diff options
Diffstat (limited to 'hw/ide.c')
| -rw-r--r-- | hw/ide.c | 1421 |
1 files changed, 1421 insertions, 0 deletions
diff --git a/hw/ide.c b/hw/ide.c new file mode 100644 index 0000000000..96e43da5cc --- /dev/null +++ b/hw/ide.c @@ -0,0 +1,1421 @@ +/* + * 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; +} |