;
+ s->packet_transfer_size = nb_sectors * 2048;
+ s->elementary_transfer_size = 0;
+ s->io_buffer_index = 2048;
+
+ s->status = READY_STAT;
+ ide_atapi_cmd_reply_end(s);
+}
+
+/* same toc as bochs. Return -1 if error or the toc length */
+static int cdrom_read_toc(IDEState *s, uint8_t *buf, int msf, int start_track)
+{
+ uint8_t *q;
+ int nb_sectors, len;
+
+ if (start_track > 1 && start_track != 0xaa)
+ return -1;
+ q = buf + 2;
+ *q++ = 1;
+ *q++ = 1;
+ if (start_track <= 1) {
+ *q++ = 0; /* reserved */
+ *q++ = 0x14; /* ADR, control */
+ *q++ = 1; /* track number */
+ *q++ = 0; /* reserved */
+ if (msf) {
+ *q++ = 0; /* reserved */
+ *q++ = 0; /* minute */
+ *q++ = 2; /* second */
+ *q++ = 0; /* frame */
+ } else {
+ /* sector 0 */
+ cpu_to_ube32(q, 0);
+ q += 4;
+ }
+ }
+ /* lead out track */
+ *q++ = 0; /* reserved */
+ *q++ = 0x16; /* ADR, control */
+ *q++ = 0xaa; /* track number */
+ *q++ = 0; /* reserved */
+ nb_sectors = s->nb_sectors >> 2;
+ if (msf) {
+ *q++ = 0; /* reserved */
+ *q++ = ((nb_sectors + 150) / 75) / 60;
+ *q++ = ((nb_sectors + 150) / 75) % 60;
+ *q++ = (nb_sectors + 150) % 75;
+ } else {
+ cpu_to_ube32(q, nb_sectors);
+ q += 4;
+ }
+ len = q - buf;
+ cpu_to_ube16(buf, len - 2);
+ return len;
+}
+
+static void ide_atapi_cmd(IDEState *s)
+{
+ const uint8_t *packet;
+ uint8_t *buf;
+ int max_len;
+
+ packet = s->io_buffer;
+ buf = s->io_buffer;
+#ifdef DEBUG_IDE_ATAPI
+ {
+ int i;
+ printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8));
+ for(i = 0; i < ATAPI_PACKET_SIZE; i++) {
+ printf(" %02x", packet[i]);
+ }
+ printf("\n");
+ }
+#endif
+ switch(s->io_buffer[0]) {
+ case GPCMD_TEST_UNIT_READY:
+ if (s->bs) {
+ ide_atapi_cmd_ok(s);
+ } else {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ }
+ break;
+ case GPCMD_MODE_SENSE_10:
+ {
+ int action, code;
+ max_len = ube16_to_cpu(packet + 7);
+ action = packet[2] >> 6;
+ code = packet[2] & 0x3f;
+ switch(action) {
+ case 0: /* current values */
+ switch(code) {
+ case 0x01: /* error recovery */
+ cpu_to_ube16(&buf[0], 16 + 6);
+ buf[2] = 0x70;
+ buf[3] = 0;
+ buf[4] = 0;
+ buf[5] = 0;
+ buf[6] = 0;
+ buf[7] = 0;
+
+ buf[8] = 0x01;
+ buf[9] = 0x06;
+ buf[10] = 0x00;
+ buf[11] = 0x05;
+ buf[12] = 0x00;
+ buf[13] = 0x00;
+ buf[14] = 0x00;
+ buf[15] = 0x00;
+ ide_atapi_cmd_reply(s, 16, max_len);
+ break;
+ case 0x2a:
+ cpu_to_ube16(&buf[0], 28 + 6);
+ buf[2] = 0x70;
+ buf[3] = 0;
+ buf[4] = 0;
+ buf[5] = 0;
+ buf[6] = 0;
+ buf[7] = 0;
+
+ buf[8] = 0x2a;
+ buf[9] = 0x12;
+ buf[10] = 0x00;
+ buf[11] = 0x00;
+
+ buf[12] = 0x70;
+ buf[13] = 3 << 5;
+ buf[14] = (1 << 0) | (1 << 3) | (1 << 5);
+ if (s->cdrom_locked)
+ buf[6] |= 1 << 1;
+ buf[15] = 0x00;
+ cpu_to_ube16(&buf[16], 706);
+ buf[18] = 0;
+ buf[19] = 2;
+ cpu_to_ube16(&buf[20], 512);
+ cpu_to_ube16(&buf[22], 706);
+ buf[24] = 0;
+ buf[25] = 0;
+ buf[26] = 0;
+ buf[27] = 0;
+ ide_atapi_cmd_reply(s, 28, max_len);
+ break;
+ default:
+ goto error_cmd;
+ }
+ break;
+ case 1: /* changeable values */
+ goto error_cmd;
+ case 2: /* default values */
+ goto error_cmd;
+ default:
+ case 3: /* saved values */
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
+ break;
+ }
+ }
+ break;
+ case GPCMD_REQUEST_SENSE:
+ max_len = packet[4];
+ memset(buf, 0, 18);
+ buf[0] = 0x70 | (1 << 7);
+ buf[2] = s->sense_key;
+ buf[7] = 10;
+ buf[12] = s->asc;
+ ide_atapi_cmd_reply(s, 18, max_len);
+ break;
+ case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
+ if (s->bs) {
+ s->cdrom_locked = packet[4] & 1;
+ ide_atapi_cmd_ok(s);
+ } else {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ }
+ break;
+ case GPCMD_READ_10:
+ case GPCMD_READ_12:
+ {
+ int nb_sectors, lba;
+
+ if (!s->bs) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ if (packet[0] == GPCMD_READ_10)
+ nb_sectors = ube16_to_cpu(packet + 7);
+ else
+ nb_sectors = ube32_to_cpu(packet + 6);
+ lba = ube32_to_cpu(packet + 2);
+ if (nb_sectors == 0) {
+ ide_atapi_cmd_ok(s);
+ break;
+ }
+ if (((int64_t)(lba + nb_sectors) << 2) > s->nb_sectors) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_LOGICAL_BLOCK_OOR);
+ break;
+ }
+ ide_atapi_cmd_read(s, lba, nb_sectors);
+ }
+ break;
+ case GPCMD_SEEK:
+ {
+ int lba;
+ if (!s->bs) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ lba = ube32_to_cpu(packet + 2);
+ if (((int64_t)lba << 2) > s->nb_sectors) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_LOGICAL_BLOCK_OOR);
+ break;
+ }
+ ide_atapi_cmd_ok(s);
+ }
+ break;
+ case GPCMD_START_STOP_UNIT:
+ {
+ int start, eject;
+ start = packet[4] & 1;
+ eject = (packet[4] >> 1) & 1;
+
+ /* XXX: currently none implemented */
+ ide_atapi_cmd_ok(s);
+ }
+ break;
+ case GPCMD_MECHANISM_STATUS:
+ {
+ max_len = ube16_to_cpu(packet + 8);
+ cpu_to_ube16(buf, 0);
+ /* no current LBA */
+ buf[2] = 0;
+ buf[3] = 0;
+ buf[4] = 0;
+ buf[5] = 1;
+ cpu_to_ube16(buf + 6, 0);
+ ide_atapi_cmd_reply(s, 8, max_len);
+ }
+ break;
+ case GPCMD_READ_TOC_PMA_ATIP:
+ {
+ int format, msf, start_track, len;
+
+ if (!s->bs) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ max_len = ube16_to_cpu(packet + 7);
+ format = packet[9] >> 6;
+ msf = (packet[1] >> 1) & 1;
+ start_track = packet[6];
+ switch(format) {
+ case 0:
+ len = cdrom_read_toc(s, buf, msf, start_track);
+ if (len < 0)
+ goto error_cmd;
+ ide_atapi_cmd_reply(s, len, max_len);
+ break;
+ case 1:
+ /* multi session : only a single session defined */
+ memset(buf, 0, 12);
+ buf[1] = 0x0a;
+ buf[2] = 0x01;
+ buf[3] = 0x01;
+ ide_atapi_cmd_reply(s, 12, max_len);
+ break;
+ default:
+ goto error_cmd;
+ }
+ }
+ break;
+ case GPCMD_READ_CDVD_CAPACITY:
+ if (!s->bs) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ /* NOTE: it is really the number of sectors minus 1 */
+ cpu_to_ube32(buf, (s->nb_sectors >> 2) - 1);
+ cpu_to_ube32(buf + 4, 2048);
+ ide_atapi_cmd_reply(s, 8, 8);
+ break;
+ default:
+ error_cmd:
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ break;
+ }
+}
+
+static void ide_ioport_write(CPUX86State *env, uint32_t addr, uint32_t val)
+{
+ IDEState *ide_if = get_ide_interface(addr);
+ IDEState *s = ide_if->cur_drive;
+ int unit, n;
+
+#ifdef DEBUG_IDE
+ printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
+#endif
+ addr &= 7;
+ switch(addr) {
+ case 0:
+ break;
+ case 1:
+ s->feature = val;
+ break;
+ case 2:
+ if (val == 0)
+ val = 256;
+ s->nsector = val;
+ break;
+ case 3:
+ s->sector = val;
+ break;
+ case 4:
+ s->lcyl = val;
+ break;
+ case 5:
+ s->hcyl = val;
+ break;
+ case 6:
+ /* select drive */
+ unit = (val >> 4) & 1;
+ s = ide_if + unit;
+ ide_if->cur_drive = s;
+ s->select = val;
+ break;
+ default:
+ case 7:
+ /* command */
+#if defined(DEBUG_IDE)
+ printf("ide: CMD=%02x\n", val);
+#endif
+ switch(val) {
+ case WIN_IDENTIFY:
+ if (s->bs && !s->is_cdrom) {
+ ide_identify(s);
+ s->status = READY_STAT;
+ ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
+ } else {
+ if (s->is_cdrom) {
+ ide_set_signature(s);
+ }
+ ide_abort_command(s);
+ }
+ ide_set_irq(s);
+ break;
+ case WIN_SPECIFY:
+ case WIN_RECAL:
+ s->status = READY_STAT;
+ ide_set_irq(s);
+ break;
+ case WIN_SETMULT:
+ if (s->nsector > MAX_MULT_SECTORS ||
+ s->nsector == 0 ||
+ (s->nsector & (s->nsector - 1)) != 0) {
+ ide_abort_command(s);
+ } else {
+ s->mult_sectors = s->nsector;
+ s->status = READY_STAT;
+ }
+ ide_set_irq(s);
+ break;
+ case WIN_READ:
+ case WIN_READ_ONCE:
+ s->req_nb_sectors = 1;
+ ide_sector_read(s);
+ break;
+ case WIN_WRITE:
+ case WIN_WRITE_ONCE:
+ s->status = SEEK_STAT;
+ s->req_nb_sectors = 1;
+ ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
+ break;
+ case WIN_MULTREAD:
+ if (!s->mult_sectors)
+ goto abort_cmd;
+ s->req_nb_sectors = s->mult_sectors;
+ ide_sector_read(s);
+ break;
+ case WIN_MULTWRITE:
+ if (!s->mult_sectors)
+ goto abort_cmd;
+ s->status = SEEK_STAT;
+ s->req_nb_sectors = s->mult_sectors;
+ n = s->nsector;
+ if (n > s->req_nb_sectors)
+ n = s->req_nb_sectors;
+ ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
+ break;
+ case WIN_READ_NATIVE_MAX:
+ ide_set_sector(s, s->nb_sectors - 1);
+ s->status = READY_STAT;
+ ide_set_irq(s);
+ break;
+
+ /* ATAPI commands */
+ case WIN_PIDENTIFY:
+ if (s->is_cdrom) {
+ ide_atapi_identify(s);
+ s->status = READY_STAT;
+ ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
+ } else {
+ ide_abort_command(s);
+ }
+ ide_set_irq(s);
+ break;
+ case WIN_SRST:
+ if (!s->is_cdrom)
+ goto abort_cmd;
+ ide_set_signature(s);
+ s->status = READY_STAT;
+ s->error = 0x01;
+ break;
+ case WIN_PACKETCMD:
+ if (!s->is_cdrom)
+ goto abort_cmd;
+ /* DMA or overlapping commands not supported */
+ if ((s->feature & 0x03) != 0)
+ goto abort_cmd;
+ s->nsector = 1;
+ ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
+ ide_atapi_cmd);
+ break;
+ default:
+ abort_cmd:
+ ide_abort_command(s);
+ ide_set_irq(s);
+ break;
+ }
+ }
+}
+
+static uint32_t ide_ioport_read(CPUX86State *env, uint32_t addr1)
+{
+ IDEState *s = get_ide_interface(addr1)->cur_drive;
+ uint32_t addr;
+ int ret;
+
+ addr = addr1 & 7;
+ switch(addr) {
+ case 0:
+ ret = 0xff;
+ break;
+ case 1:
+ ret = s->error;
+ break;
+ case 2:
+ ret = s->nsector & 0xff;
+ break;
+ case 3:
+ ret = s->sector;
+ break;
+ case 4:
+ ret = s->lcyl;
+ break;
+ case 5:
+ ret = s->hcyl;
+ break;
+ case 6:
+ ret = s->select;
+ break;
+ default:
+ case 7:
+ ret = s->status;
+ pic_set_irq(s->irq, 0);
+ break;
+ }
+#ifdef DEBUG_IDE
+ printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
+#endif
+ return ret;
+}
+
+static uint32_t ide_status_read(CPUX86State *env, uint32_t addr)
+{
+ IDEState *s = get_ide_interface(addr)->cur_drive;
+ int ret;
+ ret = s->status;
+#ifdef DEBUG_IDE
+ printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
+#endif
+ return ret;
+}
+
+static void ide_cmd_write(CPUX86State *env, uint32_t addr, uint32_t val)
+{
+ IDEState *ide_if = get_ide_interface(addr);
+ IDEState *s;
+ int i;
+
+#ifdef DEBUG_IDE
+ printf("ide: write control addr=0x%x val=%02x\n", addr, val);
+#endif
+ /* common for both drives */
+ if (!(ide_if[0].cmd & IDE_CMD_RESET) &&
+ (val & IDE_CMD_RESET)) {
+ /* reset low to high */
+ for(i = 0;i < 2; i++) {
+ s = &ide_if[i];
+ s->status = BUSY_STAT | SEEK_STAT;
+ s->error = 0x01;
+ }
+ } else if ((ide_if[0].cmd & IDE_CMD_RESET) &&
+ !(val & IDE_CMD_RESET)) {
+ /* high to low */
+ for(i = 0;i < 2; i++) {
+ s = &ide_if[i];
+ s->status = READY_STAT;
+ ide_set_signature(s);
+ }
+ }
+
+ ide_if[0].cmd = val;
+ ide_if[1].cmd = val;
+}
+
+static void ide_data_writew(CPUX86State *env, uint32_t addr, uint32_t val)
+{
+ IDEState *s = get_ide_interface(addr)->cur_drive;
+ uint8_t *p;
+
+ p = s->data_ptr;
+ *(uint16_t *)p = tswap16(val);
+ p += 2;
+ s->data_ptr = p;
+ if (p >= s->data_end)
+ s->end_transfer_func(s);
+}
+
+static uint32_t ide_data_readw(CPUX86State *env, uint32_t addr)
+{
+ IDEState *s = get_ide_interface(addr)->cur_drive;
+ uint8_t *p;
+ int ret;
+ p = s->data_ptr;
+ ret = tswap16(*(uint16_t *)p);
+ p += 2;
+ s->data_ptr = p;
+ if (p >= s->data_end)
+ s->end_transfer_func(s);
+ return ret;
+}
+
+static void ide_data_writel(CPUX86State *env, uint32_t addr, uint32_t val)
+{
+ IDEState *s = get_ide_interface(addr)->cur_drive;
+ uint8_t *p;
+
+ p = s->data_ptr;
+ *(uint32_t *)p = tswap32(val);
+ p += 4;
+ s->data_ptr = p;
+ if (p >= s->data_end)
+ s->end_transfer_func(s);
+}
+
+static uint32_t ide_data_readl(CPUX86State *env, uint32_t addr)
+{
+ IDEState *s = get_ide_interface(addr)->cur_drive;
+ uint8_t *p;
+ int ret;
+
+ p = s->data_ptr;
+ ret = tswap32(*(uint32_t *)p);
+ p += 4;
+ s->data_ptr = p;
+ if (p >= s->data_end)
+ s->end_transfer_func(s);
+ return ret;
+}
+
+static void ide_reset(IDEState *s)
+{
+ s->mult_sectors = MAX_MULT_SECTORS;
+ s->cur_drive = s;
+ s->select = 0xa0;
+ s->status = READY_STAT;
+ ide_set_signature(s);
+}
+
+struct partition {
+ uint8_t boot_ind; /* 0x80 - active */
+ uint8_t head; /* starting head */
+ uint8_t sector; /* starting sector */
+ uint8_t cyl; /* starting cylinder */
+ uint8_t sys_ind; /* What partition type */
+ uint8_t end_head; /* end head */
+ uint8_t end_sector; /* end sector */
+ uint8_t end_cyl; /* end cylinder */
+ uint32_t start_sect; /* starting sector counting from 0 */
+ uint32_t nr_sects; /* nr of sectors in partition */
+} __attribute__((packed));
+
+/* try to guess the IDE geometry from the MSDOS partition table */
+static void ide_guess_geometry(IDEState *s)
+{
+ uint8_t buf[512];
+ int ret, i;
+ struct partition *p;
+ uint32_t nr_sects;
+
+ if (s->cylinders != 0)
+ return;
+ ret = bdrv_read(s->bs, 0, buf, 1);
+ if (ret < 0)
+ return;
+ /* test msdos magic */
+ if (buf[510] != 0x55 || buf[511] != 0xaa)
+ return;
+ for(i = 0; i < 4; i++) {
+ p = ((struct partition *)(buf + 0x1be)) + i;
+ nr_sects = tswap32(p->nr_sects);
+ if (nr_sects && p->end_head) {
+ /* We make the assumption that the partition terminates on
+ a cylinder boundary */
+ s->heads = p->end_head + 1;
+ s->sectors = p->end_sector & 63;
+ s->cylinders = s->nb_sectors / (s->heads * s->sectors);
+#if 0
+ printf("guessed partition: CHS=%d %d %d\n",
+ s->cylinders, s->heads, s->sectors);
+#endif
+ }
+ }
+}
+
+void ide_init(void)
+{
+ IDEState *s;
+ int i, cylinders, iobase, iobase2;
+ int64_t nb_sectors;
+ static const int ide_iobase[2] = { 0x1f0, 0x170 };
+ static const int ide_iobase2[2] = { 0x3f6, 0x376 };
+ static const int ide_irq[2] = { 14, 15 };
+
+ for(i = 0; i < MAX_DISKS; i++) {
+ s = &ide_state[i];
+ s->bs = bs_table[i];
+ if (s->bs) {
+ bdrv_get_geometry(s->bs, &nb_sectors);
+ s->nb_sectors = nb_sectors;
+ ide_guess_geometry(s);
+ if (s->cylinders == 0) {
+ /* if no geometry, use a LBA compatible one */
+ cylinders = nb_sectors / (16 * 63);
+ if (cylinders > 16383)
+ cylinders = 16383;
+ else if (cylinders < 2)
+ cylinders = 2;
+ s->cylinders = cylinders;
+ s->heads = 16;
+ s->sectors = 63;
+ }
+ }
+ s->irq = ide_irq[i >> 1];
+ ide_reset(s);
+ }
+ for(i = 0; i < (MAX_DISKS / 2); i++) {
+ iobase = ide_iobase[i];
+ iobase2 = ide_iobase2[i];
+ ide_table[iobase >> 3] = &ide_state[2 * i];
+ if (ide_iobase2[i])
+ ide_table[iobase2 >> 3] = &ide_state[2 * i];
+ register_ioport_write(iobase, 8, ide_ioport_write, 1);
+ register_ioport_read(iobase, 8, ide_ioport_read, 1);
+ register_ioport_read(iobase2, 1, ide_status_read, 1);
+ register_ioport_write(iobase2, 1, ide_cmd_write, 1);
+
+ /* data ports */
+ register_ioport_write(iobase, 2, ide_data_writew, 2);
+ register_ioport_read(iobase, 2, ide_data_readw, 2);
+ register_ioport_write(iobase, 4, ide_data_writel, 4);
+ register_ioport_read(iobase, 4, ide_data_readl, 4);
+ }
+}
+
+void ide_set_geometry(int n, int cyls, int heads, int secs)
+{
+ ide_state[n].cylinders = cyls;
+ ide_state[n].heads = heads;
+ ide_state[n].sectors = secs;
+}
+
+void ide_set_cdrom(int n, int is_cdrom)
+{
+ ide_state[n].is_cdrom = is_cdrom;
+}
/* output Bochs bios info messages */
//#define DEBUG_BIOS
-/* debug IDE devices */
-//#define DEBUG_IDE
-//#define DEBUG_IDE_ATAPI
-
/* debug PIC */
//#define DEBUG_PIC
#define GUI_REFRESH_INTERVAL 30
-#define MAX_DISKS 4
-
/* from plex86 (BSD license) */
struct __attribute__ ((packed)) linux_params {
// For 0x00..0x3f, see 'struct screen_info' in linux/include/linux/tty.h.
ne2000_reset();
}
-/***********************************************************/
-/* ide emulation */
-
-/* Bits of HD_STATUS */
-#define ERR_STAT 0x01
-#define INDEX_STAT 0x02
-#define ECC_STAT 0x04 /* Corrected error */
-#define DRQ_STAT 0x08
-#define SEEK_STAT 0x10
-#define SRV_STAT 0x10
-#define WRERR_STAT 0x20
-#define READY_STAT 0x40
-#define BUSY_STAT 0x80
-
-/* Bits for HD_ERROR */
-#define MARK_ERR 0x01 /* Bad address mark */
-#define TRK0_ERR 0x02 /* couldn't find track 0 */
-#define ABRT_ERR 0x04 /* Command aborted */
-#define MCR_ERR 0x08 /* media change request */
-#define ID_ERR 0x10 /* ID field not found */
-#define MC_ERR 0x20 /* media changed */
-#define ECC_ERR 0x40 /* Uncorrectable ECC error */
-#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
-#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
-
-/* Bits of HD_NSECTOR */
-#define CD 0x01
-#define IO 0x02
-#define REL 0x04
-#define TAG_MASK 0xf8
-
-#define IDE_CMD_RESET 0x04
-#define IDE_CMD_DISABLE_IRQ 0x02
-
-/* ATA/ATAPI Commands pre T13 Spec */
-#define WIN_NOP 0x00
-/*
- * 0x01->0x02 Reserved
- */
-#define CFA_REQ_EXT_ERROR_CODE 0x03 /* CFA Request Extended Error Code */
-/*
- * 0x04->0x07 Reserved
- */
-#define WIN_SRST 0x08 /* ATAPI soft reset command */
-#define WIN_DEVICE_RESET 0x08
-/*
- * 0x09->0x0F Reserved
- */
-#define WIN_RECAL 0x10
-#define WIN_RESTORE WIN_RECAL
-/*
- * 0x10->0x1F Reserved
- */
-#define WIN_READ 0x20 /* 28-Bit */
-#define WIN_READ_ONCE 0x21 /* 28-Bit without retries */
-#define WIN_READ_LONG 0x22 /* 28-Bit */
-#define WIN_READ_LONG_ONCE 0x23 /* 28-Bit without retries */
-#define WIN_READ_EXT 0x24 /* 48-Bit */
-#define WIN_READDMA_EXT 0x25 /* 48-Bit */
-#define WIN_READDMA_QUEUED_EXT 0x26 /* 48-Bit */
-#define WIN_READ_NATIVE_MAX_EXT 0x27 /* 48-Bit */
-/*
- * 0x28
- */
-#define WIN_MULTREAD_EXT 0x29 /* 48-Bit */
-/*
- * 0x2A->0x2F Reserved
- */
-#define WIN_WRITE 0x30 /* 28-Bit */
-#define WIN_WRITE_ONCE 0x31 /* 28-Bit without retries */
-#define WIN_WRITE_LONG 0x32 /* 28-Bit */
-#define WIN_WRITE_LONG_ONCE 0x33 /* 28-Bit without retries */
-#define WIN_WRITE_EXT 0x34 /* 48-Bit */
-#define WIN_WRITEDMA_EXT 0x35 /* 48-Bit */
-#define WIN_WRITEDMA_QUEUED_EXT 0x36 /* 48-Bit */
-#define WIN_SET_MAX_EXT 0x37 /* 48-Bit */
-#define CFA_WRITE_SECT_WO_ERASE 0x38 /* CFA Write Sectors without erase */
-#define WIN_MULTWRITE_EXT 0x39 /* 48-Bit */
-/*
- * 0x3A->0x3B Reserved
- */
-#define WIN_WRITE_VERIFY 0x3C /* 28-Bit */
-/*
- * 0x3D->0x3F Reserved
- */
-#define WIN_VERIFY 0x40 /* 28-Bit - Read Verify Sectors */
-#define WIN_VERIFY_ONCE 0x41 /* 28-Bit - without retries */
-#define WIN_VERIFY_EXT 0x42 /* 48-Bit */
-/*
- * 0x43->0x4F Reserved
- */
-#define WIN_FORMAT 0x50
-/*
- * 0x51->0x5F Reserved
- */
-#define WIN_INIT 0x60
-/*
- * 0x61->0x5F Reserved
- */
-#define WIN_SEEK 0x70 /* 0x70-0x7F Reserved */
-#define CFA_TRANSLATE_SECTOR 0x87 /* CFA Translate Sector */
-#define WIN_DIAGNOSE 0x90
-#define WIN_SPECIFY 0x91 /* set drive geometry translation */
-#define WIN_DOWNLOAD_MICROCODE 0x92
-#define WIN_STANDBYNOW2 0x94
-#define WIN_STANDBY2 0x96
-#define WIN_SETIDLE2 0x97
-#define WIN_CHECKPOWERMODE2 0x98
-#define WIN_SLEEPNOW2 0x99
-/*
- * 0x9A VENDOR
- */
-#define WIN_PACKETCMD 0xA0 /* Send a packet command. */
-#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
-#define WIN_QUEUED_SERVICE 0xA2
-#define WIN_SMART 0xB0 /* self-monitoring and reporting */
-#define CFA_ERASE_SECTORS 0xC0
-#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
-#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
-#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
-#define WIN_READDMA_QUEUED 0xC7 /* read sectors using Queued DMA transfers */
-#define WIN_READDMA 0xC8 /* read sectors using DMA transfers */
-#define WIN_READDMA_ONCE 0xC9 /* 28-Bit - without retries */
-#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
-#define WIN_WRITEDMA_ONCE 0xCB /* 28-Bit - without retries */
-#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
-#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
-#define WIN_GETMEDIASTATUS 0xDA
-#define WIN_ACKMEDIACHANGE 0xDB /* ATA-1, ATA-2 vendor */
-#define WIN_POSTBOOT 0xDC
-#define WIN_PREBOOT 0xDD
-#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
-#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
-#define WIN_STANDBYNOW1 0xE0
-#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
-#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
-#define WIN_SETIDLE1 0xE3
-#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
-#define WIN_CHECKPOWERMODE1 0xE5
-#define WIN_SLEEPNOW1 0xE6
-#define WIN_FLUSH_CACHE 0xE7
-#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
-#define WIN_WRITE_SAME 0xE9 /* read ata-2 to use */
- /* SET_FEATURES 0x22 or 0xDD */
-#define WIN_FLUSH_CACHE_EXT 0xEA /* 48-Bit */
-#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
-#define WIN_MEDIAEJECT 0xED
-#define WIN_IDENTIFY_DMA 0xEE /* same as WIN_IDENTIFY, but DMA */
-#define WIN_SETFEATURES 0xEF /* set special drive features */
-#define EXABYTE_ENABLE_NEST 0xF0
-#define WIN_SECURITY_SET_PASS 0xF1
-#define WIN_SECURITY_UNLOCK 0xF2
-#define WIN_SECURITY_ERASE_PREPARE 0xF3
-#define WIN_SECURITY_ERASE_UNIT 0xF4
-#define WIN_SECURITY_FREEZE_LOCK 0xF5
-#define WIN_SECURITY_DISABLE 0xF6
-#define WIN_READ_NATIVE_MAX 0xF8 /* return the native maximum address */
-#define WIN_SET_MAX 0xF9
-#define DISABLE_SEAGATE 0xFB
-
-/* set to 1 set disable mult support */
-#define MAX_MULT_SECTORS 8
-
-/* ATAPI defines */
-
-#define ATAPI_PACKET_SIZE 12
-
-/* The generic packet command opcodes for CD/DVD Logical Units,
- * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
-#define GPCMD_BLANK 0xa1
-#define GPCMD_CLOSE_TRACK 0x5b
-#define GPCMD_FLUSH_CACHE 0x35
-#define GPCMD_FORMAT_UNIT 0x04
-#define GPCMD_GET_CONFIGURATION 0x46
-#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
-#define GPCMD_GET_PERFORMANCE 0xac
-#define GPCMD_INQUIRY 0x12
-#define GPCMD_LOAD_UNLOAD 0xa6
-#define GPCMD_MECHANISM_STATUS 0xbd
-#define GPCMD_MODE_SELECT_10 0x55
-#define GPCMD_MODE_SENSE_10 0x5a
-#define GPCMD_PAUSE_RESUME 0x4b
-#define GPCMD_PLAY_AUDIO_10 0x45
-#define GPCMD_PLAY_AUDIO_MSF 0x47
-#define GPCMD_PLAY_AUDIO_TI 0x48
-#define GPCMD_PLAY_CD 0xbc
-#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
-#define GPCMD_READ_10 0x28
-#define GPCMD_READ_12 0xa8
-#define GPCMD_READ_CDVD_CAPACITY 0x25
-#define GPCMD_READ_CD 0xbe
-#define GPCMD_READ_CD_MSF 0xb9
-#define GPCMD_READ_DISC_INFO 0x51
-#define GPCMD_READ_DVD_STRUCTURE 0xad
-#define GPCMD_READ_FORMAT_CAPACITIES 0x23
-#define GPCMD_READ_HEADER 0x44
-#define GPCMD_READ_TRACK_RZONE_INFO 0x52
-#define GPCMD_READ_SUBCHANNEL 0x42
-#define GPCMD_READ_TOC_PMA_ATIP 0x43
-#define GPCMD_REPAIR_RZONE_TRACK 0x58
-#define GPCMD_REPORT_KEY 0xa4
-#define GPCMD_REQUEST_SENSE 0x03
-#define GPCMD_RESERVE_RZONE_TRACK 0x53
-#define GPCMD_SCAN 0xba
-#define GPCMD_SEEK 0x2b
-#define GPCMD_SEND_DVD_STRUCTURE 0xad
-#define GPCMD_SEND_EVENT 0xa2
-#define GPCMD_SEND_KEY 0xa3
-#define GPCMD_SEND_OPC 0x54
-#define GPCMD_SET_READ_AHEAD 0xa7
-#define GPCMD_SET_STREAMING 0xb6
-#define GPCMD_START_STOP_UNIT 0x1b
-#define GPCMD_STOP_PLAY_SCAN 0x4e
-#define GPCMD_TEST_UNIT_READY 0x00
-#define GPCMD_VERIFY_10 0x2f
-#define GPCMD_WRITE_10 0x2a
-#define GPCMD_WRITE_AND_VERIFY_10 0x2e
-/* This is listed as optional in ATAPI 2.6, but is (curiously)
- * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
- * Table 377 as an MMC command for SCSi devices though... Most ATAPI
- * drives support it. */
-#define GPCMD_SET_SPEED 0xbb
-/* This seems to be a SCSI specific CD-ROM opcode
- * to play data at track/index */
-#define GPCMD_PLAYAUDIO_TI 0x48
-/*
- * From MS Media Status Notification Support Specification. For
- * older drives only.
- */
-#define GPCMD_GET_MEDIA_STATUS 0xda
-
-/* Mode page codes for mode sense/set */
-#define GPMODE_R_W_ERROR_PAGE 0x01
-#define GPMODE_WRITE_PARMS_PAGE 0x05
-#define GPMODE_AUDIO_CTL_PAGE 0x0e
-#define GPMODE_POWER_PAGE 0x1a
-#define GPMODE_FAULT_FAIL_PAGE 0x1c
-#define GPMODE_TO_PROTECT_PAGE 0x1d
-#define GPMODE_CAPABILITIES_PAGE 0x2a
-#define GPMODE_ALL_PAGES 0x3f
-/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
- * of MODE_SENSE_POWER_PAGE */
-#define GPMODE_CDROM_PAGE 0x0d
-
-#define ATAPI_INT_REASON_CD 0x01 /* 0 = data transfer */
-#define ATAPI_INT_REASON_IO 0x02 /* 1 = transfer to the host */
-#define ATAPI_INT_REASON_REL 0x04
-#define ATAPI_INT_REASON_TAG 0xf8
-
-/* same constants as bochs */
-#define ASC_LOGICAL_BLOCK_OOR 0x21
-#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
-#define ASC_MEDIUM_NOT_PRESENT 0x3a
-#define ASC_SAVING_PARAMETERS_NOT_SUPPORTED 0x39
-
-#define SENSE_NONE 0
-#define SENSE_NOT_READY 2
-#define SENSE_ILLEGAL_REQUEST 5
-#define SENSE_UNIT_ATTENTION 6
-
-struct IDEState;
-
-typedef void EndTransferFunc(struct IDEState *);
-
-typedef struct IDEState {
- /* ide config */
- int is_cdrom;
- int cdrom_locked;
- int cylinders, heads, sectors;
- int64_t nb_sectors;
- int mult_sectors;
- int irq;
- /* ide regs */
- uint8_t feature;
- uint8_t error;
- uint16_t nsector; /* 0 is 256 to ease computations */
- uint8_t sector;
- uint8_t lcyl;
- uint8_t hcyl;
- uint8_t select;
- uint8_t status;
- /* 0x3f6 command, only meaningful for drive 0 */
- uint8_t cmd;
- /* depends on bit 4 in select, only meaningful for drive 0 */
- struct IDEState *cur_drive;
- BlockDriverState *bs;
- /* ATAPI specific */
- uint8_t sense_key;
- uint8_t asc;
- int packet_transfer_size;
- int elementary_transfer_size;
- int io_buffer_index;
- int lba;
- /* transfer handling */
- int req_nb_sectors; /* number of sectors per interrupt */
- EndTransferFunc *end_transfer_func;
- uint8_t *data_ptr;
- uint8_t *data_end;
- uint8_t io_buffer[MAX_MULT_SECTORS*512 + 4];
-} IDEState;
-
-IDEState ide_state[MAX_DISKS];
-IDEState *ide_table[0x400 >> 3];
-
-static inline IDEState *get_ide_interface(uint32_t addr)
-{
- return ide_table[addr >> 3];
-}
-
-static void padstr(char *str, const char *src, int len)
-{
- int i, v;
- for(i = 0; i < len; i++) {
- if (*src)
- v = *src++;
- else
- v = ' ';
- *(char *)((long)str ^ 1) = v;
- str++;
- }
-}
-
-static void ide_identify(IDEState *s)
-{
- uint16_t *p;
- unsigned int oldsize;
-
- memset(s->io_buffer, 0, 512);
- p = (uint16_t *)s->io_buffer;
- stw_raw(p + 0, 0x0040);
- stw_raw(p + 1, s->cylinders);
- stw_raw(p + 3, s->heads);
- stw_raw(p + 4, 512 * s->sectors); /* sectors */
- stw_raw(p + 5, 512); /* sector size */
- stw_raw(p + 6, s->sectors);
- padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */
- stw_raw(p + 20, 3); /* buffer type */
- stw_raw(p + 21, 512); /* cache size in sectors */
- stw_raw(p + 22, 4); /* ecc bytes */
- padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
- padstr((uint8_t *)(p + 27), "QEMU HARDDISK", 40); /* model */
-#if MAX_MULT_SECTORS > 1
- stw_raw(p + 47, MAX_MULT_SECTORS);
-#endif
- stw_raw(p + 48, 1); /* dword I/O */
- stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */
- stw_raw(p + 51, 0x200); /* PIO transfer cycle */
- stw_raw(p + 52, 0x200); /* DMA transfer cycle */
- stw_raw(p + 54, s->cylinders);
- stw_raw(p + 55, s->heads);
- stw_raw(p + 56, s->sectors);
- oldsize = s->cylinders * s->heads * s->sectors;
- stw_raw(p + 57, oldsize);
- stw_raw(p + 58, oldsize >> 16);
- if (s->mult_sectors)
- stw_raw(p + 59, 0x100 | s->mult_sectors);
- stw_raw(p + 60, s->nb_sectors);
- stw_raw(p + 61, s->nb_sectors >> 16);
- stw_raw(p + 80, (1 << 1) | (1 << 2));
- stw_raw(p + 82, (1 << 14));
- stw_raw(p + 83, (1 << 14));
- stw_raw(p + 84, (1 << 14));
- stw_raw(p + 85, (1 << 14));
- stw_raw(p + 86, 0);
- stw_raw(p + 87, (1 << 14));
-}
-
-static void ide_atapi_identify(IDEState *s)
-{
- uint16_t *p;
-
- memset(s->io_buffer, 0, 512);
- p = (uint16_t *)s->io_buffer;
- /* Removable CDROM, 50us response, 12 byte packets */
- stw_raw(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
- stw_raw(p + 1, s->cylinders);
- stw_raw(p + 3, s->heads);
- stw_raw(p + 4, 512 * s->sectors); /* sectors */
- stw_raw(p + 5, 512); /* sector size */
- stw_raw(p + 6, s->sectors);
- padstr((uint8_t *)(p + 10), "QM00001", 20); /* serial number */
- stw_raw(p + 20, 3); /* buffer type */
- stw_raw(p + 21, 512); /* cache size in sectors */
- stw_raw(p + 22, 4); /* ecc bytes */
- padstr((uint8_t *)(p + 23), QEMU_VERSION, 8); /* firmware version */
- padstr((uint8_t *)(p + 27), "QEMU CD-ROM", 40); /* model */
- stw_raw(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
- stw_raw(p + 49, 1 << 9); /* LBA supported, no DMA */
- stw_raw(p + 53, 3); /* words 64-70, 54-58 valid */
- stw_raw(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
- stw_raw(p + 64, 1); /* PIO modes */
- stw_raw(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
- stw_raw(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
- stw_raw(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
- stw_raw(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
-
- stw_raw(p + 71, 30); /* in ns */
- stw_raw(p + 72, 30); /* in ns */
-
- stw_raw(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
-}
-
-static void ide_set_signature(IDEState *s)
-{
- s->select &= 0xf0; /* clear head */
- /* put signature */
- s->nsector = 1;
- s->sector = 1;
- if (s->is_cdrom) {
- s->lcyl = 0x14;
- s->hcyl = 0xeb;
- } else if (s->bs) {
- s->lcyl = 0;
- s->hcyl = 0;
- } else {
- s->lcyl = 0xff;
- s->hcyl = 0xff;
- }
-}
-
-static inline void ide_abort_command(IDEState *s)
-{
- s->status = READY_STAT | ERR_STAT;
- s->error = ABRT_ERR;
-}
-
-static inline void ide_set_irq(IDEState *s)
-{
- if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) {
- pic_set_irq(s->irq, 1);
- }
-}
-
-/* prepare data transfer and tell what to do after */
-static void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
- EndTransferFunc *end_transfer_func)
-{
- s->end_transfer_func = end_transfer_func;
- s->data_ptr = buf;
- s->data_end = buf + size;
- s->status |= DRQ_STAT;
-}
-
-static void ide_transfer_stop(IDEState *s)
-{
- s->end_transfer_func = ide_transfer_stop;
- s->data_ptr = s->io_buffer;
- s->data_end = s->io_buffer;
- s->status &= ~DRQ_STAT;
-}
-
-static int64_t ide_get_sector(IDEState *s)
-{
- int64_t sector_num;
- if (s->select & 0x40) {
- /* lba */
- sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
- (s->lcyl << 8) | s->sector;
- } else {
- sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
- (s->select & 0x0f) * s->sectors +
- (s->sector - 1);
- }
- return sector_num;
-}
-
-static void ide_set_sector(IDEState *s, int64_t sector_num)
-{
- unsigned int cyl, r;
- if (s->select & 0x40) {
- s->select = (s->select & 0xf0) | (sector_num >> 24);
- s->hcyl = (sector_num >> 16);
- s->lcyl = (sector_num >> 8);
- s->sector = (sector_num);
- } else {
- cyl = sector_num / (s->heads * s->sectors);
- r = sector_num % (s->heads * s->sectors);
- s->hcyl = cyl >> 8;
- s->lcyl = cyl;
- s->select = (s->select & 0xf0) | (r / s->sectors);
- s->sector = (r % s->sectors) + 1;
- }
-}
-
-static void ide_sector_read(IDEState *s)
-{
- int64_t sector_num;
- int ret, n;
-
- s->status = READY_STAT | SEEK_STAT;
- sector_num = ide_get_sector(s);
- n = s->nsector;
- if (n == 0) {
- /* no more sector to read from disk */
- ide_transfer_stop(s);
- } else {
-#if defined(DEBUG_IDE)
- printf("read sector=%Ld\n", sector_num);
-#endif
- if (n > s->req_nb_sectors)
- n = s->req_nb_sectors;
- ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
- ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
- ide_set_irq(s);
- ide_set_sector(s, sector_num + n);
- s->nsector -= n;
- }
-}
-
-static void ide_sector_write(IDEState *s)
-{
- int64_t sector_num;
- int ret, n, n1;
-
- s->status = READY_STAT | SEEK_STAT;
- sector_num = ide_get_sector(s);
-#if defined(DEBUG_IDE)
- printf("write sector=%Ld\n", sector_num);
-#endif
- n = s->nsector;
- if (n > s->req_nb_sectors)
- n = s->req_nb_sectors;
- ret = bdrv_write(s->bs, sector_num, s->io_buffer, n);
- s->nsector -= n;
- if (s->nsector == 0) {
- /* no more sector to write */
- ide_transfer_stop(s);
- } else {
- n1 = s->nsector;
- if (n1 > s->req_nb_sectors)
- n1 = s->req_nb_sectors;
- ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
- }
- ide_set_sector(s, sector_num + n);
- ide_set_irq(s);
-}
-
-static void ide_atapi_cmd_ok(IDEState *s)
-{
- s->error = 0;
- s->status = READY_STAT;
- s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
- ide_set_irq(s);
-}
-
-static void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc)
-{
-#ifdef DEBUG_IDE_ATAPI
- printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
-#endif
- s->error = sense_key << 4;
- s->status = READY_STAT | ERR_STAT;
- s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
- s->sense_key = sense_key;
- s->asc = asc;
- ide_set_irq(s);
-}
-
-static inline void cpu_to_ube16(uint8_t *buf, int val)
-{
- buf[0] = val >> 8;
- buf[1] = val;
-}
-
-static inline void cpu_to_ube32(uint8_t *buf, unsigned int val)
-{
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
-}
-
-static inline int ube16_to_cpu(const uint8_t *buf)
-{
- return (buf[0] << 8) | buf[1];
-}
-
-static inline int ube32_to_cpu(const uint8_t *buf)
-{
- return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
-}
-
-/* The whole ATAPI transfer logic is handled in this function */
-static void ide_atapi_cmd_reply_end(IDEState *s)
-{
- int byte_count_limit, size;
-#ifdef DEBUG_IDE_ATAPI
- printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
- s->packet_transfer_size,
- s->elementary_transfer_size,
- s->io_buffer_index);
-#endif
- if (s->packet_transfer_size <= 0) {
- /* end of transfer */
- ide_transfer_stop(s);
- s->status = READY_STAT;
- s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
- ide_set_irq(s);
-#ifdef DEBUG_IDE_ATAPI
- printf("status=0x%x\n", s->status);
-#endif
- } else {
- /* see if a new sector must be read */
- if (s->lba != -1 && s->io_buffer_index >= 2048) {
- bdrv_read(s->bs, (int64_t)s->lba << 2, s->io_buffer, 4);
- s->lba++;
- s->io_buffer_index = 0;
- }
- if (s->elementary_transfer_size > 0) {
- /* there are some data left to transmit in this elementary
- transfer */
- size = 2048 - s->io_buffer_index;
- if (size > s->elementary_transfer_size)
- size = s->elementary_transfer_size;
- ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
- size, ide_atapi_cmd_reply_end);
- s->packet_transfer_size -= size;
- s->elementary_transfer_size -= size;
- s->io_buffer_index += size;
- } else {
- /* a new transfer is needed */
- s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
- byte_count_limit = s->lcyl | (s->hcyl << 8);
-#ifdef DEBUG_IDE_ATAPI
- printf("byte_count_limit=%d\n", byte_count_limit);
-#endif
- if (byte_count_limit == 0xffff)
- byte_count_limit--;
- size = s->packet_transfer_size;
- if (size > byte_count_limit) {
- /* byte count limit must be even if this case */
- if (byte_count_limit & 1)
- byte_count_limit--;
- size = byte_count_limit;
- } else {
- s->lcyl = size;
- s->hcyl = size >> 8;
- }
- s->elementary_transfer_size = size;
- /* we cannot transmit more than one sector at a time */
- if (s->lba != -1) {
- if (size > (2048 - s->io_buffer_index))
- size = (2048 - s->io_buffer_index);
- }
- ide_transfer_start(s, s->io_buffer + s->io_buffer_index,
- size, ide_atapi_cmd_reply_end);
- s->packet_transfer_size -= size;
- s->elementary_transfer_size -= size;
- s->io_buffer_index += size;
- ide_set_irq(s);
-#ifdef DEBUG_IDE_ATAPI
- printf("status=0x%x\n", s->status);
-#endif
- }
- }
-}
-
-/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
-static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size)
-{
- if (size > max_size)
- size = max_size;
- s->lba = -1; /* no sector read */
- s->packet_transfer_size = size;
- s->elementary_transfer_size = 0;
- s->io_buffer_index = 0;
-
- s->status = READY_STAT;
- ide_atapi_cmd_reply_end(s);
-}
-
-/* start a CD-CDROM read command */
-static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors)
-{
-#ifdef DEBUG_IDE_ATAPI
- printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors);
-#endif
- s->lba = lba;
- s->packet_transfer_size = nb_sectors * 2048;
- s->elementary_transfer_size = 0;
- s->io_buffer_index = 2048;
-
- s->status = READY_STAT;
- ide_atapi_cmd_reply_end(s);
-}
-
-/* same toc as bochs. Return -1 if error or the toc length */
-static int cdrom_read_toc(IDEState *s, uint8_t *buf, int msf, int start_track)
-{
- uint8_t *q;
- int nb_sectors, len;
-
- if (start_track > 1 && start_track != 0xaa)
- return -1;
- q = buf + 2;
- *q++ = 1;
- *q++ = 1;
- if (start_track <= 1) {
- *q++ = 0; /* reserved */
- *q++ = 0x14; /* ADR, control */
- *q++ = 1; /* track number */
- *q++ = 0; /* reserved */
- if (msf) {
- *q++ = 0; /* reserved */
- *q++ = 0; /* minute */
- *q++ = 2; /* second */
- *q++ = 0; /* frame */
- } else {
- /* sector 0 */
- cpu_to_ube32(q, 0);
- q += 4;
- }
- }
- /* lead out track */
- *q++ = 0; /* reserved */
- *q++ = 0x16; /* ADR, control */
- *q++ = 0xaa; /* track number */
- *q++ = 0; /* reserved */
- nb_sectors = s->nb_sectors >> 2;
- if (msf) {
- *q++ = 0; /* reserved */
- *q++ = ((nb_sectors + 150) / 75) / 60;
- *q++ = ((nb_sectors + 150) / 75) % 60;
- *q++ = (nb_sectors + 150) % 75;
- } else {
- cpu_to_ube32(q, nb_sectors);
- q += 4;
- }
- len = q - buf;
- cpu_to_ube16(buf, len - 2);
- return len;
-}
-
-static void ide_atapi_cmd(IDEState *s)
-{
- const uint8_t *packet;
- uint8_t *buf;
- int max_len;
-
- packet = s->io_buffer;
- buf = s->io_buffer;
-#ifdef DEBUG_IDE_ATAPI
- {
- int i;
- printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8));
- for(i = 0; i < ATAPI_PACKET_SIZE; i++) {
- printf(" %02x", packet[i]);
- }
- printf("\n");
- }
-#endif
- switch(s->io_buffer[0]) {
- case GPCMD_TEST_UNIT_READY:
- if (s->bs) {
- ide_atapi_cmd_ok(s);
- } else {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- }
- break;
- case GPCMD_MODE_SENSE_10:
- {
- int action, code;
- max_len = ube16_to_cpu(packet + 7);
- action = packet[2] >> 6;
- code = packet[2] & 0x3f;
- switch(action) {
- case 0: /* current values */
- switch(code) {
- case 0x01: /* error recovery */
- cpu_to_ube16(&buf[0], 16 + 6);
- buf[2] = 0x70;
- buf[3] = 0;
- buf[4] = 0;
- buf[5] = 0;
- buf[6] = 0;
- buf[7] = 0;
-
- buf[8] = 0x01;
- buf[9] = 0x06;
- buf[10] = 0x00;
- buf[11] = 0x05;
- buf[12] = 0x00;
- buf[13] = 0x00;
- buf[14] = 0x00;
- buf[15] = 0x00;
- ide_atapi_cmd_reply(s, 16, max_len);
- break;
- case 0x2a:
- cpu_to_ube16(&buf[0], 28 + 6);
- buf[2] = 0x70;
- buf[3] = 0;
- buf[4] = 0;
- buf[5] = 0;
- buf[6] = 0;
- buf[7] = 0;
-
- buf[8] = 0x2a;
- buf[9] = 0x12;
- buf[10] = 0x00;
- buf[11] = 0x00;
-
- buf[12] = 0x70;
- buf[13] = 3 << 5;
- buf[14] = (1 << 0) | (1 << 3) | (1 << 5);
- if (s->cdrom_locked)
- buf[6] |= 1 << 1;
- buf[15] = 0x00;
- cpu_to_ube16(&buf[16], 706);
- buf[18] = 0;
- buf[19] = 2;
- cpu_to_ube16(&buf[20], 512);
- cpu_to_ube16(&buf[22], 706);
- buf[24] = 0;
- buf[25] = 0;
- buf[26] = 0;
- buf[27] = 0;
- ide_atapi_cmd_reply(s, 28, max_len);
- break;
- default:
- goto error_cmd;
- }
- break;
- case 1: /* changeable values */
- goto error_cmd;
- case 2: /* default values */
- goto error_cmd;
- default:
- case 3: /* saved values */
- ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
- ASC_SAVING_PARAMETERS_NOT_SUPPORTED);
- break;
- }
- }
- break;
- case GPCMD_REQUEST_SENSE:
- max_len = packet[4];
- memset(buf, 0, 18);
- buf[0] = 0x70 | (1 << 7);
- buf[2] = s->sense_key;
- buf[7] = 10;
- buf[12] = s->asc;
- ide_atapi_cmd_reply(s, 18, max_len);
- break;
- case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
- if (s->bs) {
- s->cdrom_locked = packet[4] & 1;
- ide_atapi_cmd_ok(s);
- } else {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- }
- break;
- case GPCMD_READ_10:
- case GPCMD_READ_12:
- {
- int nb_sectors, lba;
-
- if (!s->bs) {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- break;
- }
- if (packet[0] == GPCMD_READ_10)
- nb_sectors = ube16_to_cpu(packet + 7);
- else
- nb_sectors = ube32_to_cpu(packet + 6);
- lba = ube32_to_cpu(packet + 2);
- if (nb_sectors == 0) {
- ide_atapi_cmd_ok(s);
- break;
- }
- if (((int64_t)(lba + nb_sectors) << 2) > s->nb_sectors) {
- ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
- ASC_LOGICAL_BLOCK_OOR);
- break;
- }
- ide_atapi_cmd_read(s, lba, nb_sectors);
- }
- break;
- case GPCMD_SEEK:
- {
- int lba;
- if (!s->bs) {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- break;
- }
- lba = ube32_to_cpu(packet + 2);
- if (((int64_t)lba << 2) > s->nb_sectors) {
- ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
- ASC_LOGICAL_BLOCK_OOR);
- break;
- }
- ide_atapi_cmd_ok(s);
- }
- break;
- case GPCMD_START_STOP_UNIT:
- {
- int start, eject;
- start = packet[4] & 1;
- eject = (packet[4] >> 1) & 1;
-
- /* XXX: currently none implemented */
- ide_atapi_cmd_ok(s);
- }
- break;
- case GPCMD_MECHANISM_STATUS:
- {
- max_len = ube16_to_cpu(packet + 8);
- cpu_to_ube16(buf, 0);
- /* no current LBA */
- buf[2] = 0;
- buf[3] = 0;
- buf[4] = 0;
- buf[5] = 1;
- cpu_to_ube16(buf + 6, 0);
- ide_atapi_cmd_reply(s, 8, max_len);
- }
- break;
- case GPCMD_READ_TOC_PMA_ATIP:
- {
- int format, msf, start_track, len;
-
- if (!s->bs) {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- break;
- }
- max_len = ube16_to_cpu(packet + 7);
- format = packet[9] >> 6;
- msf = (packet[1] >> 1) & 1;
- start_track = packet[6];
- switch(format) {
- case 0:
- len = cdrom_read_toc(s, buf, msf, start_track);
- if (len < 0)
- goto error_cmd;
- ide_atapi_cmd_reply(s, len, max_len);
- break;
- case 1:
- /* multi session : only a single session defined */
- memset(buf, 0, 12);
- buf[1] = 0x0a;
- buf[2] = 0x01;
- buf[3] = 0x01;
- ide_atapi_cmd_reply(s, 12, max_len);
- break;
- default:
- goto error_cmd;
- }
- }
- break;
- case GPCMD_READ_CDVD_CAPACITY:
- if (!s->bs) {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- break;
- }
- /* NOTE: it is really the number of sectors minus 1 */
- cpu_to_ube32(buf, (s->nb_sectors >> 2) - 1);
- cpu_to_ube32(buf + 4, 2048);
- ide_atapi_cmd_reply(s, 8, 8);
- break;
- default:
- error_cmd:
- ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
- ASC_INV_FIELD_IN_CMD_PACKET);
- break;
- }
-}
-
-void ide_ioport_write(CPUX86State *env, uint32_t addr, uint32_t val)
-{
- IDEState *ide_if = get_ide_interface(addr);
- IDEState *s = ide_if->cur_drive;
- int unit, n;
-
-#ifdef DEBUG_IDE
- printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
-#endif
- addr &= 7;
- switch(addr) {
- case 0:
- break;
- case 1:
- s->feature = val;
- break;
- case 2:
- if (val == 0)
- val = 256;
- s->nsector = val;
- break;
- case 3:
- s->sector = val;
- break;
- case 4:
- s->lcyl = val;
- break;
- case 5:
- s->hcyl = val;
- break;
- case 6:
- /* select drive */
- unit = (val >> 4) & 1;
- s = ide_if + unit;
- ide_if->cur_drive = s;
- s->select = val;
- break;
- default:
- case 7:
- /* command */
-#if defined(DEBUG_IDE)
- printf("ide: CMD=%02x\n", val);
-#endif
- switch(val) {
- case WIN_IDENTIFY:
- if (s->bs && !s->is_cdrom) {
- ide_identify(s);
- s->status = READY_STAT;
- ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
- } else {
- if (s->is_cdrom) {
- ide_set_signature(s);
- }
- ide_abort_command(s);
- }
- ide_set_irq(s);
- break;
- case WIN_SPECIFY:
- case WIN_RECAL:
- s->status = READY_STAT;
- ide_set_irq(s);
- break;
- case WIN_SETMULT:
- if (s->nsector > MAX_MULT_SECTORS ||
- s->nsector == 0 ||
- (s->nsector & (s->nsector - 1)) != 0) {
- ide_abort_command(s);
- } else {
- s->mult_sectors = s->nsector;
- s->status = READY_STAT;
- }
- ide_set_irq(s);
- break;
- case WIN_READ:
- case WIN_READ_ONCE:
- s->req_nb_sectors = 1;
- ide_sector_read(s);
- break;
- case WIN_WRITE:
- case WIN_WRITE_ONCE:
- s->status = SEEK_STAT;
- s->req_nb_sectors = 1;
- ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
- break;
- case WIN_MULTREAD:
- if (!s->mult_sectors)
- goto abort_cmd;
- s->req_nb_sectors = s->mult_sectors;
- ide_sector_read(s);
- break;
- case WIN_MULTWRITE:
- if (!s->mult_sectors)
- goto abort_cmd;
- s->status = SEEK_STAT;
- s->req_nb_sectors = s->mult_sectors;
- n = s->nsector;
- if (n > s->req_nb_sectors)
- n = s->req_nb_sectors;
- ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
- break;
- case WIN_READ_NATIVE_MAX:
- ide_set_sector(s, s->nb_sectors - 1);
- s->status = READY_STAT;
- ide_set_irq(s);
- break;
-
- /* ATAPI commands */
- case WIN_PIDENTIFY:
- if (s->is_cdrom) {
- ide_atapi_identify(s);
- s->status = READY_STAT;
- ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
- } else {
- ide_abort_command(s);
- }
- ide_set_irq(s);
- break;
- case WIN_SRST:
- if (!s->is_cdrom)
- goto abort_cmd;
- ide_set_signature(s);
- s->status = READY_STAT;
- s->error = 0x01;
- break;
- case WIN_PACKETCMD:
- if (!s->is_cdrom)
- goto abort_cmd;
- /* DMA or overlapping commands not supported */
- if ((s->feature & 0x03) != 0)
- goto abort_cmd;
- s->nsector = 1;
- ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
- ide_atapi_cmd);
- break;
- default:
- abort_cmd:
- ide_abort_command(s);
- ide_set_irq(s);
- break;
- }
- }
-}
-
-uint32_t ide_ioport_read(CPUX86State *env, uint32_t addr1)
-{
- IDEState *s = get_ide_interface(addr1)->cur_drive;
- uint32_t addr;
- int ret;
-
- addr = addr1 & 7;
- switch(addr) {
- case 0:
- ret = 0xff;
- break;
- case 1:
- ret = s->error;
- break;
- case 2:
- ret = s->nsector & 0xff;
- break;
- case 3:
- ret = s->sector;
- break;
- case 4:
- ret = s->lcyl;
- break;
- case 5:
- ret = s->hcyl;
- break;
- case 6:
- ret = s->select;
- break;
- default:
- case 7:
- ret = s->status;
- pic_set_irq(s->irq, 0);
- break;
- }
-#ifdef DEBUG_IDE
- printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
-#endif
- return ret;
-}
-
-uint32_t ide_status_read(CPUX86State *env, uint32_t addr)
-{
- IDEState *s = get_ide_interface(addr)->cur_drive;
- int ret;
- ret = s->status;
-#ifdef DEBUG_IDE
- printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
-#endif
- return ret;
-}
-
-void ide_cmd_write(CPUX86State *env, uint32_t addr, uint32_t val)
-{
- IDEState *ide_if = get_ide_interface(addr);
- IDEState *s;
- int i;
-
-#ifdef DEBUG_IDE
- printf("ide: write control addr=0x%x val=%02x\n", addr, val);
-#endif
- /* common for both drives */
- if (!(ide_if[0].cmd & IDE_CMD_RESET) &&
- (val & IDE_CMD_RESET)) {
- /* reset low to high */
- for(i = 0;i < 2; i++) {
- s = &ide_if[i];
- s->status = BUSY_STAT | SEEK_STAT;
- s->error = 0x01;
- }
- } else if ((ide_if[0].cmd & IDE_CMD_RESET) &&
- !(val & IDE_CMD_RESET)) {
- /* high to low */
- for(i = 0;i < 2; i++) {
- s = &ide_if[i];
- s->status = READY_STAT;
- ide_set_signature(s);
- }
- }
-
- ide_if[0].cmd = val;
- ide_if[1].cmd = val;
-}
-
-void ide_data_writew(CPUX86State *env, uint32_t addr, uint32_t val)
-{
- IDEState *s = get_ide_interface(addr)->cur_drive;
- uint8_t *p;
-
- p = s->data_ptr;
- *(uint16_t *)p = tswap16(val);
- p += 2;
- s->data_ptr = p;
- if (p >= s->data_end)
- s->end_transfer_func(s);
-}
-
-uint32_t ide_data_readw(CPUX86State *env, uint32_t addr)
-{
- IDEState *s = get_ide_interface(addr)->cur_drive;
- uint8_t *p;
- int ret;
- p = s->data_ptr;
- ret = tswap16(*(uint16_t *)p);
- p += 2;
- s->data_ptr = p;
- if (p >= s->data_end)
- s->end_transfer_func(s);
- return ret;
-}
-
-void ide_data_writel(CPUX86State *env, uint32_t addr, uint32_t val)
-{
- IDEState *s = get_ide_interface(addr)->cur_drive;
- uint8_t *p;
-
- p = s->data_ptr;
- *(uint32_t *)p = tswap32(val);
- p += 4;
- s->data_ptr = p;
- if (p >= s->data_end)
- s->end_transfer_func(s);
-}
-
-uint32_t ide_data_readl(CPUX86State *env, uint32_t addr)
-{
- IDEState *s = get_ide_interface(addr)->cur_drive;
- uint8_t *p;
- int ret;
-
- p = s->data_ptr;
- ret = tswap32(*(uint32_t *)p);
- p += 4;
- s->data_ptr = p;
- if (p >= s->data_end)
- s->end_transfer_func(s);
- return ret;
-}
-
-void ide_reset(IDEState *s)
-{
- s->mult_sectors = MAX_MULT_SECTORS;
- s->cur_drive = s;
- s->select = 0xa0;
- s->status = READY_STAT;
- ide_set_signature(s);
-}
-
-struct partition {
- uint8_t boot_ind; /* 0x80 - active */
- uint8_t head; /* starting head */
- uint8_t sector; /* starting sector */
- uint8_t cyl; /* starting cylinder */
- uint8_t sys_ind; /* What partition type */
- uint8_t end_head; /* end head */
- uint8_t end_sector; /* end sector */
- uint8_t end_cyl; /* end cylinder */
- uint32_t start_sect; /* starting sector counting from 0 */
- uint32_t nr_sects; /* nr of sectors in partition */
-} __attribute__((packed));
-
-/* try to guess the IDE geometry from the MSDOS partition table */
-void ide_guess_geometry(IDEState *s)
-{
- uint8_t buf[512];
- int ret, i;
- struct partition *p;
- uint32_t nr_sects;
-
- if (s->cylinders != 0)
- return;
- ret = bdrv_read(s->bs, 0, buf, 1);
- if (ret < 0)
- return;
- /* test msdos magic */
- if (buf[510] != 0x55 || buf[511] != 0xaa)
- return;
- for(i = 0; i < 4; i++) {
- p = ((struct partition *)(buf + 0x1be)) + i;
- nr_sects = tswap32(p->nr_sects);
- if (nr_sects && p->end_head) {
- /* We make the assumption that the partition terminates on
- a cylinder boundary */
- s->heads = p->end_head + 1;
- s->sectors = p->end_sector & 63;
- s->cylinders = s->nb_sectors / (s->heads * s->sectors);
-#if 0
- printf("guessed partition: CHS=%d %d %d\n",
- s->cylinders, s->heads, s->sectors);
-#endif
- }
- }
-}
-
-void ide_init(void)
-{
- IDEState *s;
- int i, cylinders, iobase, iobase2;
- int64_t nb_sectors;
- static const int ide_iobase[2] = { 0x1f0, 0x170 };
- static const int ide_iobase2[2] = { 0x3f6, 0x376 };
- static const int ide_irq[2] = { 14, 15 };
-
- for(i = 0; i < MAX_DISKS; i++) {
- s = &ide_state[i];
- s->bs = bs_table[i];
- if (s->bs) {
- bdrv_get_geometry(s->bs, &nb_sectors);
- s->nb_sectors = nb_sectors;
- ide_guess_geometry(s);
- if (s->cylinders == 0) {
- /* if no geometry, use a LBA compatible one */
- cylinders = nb_sectors / (16 * 63);
- if (cylinders > 16383)
- cylinders = 16383;
- else if (cylinders < 2)
- cylinders = 2;
- s->cylinders = cylinders;
- s->heads = 16;
- s->sectors = 63;
- }
- }
- s->irq = ide_irq[i >> 1];
- ide_reset(s);
- }
- for(i = 0; i < (MAX_DISKS / 2); i++) {
- iobase = ide_iobase[i];
- iobase2 = ide_iobase2[i];
- ide_table[iobase >> 3] = &ide_state[2 * i];
- if (ide_iobase2[i])
- ide_table[iobase2 >> 3] = &ide_state[2 * i];
- register_ioport_write(iobase, 8, ide_ioport_write, 1);
- register_ioport_read(iobase, 8, ide_ioport_read, 1);
- register_ioport_read(iobase2, 1, ide_status_read, 1);
- register_ioport_write(iobase2, 1, ide_cmd_write, 1);
-
- /* data ports */
- register_ioport_write(iobase, 2, ide_data_writew, 2);
- register_ioport_read(iobase, 2, ide_data_readw, 2);
- register_ioport_write(iobase, 4, ide_data_writel, 4);
- register_ioport_read(iobase, 4, ide_data_readl, 4);
- }
-}
-
/***********************************************************/
/* keyboard emulation */
secs = strtol(p, (char **)&p, 0);
if (*p != '\0')
goto chs_fail;
- ide_state[0].cylinders = cyls;
- ide_state[0].heads = heads;
- ide_state[0].sectors = secs;
+ ide_set_geometry(0, cyls, heads, secs);
chs_fail: ;
}
break;
break;
case 11:
hd_filename[2] = optarg;
- ide_state[2].is_cdrom = 1;
+ ide_set_cdrom(2, 1);
break;
case 12:
boot_device = optarg[0];
projects / thirdparty / qemu.git / commitdiff
