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-rw-r--r--qemu/hw/ide/core.c2842
1 files changed, 0 insertions, 2842 deletions
diff --git a/qemu/hw/ide/core.c b/qemu/hw/ide/core.c
deleted file mode 100644
index 41e6a2dc4..000000000
--- a/qemu/hw/ide/core.c
+++ /dev/null
@@ -1,2842 +0,0 @@
-/*
- * QEMU IDE disk and CD/DVD-ROM Emulator
- *
- * Copyright (c) 2003 Fabrice Bellard
- * Copyright (c) 2006 Openedhand Ltd.
- *
- * 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 "qemu/osdep.h"
-#include <hw/hw.h>
-#include <hw/i386/pc.h>
-#include <hw/pci/pci.h>
-#include <hw/isa/isa.h>
-#include "qemu/error-report.h"
-#include "qemu/timer.h"
-#include "sysemu/sysemu.h"
-#include "sysemu/dma.h"
-#include "hw/block/block.h"
-#include "sysemu/block-backend.h"
-#include "qemu/cutils.h"
-
-#include <hw/ide/internal.h>
-
-/* These values were based on a Seagate ST3500418AS but have been modified
- to make more sense in QEMU */
-static const int smart_attributes[][12] = {
- /* id, flags, hflags, val, wrst, raw (6 bytes), threshold */
- /* raw read error rate*/
- { 0x01, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06},
- /* spin up */
- { 0x03, 0x03, 0x00, 0x64, 0x64, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
- /* start stop count */
- { 0x04, 0x02, 0x00, 0x64, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14},
- /* remapped sectors */
- { 0x05, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24},
- /* power on hours */
- { 0x09, 0x03, 0x00, 0x64, 0x64, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
- /* power cycle count */
- { 0x0c, 0x03, 0x00, 0x64, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
- /* airflow-temperature-celsius */
- { 190, 0x03, 0x00, 0x45, 0x45, 0x1f, 0x00, 0x1f, 0x1f, 0x00, 0x00, 0x32},
-};
-
-static void ide_dummy_transfer_stop(IDEState *s);
-
-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 = ' ';
- str[i^1] = v;
- }
-}
-
-static void put_le16(uint16_t *p, unsigned int v)
-{
- *p = cpu_to_le16(v);
-}
-
-static void ide_identify_size(IDEState *s)
-{
- uint16_t *p = (uint16_t *)s->identify_data;
- put_le16(p + 60, s->nb_sectors);
- put_le16(p + 61, s->nb_sectors >> 16);
- 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);
-}
-
-static void ide_identify(IDEState *s)
-{
- uint16_t *p;
- unsigned int oldsize;
- IDEDevice *dev = s->unit ? s->bus->slave : s->bus->master;
-
- p = (uint16_t *)s->identify_data;
- if (s->identify_set) {
- goto fill_buffer;
- }
- memset(p, 0, sizeof(s->identify_data));
-
- 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);
- padstr((char *)(p + 10), s->drive_serial_str, 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((char *)(p + 23), s->version, 8); /* firmware version */
- padstr((char *)(p + 27), s->drive_model_str, 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);
- /* *(p + 60) := nb_sectors -- see ide_identify_size */
- /* *(p + 61) := nb_sectors >> 16 -- see ide_identify_size */
- put_le16(p + 62, 0x07); /* single word dma0-2 supported */
- put_le16(p + 63, 0x07); /* mdma0-2 supported */
- put_le16(p + 64, 0x03); /* pio3-4 supported */
- put_le16(p + 65, 120);
- put_le16(p + 66, 120);
- put_le16(p + 67, 120);
- put_le16(p + 68, 120);
- if (dev && dev->conf.discard_granularity) {
- put_le16(p + 69, (1 << 14)); /* determinate TRIM behavior */
- }
-
- if (s->ncq_queues) {
- put_le16(p + 75, s->ncq_queues - 1);
- /* NCQ supported */
- put_le16(p + 76, (1 << 8));
- }
-
- put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
- put_le16(p + 81, 0x16); /* conforms to ata5 */
- /* 14=NOP supported, 5=WCACHE supported, 0=SMART supported */
- put_le16(p + 82, (1 << 14) | (1 << 5) | 1);
- /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
- put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
- /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
- if (s->wwn) {
- put_le16(p + 84, (1 << 14) | (1 << 8) | 0);
- } else {
- put_le16(p + 84, (1 << 14) | 0);
- }
- /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
- if (blk_enable_write_cache(s->blk)) {
- put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
- } else {
- put_le16(p + 85, (1 << 14) | 1);
- }
- /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
- put_le16(p + 86, (1 << 13) | (1 <<12) | (1 << 10));
- /* 14=set to 1, 8=has WWN, 1=SMART self test, 0=SMART error logging */
- if (s->wwn) {
- put_le16(p + 87, (1 << 14) | (1 << 8) | 0);
- } else {
- put_le16(p + 87, (1 << 14) | 0);
- }
- put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
- put_le16(p + 93, 1 | (1 << 14) | 0x2000);
- /* *(p + 100) := nb_sectors -- see ide_identify_size */
- /* *(p + 101) := nb_sectors >> 16 -- see ide_identify_size */
- /* *(p + 102) := nb_sectors >> 32 -- see ide_identify_size */
- /* *(p + 103) := nb_sectors >> 48 -- see ide_identify_size */
-
- if (dev && dev->conf.physical_block_size)
- put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf));
- if (s->wwn) {
- /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
- put_le16(p + 108, s->wwn >> 48);
- put_le16(p + 109, s->wwn >> 32);
- put_le16(p + 110, s->wwn >> 16);
- put_le16(p + 111, s->wwn);
- }
- if (dev && dev->conf.discard_granularity) {
- put_le16(p + 169, 1); /* TRIM support */
- }
-
- ide_identify_size(s);
- s->identify_set = 1;
-
-fill_buffer:
- memcpy(s->io_buffer, p, sizeof(s->identify_data));
-}
-
-static void ide_atapi_identify(IDEState *s)
-{
- uint16_t *p;
-
- p = (uint16_t *)s->identify_data;
- if (s->identify_set) {
- goto fill_buffer;
- }
- memset(p, 0, sizeof(s->identify_data));
-
- /* Removable CDROM, 50us response, 12 byte packets */
- put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
- padstr((char *)(p + 10), s->drive_serial_str, 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((char *)(p + 23), s->version, 8); /* firmware version */
- padstr((char *)(p + 27), s->drive_model_str, 40); /* model */
- put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
-#ifdef USE_DMA_CDROM
- put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
- put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
- put_le16(p + 62, 7); /* single word dma0-2 supported */
- put_le16(p + 63, 7); /* mdma0-2 supported */
-#else
- 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 */
-#endif
- put_le16(p + 64, 3); /* pio3-4 supported */
- 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 */
-
- if (s->ncq_queues) {
- put_le16(p + 75, s->ncq_queues - 1);
- /* NCQ supported */
- put_le16(p + 76, (1 << 8));
- }
-
- put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
- if (s->wwn) {
- put_le16(p + 84, (1 << 8)); /* supports WWN for words 108-111 */
- put_le16(p + 87, (1 << 8)); /* WWN enabled */
- }
-
-#ifdef USE_DMA_CDROM
- put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
-#endif
-
- if (s->wwn) {
- /* LE 16-bit words 111-108 contain 64-bit World Wide Name */
- put_le16(p + 108, s->wwn >> 48);
- put_le16(p + 109, s->wwn >> 32);
- put_le16(p + 110, s->wwn >> 16);
- put_le16(p + 111, s->wwn);
- }
-
- s->identify_set = 1;
-
-fill_buffer:
- memcpy(s->io_buffer, p, sizeof(s->identify_data));
-}
-
-static void ide_cfata_identify_size(IDEState *s)
-{
- uint16_t *p = (uint16_t *)s->identify_data;
- put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
- put_le16(p + 8, s->nb_sectors); /* Sectors per card */
- put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
- put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
-}
-
-static void ide_cfata_identify(IDEState *s)
-{
- uint16_t *p;
- uint32_t cur_sec;
-
- p = (uint16_t *)s->identify_data;
- if (s->identify_set) {
- goto fill_buffer;
- }
- memset(p, 0, sizeof(s->identify_data));
-
- cur_sec = s->cylinders * s->heads * s->sectors;
-
- put_le16(p + 0, 0x848a); /* CF Storage Card signature */
- put_le16(p + 1, s->cylinders); /* Default cylinders */
- put_le16(p + 3, s->heads); /* Default heads */
- put_le16(p + 6, s->sectors); /* Default sectors per track */
- /* *(p + 7) := nb_sectors >> 16 -- see ide_cfata_identify_size */
- /* *(p + 8) := nb_sectors -- see ide_cfata_identify_size */
- padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
- put_le16(p + 22, 0x0004); /* ECC bytes */
- padstr((char *) (p + 23), s->version, 8); /* Firmware Revision */
- padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
-#if MAX_MULT_SECTORS > 1
- put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
-#else
- put_le16(p + 47, 0x0000);
-#endif
- put_le16(p + 49, 0x0f00); /* Capabilities */
- put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
- put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
- put_le16(p + 53, 0x0003); /* Translation params valid */
- put_le16(p + 54, s->cylinders); /* Current cylinders */
- put_le16(p + 55, s->heads); /* Current heads */
- put_le16(p + 56, s->sectors); /* Current sectors */
- put_le16(p + 57, cur_sec); /* Current capacity */
- put_le16(p + 58, cur_sec >> 16); /* Current capacity */
- if (s->mult_sectors) /* Multiple sector setting */
- put_le16(p + 59, 0x100 | s->mult_sectors);
- /* *(p + 60) := nb_sectors -- see ide_cfata_identify_size */
- /* *(p + 61) := nb_sectors >> 16 -- see ide_cfata_identify_size */
- put_le16(p + 63, 0x0203); /* Multiword DMA capability */
- put_le16(p + 64, 0x0001); /* Flow Control PIO support */
- put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
- put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
- put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
- put_le16(p + 82, 0x400c); /* Command Set supported */
- put_le16(p + 83, 0x7068); /* Command Set supported */
- put_le16(p + 84, 0x4000); /* Features supported */
- put_le16(p + 85, 0x000c); /* Command Set enabled */
- put_le16(p + 86, 0x7044); /* Command Set enabled */
- put_le16(p + 87, 0x4000); /* Features enabled */
- put_le16(p + 91, 0x4060); /* Current APM level */
- put_le16(p + 129, 0x0002); /* Current features option */
- put_le16(p + 130, 0x0005); /* Reassigned sectors */
- put_le16(p + 131, 0x0001); /* Initial power mode */
- put_le16(p + 132, 0x0000); /* User signature */
- put_le16(p + 160, 0x8100); /* Power requirement */
- put_le16(p + 161, 0x8001); /* CF command set */
-
- ide_cfata_identify_size(s);
- s->identify_set = 1;
-
-fill_buffer:
- memcpy(s->io_buffer, p, sizeof(s->identify_data));
-}
-
-static void ide_set_signature(IDEState *s)
-{
- s->select &= 0xf0; /* clear head */
- /* put signature */
- s->nsector = 1;
- s->sector = 1;
- if (s->drive_kind == IDE_CD) {
- s->lcyl = 0x14;
- s->hcyl = 0xeb;
- } else if (s->blk) {
- s->lcyl = 0;
- s->hcyl = 0;
- } else {
- s->lcyl = 0xff;
- s->hcyl = 0xff;
- }
-}
-
-typedef struct TrimAIOCB {
- BlockAIOCB common;
- BlockBackend *blk;
- QEMUBH *bh;
- int ret;
- QEMUIOVector *qiov;
- BlockAIOCB *aiocb;
- int i, j;
-} TrimAIOCB;
-
-static void trim_aio_cancel(BlockAIOCB *acb)
-{
- TrimAIOCB *iocb = container_of(acb, TrimAIOCB, common);
-
- /* Exit the loop so ide_issue_trim_cb will not continue */
- iocb->j = iocb->qiov->niov - 1;
- iocb->i = (iocb->qiov->iov[iocb->j].iov_len / 8) - 1;
-
- iocb->ret = -ECANCELED;
-
- if (iocb->aiocb) {
- blk_aio_cancel_async(iocb->aiocb);
- iocb->aiocb = NULL;
- }
-}
-
-static const AIOCBInfo trim_aiocb_info = {
- .aiocb_size = sizeof(TrimAIOCB),
- .cancel_async = trim_aio_cancel,
-};
-
-static void ide_trim_bh_cb(void *opaque)
-{
- TrimAIOCB *iocb = opaque;
-
- iocb->common.cb(iocb->common.opaque, iocb->ret);
-
- qemu_bh_delete(iocb->bh);
- iocb->bh = NULL;
- qemu_aio_unref(iocb);
-}
-
-static void ide_issue_trim_cb(void *opaque, int ret)
-{
- TrimAIOCB *iocb = opaque;
- if (ret >= 0) {
- while (iocb->j < iocb->qiov->niov) {
- int j = iocb->j;
- while (++iocb->i < iocb->qiov->iov[j].iov_len / 8) {
- int i = iocb->i;
- uint64_t *buffer = iocb->qiov->iov[j].iov_base;
-
- /* 6-byte LBA + 2-byte range per entry */
- uint64_t entry = le64_to_cpu(buffer[i]);
- uint64_t sector = entry & 0x0000ffffffffffffULL;
- uint16_t count = entry >> 48;
-
- if (count == 0) {
- continue;
- }
-
- /* Got an entry! Submit and exit. */
- iocb->aiocb = blk_aio_discard(iocb->blk, sector, count,
- ide_issue_trim_cb, opaque);
- return;
- }
-
- iocb->j++;
- iocb->i = -1;
- }
- } else {
- iocb->ret = ret;
- }
-
- iocb->aiocb = NULL;
- if (iocb->bh) {
- qemu_bh_schedule(iocb->bh);
- }
-}
-
-BlockAIOCB *ide_issue_trim(BlockBackend *blk,
- int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque)
-{
- TrimAIOCB *iocb;
-
- iocb = blk_aio_get(&trim_aiocb_info, blk, cb, opaque);
- iocb->blk = blk;
- iocb->bh = qemu_bh_new(ide_trim_bh_cb, iocb);
- iocb->ret = 0;
- iocb->qiov = qiov;
- iocb->i = -1;
- iocb->j = 0;
- ide_issue_trim_cb(iocb, 0);
- return &iocb->common;
-}
-
-void ide_abort_command(IDEState *s)
-{
- ide_transfer_stop(s);
- s->status = READY_STAT | ERR_STAT;
- s->error = ABRT_ERR;
-}
-
-/* prepare data transfer and tell what to do after */
-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;
- if (!(s->status & ERR_STAT)) {
- s->status |= DRQ_STAT;
- }
- if (s->bus->dma->ops->start_transfer) {
- s->bus->dma->ops->start_transfer(s->bus->dma);
- }
-}
-
-static void ide_cmd_done(IDEState *s)
-{
- if (s->bus->dma->ops->cmd_done) {
- s->bus->dma->ops->cmd_done(s->bus->dma);
- }
-}
-
-static void ide_transfer_halt(IDEState *s,
- void(*end_transfer_func)(IDEState *),
- bool notify)
-{
- s->end_transfer_func = end_transfer_func;
- s->data_ptr = s->io_buffer;
- s->data_end = s->io_buffer;
- s->status &= ~DRQ_STAT;
- if (notify) {
- ide_cmd_done(s);
- }
-}
-
-void ide_transfer_stop(IDEState *s)
-{
- ide_transfer_halt(s, ide_transfer_stop, true);
-}
-
-static void ide_transfer_cancel(IDEState *s)
-{
- ide_transfer_halt(s, ide_transfer_cancel, false);
-}
-
-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;
-}
-
-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_rw_error(IDEState *s) {
- ide_abort_command(s);
- ide_set_irq(s->bus);
-}
-
-static bool ide_sect_range_ok(IDEState *s,
- uint64_t sector, uint64_t nb_sectors)
-{
- uint64_t total_sectors;
-
- blk_get_geometry(s->blk, &total_sectors);
- if (sector > total_sectors || nb_sectors > total_sectors - sector) {
- return false;
- }
- return true;
-}
-
-static void ide_buffered_readv_cb(void *opaque, int ret)
-{
- IDEBufferedRequest *req = opaque;
- if (!req->orphaned) {
- if (!ret) {
- qemu_iovec_from_buf(req->original_qiov, 0, req->iov.iov_base,
- req->original_qiov->size);
- }
- req->original_cb(req->original_opaque, ret);
- }
- QLIST_REMOVE(req, list);
- qemu_vfree(req->iov.iov_base);
- g_free(req);
-}
-
-#define MAX_BUFFERED_REQS 16
-
-BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
- QEMUIOVector *iov, int nb_sectors,
- BlockCompletionFunc *cb, void *opaque)
-{
- BlockAIOCB *aioreq;
- IDEBufferedRequest *req;
- int c = 0;
-
- QLIST_FOREACH(req, &s->buffered_requests, list) {
- c++;
- }
- if (c > MAX_BUFFERED_REQS) {
- return blk_abort_aio_request(s->blk, cb, opaque, -EIO);
- }
-
- req = g_new0(IDEBufferedRequest, 1);
- req->original_qiov = iov;
- req->original_cb = cb;
- req->original_opaque = opaque;
- req->iov.iov_base = qemu_blockalign(blk_bs(s->blk), iov->size);
- req->iov.iov_len = iov->size;
- qemu_iovec_init_external(&req->qiov, &req->iov, 1);
-
- aioreq = blk_aio_readv(s->blk, sector_num, &req->qiov, nb_sectors,
- ide_buffered_readv_cb, req);
-
- QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
- return aioreq;
-}
-
-/**
- * Cancel all pending DMA requests.
- * Any buffered DMA requests are instantly canceled,
- * but any pending unbuffered DMA requests must be waited on.
- */
-void ide_cancel_dma_sync(IDEState *s)
-{
- IDEBufferedRequest *req;
-
- /* First invoke the callbacks of all buffered requests
- * and flag those requests as orphaned. Ideally there
- * are no unbuffered (Scatter Gather DMA Requests or
- * write requests) pending and we can avoid to drain. */
- QLIST_FOREACH(req, &s->buffered_requests, list) {
- if (!req->orphaned) {
-#ifdef DEBUG_IDE
- printf("%s: invoking cb %p of buffered request %p with"
- " -ECANCELED\n", __func__, req->original_cb, req);
-#endif
- req->original_cb(req->original_opaque, -ECANCELED);
- }
- req->orphaned = true;
- }
-
- /*
- * We can't cancel Scatter Gather DMA in the middle of the
- * operation or a partial (not full) DMA transfer would reach
- * the storage so we wait for completion instead (we beahve
- * like if the DMA was completed by the time the guest trying
- * to cancel dma with bmdma_cmd_writeb with BM_CMD_START not
- * set).
- *
- * In the future we'll be able to safely cancel the I/O if the
- * whole DMA operation will be submitted to disk with a single
- * aio operation with preadv/pwritev.
- */
- if (s->bus->dma->aiocb) {
-#ifdef DEBUG_IDE
- printf("%s: draining all remaining requests", __func__);
-#endif
- blk_drain(s->blk);
- assert(s->bus->dma->aiocb == NULL);
- }
-}
-
-static void ide_sector_read(IDEState *s);
-
-static void ide_sector_read_cb(void *opaque, int ret)
-{
- IDEState *s = opaque;
- int n;
-
- s->pio_aiocb = NULL;
- s->status &= ~BUSY_STAT;
-
- if (ret == -ECANCELED) {
- return;
- }
- if (ret != 0) {
- if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO |
- IDE_RETRY_READ)) {
- return;
- }
- }
-
- block_acct_done(blk_get_stats(s->blk), &s->acct);
-
- n = s->nsector;
- if (n > s->req_nb_sectors) {
- n = s->req_nb_sectors;
- }
-
- ide_set_sector(s, ide_get_sector(s) + n);
- s->nsector -= n;
- /* Allow the guest to read the io_buffer */
- ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
- ide_set_irq(s->bus);
-}
-
-static void ide_sector_read(IDEState *s)
-{
- int64_t sector_num;
- int 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) {
- ide_transfer_stop(s);
- return;
- }
-
- s->status |= BUSY_STAT;
-
- if (n > s->req_nb_sectors) {
- n = s->req_nb_sectors;
- }
-
-#if defined(DEBUG_IDE)
- printf("sector=%" PRId64 "\n", sector_num);
-#endif
-
- if (!ide_sect_range_ok(s, sector_num, n)) {
- ide_rw_error(s);
- block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ);
- return;
- }
-
- s->iov.iov_base = s->io_buffer;
- s->iov.iov_len = n * BDRV_SECTOR_SIZE;
- qemu_iovec_init_external(&s->qiov, &s->iov, 1);
-
- block_acct_start(blk_get_stats(s->blk), &s->acct,
- n * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
- s->pio_aiocb = ide_buffered_readv(s, sector_num, &s->qiov, n,
- ide_sector_read_cb, s);
-}
-
-void dma_buf_commit(IDEState *s, uint32_t tx_bytes)
-{
- if (s->bus->dma->ops->commit_buf) {
- s->bus->dma->ops->commit_buf(s->bus->dma, tx_bytes);
- }
- s->io_buffer_offset += tx_bytes;
- qemu_sglist_destroy(&s->sg);
-}
-
-void ide_set_inactive(IDEState *s, bool more)
-{
- s->bus->dma->aiocb = NULL;
- s->bus->retry_unit = -1;
- s->bus->retry_sector_num = 0;
- s->bus->retry_nsector = 0;
- if (s->bus->dma->ops->set_inactive) {
- s->bus->dma->ops->set_inactive(s->bus->dma, more);
- }
- ide_cmd_done(s);
-}
-
-void ide_dma_error(IDEState *s)
-{
- dma_buf_commit(s, 0);
- ide_abort_command(s);
- ide_set_inactive(s, false);
- ide_set_irq(s->bus);
-}
-
-int ide_handle_rw_error(IDEState *s, int error, int op)
-{
- bool is_read = (op & IDE_RETRY_READ) != 0;
- BlockErrorAction action = blk_get_error_action(s->blk, is_read, error);
-
- if (action == BLOCK_ERROR_ACTION_STOP) {
- assert(s->bus->retry_unit == s->unit);
- s->bus->error_status = op;
- } else if (action == BLOCK_ERROR_ACTION_REPORT) {
- block_acct_failed(blk_get_stats(s->blk), &s->acct);
- if (IS_IDE_RETRY_DMA(op)) {
- ide_dma_error(s);
- } else if (IS_IDE_RETRY_ATAPI(op)) {
- ide_atapi_io_error(s, -error);
- } else {
- ide_rw_error(s);
- }
- }
- blk_error_action(s->blk, action, is_read, error);
- return action != BLOCK_ERROR_ACTION_IGNORE;
-}
-
-static void ide_dma_cb(void *opaque, int ret)
-{
- IDEState *s = opaque;
- int n;
- int64_t sector_num;
- bool stay_active = false;
-
- if (ret == -ECANCELED) {
- return;
- }
- if (ret < 0) {
- if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) {
- return;
- }
- }
-
- n = s->io_buffer_size >> 9;
- if (n > s->nsector) {
- /* The PRDs were longer than needed for this request. Shorten them so
- * we don't get a negative remainder. The Active bit must remain set
- * after the request completes. */
- n = s->nsector;
- stay_active = true;
- }
-
- sector_num = ide_get_sector(s);
- if (n > 0) {
- assert(n * 512 == s->sg.size);
- dma_buf_commit(s, s->sg.size);
- sector_num += n;
- ide_set_sector(s, sector_num);
- s->nsector -= n;
- }
-
- /* end of transfer ? */
- if (s->nsector == 0) {
- s->status = READY_STAT | SEEK_STAT;
- ide_set_irq(s->bus);
- goto eot;
- }
-
- /* launch next transfer */
- n = s->nsector;
- s->io_buffer_index = 0;
- s->io_buffer_size = n * 512;
- if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->io_buffer_size) < 512) {
- /* The PRDs were too short. Reset the Active bit, but don't raise an
- * interrupt. */
- s->status = READY_STAT | SEEK_STAT;
- dma_buf_commit(s, 0);
- goto eot;
- }
-
-#ifdef DEBUG_AIO
- printf("ide_dma_cb: sector_num=%" PRId64 " n=%d, cmd_cmd=%d\n",
- sector_num, n, s->dma_cmd);
-#endif
-
- if ((s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) &&
- !ide_sect_range_ok(s, sector_num, n)) {
- ide_dma_error(s);
- block_acct_invalid(blk_get_stats(s->blk), s->acct.type);
- return;
- }
-
- switch (s->dma_cmd) {
- case IDE_DMA_READ:
- s->bus->dma->aiocb = dma_blk_read(s->blk, &s->sg, sector_num,
- ide_dma_cb, s);
- break;
- case IDE_DMA_WRITE:
- s->bus->dma->aiocb = dma_blk_write(s->blk, &s->sg, sector_num,
- ide_dma_cb, s);
- break;
- case IDE_DMA_TRIM:
- s->bus->dma->aiocb = dma_blk_io(s->blk, &s->sg, sector_num,
- ide_issue_trim, ide_dma_cb, s,
- DMA_DIRECTION_TO_DEVICE);
- break;
- default:
- abort();
- }
- return;
-
-eot:
- if (s->dma_cmd == IDE_DMA_READ || s->dma_cmd == IDE_DMA_WRITE) {
- block_acct_done(blk_get_stats(s->blk), &s->acct);
- }
- ide_set_inactive(s, stay_active);
-}
-
-static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
-{
- s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
- s->io_buffer_size = 0;
- s->dma_cmd = dma_cmd;
-
- switch (dma_cmd) {
- case IDE_DMA_READ:
- block_acct_start(blk_get_stats(s->blk), &s->acct,
- s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_READ);
- break;
- case IDE_DMA_WRITE:
- block_acct_start(blk_get_stats(s->blk), &s->acct,
- s->nsector * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
- break;
- default:
- break;
- }
-
- ide_start_dma(s, ide_dma_cb);
-}
-
-void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
-{
- s->io_buffer_index = 0;
- s->bus->retry_unit = s->unit;
- s->bus->retry_sector_num = ide_get_sector(s);
- s->bus->retry_nsector = s->nsector;
- if (s->bus->dma->ops->start_dma) {
- s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
- }
-}
-
-static void ide_sector_write(IDEState *s);
-
-static void ide_sector_write_timer_cb(void *opaque)
-{
- IDEState *s = opaque;
- ide_set_irq(s->bus);
-}
-
-static void ide_sector_write_cb(void *opaque, int ret)
-{
- IDEState *s = opaque;
- int n;
-
- if (ret == -ECANCELED) {
- return;
- }
-
- s->pio_aiocb = NULL;
- s->status &= ~BUSY_STAT;
-
- if (ret != 0) {
- if (ide_handle_rw_error(s, -ret, IDE_RETRY_PIO)) {
- return;
- }
- }
-
- block_acct_done(blk_get_stats(s->blk), &s->acct);
-
- n = s->nsector;
- if (n > s->req_nb_sectors) {
- n = s->req_nb_sectors;
- }
- s->nsector -= n;
-
- ide_set_sector(s, ide_get_sector(s) + n);
- if (s->nsector == 0) {
- /* no more sectors to write */
- ide_transfer_stop(s);
- } else {
- int n1 = s->nsector;
- if (n1 > s->req_nb_sectors) {
- n1 = s->req_nb_sectors;
- }
- ide_transfer_start(s, s->io_buffer, n1 * BDRV_SECTOR_SIZE,
- ide_sector_write);
- }
-
- 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. */
- timer_mod(s->sector_write_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
- (NANOSECONDS_PER_SECOND / 1000));
- } else {
- ide_set_irq(s->bus);
- }
-}
-
-static void ide_sector_write(IDEState *s)
-{
- int64_t sector_num;
- int n;
-
- s->status = READY_STAT | SEEK_STAT | BUSY_STAT;
- sector_num = ide_get_sector(s);
-#if defined(DEBUG_IDE)
- printf("sector=%" PRId64 "\n", sector_num);
-#endif
- n = s->nsector;
- if (n > s->req_nb_sectors) {
- n = s->req_nb_sectors;
- }
-
- if (!ide_sect_range_ok(s, sector_num, n)) {
- ide_rw_error(s);
- block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_WRITE);
- return;
- }
-
- s->iov.iov_base = s->io_buffer;
- s->iov.iov_len = n * BDRV_SECTOR_SIZE;
- qemu_iovec_init_external(&s->qiov, &s->iov, 1);
-
- block_acct_start(blk_get_stats(s->blk), &s->acct,
- n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
- s->pio_aiocb = blk_aio_writev(s->blk, sector_num, &s->qiov, n,
- ide_sector_write_cb, s);
-}
-
-static void ide_flush_cb(void *opaque, int ret)
-{
- IDEState *s = opaque;
-
- s->pio_aiocb = NULL;
-
- if (ret == -ECANCELED) {
- return;
- }
- if (ret < 0) {
- /* XXX: What sector number to set here? */
- if (ide_handle_rw_error(s, -ret, IDE_RETRY_FLUSH)) {
- return;
- }
- }
-
- if (s->blk) {
- block_acct_done(blk_get_stats(s->blk), &s->acct);
- }
- s->status = READY_STAT | SEEK_STAT;
- ide_cmd_done(s);
- ide_set_irq(s->bus);
-}
-
-static void ide_flush_cache(IDEState *s)
-{
- if (s->blk == NULL) {
- ide_flush_cb(s, 0);
- return;
- }
-
- s->status |= BUSY_STAT;
- block_acct_start(blk_get_stats(s->blk), &s->acct, 0, BLOCK_ACCT_FLUSH);
- s->pio_aiocb = blk_aio_flush(s->blk, ide_flush_cb, s);
-}
-
-static void ide_cfata_metadata_inquiry(IDEState *s)
-{
- uint16_t *p;
- uint32_t spd;
-
- p = (uint16_t *) s->io_buffer;
- memset(p, 0, 0x200);
- spd = ((s->mdata_size - 1) >> 9) + 1;
-
- put_le16(p + 0, 0x0001); /* Data format revision */
- put_le16(p + 1, 0x0000); /* Media property: silicon */
- put_le16(p + 2, s->media_changed); /* Media status */
- put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */
- put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */
- put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */
- put_le16(p + 6, spd >> 16); /* Sectors per device (high) */
-}
-
-static void ide_cfata_metadata_read(IDEState *s)
-{
- uint16_t *p;
-
- if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
- s->status = ERR_STAT;
- s->error = ABRT_ERR;
- return;
- }
-
- p = (uint16_t *) s->io_buffer;
- memset(p, 0, 0x200);
-
- put_le16(p + 0, s->media_changed); /* Media status */
- memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
- MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
- s->nsector << 9), 0x200 - 2));
-}
-
-static void ide_cfata_metadata_write(IDEState *s)
-{
- if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) {
- s->status = ERR_STAT;
- s->error = ABRT_ERR;
- return;
- }
-
- s->media_changed = 0;
-
- memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9),
- s->io_buffer + 2,
- MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9),
- s->nsector << 9), 0x200 - 2));
-}
-
-/* called when the inserted state of the media has changed */
-static void ide_cd_change_cb(void *opaque, bool load)
-{
- IDEState *s = opaque;
- uint64_t nb_sectors;
-
- s->tray_open = !load;
- blk_get_geometry(s->blk, &nb_sectors);
- s->nb_sectors = nb_sectors;
-
- /*
- * First indicate to the guest that a CD has been removed. That's
- * done on the next command the guest sends us.
- *
- * Then we set UNIT_ATTENTION, by which the guest will
- * detect a new CD in the drive. See ide_atapi_cmd() for details.
- */
- s->cdrom_changed = 1;
- s->events.new_media = true;
- s->events.eject_request = false;
- ide_set_irq(s->bus);
-}
-
-static void ide_cd_eject_request_cb(void *opaque, bool force)
-{
- IDEState *s = opaque;
-
- s->events.eject_request = true;
- if (force) {
- s->tray_locked = false;
- }
- ide_set_irq(s->bus);
-}
-
-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(IDEBus *bus)
-{
- /* any write clears HOB high bit of device control register */
- bus->ifs[0].select &= ~(1 << 7);
- bus->ifs[1].select &= ~(1 << 7);
-}
-
-void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
-{
- IDEBus *bus = opaque;
-
-#ifdef DEBUG_IDE
- printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
-#endif
-
- addr &= 7;
-
- /* ignore writes to command block while busy with previous command */
- if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT)))
- return;
-
- switch(addr) {
- case 0:
- break;
- case 1:
- ide_clear_hob(bus);
- /* NOTE: data is written to the two drives */
- bus->ifs[0].hob_feature = bus->ifs[0].feature;
- bus->ifs[1].hob_feature = bus->ifs[1].feature;
- bus->ifs[0].feature = val;
- bus->ifs[1].feature = val;
- break;
- case 2:
- ide_clear_hob(bus);
- bus->ifs[0].hob_nsector = bus->ifs[0].nsector;
- bus->ifs[1].hob_nsector = bus->ifs[1].nsector;
- bus->ifs[0].nsector = val;
- bus->ifs[1].nsector = val;
- break;
- case 3:
- ide_clear_hob(bus);
- bus->ifs[0].hob_sector = bus->ifs[0].sector;
- bus->ifs[1].hob_sector = bus->ifs[1].sector;
- bus->ifs[0].sector = val;
- bus->ifs[1].sector = val;
- break;
- case 4:
- ide_clear_hob(bus);
- bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl;
- bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl;
- bus->ifs[0].lcyl = val;
- bus->ifs[1].lcyl = val;
- break;
- case 5:
- ide_clear_hob(bus);
- bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl;
- bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl;
- bus->ifs[0].hcyl = val;
- bus->ifs[1].hcyl = val;
- break;
- case 6:
- /* FIXME: HOB readback uses bit 7 */
- bus->ifs[0].select = (val & ~0x10) | 0xa0;
- bus->ifs[1].select = (val | 0x10) | 0xa0;
- /* select drive */
- bus->unit = (val >> 4) & 1;
- break;
- default:
- case 7:
- /* command */
- ide_exec_cmd(bus, val);
- break;
- }
-}
-
-static void ide_reset(IDEState *s)
-{
-#ifdef DEBUG_IDE
- printf("ide: reset\n");
-#endif
-
- if (s->pio_aiocb) {
- blk_aio_cancel(s->pio_aiocb);
- s->pio_aiocb = NULL;
- }
-
- if (s->drive_kind == IDE_CFATA)
- s->mult_sectors = 0;
- else
- s->mult_sectors = MAX_MULT_SECTORS;
- /* ide regs */
- s->feature = 0;
- s->error = 0;
- s->nsector = 0;
- s->sector = 0;
- s->lcyl = 0;
- s->hcyl = 0;
-
- /* lba48 */
- s->hob_feature = 0;
- s->hob_sector = 0;
- s->hob_nsector = 0;
- s->hob_lcyl = 0;
- s->hob_hcyl = 0;
-
- s->select = 0xa0;
- s->status = READY_STAT | SEEK_STAT;
-
- s->lba48 = 0;
-
- /* ATAPI specific */
- s->sense_key = 0;
- s->asc = 0;
- s->cdrom_changed = 0;
- s->packet_transfer_size = 0;
- s->elementary_transfer_size = 0;
- s->io_buffer_index = 0;
- s->cd_sector_size = 0;
- s->atapi_dma = 0;
- s->tray_locked = 0;
- s->tray_open = 0;
- /* ATA DMA state */
- s->io_buffer_size = 0;
- s->req_nb_sectors = 0;
-
- 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);
- s->media_changed = 0;
-}
-
-static bool cmd_nop(IDEState *s, uint8_t cmd)
-{
- return true;
-}
-
-static bool cmd_device_reset(IDEState *s, uint8_t cmd)
-{
- /* Halt PIO (in the DRQ phase), then DMA */
- ide_transfer_cancel(s);
- ide_cancel_dma_sync(s);
-
- /* Reset any PIO commands, reset signature, etc */
- ide_reset(s);
-
- /* RESET: ATA8-ACS3 7.10.4 "Normal Outputs";
- * ATA8-ACS3 Table 184 "Device Signatures for Normal Output" */
- s->status = 0x00;
-
- /* Do not overwrite status register */
- return false;
-}
-
-static bool cmd_data_set_management(IDEState *s, uint8_t cmd)
-{
- switch (s->feature) {
- case DSM_TRIM:
- if (s->blk) {
- ide_sector_start_dma(s, IDE_DMA_TRIM);
- return false;
- }
- break;
- }
-
- ide_abort_command(s);
- return true;
-}
-
-static bool cmd_identify(IDEState *s, uint8_t cmd)
-{
- if (s->blk && s->drive_kind != IDE_CD) {
- if (s->drive_kind != IDE_CFATA) {
- ide_identify(s);
- } else {
- ide_cfata_identify(s);
- }
- s->status = READY_STAT | SEEK_STAT;
- ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
- ide_set_irq(s->bus);
- return false;
- } else {
- if (s->drive_kind == IDE_CD) {
- ide_set_signature(s);
- }
- ide_abort_command(s);
- }
-
- return true;
-}
-
-static bool cmd_verify(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_VERIFY_EXT);
-
- /* do sector number check ? */
- ide_cmd_lba48_transform(s, lba48);
-
- return true;
-}
-
-static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd)
-{
- if (s->drive_kind == IDE_CFATA && s->nsector == 0) {
- /* Disable Read and Write Multiple */
- s->mult_sectors = 0;
- } else if ((s->nsector & 0xff) != 0 &&
- ((s->nsector & 0xff) > MAX_MULT_SECTORS ||
- (s->nsector & (s->nsector - 1)) != 0)) {
- ide_abort_command(s);
- } else {
- s->mult_sectors = s->nsector & 0xff;
- }
-
- return true;
-}
-
-static bool cmd_read_multiple(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_MULTREAD_EXT);
-
- if (!s->blk || !s->mult_sectors) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
- s->req_nb_sectors = s->mult_sectors;
- ide_sector_read(s);
- return false;
-}
-
-static bool cmd_write_multiple(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_MULTWRITE_EXT);
- int n;
-
- if (!s->blk || !s->mult_sectors) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
-
- s->req_nb_sectors = s->mult_sectors;
- n = MIN(s->nsector, s->req_nb_sectors);
-
- s->status = SEEK_STAT | READY_STAT;
- ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
-
- s->media_changed = 1;
-
- return false;
-}
-
-static bool cmd_read_pio(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_READ_EXT);
-
- if (s->drive_kind == IDE_CD) {
- ide_set_signature(s); /* odd, but ATA4 8.27.5.2 requires it */
- ide_abort_command(s);
- return true;
- }
-
- if (!s->blk) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
- s->req_nb_sectors = 1;
- ide_sector_read(s);
-
- return false;
-}
-
-static bool cmd_write_pio(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_WRITE_EXT);
-
- if (!s->blk) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
-
- s->req_nb_sectors = 1;
- s->status = SEEK_STAT | READY_STAT;
- ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
-
- s->media_changed = 1;
-
- return false;
-}
-
-static bool cmd_read_dma(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_READDMA_EXT);
-
- if (!s->blk) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
- ide_sector_start_dma(s, IDE_DMA_READ);
-
- return false;
-}
-
-static bool cmd_write_dma(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_WRITEDMA_EXT);
-
- if (!s->blk) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
- ide_sector_start_dma(s, IDE_DMA_WRITE);
-
- s->media_changed = 1;
-
- return false;
-}
-
-static bool cmd_flush_cache(IDEState *s, uint8_t cmd)
-{
- ide_flush_cache(s);
- return false;
-}
-
-static bool cmd_seek(IDEState *s, uint8_t cmd)
-{
- /* XXX: Check that seek is within bounds */
- return true;
-}
-
-static bool cmd_read_native_max(IDEState *s, uint8_t cmd)
-{
- bool lba48 = (cmd == WIN_READ_NATIVE_MAX_EXT);
-
- /* Refuse if no sectors are addressable (e.g. medium not inserted) */
- if (s->nb_sectors == 0) {
- ide_abort_command(s);
- return true;
- }
-
- ide_cmd_lba48_transform(s, lba48);
- ide_set_sector(s, s->nb_sectors - 1);
-
- return true;
-}
-
-static bool cmd_check_power_mode(IDEState *s, uint8_t cmd)
-{
- s->nsector = 0xff; /* device active or idle */
- return true;
-}
-
-static bool cmd_set_features(IDEState *s, uint8_t cmd)
-{
- uint16_t *identify_data;
-
- if (!s->blk) {
- ide_abort_command(s);
- return true;
- }
-
- /* XXX: valid for CDROM ? */
- switch (s->feature) {
- case 0x02: /* write cache enable */
- blk_set_enable_write_cache(s->blk, true);
- identify_data = (uint16_t *)s->identify_data;
- put_le16(identify_data + 85, (1 << 14) | (1 << 5) | 1);
- return true;
- case 0x82: /* write cache disable */
- blk_set_enable_write_cache(s->blk, false);
- identify_data = (uint16_t *)s->identify_data;
- put_le16(identify_data + 85, (1 << 14) | 1);
- ide_flush_cache(s);
- return false;
- case 0xcc: /* reverting to power-on defaults enable */
- case 0x66: /* reverting to power-on defaults disable */
- case 0xaa: /* read look-ahead enable */
- case 0x55: /* read look-ahead disable */
- case 0x05: /* set advanced power management mode */
- case 0x85: /* disable advanced power management mode */
- case 0x69: /* NOP */
- case 0x67: /* NOP */
- case 0x96: /* NOP */
- case 0x9a: /* NOP */
- case 0x42: /* enable Automatic Acoustic Mode */
- case 0xc2: /* disable Automatic Acoustic Mode */
- return true;
- case 0x03: /* set transfer mode */
- {
- uint8_t val = s->nsector & 0x07;
- identify_data = (uint16_t *)s->identify_data;
-
- switch (s->nsector >> 3) {
- case 0x00: /* pio default */
- case 0x01: /* pio mode */
- put_le16(identify_data + 62, 0x07);
- put_le16(identify_data + 63, 0x07);
- put_le16(identify_data + 88, 0x3f);
- break;
- case 0x02: /* sigle word dma mode*/
- put_le16(identify_data + 62, 0x07 | (1 << (val + 8)));
- put_le16(identify_data + 63, 0x07);
- put_le16(identify_data + 88, 0x3f);
- break;
- case 0x04: /* mdma mode */
- put_le16(identify_data + 62, 0x07);
- put_le16(identify_data + 63, 0x07 | (1 << (val + 8)));
- put_le16(identify_data + 88, 0x3f);
- break;
- case 0x08: /* udma mode */
- put_le16(identify_data + 62, 0x07);
- put_le16(identify_data + 63, 0x07);
- put_le16(identify_data + 88, 0x3f | (1 << (val + 8)));
- break;
- default:
- goto abort_cmd;
- }
- return true;
- }
- }
-
-abort_cmd:
- ide_abort_command(s);
- return true;
-}
-
-
-/*** ATAPI commands ***/
-
-static bool cmd_identify_packet(IDEState *s, uint8_t cmd)
-{
- ide_atapi_identify(s);
- s->status = READY_STAT | SEEK_STAT;
- ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
- ide_set_irq(s->bus);
- return false;
-}
-
-static bool cmd_exec_dev_diagnostic(IDEState *s, uint8_t cmd)
-{
- ide_set_signature(s);
-
- if (s->drive_kind == IDE_CD) {
- s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
- * devices to return a clear status register
- * with READY_STAT *not* set. */
- s->error = 0x01;
- } else {
- s->status = READY_STAT | SEEK_STAT;
- /* The bits of the error register are not as usual for this command!
- * They are part of the regular output (this is why ERR_STAT isn't set)
- * Device 0 passed, Device 1 passed or not present. */
- s->error = 0x01;
- ide_set_irq(s->bus);
- }
-
- return false;
-}
-
-static bool cmd_packet(IDEState *s, uint8_t cmd)
-{
- /* overlapping commands not supported */
- if (s->feature & 0x02) {
- ide_abort_command(s);
- return true;
- }
-
- s->status = READY_STAT | SEEK_STAT;
- s->atapi_dma = s->feature & 1;
- if (s->atapi_dma) {
- s->dma_cmd = IDE_DMA_ATAPI;
- }
- s->nsector = 1;
- ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
- ide_atapi_cmd);
- return false;
-}
-
-
-/*** CF-ATA commands ***/
-
-static bool cmd_cfa_req_ext_error_code(IDEState *s, uint8_t cmd)
-{
- s->error = 0x09; /* miscellaneous error */
- s->status = READY_STAT | SEEK_STAT;
- ide_set_irq(s->bus);
-
- return false;
-}
-
-static bool cmd_cfa_erase_sectors(IDEState *s, uint8_t cmd)
-{
- /* WIN_SECURITY_FREEZE_LOCK has the same ID as CFA_WEAR_LEVEL and is
- * required for Windows 8 to work with AHCI */
-
- if (cmd == CFA_WEAR_LEVEL) {
- s->nsector = 0;
- }
-
- if (cmd == CFA_ERASE_SECTORS) {
- s->media_changed = 1;
- }
-
- return true;
-}
-
-static bool cmd_cfa_translate_sector(IDEState *s, uint8_t cmd)
-{
- s->status = READY_STAT | SEEK_STAT;
-
- memset(s->io_buffer, 0, 0x200);
- s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */
- s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */
- s->io_buffer[0x02] = s->select; /* Head */
- s->io_buffer[0x03] = s->sector; /* Sector */
- s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */
- s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */
- s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */
- s->io_buffer[0x13] = 0x00; /* Erase flag */
- s->io_buffer[0x18] = 0x00; /* Hot count */
- s->io_buffer[0x19] = 0x00; /* Hot count */
- s->io_buffer[0x1a] = 0x01; /* Hot count */
-
- ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
- ide_set_irq(s->bus);
-
- return false;
-}
-
-static bool cmd_cfa_access_metadata_storage(IDEState *s, uint8_t cmd)
-{
- switch (s->feature) {
- case 0x02: /* Inquiry Metadata Storage */
- ide_cfata_metadata_inquiry(s);
- break;
- case 0x03: /* Read Metadata Storage */
- ide_cfata_metadata_read(s);
- break;
- case 0x04: /* Write Metadata Storage */
- ide_cfata_metadata_write(s);
- break;
- default:
- ide_abort_command(s);
- return true;
- }
-
- ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
- s->status = 0x00; /* NOTE: READY is _not_ set */
- ide_set_irq(s->bus);
-
- return false;
-}
-
-static bool cmd_ibm_sense_condition(IDEState *s, uint8_t cmd)
-{
- switch (s->feature) {
- case 0x01: /* sense temperature in device */
- s->nsector = 0x50; /* +20 C */
- break;
- default:
- ide_abort_command(s);
- return true;
- }
-
- return true;
-}
-
-
-/*** SMART commands ***/
-
-static bool cmd_smart(IDEState *s, uint8_t cmd)
-{
- int n;
-
- if (s->hcyl != 0xc2 || s->lcyl != 0x4f) {
- goto abort_cmd;
- }
-
- if (!s->smart_enabled && s->feature != SMART_ENABLE) {
- goto abort_cmd;
- }
-
- switch (s->feature) {
- case SMART_DISABLE:
- s->smart_enabled = 0;
- return true;
-
- case SMART_ENABLE:
- s->smart_enabled = 1;
- return true;
-
- case SMART_ATTR_AUTOSAVE:
- switch (s->sector) {
- case 0x00:
- s->smart_autosave = 0;
- break;
- case 0xf1:
- s->smart_autosave = 1;
- break;
- default:
- goto abort_cmd;
- }
- return true;
-
- case SMART_STATUS:
- if (!s->smart_errors) {
- s->hcyl = 0xc2;
- s->lcyl = 0x4f;
- } else {
- s->hcyl = 0x2c;
- s->lcyl = 0xf4;
- }
- return true;
-
- case SMART_READ_THRESH:
- memset(s->io_buffer, 0, 0x200);
- s->io_buffer[0] = 0x01; /* smart struct version */
-
- for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
- s->io_buffer[2 + 0 + (n * 12)] = smart_attributes[n][0];
- s->io_buffer[2 + 1 + (n * 12)] = smart_attributes[n][11];
- }
-
- /* checksum */
- for (n = 0; n < 511; n++) {
- s->io_buffer[511] += s->io_buffer[n];
- }
- s->io_buffer[511] = 0x100 - s->io_buffer[511];
-
- s->status = READY_STAT | SEEK_STAT;
- ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
- ide_set_irq(s->bus);
- return false;
-
- case SMART_READ_DATA:
- memset(s->io_buffer, 0, 0x200);
- s->io_buffer[0] = 0x01; /* smart struct version */
-
- for (n = 0; n < ARRAY_SIZE(smart_attributes); n++) {
- int i;
- for (i = 0; i < 11; i++) {
- s->io_buffer[2 + i + (n * 12)] = smart_attributes[n][i];
- }
- }
-
- s->io_buffer[362] = 0x02 | (s->smart_autosave ? 0x80 : 0x00);
- if (s->smart_selftest_count == 0) {
- s->io_buffer[363] = 0;
- } else {
- s->io_buffer[363] =
- s->smart_selftest_data[3 +
- (s->smart_selftest_count - 1) *
- 24];
- }
- s->io_buffer[364] = 0x20;
- s->io_buffer[365] = 0x01;
- /* offline data collection capacity: execute + self-test*/
- s->io_buffer[367] = (1 << 4 | 1 << 3 | 1);
- s->io_buffer[368] = 0x03; /* smart capability (1) */
- s->io_buffer[369] = 0x00; /* smart capability (2) */
- s->io_buffer[370] = 0x01; /* error logging supported */
- s->io_buffer[372] = 0x02; /* minutes for poll short test */
- s->io_buffer[373] = 0x36; /* minutes for poll ext test */
- s->io_buffer[374] = 0x01; /* minutes for poll conveyance */
-
- for (n = 0; n < 511; n++) {
- s->io_buffer[511] += s->io_buffer[n];
- }
- s->io_buffer[511] = 0x100 - s->io_buffer[511];
-
- s->status = READY_STAT | SEEK_STAT;
- ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
- ide_set_irq(s->bus);
- return false;
-
- case SMART_READ_LOG:
- switch (s->sector) {
- case 0x01: /* summary smart error log */
- memset(s->io_buffer, 0, 0x200);
- s->io_buffer[0] = 0x01;
- s->io_buffer[1] = 0x00; /* no error entries */
- s->io_buffer[452] = s->smart_errors & 0xff;
- s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8;
-
- for (n = 0; n < 511; n++) {
- s->io_buffer[511] += s->io_buffer[n];
- }
- s->io_buffer[511] = 0x100 - s->io_buffer[511];
- break;
- case 0x06: /* smart self test log */
- memset(s->io_buffer, 0, 0x200);
- s->io_buffer[0] = 0x01;
- if (s->smart_selftest_count == 0) {
- s->io_buffer[508] = 0;
- } else {
- s->io_buffer[508] = s->smart_selftest_count;
- for (n = 2; n < 506; n++) {
- s->io_buffer[n] = s->smart_selftest_data[n];
- }
- }
-
- for (n = 0; n < 511; n++) {
- s->io_buffer[511] += s->io_buffer[n];
- }
- s->io_buffer[511] = 0x100 - s->io_buffer[511];
- break;
- default:
- goto abort_cmd;
- }
- s->status = READY_STAT | SEEK_STAT;
- ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
- ide_set_irq(s->bus);
- return false;
-
- case SMART_EXECUTE_OFFLINE:
- switch (s->sector) {
- case 0: /* off-line routine */
- case 1: /* short self test */
- case 2: /* extended self test */
- s->smart_selftest_count++;
- if (s->smart_selftest_count > 21) {
- s->smart_selftest_count = 1;
- }
- n = 2 + (s->smart_selftest_count - 1) * 24;
- s->smart_selftest_data[n] = s->sector;
- s->smart_selftest_data[n + 1] = 0x00; /* OK and finished */
- s->smart_selftest_data[n + 2] = 0x34; /* hour count lsb */
- s->smart_selftest_data[n + 3] = 0x12; /* hour count msb */
- break;
- default:
- goto abort_cmd;
- }
- return true;
- }
-
-abort_cmd:
- ide_abort_command(s);
- return true;
-}
-
-#define HD_OK (1u << IDE_HD)
-#define CD_OK (1u << IDE_CD)
-#define CFA_OK (1u << IDE_CFATA)
-#define HD_CFA_OK (HD_OK | CFA_OK)
-#define ALL_OK (HD_OK | CD_OK | CFA_OK)
-
-/* Set the Disk Seek Completed status bit during completion */
-#define SET_DSC (1u << 8)
-
-/* See ACS-2 T13/2015-D Table B.2 Command codes */
-static const struct {
- /* Returns true if the completion code should be run */
- bool (*handler)(IDEState *s, uint8_t cmd);
- int flags;
-} ide_cmd_table[0x100] = {
- /* NOP not implemented, mandatory for CD */
- [CFA_REQ_EXT_ERROR_CODE] = { cmd_cfa_req_ext_error_code, CFA_OK },
- [WIN_DSM] = { cmd_data_set_management, HD_CFA_OK },
- [WIN_DEVICE_RESET] = { cmd_device_reset, CD_OK },
- [WIN_RECAL] = { cmd_nop, HD_CFA_OK | SET_DSC},
- [WIN_READ] = { cmd_read_pio, ALL_OK },
- [WIN_READ_ONCE] = { cmd_read_pio, HD_CFA_OK },
- [WIN_READ_EXT] = { cmd_read_pio, HD_CFA_OK },
- [WIN_READDMA_EXT] = { cmd_read_dma, HD_CFA_OK },
- [WIN_READ_NATIVE_MAX_EXT] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
- [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK },
- [WIN_WRITE] = { cmd_write_pio, HD_CFA_OK },
- [WIN_WRITE_ONCE] = { cmd_write_pio, HD_CFA_OK },
- [WIN_WRITE_EXT] = { cmd_write_pio, HD_CFA_OK },
- [WIN_WRITEDMA_EXT] = { cmd_write_dma, HD_CFA_OK },
- [CFA_WRITE_SECT_WO_ERASE] = { cmd_write_pio, CFA_OK },
- [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK },
- [WIN_WRITE_VERIFY] = { cmd_write_pio, HD_CFA_OK },
- [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC },
- [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC },
- [WIN_VERIFY_EXT] = { cmd_verify, HD_CFA_OK | SET_DSC },
- [WIN_SEEK] = { cmd_seek, HD_CFA_OK | SET_DSC },
- [CFA_TRANSLATE_SECTOR] = { cmd_cfa_translate_sector, CFA_OK },
- [WIN_DIAGNOSE] = { cmd_exec_dev_diagnostic, ALL_OK },
- [WIN_SPECIFY] = { cmd_nop, HD_CFA_OK | SET_DSC },
- [WIN_STANDBYNOW2] = { cmd_nop, HD_CFA_OK },
- [WIN_IDLEIMMEDIATE2] = { cmd_nop, HD_CFA_OK },
- [WIN_STANDBY2] = { cmd_nop, HD_CFA_OK },
- [WIN_SETIDLE2] = { cmd_nop, HD_CFA_OK },
- [WIN_CHECKPOWERMODE2] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
- [WIN_SLEEPNOW2] = { cmd_nop, HD_CFA_OK },
- [WIN_PACKETCMD] = { cmd_packet, CD_OK },
- [WIN_PIDENTIFY] = { cmd_identify_packet, CD_OK },
- [WIN_SMART] = { cmd_smart, HD_CFA_OK | SET_DSC },
- [CFA_ACCESS_METADATA_STORAGE] = { cmd_cfa_access_metadata_storage, CFA_OK },
- [CFA_ERASE_SECTORS] = { cmd_cfa_erase_sectors, CFA_OK | SET_DSC },
- [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK },
- [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK },
- [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC },
- [WIN_READDMA] = { cmd_read_dma, HD_CFA_OK },
- [WIN_READDMA_ONCE] = { cmd_read_dma, HD_CFA_OK },
- [WIN_WRITEDMA] = { cmd_write_dma, HD_CFA_OK },
- [WIN_WRITEDMA_ONCE] = { cmd_write_dma, HD_CFA_OK },
- [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK },
- [WIN_STANDBYNOW1] = { cmd_nop, HD_CFA_OK },
- [WIN_IDLEIMMEDIATE] = { cmd_nop, HD_CFA_OK },
- [WIN_STANDBY] = { cmd_nop, HD_CFA_OK },
- [WIN_SETIDLE1] = { cmd_nop, HD_CFA_OK },
- [WIN_CHECKPOWERMODE1] = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
- [WIN_SLEEPNOW1] = { cmd_nop, HD_CFA_OK },
- [WIN_FLUSH_CACHE] = { cmd_flush_cache, ALL_OK },
- [WIN_FLUSH_CACHE_EXT] = { cmd_flush_cache, HD_CFA_OK },
- [WIN_IDENTIFY] = { cmd_identify, ALL_OK },
- [WIN_SETFEATURES] = { cmd_set_features, ALL_OK | SET_DSC },
- [IBM_SENSE_CONDITION] = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
- [CFA_WEAR_LEVEL] = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
- [WIN_READ_NATIVE_MAX] = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
-};
-
-static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
-{
- return cmd < ARRAY_SIZE(ide_cmd_table)
- && (ide_cmd_table[cmd].flags & (1u << s->drive_kind));
-}
-
-void ide_exec_cmd(IDEBus *bus, uint32_t val)
-{
- IDEState *s;
- bool complete;
-
-#if defined(DEBUG_IDE)
- printf("ide: CMD=%02x\n", val);
-#endif
- s = idebus_active_if(bus);
- /* ignore commands to non existent slave */
- if (s != bus->ifs && !s->blk) {
- return;
- }
-
- /* Only RESET is allowed while BSY and/or DRQ are set,
- * and only to ATAPI devices. */
- if (s->status & (BUSY_STAT|DRQ_STAT)) {
- if (val != WIN_DEVICE_RESET || s->drive_kind != IDE_CD) {
- return;
- }
- }
-
- if (!ide_cmd_permitted(s, val)) {
- ide_abort_command(s);
- ide_set_irq(s->bus);
- return;
- }
-
- s->status = READY_STAT | BUSY_STAT;
- s->error = 0;
- s->io_buffer_offset = 0;
-
- complete = ide_cmd_table[val].handler(s, val);
- if (complete) {
- s->status &= ~BUSY_STAT;
- assert(!!s->error == !!(s->status & ERR_STAT));
-
- if ((ide_cmd_table[val].flags & SET_DSC) && !s->error) {
- s->status |= SEEK_STAT;
- }
-
- ide_cmd_done(s);
- ide_set_irq(s->bus);
- }
-}
-
-uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- 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 ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
- (s != bus->ifs && !s->blk)) {
- ret = 0;
- } else if (!hob) {
- ret = s->error;
- } else {
- ret = s->hob_feature;
- }
- break;
- case 2:
- if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
- ret = 0;
- } else if (!hob) {
- ret = s->nsector & 0xff;
- } else {
- ret = s->hob_nsector;
- }
- break;
- case 3:
- if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
- ret = 0;
- } else if (!hob) {
- ret = s->sector;
- } else {
- ret = s->hob_sector;
- }
- break;
- case 4:
- if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
- ret = 0;
- } else if (!hob) {
- ret = s->lcyl;
- } else {
- ret = s->hob_lcyl;
- }
- break;
- case 5:
- if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
- ret = 0;
- } else if (!hob) {
- ret = s->hcyl;
- } else {
- ret = s->hob_hcyl;
- }
- break;
- case 6:
- if (!bus->ifs[0].blk && !bus->ifs[1].blk) {
- ret = 0;
- } else {
- ret = s->select;
- }
- break;
- default:
- case 7:
- if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
- (s != bus->ifs && !s->blk)) {
- ret = 0;
- } else {
- ret = s->status;
- }
- qemu_irq_lower(bus->irq);
- break;
- }
-#ifdef DEBUG_IDE
- printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
-#endif
- return ret;
-}
-
-uint32_t ide_status_read(void *opaque, uint32_t addr)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- int ret;
-
- if ((!bus->ifs[0].blk && !bus->ifs[1].blk) ||
- (s != bus->ifs && !s->blk)) {
- ret = 0;
- } else {
- ret = s->status;
- }
-#ifdef DEBUG_IDE
- printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
-#endif
- return ret;
-}
-
-void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val)
-{
- IDEBus *bus = 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 (!(bus->cmd & IDE_CMD_RESET) &&
- (val & IDE_CMD_RESET)) {
- /* reset low to high */
- for(i = 0;i < 2; i++) {
- s = &bus->ifs[i];
- s->status = BUSY_STAT | SEEK_STAT;
- s->error = 0x01;
- }
- } else if ((bus->cmd & IDE_CMD_RESET) &&
- !(val & IDE_CMD_RESET)) {
- /* high to low */
- for(i = 0;i < 2; i++) {
- s = &bus->ifs[i];
- if (s->drive_kind == IDE_CD)
- s->status = 0x00; /* NOTE: READY is _not_ set */
- else
- s->status = READY_STAT | SEEK_STAT;
- ide_set_signature(s);
- }
- }
-
- bus->cmd = val;
-}
-
-/*
- * Returns true if the running PIO transfer is a PIO out (i.e. data is
- * transferred from the device to the guest), false if it's a PIO in
- */
-static bool ide_is_pio_out(IDEState *s)
-{
- if (s->end_transfer_func == ide_sector_write ||
- s->end_transfer_func == ide_atapi_cmd) {
- return false;
- } else if (s->end_transfer_func == ide_sector_read ||
- s->end_transfer_func == ide_transfer_stop ||
- s->end_transfer_func == ide_atapi_cmd_reply_end ||
- s->end_transfer_func == ide_dummy_transfer_stop) {
- return true;
- }
-
- abort();
-}
-
-void ide_data_writew(void *opaque, uint32_t addr, uint32_t val)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- uint8_t *p;
-
- /* PIO data access allowed only when DRQ bit is set. The result of a write
- * during PIO out is indeterminate, just ignore it. */
- if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
- return;
- }
-
- p = s->data_ptr;
- if (p + 2 > s->data_end) {
- return;
- }
-
- *(uint16_t *)p = le16_to_cpu(val);
- p += 2;
- s->data_ptr = p;
- if (p >= s->data_end) {
- s->status &= ~DRQ_STAT;
- s->end_transfer_func(s);
- }
-}
-
-uint32_t ide_data_readw(void *opaque, uint32_t addr)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- uint8_t *p;
- int ret;
-
- /* PIO data access allowed only when DRQ bit is set. The result of a read
- * during PIO in is indeterminate, return 0 and don't move forward. */
- if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
- return 0;
- }
-
- p = s->data_ptr;
- if (p + 2 > s->data_end) {
- return 0;
- }
-
- ret = cpu_to_le16(*(uint16_t *)p);
- p += 2;
- s->data_ptr = p;
- if (p >= s->data_end) {
- s->status &= ~DRQ_STAT;
- s->end_transfer_func(s);
- }
- return ret;
-}
-
-void ide_data_writel(void *opaque, uint32_t addr, uint32_t val)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- uint8_t *p;
-
- /* PIO data access allowed only when DRQ bit is set. The result of a write
- * during PIO out is indeterminate, just ignore it. */
- if (!(s->status & DRQ_STAT) || ide_is_pio_out(s)) {
- return;
- }
-
- p = s->data_ptr;
- if (p + 4 > s->data_end) {
- return;
- }
-
- *(uint32_t *)p = le32_to_cpu(val);
- p += 4;
- s->data_ptr = p;
- if (p >= s->data_end) {
- s->status &= ~DRQ_STAT;
- s->end_transfer_func(s);
- }
-}
-
-uint32_t ide_data_readl(void *opaque, uint32_t addr)
-{
- IDEBus *bus = opaque;
- IDEState *s = idebus_active_if(bus);
- uint8_t *p;
- int ret;
-
- /* PIO data access allowed only when DRQ bit is set. The result of a read
- * during PIO in is indeterminate, return 0 and don't move forward. */
- if (!(s->status & DRQ_STAT) || !ide_is_pio_out(s)) {
- return 0;
- }
-
- p = s->data_ptr;
- if (p + 4 > s->data_end) {
- return 0;
- }
-
- ret = cpu_to_le32(*(uint32_t *)p);
- p += 4;
- s->data_ptr = p;
- if (p >= s->data_end) {
- s->status &= ~DRQ_STAT;
- 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;
-}
-
-void ide_bus_reset(IDEBus *bus)
-{
- bus->unit = 0;
- bus->cmd = 0;
- ide_reset(&bus->ifs[0]);
- ide_reset(&bus->ifs[1]);
- ide_clear_hob(bus);
-
- /* pending async DMA */
- if (bus->dma->aiocb) {
-#ifdef DEBUG_AIO
- printf("aio_cancel\n");
-#endif
- blk_aio_cancel(bus->dma->aiocb);
- bus->dma->aiocb = NULL;
- }
-
- /* reset dma provider too */
- if (bus->dma->ops->reset) {
- bus->dma->ops->reset(bus->dma);
- }
-}
-
-static bool ide_cd_is_tray_open(void *opaque)
-{
- return ((IDEState *)opaque)->tray_open;
-}
-
-static bool ide_cd_is_medium_locked(void *opaque)
-{
- return ((IDEState *)opaque)->tray_locked;
-}
-
-static void ide_resize_cb(void *opaque)
-{
- IDEState *s = opaque;
- uint64_t nb_sectors;
-
- if (!s->identify_set) {
- return;
- }
-
- blk_get_geometry(s->blk, &nb_sectors);
- s->nb_sectors = nb_sectors;
-
- /* Update the identify data buffer. */
- if (s->drive_kind == IDE_CFATA) {
- ide_cfata_identify_size(s);
- } else {
- /* IDE_CD uses a different set of callbacks entirely. */
- assert(s->drive_kind != IDE_CD);
- ide_identify_size(s);
- }
-}
-
-static const BlockDevOps ide_cd_block_ops = {
- .change_media_cb = ide_cd_change_cb,
- .eject_request_cb = ide_cd_eject_request_cb,
- .is_tray_open = ide_cd_is_tray_open,
- .is_medium_locked = ide_cd_is_medium_locked,
-};
-
-static const BlockDevOps ide_hd_block_ops = {
- .resize_cb = ide_resize_cb,
-};
-
-int ide_init_drive(IDEState *s, BlockBackend *blk, IDEDriveKind kind,
- const char *version, const char *serial, const char *model,
- uint64_t wwn,
- uint32_t cylinders, uint32_t heads, uint32_t secs,
- int chs_trans)
-{
- uint64_t nb_sectors;
-
- s->blk = blk;
- s->drive_kind = kind;
-
- blk_get_geometry(blk, &nb_sectors);
- s->cylinders = cylinders;
- s->heads = heads;
- s->sectors = secs;
- s->chs_trans = chs_trans;
- s->nb_sectors = nb_sectors;
- s->wwn = wwn;
- /* The SMART values should be preserved across power cycles
- but they aren't. */
- s->smart_enabled = 1;
- s->smart_autosave = 1;
- s->smart_errors = 0;
- s->smart_selftest_count = 0;
- if (kind == IDE_CD) {
- blk_set_dev_ops(blk, &ide_cd_block_ops, s);
- blk_set_guest_block_size(blk, 2048);
- } else {
- if (!blk_is_inserted(s->blk)) {
- error_report("Device needs media, but drive is empty");
- return -1;
- }
- if (blk_is_read_only(blk)) {
- error_report("Can't use a read-only drive");
- return -1;
- }
- blk_set_dev_ops(blk, &ide_hd_block_ops, s);
- }
- if (serial) {
- pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
- } else {
- snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
- "QM%05d", s->drive_serial);
- }
- if (model) {
- pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
- } else {
- switch (kind) {
- case IDE_CD:
- strcpy(s->drive_model_str, "QEMU DVD-ROM");
- break;
- case IDE_CFATA:
- strcpy(s->drive_model_str, "QEMU MICRODRIVE");
- break;
- default:
- strcpy(s->drive_model_str, "QEMU HARDDISK");
- break;
- }
- }
-
- if (version) {
- pstrcpy(s->version, sizeof(s->version), version);
- } else {
- pstrcpy(s->version, sizeof(s->version), qemu_hw_version());
- }
-
- ide_reset(s);
- blk_iostatus_enable(blk);
- return 0;
-}
-
-static void ide_init1(IDEBus *bus, int unit)
-{
- static int drive_serial = 1;
- IDEState *s = &bus->ifs[unit];
-
- s->bus = bus;
- s->unit = unit;
- s->drive_serial = drive_serial++;
- /* we need at least 2k alignment for accessing CDROMs using O_DIRECT */
- s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4;
- s->io_buffer = qemu_memalign(2048, s->io_buffer_total_len);
- memset(s->io_buffer, 0, s->io_buffer_total_len);
-
- s->smart_selftest_data = blk_blockalign(s->blk, 512);
- memset(s->smart_selftest_data, 0, 512);
-
- s->sector_write_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
- ide_sector_write_timer_cb, s);
-}
-
-static int ide_nop_int(IDEDMA *dma, int x)
-{
- return 0;
-}
-
-static void ide_nop(IDEDMA *dma)
-{
-}
-
-static int32_t ide_nop_int32(IDEDMA *dma, int32_t l)
-{
- return 0;
-}
-
-static const IDEDMAOps ide_dma_nop_ops = {
- .prepare_buf = ide_nop_int32,
- .restart_dma = ide_nop,
- .rw_buf = ide_nop_int,
-};
-
-static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
-{
- s->unit = s->bus->retry_unit;
- ide_set_sector(s, s->bus->retry_sector_num);
- s->nsector = s->bus->retry_nsector;
- s->bus->dma->ops->restart_dma(s->bus->dma);
- s->io_buffer_size = 0;
- s->dma_cmd = dma_cmd;
- ide_start_dma(s, ide_dma_cb);
-}
-
-static void ide_restart_bh(void *opaque)
-{
- IDEBus *bus = opaque;
- IDEState *s;
- bool is_read;
- int error_status;
-
- qemu_bh_delete(bus->bh);
- bus->bh = NULL;
-
- error_status = bus->error_status;
- if (bus->error_status == 0) {
- return;
- }
-
- s = idebus_active_if(bus);
- is_read = (bus->error_status & IDE_RETRY_READ) != 0;
-
- /* The error status must be cleared before resubmitting the request: The
- * request may fail again, and this case can only be distinguished if the
- * called function can set a new error status. */
- bus->error_status = 0;
-
- /* The HBA has generically asked to be kicked on retry */
- if (error_status & IDE_RETRY_HBA) {
- if (s->bus->dma->ops->restart) {
- s->bus->dma->ops->restart(s->bus->dma);
- }
- } else if (IS_IDE_RETRY_DMA(error_status)) {
- if (error_status & IDE_RETRY_TRIM) {
- ide_restart_dma(s, IDE_DMA_TRIM);
- } else {
- ide_restart_dma(s, is_read ? IDE_DMA_READ : IDE_DMA_WRITE);
- }
- } else if (IS_IDE_RETRY_PIO(error_status)) {
- if (is_read) {
- ide_sector_read(s);
- } else {
- ide_sector_write(s);
- }
- } else if (error_status & IDE_RETRY_FLUSH) {
- ide_flush_cache(s);
- } else if (IS_IDE_RETRY_ATAPI(error_status)) {
- assert(s->end_transfer_func == ide_atapi_cmd);
- ide_atapi_dma_restart(s);
- } else {
- abort();
- }
-}
-
-static void ide_restart_cb(void *opaque, int running, RunState state)
-{
- IDEBus *bus = opaque;
-
- if (!running)
- return;
-
- if (!bus->bh) {
- bus->bh = qemu_bh_new(ide_restart_bh, bus);
- qemu_bh_schedule(bus->bh);
- }
-}
-
-void ide_register_restart_cb(IDEBus *bus)
-{
- if (bus->dma->ops->restart_dma) {
- qemu_add_vm_change_state_handler(ide_restart_cb, bus);
- }
-}
-
-static IDEDMA ide_dma_nop = {
- .ops = &ide_dma_nop_ops,
- .aiocb = NULL,
-};
-
-void ide_init2(IDEBus *bus, qemu_irq irq)
-{
- int i;
-
- for(i = 0; i < 2; i++) {
- ide_init1(bus, i);
- ide_reset(&bus->ifs[i]);
- }
- bus->irq = irq;
- bus->dma = &ide_dma_nop;
-}
-
-static const MemoryRegionPortio ide_portio_list[] = {
- { 0, 8, 1, .read = ide_ioport_read, .write = ide_ioport_write },
- { 0, 1, 2, .read = ide_data_readw, .write = ide_data_writew },
- { 0, 1, 4, .read = ide_data_readl, .write = ide_data_writel },
- PORTIO_END_OF_LIST(),
-};
-
-static const MemoryRegionPortio ide_portio2_list[] = {
- { 0, 1, 1, .read = ide_status_read, .write = ide_cmd_write },
- PORTIO_END_OF_LIST(),
-};
-
-void ide_init_ioport(IDEBus *bus, ISADevice *dev, int iobase, int iobase2)
-{
- /* ??? Assume only ISA and PCI configurations, and that the PCI-ISA
- bridge has been setup properly to always register with ISA. */
- isa_register_portio_list(dev, iobase, ide_portio_list, bus, "ide");
-
- if (iobase2) {
- isa_register_portio_list(dev, iobase2, ide_portio2_list, bus, "ide");
- }
-}
-
-static bool is_identify_set(void *opaque, int version_id)
-{
- IDEState *s = opaque;
-
- return s->identify_set != 0;
-}
-
-static EndTransferFunc* transfer_end_table[] = {
- ide_sector_read,
- ide_sector_write,
- ide_transfer_stop,
- ide_atapi_cmd_reply_end,
- ide_atapi_cmd,
- ide_dummy_transfer_stop,
-};
-
-static int transfer_end_table_idx(EndTransferFunc *fn)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++)
- if (transfer_end_table[i] == fn)
- return i;
-
- return -1;
-}
-
-static int ide_drive_post_load(void *opaque, int version_id)
-{
- IDEState *s = opaque;
-
- if (s->blk && s->identify_set) {
- blk_set_enable_write_cache(s->blk, !!(s->identify_data[85] & (1 << 5)));
- }
- return 0;
-}
-
-static int ide_drive_pio_post_load(void *opaque, int version_id)
-{
- IDEState *s = opaque;
-
- if (s->end_transfer_fn_idx >= ARRAY_SIZE(transfer_end_table)) {
- return -EINVAL;
- }
- s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
- s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
- s->data_end = s->data_ptr + s->cur_io_buffer_len;
- s->atapi_dma = s->feature & 1; /* as per cmd_packet */
-
- return 0;
-}
-
-static void ide_drive_pio_pre_save(void *opaque)
-{
- IDEState *s = opaque;
- int idx;
-
- s->cur_io_buffer_offset = s->data_ptr - s->io_buffer;
- s->cur_io_buffer_len = s->data_end - s->data_ptr;
-
- idx = transfer_end_table_idx(s->end_transfer_func);
- if (idx == -1) {
- fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
- __func__);
- s->end_transfer_fn_idx = 2;
- } else {
- s->end_transfer_fn_idx = idx;
- }
-}
-
-static bool ide_drive_pio_state_needed(void *opaque)
-{
- IDEState *s = opaque;
-
- return ((s->status & DRQ_STAT) != 0)
- || (s->bus->error_status & IDE_RETRY_PIO);
-}
-
-static bool ide_tray_state_needed(void *opaque)
-{
- IDEState *s = opaque;
-
- return s->tray_open || s->tray_locked;
-}
-
-static bool ide_atapi_gesn_needed(void *opaque)
-{
- IDEState *s = opaque;
-
- return s->events.new_media || s->events.eject_request;
-}
-
-static bool ide_error_needed(void *opaque)
-{
- IDEBus *bus = opaque;
-
- return (bus->error_status != 0);
-}
-
-/* Fields for GET_EVENT_STATUS_NOTIFICATION ATAPI command */
-static const VMStateDescription vmstate_ide_atapi_gesn_state = {
- .name ="ide_drive/atapi/gesn_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = ide_atapi_gesn_needed,
- .fields = (VMStateField[]) {
- VMSTATE_BOOL(events.new_media, IDEState),
- VMSTATE_BOOL(events.eject_request, IDEState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_ide_tray_state = {
- .name = "ide_drive/tray_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = ide_tray_state_needed,
- .fields = (VMStateField[]) {
- VMSTATE_BOOL(tray_open, IDEState),
- VMSTATE_BOOL(tray_locked, IDEState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_ide_drive_pio_state = {
- .name = "ide_drive/pio_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .pre_save = ide_drive_pio_pre_save,
- .post_load = ide_drive_pio_post_load,
- .needed = ide_drive_pio_state_needed,
- .fields = (VMStateField[]) {
- VMSTATE_INT32(req_nb_sectors, IDEState),
- VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 1,
- vmstate_info_uint8, uint8_t),
- VMSTATE_INT32(cur_io_buffer_offset, IDEState),
- VMSTATE_INT32(cur_io_buffer_len, IDEState),
- VMSTATE_UINT8(end_transfer_fn_idx, IDEState),
- VMSTATE_INT32(elementary_transfer_size, IDEState),
- VMSTATE_INT32(packet_transfer_size, IDEState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-const VMStateDescription vmstate_ide_drive = {
- .name = "ide_drive",
- .version_id = 3,
- .minimum_version_id = 0,
- .post_load = ide_drive_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_INT32(mult_sectors, IDEState),
- VMSTATE_INT32(identify_set, IDEState),
- VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set),
- VMSTATE_UINT8(feature, IDEState),
- VMSTATE_UINT8(error, IDEState),
- VMSTATE_UINT32(nsector, IDEState),
- VMSTATE_UINT8(sector, IDEState),
- VMSTATE_UINT8(lcyl, IDEState),
- VMSTATE_UINT8(hcyl, IDEState),
- VMSTATE_UINT8(hob_feature, IDEState),
- VMSTATE_UINT8(hob_sector, IDEState),
- VMSTATE_UINT8(hob_nsector, IDEState),
- VMSTATE_UINT8(hob_lcyl, IDEState),
- VMSTATE_UINT8(hob_hcyl, IDEState),
- VMSTATE_UINT8(select, IDEState),
- VMSTATE_UINT8(status, IDEState),
- VMSTATE_UINT8(lba48, IDEState),
- VMSTATE_UINT8(sense_key, IDEState),
- VMSTATE_UINT8(asc, IDEState),
- VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
- VMSTATE_END_OF_LIST()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_ide_drive_pio_state,
- &vmstate_ide_tray_state,
- &vmstate_ide_atapi_gesn_state,
- NULL
- }
-};
-
-static const VMStateDescription vmstate_ide_error_status = {
- .name ="ide_bus/error",
- .version_id = 2,
- .minimum_version_id = 1,
- .needed = ide_error_needed,
- .fields = (VMStateField[]) {
- VMSTATE_INT32(error_status, IDEBus),
- VMSTATE_INT64_V(retry_sector_num, IDEBus, 2),
- VMSTATE_UINT32_V(retry_nsector, IDEBus, 2),
- VMSTATE_UINT8_V(retry_unit, IDEBus, 2),
- VMSTATE_END_OF_LIST()
- }
-};
-
-const VMStateDescription vmstate_ide_bus = {
- .name = "ide_bus",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT8(cmd, IDEBus),
- VMSTATE_UINT8(unit, IDEBus),
- VMSTATE_END_OF_LIST()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_ide_error_status,
- NULL
- }
-};
-
-void ide_drive_get(DriveInfo **hd, int n)
-{
- int i;
- int highest_bus = drive_get_max_bus(IF_IDE) + 1;
- int max_devs = drive_get_max_devs(IF_IDE);
- int n_buses = max_devs ? (n / max_devs) : n;
-
- /*
- * Note: The number of actual buses available is not known.
- * We compute this based on the size of the DriveInfo* array, n.
- * If it is less than max_devs * <num_real_buses>,
- * We will stop looking for drives prematurely instead of overfilling
- * the array.
- */
-
- if (highest_bus > n_buses) {
- error_report("Too many IDE buses defined (%d > %d)",
- highest_bus, n_buses);
- exit(1);
- }
-
- for (i = 0; i < n; i++) {
- hd[i] = drive_get_by_index(IF_IDE, i);
- }
-}