diff options
Diffstat (limited to 'hw/ide.c')
| -rw-r--r-- | hw/ide.c | 2535 |
1 files changed, 0 insertions, 2535 deletions
diff --git a/hw/ide.c b/hw/ide.c deleted file mode 100644 index debbc0f..0000000 --- a/hw/ide.c +++ /dev/null @@ -1,2535 +0,0 @@ -/* - * 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; -} |