| /* |
| * 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 "vl.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 16 |
| |
| /* 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_ILLEGAL_OPCODE 0x20 |
| #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 *); |
| |
| /* NOTE: IDEState represents in fact one drive */ |
| typedef struct IDEState { |
| /* ide config */ |
| int is_cdrom; |
| int cylinders, heads, sectors; |
| int64_t nb_sectors; |
| int mult_sectors; |
| int identify_set; |
| uint16_t identify_data[256]; |
| SetIRQFunc *set_irq; |
| void *irq_opaque; |
| int irq; |
| PCIDevice *pci_dev; |
| struct BMDMAState *bmdma; |
| int drive_serial; |
| /* ide regs */ |
| uint8_t feature; |
| uint8_t error; |
| uint32_t nsector; |
| uint8_t sector; |
| uint8_t lcyl; |
| uint8_t hcyl; |
| /* other part of tf for lba48 support */ |
| uint8_t hob_feature; |
| uint8_t hob_nsector; |
| uint8_t hob_sector; |
| uint8_t hob_lcyl; |
| uint8_t hob_hcyl; |
| |
| uint8_t select; |
| uint8_t status; |
| |
| /* 0x3f6 command, only meaningful for drive 0 */ |
| uint8_t cmd; |
| /* set for lba48 access */ |
| uint8_t lba48; |
| /* 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; |
| int cd_sector_size; |
| int atapi_dma; /* true if dma is requested for the packet cmd */ |
| /* ATA DMA state */ |
| int io_buffer_size; |
| /* PIO 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]; |
| QEMUTimer *sector_write_timer; /* only used for win2k instal hack */ |
| uint32_t irq_count; /* counts IRQs when using win2k install hack */ |
| } IDEState; |
| |
| #define BM_STATUS_DMAING 0x01 |
| #define BM_STATUS_ERROR 0x02 |
| #define BM_STATUS_INT 0x04 |
| |
| #define BM_CMD_START 0x01 |
| #define BM_CMD_READ 0x08 |
| |
| #define IDE_TYPE_PIIX3 0 |
| #define IDE_TYPE_CMD646 1 |
| |
| /* CMD646 specific */ |
| #define MRDMODE 0x71 |
| #define MRDMODE_INTR_CH0 0x04 |
| #define MRDMODE_INTR_CH1 0x08 |
| #define MRDMODE_BLK_CH0 0x10 |
| #define MRDMODE_BLK_CH1 0x20 |
| #define UDIDETCR0 0x73 |
| #define UDIDETCR1 0x7B |
| |
| typedef int IDEDMAFunc(IDEState *s, |
| target_phys_addr_t phys_addr, |
| int transfer_size1); |
| |
| typedef struct BMDMAState { |
| uint8_t cmd; |
| uint8_t status; |
| uint32_t addr; |
| |
| struct PCIIDEState *pci_dev; |
| /* current transfer state */ |
| IDEState *ide_if; |
| IDEDMAFunc *dma_cb; |
| } BMDMAState; |
| |
| typedef struct PCIIDEState { |
| PCIDevice dev; |
| IDEState ide_if[4]; |
| BMDMAState bmdma[2]; |
| int type; /* see IDE_TYPE_xxx */ |
| } PCIIDEState; |
| |
| static void ide_dma_start(IDEState *s, IDEDMAFunc *dma_cb); |
| |
| 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 padstr8(uint8_t *buf, int buf_size, const char *src) |
| { |
| int i; |
| for(i = 0; i < buf_size; i++) { |
| if (*src) |
| buf[i] = *src++; |
| else |
| buf[i] = ' '; |
| } |
| } |
| |
| static void put_le16(uint16_t *p, unsigned int v) |
| { |
| *p = cpu_to_le16(v); |
| } |
| |
| static void ide_identify(IDEState *s) |
| { |
| uint16_t *p; |
| unsigned int oldsize; |
| char buf[20]; |
| |
| if (s->identify_set) { |
| memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data)); |
| return; |
| } |
| |
| memset(s->io_buffer, 0, 512); |
| p = (uint16_t *)s->io_buffer; |
| put_le16(p + 0, 0x0040); |
| put_le16(p + 1, s->cylinders); |
| put_le16(p + 3, s->heads); |
| put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */ |
| put_le16(p + 5, 512); /* XXX: retired, remove ? */ |
| put_le16(p + 6, s->sectors); |
| snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial); |
| padstr((uint8_t *)(p + 10), buf, 20); /* serial number */ |
| put_le16(p + 20, 3); /* XXX: retired, remove ? */ |
| put_le16(p + 21, 512); /* cache size in sectors */ |
| put_le16(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 |
| put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS); |
| #endif |
| put_le16(p + 48, 1); /* dword I/O */ |
| put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */ |
| put_le16(p + 51, 0x200); /* PIO transfer cycle */ |
| put_le16(p + 52, 0x200); /* DMA transfer cycle */ |
| put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */ |
| put_le16(p + 54, s->cylinders); |
| put_le16(p + 55, s->heads); |
| put_le16(p + 56, s->sectors); |
| oldsize = s->cylinders * s->heads * s->sectors; |
| put_le16(p + 57, oldsize); |
| put_le16(p + 58, oldsize >> 16); |
| if (s->mult_sectors) |
| put_le16(p + 59, 0x100 | s->mult_sectors); |
| put_le16(p + 60, s->nb_sectors); |
| put_le16(p + 61, s->nb_sectors >> 16); |
| put_le16(p + 63, 0x07); /* mdma0-2 supported */ |
| put_le16(p + 65, 120); |
| put_le16(p + 66, 120); |
| put_le16(p + 67, 120); |
| put_le16(p + 68, 120); |
| put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */ |
| put_le16(p + 81, 0x16); /* conforms to ata5 */ |
| put_le16(p + 82, (1 << 14)); |
| /* 13=flush_cache_ext,12=flush_cache,10=lba48 */ |
| put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); |
| put_le16(p + 84, (1 << 14)); |
| put_le16(p + 85, (1 << 14)); |
| /* 13=flush_cache_ext,12=flush_cache,10=lba48 */ |
| put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); |
| put_le16(p + 87, (1 << 14)); |
| put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */ |
| put_le16(p + 93, 1 | (1 << 14) | 0x2000); |
| put_le16(p + 100, s->nb_sectors); |
| put_le16(p + 101, s->nb_sectors >> 16); |
| put_le16(p + 102, s->nb_sectors >> 32); |
| put_le16(p + 103, s->nb_sectors >> 48); |
| |
| memcpy(s->identify_data, p, sizeof(s->identify_data)); |
| s->identify_set = 1; |
| } |
| |
| static void ide_atapi_identify(IDEState *s) |
| { |
| uint16_t *p; |
| char buf[20]; |
| |
| if (s->identify_set) { |
| memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data)); |
| return; |
| } |
| |
| memset(s->io_buffer, 0, 512); |
| p = (uint16_t *)s->io_buffer; |
| /* Removable CDROM, 50us response, 12 byte packets */ |
| put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0)); |
| snprintf(buf, sizeof(buf), "QM%05d", s->drive_serial); |
| padstr((uint8_t *)(p + 10), buf, 20); /* serial number */ |
| put_le16(p + 20, 3); /* buffer type */ |
| put_le16(p + 21, 512); /* cache size in sectors */ |
| put_le16(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 */ |
| put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */ |
| put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */ |
| put_le16(p + 53, 3); /* words 64-70, 54-58 valid */ |
| put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */ |
| put_le16(p + 64, 1); /* PIO modes */ |
| put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */ |
| put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */ |
| put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */ |
| put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */ |
| |
| put_le16(p + 71, 30); /* in ns */ |
| put_le16(p + 72, 30); /* in ns */ |
| |
| put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */ |
| |
| memcpy(s->identify_data, p, sizeof(s->identify_data)); |
| s->identify_set = 1; |
| } |
| |
| 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) |
| { |
| BMDMAState *bm = s->bmdma; |
| if (!(s->cmd & IDE_CMD_DISABLE_IRQ)) { |
| if (bm) { |
| bm->status |= BM_STATUS_INT; |
| } |
| s->set_irq(s->irq_opaque, 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 */ |
| if (!s->lba48) { |
| sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | |
| (s->lcyl << 8) | s->sector; |
| } else { |
| sector_num = ((int64_t)s->hob_hcyl << 40) | |
| ((int64_t) s->hob_lcyl << 32) | |
| ((int64_t) s->hob_sector << 24) | |
| ((int64_t) s->hcyl << 16) | |
| ((int64_t) 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) { |
| if (!s->lba48) { |
| s->select = (s->select & 0xf0) | (sector_num >> 24); |
| s->hcyl = (sector_num >> 16); |
| s->lcyl = (sector_num >> 8); |
| s->sector = (sector_num); |
| } else { |
| s->sector = sector_num; |
| s->lcyl = sector_num >> 8; |
| s->hcyl = sector_num >> 16; |
| s->hob_sector = sector_num >> 24; |
| s->hob_lcyl = sector_num >> 32; |
| s->hob_hcyl = sector_num >> 40; |
| } |
| } 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) & 0x0f); |
| 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; |
| s->error = 0; /* not needed by IDE spec, but needed by Windows */ |
| 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 int ide_read_dma_cb(IDEState *s, |
| target_phys_addr_t phys_addr, |
| int transfer_size1) |
| { |
| int len, transfer_size, n; |
| int64_t sector_num; |
| |
| transfer_size = transfer_size1; |
| while (transfer_size > 0) { |
| len = s->io_buffer_size - s->io_buffer_index; |
| if (len <= 0) { |
| /* transfert next data */ |
| n = s->nsector; |
| if (n == 0) |
| break; |
| if (n > MAX_MULT_SECTORS) |
| n = MAX_MULT_SECTORS; |
| sector_num = ide_get_sector(s); |
| bdrv_read(s->bs, sector_num, s->io_buffer, n); |
| s->io_buffer_index = 0; |
| s->io_buffer_size = n * 512; |
| len = s->io_buffer_size; |
| sector_num += n; |
| ide_set_sector(s, sector_num); |
| s->nsector -= n; |
| } |
| if (len > transfer_size) |
| len = transfer_size; |
| cpu_physical_memory_write(phys_addr, |
| s->io_buffer + s->io_buffer_index, len); |
| s->io_buffer_index += len; |
| transfer_size -= len; |
| phys_addr += len; |
| } |
| if (s->io_buffer_index >= s->io_buffer_size && s->nsector == 0) { |
| s->status = READY_STAT | SEEK_STAT; |
| ide_set_irq(s); |
| #ifdef DEBUG_IDE_ATAPI |
| printf("dma status=0x%x\n", s->status); |
| #endif |
| return 0; |
| } |
| return transfer_size1 - transfer_size; |
| } |
| |
| static void ide_sector_read_dma(IDEState *s) |
| { |
| s->status = READY_STAT | SEEK_STAT | DRQ_STAT; |
| s->io_buffer_index = 0; |
| s->io_buffer_size = 0; |
| ide_dma_start(s, ide_read_dma_cb); |
| } |
| |
| static void ide_sector_write_timer_cb(void *opaque) |
| { |
| IDEState *s = opaque; |
| ide_set_irq(s); |
| } |
| |
| 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); |
| |
| #ifdef TARGET_I386 |
| if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
| /* It seems there is a bug in the Windows 2000 installer HDD |
| IDE driver which fills the disk with empty logs when the |
| IDE write IRQ comes too early. This hack tries to correct |
| that at the expense of slower write performances. Use this |
| option _only_ to install Windows 2000. You must disable it |
| for normal use. */ |
| qemu_mod_timer(s->sector_write_timer, |
| qemu_get_clock(vm_clock) + (ticks_per_sec / 1000)); |
| } else |
| #endif |
| { |
| ide_set_irq(s); |
| } |
| } |
| |
| static int ide_write_dma_cb(IDEState *s, |
| target_phys_addr_t phys_addr, |
| int transfer_size1) |
| { |
| int len, transfer_size, n; |
| int64_t sector_num; |
| |
| transfer_size = transfer_size1; |
| for(;;) { |
| len = s->io_buffer_size - s->io_buffer_index; |
| if (len == 0) { |
| n = s->io_buffer_size >> 9; |
| sector_num = ide_get_sector(s); |
| bdrv_write(s->bs, sector_num, s->io_buffer, |
| s->io_buffer_size >> 9); |
| sector_num += n; |
| ide_set_sector(s, sector_num); |
| s->nsector -= n; |
| n = s->nsector; |
| if (n == 0) { |
| /* end of transfer */ |
| s->status = READY_STAT | SEEK_STAT; |
| #ifdef TARGET_I386 |
| if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
| /* It seems there is a bug in the Windows 2000 installer |
| HDD IDE driver which fills the disk with empty logs |
| when the IDE write IRQ comes too early. This hack tries |
| to correct that at the expense of slower write |
| performances. Use this option _only_ to install Windows |
| 2000. You must disable it for normal use. */ |
| qemu_mod_timer(s->sector_write_timer, |
| qemu_get_clock(vm_clock) + (ticks_per_sec / 1000)); |
| } else |
| #endif |
| ide_set_irq(s); |
| return 0; |
| } |
| if (n > MAX_MULT_SECTORS) |
| n = MAX_MULT_SECTORS; |
| s->io_buffer_index = 0; |
| s->io_buffer_size = n * 512; |
| len = s->io_buffer_size; |
| } |
| if (transfer_size <= 0) |
| break; |
| if (len > transfer_size) |
| len = transfer_size; |
| cpu_physical_memory_read(phys_addr, |
| s->io_buffer + s->io_buffer_index, len); |
| s->io_buffer_index += len; |
| transfer_size -= len; |
| phys_addr += len; |
| } |
| return transfer_size1 - transfer_size; |
| } |
| |
| static void ide_sector_write_dma(IDEState *s) |
| { |
| int n; |
| s->status = READY_STAT | SEEK_STAT | DRQ_STAT; |
| n = s->nsector; |
| if (n > MAX_MULT_SECTORS) |
| n = MAX_MULT_SECTORS; |
| s->io_buffer_index = 0; |
| s->io_buffer_size = n * 512; |
| ide_dma_start(s, ide_write_dma_cb); |
| } |
| |
| 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]; |
| } |
| |
| static void lba_to_msf(uint8_t *buf, int lba) |
| { |
| lba += 150; |
| buf[0] = (lba / 75) / 60; |
| buf[1] = (lba / 75) % 60; |
| buf[2] = lba % 75; |
| } |
| |
| static void cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf, |
| int sector_size) |
| { |
| switch(sector_size) { |
| case 2048: |
| bdrv_read(bs, (int64_t)lba << 2, buf, 4); |
| break; |
| case 2352: |
| /* sync bytes */ |
| buf[0] = 0x00; |
| memset(buf + 1, 0xff, 10); |
| buf[11] = 0x00; |
| buf += 12; |
| /* MSF */ |
| lba_to_msf(buf, lba); |
| buf[3] = 0x01; /* mode 1 data */ |
| buf += 4; |
| /* data */ |
| bdrv_read(bs, (int64_t)lba << 2, buf, 4); |
| buf += 2048; |
| /* ECC */ |
| memset(buf, 0, 288); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* 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 >= s->cd_sector_size) { |
| cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); |
| 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 = s->cd_sector_size - 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; |
| } |
| 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 > (s->cd_sector_size - s->io_buffer_index)) |
| size = (s->cd_sector_size - 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_pio(IDEState *s, int lba, int nb_sectors, |
| int sector_size) |
| { |
| s->lba = lba; |
| s->packet_transfer_size = nb_sectors * sector_size; |
| s->elementary_transfer_size = 0; |
| s->io_buffer_index = sector_size; |
| s->cd_sector_size = sector_size; |
| |
| s->status = READY_STAT; |
| ide_atapi_cmd_reply_end(s); |
| } |
| |
| /* ATAPI DMA support */ |
| static int ide_atapi_cmd_read_dma_cb(IDEState *s, |
| target_phys_addr_t phys_addr, |
| int transfer_size1) |
| { |
| int len, transfer_size; |
| |
| transfer_size = transfer_size1; |
| while (transfer_size > 0) { |
| #ifdef DEBUG_IDE_ATAPI |
| printf("transfer_size: %d phys_addr=%08x\n", transfer_size, phys_addr); |
| #endif |
| if (s->packet_transfer_size <= 0) |
| break; |
| len = s->cd_sector_size - s->io_buffer_index; |
| if (len <= 0) { |
| /* transfert next data */ |
| cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); |
| s->lba++; |
| s->io_buffer_index = 0; |
| len = s->cd_sector_size; |
| } |
| if (len > transfer_size) |
| len = transfer_size; |
| cpu_physical_memory_write(phys_addr, |
| s->io_buffer + s->io_buffer_index, len); |
| s->packet_transfer_size -= len; |
| s->io_buffer_index += len; |
| transfer_size -= len; |
| phys_addr += len; |
| } |
| if (s->packet_transfer_size <= 0) { |
| 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("dma status=0x%x\n", s->status); |
| #endif |
| return 0; |
| } |
| return transfer_size1 - transfer_size; |
| } |
| |
| /* start a CD-CDROM read command with DMA */ |
| /* XXX: test if DMA is available */ |
| static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, |
| int sector_size) |
| { |
| s->lba = lba; |
| s->packet_transfer_size = nb_sectors * sector_size; |
| s->io_buffer_index = sector_size; |
| s->cd_sector_size = sector_size; |
| |
| s->status = READY_STAT | DRQ_STAT; |
| ide_dma_start(s, ide_atapi_cmd_read_dma_cb); |
| } |
| |
| static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, |
| int sector_size) |
| { |
| #ifdef DEBUG_IDE_ATAPI |
| printf("read: LBA=%d nb_sectors=%d\n", lba, nb_sectors); |
| #endif |
| if (s->atapi_dma) { |
| ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); |
| } else { |
| ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); |
| } |
| } |
| |
| 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 (bdrv_is_inserted(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 (bdrv_is_locked(s->bs)) |
| 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 (bdrv_is_inserted(s->bs)) { |
| bdrv_set_locked(s->bs, 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 (!bdrv_is_inserted(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, 2048); |
| } |
| break; |
| case GPCMD_READ_CD: |
| { |
| int nb_sectors, lba, transfer_request; |
| |
| if (!bdrv_is_inserted(s->bs)) { |
| ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| ASC_MEDIUM_NOT_PRESENT); |
| break; |
| } |
| nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8]; |
| 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; |
| } |
| transfer_request = packet[9]; |
| switch(transfer_request & 0xf8) { |
| case 0x00: |
| /* nothing */ |
| ide_atapi_cmd_ok(s); |
| break; |
| case 0x10: |
| /* normal read */ |
| ide_atapi_cmd_read(s, lba, nb_sectors, 2048); |
| break; |
| case 0xf8: |
| /* read all data */ |
| ide_atapi_cmd_read(s, lba, nb_sectors, 2352); |
| break; |
| default: |
| ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| ASC_INV_FIELD_IN_CMD_PACKET); |
| break; |
| } |
| } |
| break; |
| case GPCMD_SEEK: |
| { |
| int lba; |
| if (!bdrv_is_inserted(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; |
| |
| if (eject && !start) { |
| /* eject the disk */ |
| bdrv_close(s->bs); |
| } |
| 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 (!bdrv_is_inserted(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->nb_sectors >> 2, 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; |
| case 2: |
| len = cdrom_read_toc_raw(s->nb_sectors >> 2, buf, msf, start_track); |
| if (len < 0) |
| goto error_cmd; |
| ide_atapi_cmd_reply(s, len, max_len); |
| break; |
| default: |
| error_cmd: |
| ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| ASC_INV_FIELD_IN_CMD_PACKET); |
| break; |
| } |
| } |
| break; |
| case GPCMD_READ_CDVD_CAPACITY: |
| if (!bdrv_is_inserted(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; |
| case GPCMD_INQUIRY: |
| max_len = packet[4]; |
| buf[0] = 0x05; /* CD-ROM */ |
| buf[1] = 0x80; /* removable */ |
| buf[2] = 0x00; /* ISO */ |
| buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ |
| buf[4] = 31; /* additionnal length */ |
| buf[5] = 0; /* reserved */ |
| buf[6] = 0; /* reserved */ |
| buf[7] = 0; /* reserved */ |
| padstr8(buf + 8, 8, "QEMU"); |
| padstr8(buf + 16, 16, "QEMU CD-ROM"); |
| padstr8(buf + 32, 4, QEMU_VERSION); |
| ide_atapi_cmd_reply(s, 36, max_len); |
| break; |
| default: |
| ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| ASC_ILLEGAL_OPCODE); |
| break; |
| } |
| } |
| |
| /* called when the inserted state of the media has changed */ |
| static void cdrom_change_cb(void *opaque) |
| { |
| IDEState *s = opaque; |
| int64_t nb_sectors; |
| |
| /* XXX: send interrupt too */ |
| bdrv_get_geometry(s->bs, &nb_sectors); |
| s->nb_sectors = nb_sectors; |
| } |
| |
| static void ide_cmd_lba48_transform(IDEState *s, int lba48) |
| { |
| s->lba48 = lba48; |
| |
| /* handle the 'magic' 0 nsector count conversion here. to avoid |
| * fiddling with the rest of the read logic, we just store the |
| * full sector count in ->nsector and ignore ->hob_nsector from now |
| */ |
| if (!s->lba48) { |
| if (!s->nsector) |
| s->nsector = 256; |
| } else { |
| if (!s->nsector && !s->hob_nsector) |
| s->nsector = 65536; |
| else { |
| int lo = s->nsector; |
| int hi = s->hob_nsector; |
| |
| s->nsector = (hi << 8) | lo; |
| } |
| } |
| } |
| |
| static void ide_clear_hob(IDEState *ide_if) |
| { |
| /* any write clears HOB high bit of device control register */ |
| ide_if[0].select &= ~(1 << 7); |
| ide_if[1].select &= ~(1 << 7); |
| } |
| |
| static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
| { |
| IDEState *ide_if = opaque; |
| IDEState *s; |
| int unit, n; |
| int lba48 = 0; |
| |
| #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: |
| ide_clear_hob(ide_if); |
| /* NOTE: data is written to the two drives */ |
| ide_if[0].hob_feature = ide_if[0].feature; |
| ide_if[1].hob_feature = ide_if[1].feature; |
| ide_if[0].feature = val; |
| ide_if[1].feature = val; |
| break; |
| case 2: |
| ide_clear_hob(ide_if); |
| ide_if[0].hob_nsector = ide_if[0].nsector; |
| ide_if[1].hob_nsector = ide_if[1].nsector; |
| ide_if[0].nsector = val; |
| ide_if[1].nsector = val; |
| break; |
| case 3: |
| ide_clear_hob(ide_if); |
| ide_if[0].hob_sector = ide_if[0].sector; |
| ide_if[1].hob_sector = ide_if[1].sector; |
| ide_if[0].sector = val; |
| ide_if[1].sector = val; |
| break; |
| case 4: |
| ide_clear_hob(ide_if); |
| ide_if[0].hob_lcyl = ide_if[0].lcyl; |
| ide_if[1].hob_lcyl = ide_if[1].lcyl; |
| ide_if[0].lcyl = val; |
| ide_if[1].lcyl = val; |
| break; |
| case 5: |
| ide_clear_hob(ide_if); |
| ide_if[0].hob_hcyl = ide_if[0].hcyl; |
| ide_if[1].hob_hcyl = ide_if[1].hcyl; |
| ide_if[0].hcyl = val; |
| ide_if[1].hcyl = val; |
| break; |
| case 6: |
| /* FIXME: HOB readback uses bit 7 */ |
| ide_if[0].select = (val & ~0x10) | 0xa0; |
| ide_if[1].select = (val | 0x10) | 0xa0; |
| /* select drive */ |
| unit = (val >> 4) & 1; |
| s = ide_if + unit; |
| ide_if->cur_drive = s; |
| break; |
| default: |
| case 7: |
| /* command */ |
| #if defined(DEBUG_IDE) |
| printf("ide: CMD=%02x\n", val); |
| #endif |
| s = ide_if->cur_drive; |
| /* ignore commands to non existant slave */ |
| if (s != ide_if && !s->bs) |
| break; |
| |
| switch(val) { |
| case WIN_IDENTIFY: |
| if (s->bs && !s->is_cdrom) { |
| ide_identify(s); |
| s->status = READY_STAT | SEEK_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->error = 0; |
| s->status = READY_STAT | SEEK_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_VERIFY_EXT: |
| lba48 = 1; |
| case WIN_VERIFY: |
| case WIN_VERIFY_ONCE: |
| /* do sector number check ? */ |
| ide_cmd_lba48_transform(s, lba48); |
| s->status = READY_STAT; |
| ide_set_irq(s); |
| break; |
| case WIN_READ_EXT: |
| lba48 = 1; |
| case WIN_READ: |
| case WIN_READ_ONCE: |
| if (!s->bs) |
| goto abort_cmd; |
| ide_cmd_lba48_transform(s, lba48); |
| s->req_nb_sectors = 1; |
| ide_sector_read(s); |
| break; |
| case WIN_WRITE_EXT: |
| lba48 = 1; |
| case WIN_WRITE: |
| case WIN_WRITE_ONCE: |
| ide_cmd_lba48_transform(s, lba48); |
| s->error = 0; |
| s->status = SEEK_STAT | READY_STAT; |
| s->req_nb_sectors = 1; |
| ide_transfer_start(s, s->io_buffer, 512, ide_sector_write); |
| break; |
| case WIN_MULTREAD_EXT: |
| lba48 = 1; |
| case WIN_MULTREAD: |
| if (!s->mult_sectors) |
| goto abort_cmd; |
| ide_cmd_lba48_transform(s, lba48); |
| s->req_nb_sectors = s->mult_sectors; |
| ide_sector_read(s); |
| break; |
| case WIN_MULTWRITE_EXT: |
| lba48 = 1; |
| case WIN_MULTWRITE: |
| if (!s->mult_sectors) |
| goto abort_cmd; |
| ide_cmd_lba48_transform(s, lba48); |
| s->error = 0; |
| s->status = SEEK_STAT | READY_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_READDMA_EXT: |
| lba48 = 1; |
| case WIN_READDMA: |
| case WIN_READDMA_ONCE: |
| if (!s->bs) |
| goto abort_cmd; |
| ide_cmd_lba48_transform(s, lba48); |
| ide_sector_read_dma(s); |
| break; |
| case WIN_WRITEDMA_EXT: |
| lba48 = 1; |
| case WIN_WRITEDMA: |
| case WIN_WRITEDMA_ONCE: |
| if (!s->bs) |
| goto abort_cmd; |
| ide_cmd_lba48_transform(s, lba48); |
| ide_sector_write_dma(s); |
| break; |
| case WIN_READ_NATIVE_MAX_EXT: |
| lba48 = 1; |
| case WIN_READ_NATIVE_MAX: |
| ide_cmd_lba48_transform(s, lba48); |
| ide_set_sector(s, s->nb_sectors - 1); |
| s->status = READY_STAT; |
| ide_set_irq(s); |
| break; |
| case WIN_CHECKPOWERMODE1: |
| s->nsector = 0xff; /* device active or idle */ |
| s->status = READY_STAT; |
| ide_set_irq(s); |
| break; |
| case WIN_SETFEATURES: |
| if (!s->bs) |
| goto abort_cmd; |
| /* XXX: valid for CDROM ? */ |
| switch(s->feature) { |
| case 0x02: /* write cache enable */ |
| case 0x82: /* write cache disable */ |
| case 0xaa: /* read look-ahead enable */ |
| case 0x55: /* read look-ahead disable */ |
| s->status = READY_STAT | SEEK_STAT; |
| ide_set_irq(s); |
| break; |
| case 0x03: { /* set transfer mode */ |
| uint8_t val = s->nsector & 0x07; |
| |
| switch (s->nsector >> 3) { |
| case 0x00: /* pio default */ |
| case 0x01: /* pio mode */ |
| put_le16(s->identify_data + 63,0x07); |
| put_le16(s->identify_data + 88,0x3f); |
| break; |
| case 0x04: /* mdma mode */ |
| put_le16(s->identify_data + 63,0x07 | (1 << (val + 8))); |
| put_le16(s->identify_data + 88,0x3f); |
| break; |
| case 0x08: /* udma mode */ |
| put_le16(s->identify_data + 63,0x07); |
| put_le16(s->identify_data + 88,0x3f | (1 << (val + 8))); |
| break; |
| default: |
| goto abort_cmd; |
| } |
| s->status = READY_STAT | SEEK_STAT; |
| ide_set_irq(s); |
| break; |
| } |
| default: |
| goto abort_cmd; |
| } |
| break; |
| case WIN_FLUSH_CACHE: |
| case WIN_FLUSH_CACHE_EXT: |
| if (s->bs) |
| bdrv_flush(s->bs); |
| s->status = READY_STAT; |
| ide_set_irq(s); |
| break; |
| case WIN_STANDBYNOW1: |
| case WIN_IDLEIMMEDIATE: |
| 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 | SEEK_STAT; |
| ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop); |
| } else { |
| ide_abort_command(s); |
| } |
| ide_set_irq(s); |
| break; |
| case WIN_DIAGNOSE: |
| ide_set_signature(s); |
| s->status = 0x00; /* NOTE: READY is _not_ set */ |
| s->error = 0x01; |
| break; |
| case WIN_SRST: |
| if (!s->is_cdrom) |
| goto abort_cmd; |
| ide_set_signature(s); |
| s->status = 0x00; /* NOTE: READY is _not_ set */ |
| s->error = 0x01; |
| break; |
| case WIN_PACKETCMD: |
| if (!s->is_cdrom) |
| goto abort_cmd; |
| /* overlapping commands not supported */ |
| if (s->feature & 0x02) |
| goto abort_cmd; |
| s->atapi_dma = s->feature & 1; |
| 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(void *opaque, uint32_t addr1) |
| { |
| IDEState *ide_if = opaque; |
| IDEState *s = ide_if->cur_drive; |
| uint32_t addr; |
| int ret, hob; |
| |
| addr = addr1 & 7; |
| /* FIXME: HOB readback uses bit 7, but it's always set right now */ |
| //hob = s->select & (1 << 7); |
| hob = 0; |
| switch(addr) { |
| case 0: |
| ret = 0xff; |
| break; |
| case 1: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else if (!hob) |
| ret = s->error; |
| else |
| ret = s->hob_feature; |
| break; |
| case 2: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else if (!hob) |
| ret = s->nsector & 0xff; |
| else |
| ret = s->hob_nsector; |
| break; |
| case 3: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else if (!hob) |
| ret = s->sector; |
| else |
| ret = s->hob_sector; |
| break; |
| case 4: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else if (!hob) |
| ret = s->lcyl; |
| else |
| ret = s->hob_lcyl; |
| break; |
| case 5: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else if (!hob) |
| ret = s->hcyl; |
| else |
| ret = s->hob_hcyl; |
| break; |
| case 6: |
| if (!ide_if[0].bs && !ide_if[1].bs) |
| ret = 0; |
| else |
| ret = s->select; |
| break; |
| default: |
| case 7: |
| if ((!ide_if[0].bs && !ide_if[1].bs) || |
| (s != ide_if && !s->bs)) |
| ret = 0; |
| else |
| ret = s->status; |
| s->set_irq(s->irq_opaque, 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(void *opaque, uint32_t addr) |
| { |
| IDEState *ide_if = opaque; |
| IDEState *s = ide_if->cur_drive; |
| int ret; |
| |
| if ((!ide_if[0].bs && !ide_if[1].bs) || |
| (s != ide_if && !s->bs)) |
| ret = 0; |
| else |
| 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(void *opaque, uint32_t addr, uint32_t val) |
| { |
| IDEState *ide_if = opaque; |
| 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]; |
| if (s->is_cdrom) |
| s->status = 0x00; /* NOTE: READY is _not_ set */ |
| else |
| s->status = READY_STAT | SEEK_STAT; |
| ide_set_signature(s); |
| } |
| } |
| |
| ide_if[0].cmd = val; |
| ide_if[1].cmd = val; |
| } |
| |
| static void ide_data_writew(void *opaque, uint32_t addr, uint32_t val) |
| { |
| IDEState *s = ((IDEState *)opaque)->cur_drive; |
| uint8_t *p; |
| |
| p = s->data_ptr; |
| *(uint16_t *)p = le16_to_cpu(val); |
| p += 2; |
| s->data_ptr = p; |
| if (p >= s->data_end) |
| s->end_transfer_func(s); |
| } |
| |
| static uint32_t ide_data_readw(void *opaque, uint32_t addr) |
| { |
| IDEState *s = ((IDEState *)opaque)->cur_drive; |
| uint8_t *p; |
| int ret; |
| p = s->data_ptr; |
| ret = cpu_to_le16(*(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(void *opaque, uint32_t addr, uint32_t val) |
| { |
| IDEState *s = ((IDEState *)opaque)->cur_drive; |
| uint8_t *p; |
| |
| p = s->data_ptr; |
| *(uint32_t *)p = le32_to_cpu(val); |
| p += 4; |
| s->data_ptr = p; |
| if (p >= s->data_end) |
| s->end_transfer_func(s); |
| } |
| |
| static uint32_t ide_data_readl(void *opaque, uint32_t addr) |
| { |
| IDEState *s = ((IDEState *)opaque)->cur_drive; |
| uint8_t *p; |
| int ret; |
| |
| p = s->data_ptr; |
| ret = cpu_to_le32(*(uint32_t *)p); |
| p += 4; |
| s->data_ptr = p; |
| if (p >= s->data_end) |
| s->end_transfer_func(s); |
| return ret; |
| } |
| |
| static void ide_dummy_transfer_stop(IDEState *s) |
| { |
| s->data_ptr = s->io_buffer; |
| s->data_end = s->io_buffer; |
| s->io_buffer[0] = 0xff; |
| s->io_buffer[1] = 0xff; |
| s->io_buffer[2] = 0xff; |
| s->io_buffer[3] = 0xff; |
| } |
| |
| 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); |
| /* init the transfer handler so that 0xffff is returned on data |
| accesses */ |
| s->end_transfer_func = ide_dummy_transfer_stop; |
| ide_dummy_transfer_stop(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 disk logical geometry from the MSDOS partition table. Return 0 if OK, -1 if could not guess */ |
| static int guess_disk_lchs(IDEState *s, |
| int *pcylinders, int *pheads, int *psectors) |
| { |
| uint8_t buf[512]; |
| int ret, i, heads, sectors, cylinders; |
| struct partition *p; |
| uint32_t nr_sects; |
| |
| ret = bdrv_read(s->bs, 0, buf, 1); |
| if (ret < 0) |
| return -1; |
| /* test msdos magic */ |
| if (buf[510] != 0x55 || buf[511] != 0xaa) |
| return -1; |
| for(i = 0; i < 4; i++) { |
| p = ((struct partition *)(buf + 0x1be)) + i; |
| nr_sects = le32_to_cpu(p->nr_sects); |
| if (nr_sects && p->end_head) { |
| /* We make the assumption that the partition terminates on |
| a cylinder boundary */ |
| heads = p->end_head + 1; |
| sectors = p->end_sector & 63; |
| if (sectors == 0) |
| continue; |
| cylinders = s->nb_sectors / (heads * sectors); |
| if (cylinders < 1 || cylinders > 16383) |
| continue; |
| *pheads = heads; |
| *psectors = sectors; |
| *pcylinders = cylinders; |
| #if 0 |
| printf("guessed geometry: LCHS=%d %d %d\n", |
| cylinders, heads, sectors); |
| #endif |
| return 0; |
| } |
| } |
| return -1; |
| } |
| |
| static void ide_init2(IDEState *ide_state, |
| BlockDriverState *hd0, BlockDriverState *hd1, |
| SetIRQFunc *set_irq, void *irq_opaque, int irq) |
| { |
| IDEState *s; |
| static int drive_serial = 1; |
| int i, cylinders, heads, secs, translation; |
| int64_t nb_sectors; |
| |
| for(i = 0; i < 2; i++) { |
| s = ide_state + i; |
| if (i == 0) |
| s->bs = hd0; |
| else |
| s->bs = hd1; |
| if (s->bs) { |
| bdrv_get_geometry(s->bs, &nb_sectors); |
| s->nb_sectors = nb_sectors; |
| /* if a geometry hint is available, use it */ |
| bdrv_get_geometry_hint(s->bs, &cylinders, &heads, &secs); |
| if (cylinders != 0) { |
| s->cylinders = cylinders; |
| s->heads = heads; |
| s->sectors = secs; |
| } else { |
| if (guess_disk_lchs(s, &cylinders, &heads, &secs) == 0) { |
| if (heads > 16) { |
| /* if heads > 16, it means that a BIOS LBA |
| translation was active, so the default |
| hardware geometry is OK */ |
| goto default_geometry; |
| } else { |
| s->cylinders = cylinders; |
| s->heads = heads; |
| s->sectors = secs; |
| /* disable any translation to be in sync with |
| the logical geometry */ |
| translation = bdrv_get_translation_hint(s->bs); |
| if (translation == BIOS_ATA_TRANSLATION_AUTO) { |
| bdrv_set_translation_hint(s->bs, |
| BIOS_ATA_TRANSLATION_NONE); |
| } |
| } |
| } else { |
| default_geometry: |
| /* if no geometry, use a standard physical disk geometry */ |
| 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; |
| } |
| bdrv_set_geometry_hint(s->bs, s->cylinders, s->heads, s->sectors); |
| } |
| if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) { |
| s->is_cdrom = 1; |
| bdrv_set_change_cb(s->bs, cdrom_change_cb, s); |
| } |
| } |
| s->drive_serial = drive_serial++; |
| s->set_irq = set_irq; |
| s->irq_opaque = irq_opaque; |
| s->irq = irq; |
| s->sector_write_timer = qemu_new_timer(vm_clock, |
| ide_sector_write_timer_cb, s); |
| ide_reset(s); |
| } |
| } |
| |
| static void ide_init_ioport(IDEState *ide_state, int iobase, int iobase2) |
| { |
| register_ioport_write(iobase, 8, 1, ide_ioport_write, ide_state); |
| register_ioport_read(iobase, 8, 1, ide_ioport_read, ide_state); |
| if (iobase2) { |
| register_ioport_read(iobase2, 1, 1, ide_status_read, ide_state); |
| register_ioport_write(iobase2, 1, 1, ide_cmd_write, ide_state); |
| } |
| |
| /* data ports */ |
| register_ioport_write(iobase, 2, 2, ide_data_writew, ide_state); |
| register_ioport_read(iobase, 2, 2, ide_data_readw, ide_state); |
| register_ioport_write(iobase, 4, 4, ide_data_writel, ide_state); |
| register_ioport_read(iobase, 4, 4, ide_data_readl, ide_state); |
| } |
| |
| /***********************************************************/ |
| /* ISA IDE definitions */ |
| |
| void isa_ide_init(int iobase, int iobase2, int irq, |
| BlockDriverState *hd0, BlockDriverState *hd1) |
| { |
| IDEState *ide_state; |
| |
| ide_state = qemu_mallocz(sizeof(IDEState) * 2); |
| if (!ide_state) |
| return; |
| |
| ide_init2(ide_state, hd0, hd1, pic_set_irq_new, isa_pic, irq); |
| ide_init_ioport(ide_state, iobase, iobase2); |
| } |
| |
| /***********************************************************/ |
| /* PCI IDE definitions */ |
| |
| static void cmd646_update_irq(PCIIDEState *d); |
| |
| static void ide_map(PCIDevice *pci_dev, int region_num, |
| uint32_t addr, uint32_t size, int type) |
| { |
| PCIIDEState *d = (PCIIDEState *)pci_dev; |
| IDEState *ide_state; |
| |
| if (region_num <= 3) { |
| ide_state = &d->ide_if[(region_num >> 1) * 2]; |
| if (region_num & 1) { |
| register_ioport_read(addr + 2, 1, 1, ide_status_read, ide_state); |
| register_ioport_write(addr + 2, 1, 1, ide_cmd_write, ide_state); |
| } else { |
| register_ioport_write(addr, 8, 1, ide_ioport_write, ide_state); |
| register_ioport_read(addr, 8, 1, ide_ioport_read, ide_state); |
| |
| /* data ports */ |
| register_ioport_write(addr, 2, 2, ide_data_writew, ide_state); |
| register_ioport_read(addr, 2, 2, ide_data_readw, ide_state); |
| register_ioport_write(addr, 4, 4, ide_data_writel, ide_state); |
| register_ioport_read(addr, 4, 4, ide_data_readl, ide_state); |
| } |
| } |
| } |
| |
| /* XXX: full callback usage to prepare non blocking I/Os support - |
| error handling */ |
| static void ide_dma_loop(BMDMAState *bm) |
| { |
| struct { |
| uint32_t addr; |
| uint32_t size; |
| } prd; |
| target_phys_addr_t cur_addr; |
| int len, i, len1; |
| |
| cur_addr = bm->addr; |
| /* at most one page to avoid hanging if erroneous parameters */ |
| for(i = 0; i < 512; i++) { |
| cpu_physical_memory_read(cur_addr, (uint8_t *)&prd, 8); |
| prd.addr = le32_to_cpu(prd.addr); |
| prd.size = le32_to_cpu(prd.size); |
| #ifdef DEBUG_IDE |
| printf("ide: dma: prd: %08x: addr=0x%08x size=0x%08x\n", |
| (int)cur_addr, prd.addr, prd.size); |
| #endif |
| len = prd.size & 0xfffe; |
| if (len == 0) |
| len = 0x10000; |
| while (len > 0) { |
| len1 = bm->dma_cb(bm->ide_if, prd.addr, len); |
| if (len1 == 0) |
| goto the_end; |
| prd.addr += len1; |
| len -= len1; |
| } |
| /* end of transfer */ |
| if (prd.size & 0x80000000) |
| break; |
| cur_addr += 8; |
| } |
| /* end of transfer */ |
| the_end: |
| bm->status &= ~BM_STATUS_DMAING; |
| bm->status |= BM_STATUS_INT; |
| bm->dma_cb = NULL; |
| bm->ide_if = NULL; |
| } |
| |
| static void ide_dma_start(IDEState *s, IDEDMAFunc *dma_cb) |
| { |
| BMDMAState *bm = s->bmdma; |
| if(!bm) |
| return; |
| bm->ide_if = s; |
| bm->dma_cb = dma_cb; |
| if (bm->status & BM_STATUS_DMAING) { |
| ide_dma_loop(bm); |
| } |
| } |
| |
| static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val) |
| { |
| BMDMAState *bm = opaque; |
| #ifdef DEBUG_IDE |
| printf("%s: 0x%08x\n", __func__, val); |
| #endif |
| if (!(val & BM_CMD_START)) { |
| /* XXX: do it better */ |
| bm->status &= ~BM_STATUS_DMAING; |
| bm->cmd = val & 0x09; |
| } else { |
| bm->status |= BM_STATUS_DMAING; |
| bm->cmd = val & 0x09; |
| /* start dma transfer if possible */ |
| if (bm->dma_cb) |
| ide_dma_loop(bm); |
| } |
| } |
| |
| static uint32_t bmdma_readb(void *opaque, uint32_t addr) |
| { |
| BMDMAState *bm = opaque; |
| PCIIDEState *pci_dev; |
| uint32_t val; |
| |
| switch(addr & 3) { |
| case 0: |
| val = bm->cmd; |
| break; |
| case 1: |
| pci_dev = bm->pci_dev; |
| if (pci_dev->type == IDE_TYPE_CMD646) { |
| val = pci_dev->dev.config[MRDMODE]; |
| } else { |
| val = 0xff; |
| } |
| break; |
| case 2: |
| val = bm->status; |
| break; |
| case 3: |
| pci_dev = bm->pci_dev; |
| if (pci_dev->type == IDE_TYPE_CMD646) { |
| if (bm == &pci_dev->bmdma[0]) |
| val = pci_dev->dev.config[UDIDETCR0]; |
| else |
| val = pci_dev->dev.config[UDIDETCR1]; |
| } else { |
| val = 0xff; |
| } |
| break; |
| default: |
| val = 0xff; |
| break; |
| } |
| #ifdef DEBUG_IDE |
| printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val); |
| #endif |
| return val; |
| } |
| |
| static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val) |
| { |
| BMDMAState *bm = opaque; |
| PCIIDEState *pci_dev; |
| #ifdef DEBUG_IDE |
| printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val); |
| #endif |
| switch(addr & 3) { |
| case 1: |
| pci_dev = bm->pci_dev; |
| if (pci_dev->type == IDE_TYPE_CMD646) { |
| pci_dev->dev.config[MRDMODE] = |
| (pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30); |
| cmd646_update_irq(pci_dev); |
| } |
| break; |
| case 2: |
| bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); |
| break; |
| case 3: |
| pci_dev = bm->pci_dev; |
| if (pci_dev->type == IDE_TYPE_CMD646) { |
| if (bm == &pci_dev->bmdma[0]) |
| pci_dev->dev.config[UDIDETCR0] = val; |
| else |
| pci_dev->dev.config[UDIDETCR1] = val; |
| } |
| break; |
| } |
| } |
| |
| static uint32_t bmdma_addr_readl(void *opaque, uint32_t addr) |
| { |
| BMDMAState *bm = opaque; |
| uint32_t val; |
| val = bm->addr; |
| #ifdef DEBUG_IDE |
| printf("%s: 0x%08x\n", __func__, val); |
| #endif |
| return val; |
| } |
| |
| static void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val) |
| { |
| BMDMAState *bm = opaque; |
| #ifdef DEBUG_IDE |
| printf("%s: 0x%08x\n", __func__, val); |
| #endif |
| bm->addr = val & ~3; |
| } |
| |
| static void bmdma_map(PCIDevice *pci_dev, int region_num, |
| uint32_t addr, uint32_t size, int type) |
| { |
| PCIIDEState *d = (PCIIDEState *)pci_dev; |
| int i; |
| |
| for(i = 0;i < 2; i++) { |
| BMDMAState *bm = &d->bmdma[i]; |
| d->ide_if[2 * i].bmdma = bm; |
| d->ide_if[2 * i + 1].bmdma = bm; |
| bm->pci_dev = (PCIIDEState *)pci_dev; |
| |
| register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm); |
| |
| register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm); |
| register_ioport_read(addr, 4, 1, bmdma_readb, bm); |
| |
| register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm); |
| register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm); |
| addr += 8; |
| } |
| } |
| |
| /* XXX: call it also when the MRDMODE is changed from the PCI config |
| registers */ |
| static void cmd646_update_irq(PCIIDEState *d) |
| { |
| int pci_level; |
| pci_level = ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH0) && |
| !(d->dev.config[MRDMODE] & MRDMODE_BLK_CH0)) || |
| ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH1) && |
| !(d->dev.config[MRDMODE] & MRDMODE_BLK_CH1)); |
| pci_set_irq((PCIDevice *)d, 0, pci_level); |
| } |
| |
| /* the PCI irq level is the logical OR of the two channels */ |
| static void cmd646_set_irq(void *opaque, int channel, int level) |
| { |
| PCIIDEState *d = opaque; |
| int irq_mask; |
| |
| irq_mask = MRDMODE_INTR_CH0 << channel; |
| if (level) |
| d->dev.config[MRDMODE] |= irq_mask; |
| else |
| d->dev.config[MRDMODE] &= ~irq_mask; |
| cmd646_update_irq(d); |
| } |
| |
| /* CMD646 PCI IDE controller */ |
| void pci_cmd646_ide_init(PCIBus *bus, BlockDriverState **hd_table, |
| int secondary_ide_enabled) |
| { |
| PCIIDEState *d; |
| uint8_t *pci_conf; |
| int i; |
| |
| d = (PCIIDEState *)pci_register_device(bus, "CMD646 IDE", |
| sizeof(PCIIDEState), |
| -1, |
| NULL, NULL); |
| d->type = IDE_TYPE_CMD646; |
| pci_conf = d->dev.config; |
| pci_conf[0x00] = 0x95; // CMD646 |
| pci_conf[0x01] = 0x10; |
| pci_conf[0x02] = 0x46; |
| pci_conf[0x03] = 0x06; |
| |
| pci_conf[0x08] = 0x07; // IDE controller revision |
| pci_conf[0x09] = 0x8f; |
| |
| pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE |
| pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage |
| pci_conf[0x0e] = 0x00; // header_type |
| |
| if (secondary_ide_enabled) { |
| /* XXX: if not enabled, really disable the seconday IDE controller */ |
| pci_conf[0x51] = 0x80; /* enable IDE1 */ |
| } |
| |
| pci_register_io_region((PCIDevice *)d, 0, 0x8, |
| PCI_ADDRESS_SPACE_IO, ide_map); |
| pci_register_io_region((PCIDevice *)d, 1, 0x4, |
| PCI_ADDRESS_SPACE_IO, ide_map); |
| pci_register_io_region((PCIDevice *)d, 2, 0x8, |
| PCI_ADDRESS_SPACE_IO, ide_map); |
| pci_register_io_region((PCIDevice *)d, 3, 0x4, |
| PCI_ADDRESS_SPACE_IO, ide_map); |
| pci_register_io_region((PCIDevice *)d, 4, 0x10, |
| PCI_ADDRESS_SPACE_IO, bmdma_map); |
| |
| pci_conf[0x3d] = 0x01; // interrupt on pin 1 |
| |
| for(i = 0; i < 4; i++) |
| d->ide_if[i].pci_dev = (PCIDevice *)d; |
| ide_init2(&d->ide_if[0], hd_table[0], hd_table[1], |
| cmd646_set_irq, d, 0); |
| ide_init2(&d->ide_if[2], hd_table[2], hd_table[3], |
| cmd646_set_irq, d, 1); |
| } |
| |
| /* hd_table must contain 4 block drivers */ |
| /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */ |
| void pci_piix3_ide_init(PCIBus *bus, BlockDriverState **hd_table, int devfn) |
| { |
| PCIIDEState *d; |
| uint8_t *pci_conf; |
| |
| /* register a function 1 of PIIX3 */ |
| d = (PCIIDEState *)pci_register_device(bus, "PIIX3 IDE", |
| sizeof(PCIIDEState), |
| devfn, |
| NULL, NULL); |
| d->type = IDE_TYPE_PIIX3; |
| |
| pci_conf = d->dev.config; |
| pci_conf[0x00] = 0x86; // Intel |
| pci_conf[0x01] = 0x80; |
| pci_conf[0x02] = 0x10; |
| pci_conf[0x03] = 0x70; |
| pci_conf[0x09] = 0x80; // legacy ATA mode |
| pci_conf[0x0a] = 0x01; // class_sub = PCI_IDE |
| pci_conf[0x0b] = 0x01; // class_base = PCI_mass_storage |
| pci_conf[0x0e] = 0x00; // header_type |
| |
| pci_register_io_region((PCIDevice *)d, 4, 0x10, |
| PCI_ADDRESS_SPACE_IO, bmdma_map); |
| |
| ide_init2(&d->ide_if[0], hd_table[0], hd_table[1], |
| pic_set_irq_new, isa_pic, 14); |
| ide_init2(&d->ide_if[2], hd_table[2], hd_table[3], |
| pic_set_irq_new, isa_pic, 15); |
| ide_init_ioport(&d->ide_if[0], 0x1f0, 0x3f6); |
| ide_init_ioport(&d->ide_if[2], 0x170, 0x376); |
| } |
| |
| /***********************************************************/ |
| /* MacIO based PowerPC IDE */ |
| |
| /* PowerMac IDE memory IO */ |
| static void pmac_ide_writeb (void *opaque, |
| target_phys_addr_t addr, uint32_t val) |
| { |
| addr = (addr & 0xFFF) >> 4; |
| switch (addr) { |
| case 1 ... 7: |
| ide_ioport_write(opaque, addr, val); |
| break; |
| case 8: |
| case 22: |
| ide_cmd_write(opaque, 0, val); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static uint32_t pmac_ide_readb (void *opaque,target_phys_addr_t addr) |
| { |
| uint8_t retval; |
| |
| addr = (addr & 0xFFF) >> 4; |
| switch (addr) { |
| case 1 ... 7: |
| retval = ide_ioport_read(opaque, addr); |
| break; |
| case 8: |
| case 22: |
| retval = ide_status_read(opaque, 0); |
| break; |
| default: |
| retval = 0xFF; |
| break; |
| } |
| return retval; |
| } |
| |
| static void pmac_ide_writew (void *opaque, |
| target_phys_addr_t addr, uint32_t val) |
| { |
| addr = (addr & 0xFFF) >> 4; |
| #ifdef TARGET_WORDS_BIGENDIAN |
| val = bswap16(val); |
| #endif |
| if (addr == 0) { |
| ide_data_writew(opaque, 0, val); |
| } |
| } |
| |
| static uint32_t pmac_ide_readw (void *opaque,target_phys_addr_t addr) |
| { |
| uint16_t retval; |
| |
| addr = (addr & 0xFFF) >> 4; |
| if (addr == 0) { |
| retval = ide_data_readw(opaque, 0); |
| } else { |
| retval = 0xFFFF; |
| } |
| #ifdef TARGET_WORDS_BIGENDIAN |
| retval = bswap16(retval); |
| #endif |
| return retval; |
| } |
| |
| static void pmac_ide_writel (void *opaque, |
| target_phys_addr_t addr, uint32_t val) |
| { |
| addr = (addr & 0xFFF) >> 4; |
| #ifdef TARGET_WORDS_BIGENDIAN |
| val = bswap32(val); |
| #endif |
| if (addr == 0) { |
| ide_data_writel(opaque, 0, val); |
| } |
| } |
| |
| static uint32_t pmac_ide_readl (void *opaque,target_phys_addr_t addr) |
| { |
| uint32_t retval; |
| |
| addr = (addr & 0xFFF) >> 4; |
| if (addr == 0) { |
| retval = ide_data_readl(opaque, 0); |
| } else { |
| retval = 0xFFFFFFFF; |
| } |
| #ifdef TARGET_WORDS_BIGENDIAN |
| retval = bswap32(retval); |
| #endif |
| return retval; |
| } |
| |
| static CPUWriteMemoryFunc *pmac_ide_write[] = { |
| pmac_ide_writeb, |
| pmac_ide_writew, |
| pmac_ide_writel, |
| }; |
| |
| static CPUReadMemoryFunc *pmac_ide_read[] = { |
| pmac_ide_readb, |
| pmac_ide_readw, |
| pmac_ide_readl, |
| }; |
| |
| /* hd_table must contain 4 block drivers */ |
| /* PowerMac uses memory mapped registers, not I/O. Return the memory |
| I/O index to access the ide. */ |
| int pmac_ide_init (BlockDriverState **hd_table, |
| SetIRQFunc *set_irq, void *irq_opaque, int irq) |
| { |
| IDEState *ide_if; |
| int pmac_ide_memory; |
| |
| ide_if = qemu_mallocz(sizeof(IDEState) * 2); |
| ide_init2(&ide_if[0], hd_table[0], hd_table[1], |
| set_irq, irq_opaque, irq); |
| |
| pmac_ide_memory = cpu_register_io_memory(0, pmac_ide_read, |
| pmac_ide_write, &ide_if[0]); |
| return pmac_ide_memory; |
| } |