summaryrefslogtreecommitdiffstats
path: root/hw/ide/core.c
diff options
context:
space:
mode:
authorGerd Hoffmann2009-08-20 15:22:26 +0200
committerAnthony Liguori2009-08-28 03:46:50 +0200
commit59f2a78793b6d17634f39646d604e84af51e0919 (patch)
treeda46ccf772b699b442b81147ded89cf75e97cb3b /hw/ide/core.c
parentide: add save/restore support for mmio (diff)
downloadqemu-59f2a78793b6d17634f39646d604e84af51e0919.tar.gz
qemu-59f2a78793b6d17634f39646d604e84af51e0919.tar.xz
qemu-59f2a78793b6d17634f39646d604e84af51e0919.zip
ide: move code to hw/ide/
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/ide/core.c')
-rw-r--r--hw/ide/core.c2701
1 files changed, 2701 insertions, 0 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c
new file mode 100644
index 0000000000..79a3a9c7ad
--- /dev/null
+++ b/hw/ide/core.c
@@ -0,0 +1,2701 @@
+/*
+ * 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 <hw/hw.h>
+#include <hw/pc.h>
+#include <hw/pci.h>
+#include <hw/scsi-disk.h>
+#include <hw/sh.h>
+#include "block.h"
+#include "block_int.h"
+#include "qemu-timer.h"
+#include "sysemu.h"
+#include "dma.h"
+
+#include <hw/ide/internal.h>
+
+static int smart_attributes[][5] = {
+ /* id, flags, val, wrst, thrsh */
+ { 0x01, 0x03, 0x64, 0x64, 0x06}, /* raw read */
+ { 0x03, 0x03, 0x64, 0x64, 0x46}, /* spin up */
+ { 0x04, 0x02, 0x64, 0x64, 0x14}, /* start stop count */
+ { 0x05, 0x03, 0x64, 0x64, 0x36}, /* remapped sectors */
+ { 0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+/* XXX: DVDs that could fit on a CD will be reported as a CD */
+static inline int media_present(IDEState *s)
+{
+ return (s->nb_sectors > 0);
+}
+
+static inline int media_is_dvd(IDEState *s)
+{
+ return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS);
+}
+
+static inline int media_is_cd(IDEState *s)
+{
+ return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS);
+}
+
+static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb);
+static void ide_dma_restart(IDEState *s);
+static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret);
+
+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 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;
+
+ 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);
+ 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), QEMU_VERSION, 8); /* firmware version */
+ padstr((char *)(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 + 62, 0x07); /* single word dma0-2 supported */
+ 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 */
+ /* 14=NOP supported, 0=SMART supported */
+ put_le16(p + 82, (1 << 14) | 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, 1=SMART self test, 0=SMART error logging */
+ put_le16(p + 84, (1 << 14) | 0);
+ /* 14 = NOP supported, 0=SMART feature set enabled */
+ put_le16(p + 85, (1 << 14) | 1);
+ /* 13=flush_cache_ext,12=flush_cache,10=lba48 */
+ put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
+ /* 14=set to 1, 1=smart self test, 0=smart error logging */
+ 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);
+ 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;
+
+ 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));
+ 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), QEMU_VERSION, 8); /* firmware version */
+ padstr((char *)(p + 27), "QEMU DVD-ROM", 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 */
+ put_le16(p + 64, 0x3f); /* PIO modes 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 */
+ put_le16(p + 64, 1); /* PIO modes */
+#endif
+ 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 */
+#ifdef USE_DMA_CDROM
+ put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
+#endif
+ memcpy(s->identify_data, p, sizeof(s->identify_data));
+ s->identify_set = 1;
+}
+
+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 */
+ put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
+ put_le16(p + 8, s->nb_sectors); /* Sectors per card */
+ padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
+ put_le16(p + 22, 0x0004); /* ECC bytes */
+ padstr((char *) (p + 23), QEMU_VERSION, 8); /* Firmware Revision */
+ padstr((char *) (p + 27), "QEMU MICRODRIVE", 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);
+ put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
+ put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
+ 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 */
+
+ 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->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_dma_submit_check(IDEState *s,
+ BlockDriverCompletionFunc *dma_cb, BMDMAState *bm)
+{
+ if (bm->aiocb)
+ return;
+ dma_cb(bm, -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;
+ if (!(s->status & ERR_STAT))
+ 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;
+}
+
+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);
+}
+
+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=%" PRId64 "\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);
+ if (ret != 0) {
+ ide_rw_error(s);
+ return;
+ }
+ 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;
+ }
+}
+
+
+/* return 0 if buffer completed */
+static int dma_buf_prepare(BMDMAState *bm, int is_write)
+{
+ IDEState *s = bmdma_active_if(bm);
+ struct {
+ uint32_t addr;
+ uint32_t size;
+ } prd;
+ int l, len;
+
+ qemu_sglist_init(&s->sg, s->nsector / (TARGET_PAGE_SIZE/512) + 1);
+ s->io_buffer_size = 0;
+ for(;;) {
+ if (bm->cur_prd_len == 0) {
+ /* end of table (with a fail safe of one page) */
+ if (bm->cur_prd_last ||
+ (bm->cur_addr - bm->addr) >= 4096)
+ return s->io_buffer_size != 0;
+ cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8);
+ bm->cur_addr += 8;
+ prd.addr = le32_to_cpu(prd.addr);
+ prd.size = le32_to_cpu(prd.size);
+ len = prd.size & 0xfffe;
+ if (len == 0)
+ len = 0x10000;
+ bm->cur_prd_len = len;
+ bm->cur_prd_addr = prd.addr;
+ bm->cur_prd_last = (prd.size & 0x80000000);
+ }
+ l = bm->cur_prd_len;
+ if (l > 0) {
+ qemu_sglist_add(&s->sg, bm->cur_prd_addr, l);
+ bm->cur_prd_addr += l;
+ bm->cur_prd_len -= l;
+ s->io_buffer_size += l;
+ }
+ }
+ return 1;
+}
+
+static void dma_buf_commit(IDEState *s, int is_write)
+{
+ qemu_sglist_destroy(&s->sg);
+}
+
+void ide_dma_error(IDEState *s)
+{
+ ide_transfer_stop(s);
+ s->error = ABRT_ERR;
+ s->status = READY_STAT | ERR_STAT;
+ ide_set_irq(s);
+}
+
+static int ide_handle_write_error(IDEState *s, int error, int op)
+{
+ BlockInterfaceErrorAction action = drive_get_onerror(s->bs);
+
+ if (action == BLOCK_ERR_IGNORE)
+ return 0;
+
+ if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
+ || action == BLOCK_ERR_STOP_ANY) {
+ s->bus->bmdma->unit = s->unit;
+ s->bus->bmdma->status |= op;
+ vm_stop(0);
+ } else {
+ if (op == BM_STATUS_DMA_RETRY) {
+ dma_buf_commit(s, 0);
+ ide_dma_error(s);
+ } else {
+ ide_rw_error(s);
+ }
+ }
+
+ return 1;
+}
+
+/* return 0 if buffer completed */
+static int dma_buf_rw(BMDMAState *bm, int is_write)
+{
+ IDEState *s = bmdma_active_if(bm);
+ struct {
+ uint32_t addr;
+ uint32_t size;
+ } prd;
+ int l, len;
+
+ for(;;) {
+ l = s->io_buffer_size - s->io_buffer_index;
+ if (l <= 0)
+ break;
+ if (bm->cur_prd_len == 0) {
+ /* end of table (with a fail safe of one page) */
+ if (bm->cur_prd_last ||
+ (bm->cur_addr - bm->addr) >= 4096)
+ return 0;
+ cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8);
+ bm->cur_addr += 8;
+ prd.addr = le32_to_cpu(prd.addr);
+ prd.size = le32_to_cpu(prd.size);
+ len = prd.size & 0xfffe;
+ if (len == 0)
+ len = 0x10000;
+ bm->cur_prd_len = len;
+ bm->cur_prd_addr = prd.addr;
+ bm->cur_prd_last = (prd.size & 0x80000000);
+ }
+ if (l > bm->cur_prd_len)
+ l = bm->cur_prd_len;
+ if (l > 0) {
+ if (is_write) {
+ cpu_physical_memory_write(bm->cur_prd_addr,
+ s->io_buffer + s->io_buffer_index, l);
+ } else {
+ cpu_physical_memory_read(bm->cur_prd_addr,
+ s->io_buffer + s->io_buffer_index, l);
+ }
+ bm->cur_prd_addr += l;
+ bm->cur_prd_len -= l;
+ s->io_buffer_index += l;
+ }
+ }
+ return 1;
+}
+
+static void ide_read_dma_cb(void *opaque, int ret)
+{
+ BMDMAState *bm = opaque;
+ IDEState *s = bmdma_active_if(bm);
+ int n;
+ int64_t sector_num;
+
+ if (ret < 0) {
+ dma_buf_commit(s, 1);
+ ide_dma_error(s);
+ return;
+ }
+
+ n = s->io_buffer_size >> 9;
+ sector_num = ide_get_sector(s);
+ if (n > 0) {
+ dma_buf_commit(s, 1);
+ 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);
+ eot:
+ bm->status &= ~BM_STATUS_DMAING;
+ bm->status |= BM_STATUS_INT;
+ bm->dma_cb = NULL;
+ bm->unit = -1;
+ bm->aiocb = NULL;
+ return;
+ }
+
+ /* launch next transfer */
+ n = s->nsector;
+ s->io_buffer_index = 0;
+ s->io_buffer_size = n * 512;
+ if (dma_buf_prepare(bm, 1) == 0)
+ goto eot;
+#ifdef DEBUG_AIO
+ printf("aio_read: sector_num=%" PRId64 " n=%d\n", sector_num, n);
+#endif
+ bm->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num, ide_read_dma_cb, bm);
+ ide_dma_submit_check(s, ide_read_dma_cb, bm);
+}
+
+static void ide_sector_read_dma(IDEState *s)
+{
+ s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
+ s->io_buffer_index = 0;
+ s->io_buffer_size = 0;
+ s->is_read = 1;
+ 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=%" PRId64 "\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);
+
+ if (ret != 0) {
+ if (ide_handle_write_error(s, -ret, BM_STATUS_PIO_RETRY))
+ return;
+ }
+
+ s->nsector -= n;
+ if (s->nsector == 0) {
+ /* no more sectors 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 void ide_dma_restart_bh(void *opaque)
+{
+ BMDMAState *bm = opaque;
+
+ qemu_bh_delete(bm->bh);
+ bm->bh = NULL;
+
+ if (bm->status & BM_STATUS_DMA_RETRY) {
+ bm->status &= ~BM_STATUS_DMA_RETRY;
+ ide_dma_restart(bmdma_active_if(bm));
+ } else if (bm->status & BM_STATUS_PIO_RETRY) {
+ bm->status &= ~BM_STATUS_PIO_RETRY;
+ ide_sector_write(bmdma_active_if(bm));
+ }
+}
+
+void ide_dma_restart_cb(void *opaque, int running, int reason)
+{
+ BMDMAState *bm = opaque;
+
+ if (!running)
+ return;
+
+ if (!bm->bh) {
+ bm->bh = qemu_bh_new(ide_dma_restart_bh, bm);
+ qemu_bh_schedule(bm->bh);
+ }
+}
+
+static void ide_write_dma_cb(void *opaque, int ret)
+{
+ BMDMAState *bm = opaque;
+ IDEState *s = bmdma_active_if(bm);
+ int n;
+ int64_t sector_num;
+
+ if (ret < 0) {
+ if (ide_handle_write_error(s, -ret, BM_STATUS_DMA_RETRY))
+ return;
+ }
+
+ n = s->io_buffer_size >> 9;
+ sector_num = ide_get_sector(s);
+ if (n > 0) {
+ dma_buf_commit(s, 0);
+ 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);
+ eot:
+ bm->status &= ~BM_STATUS_DMAING;
+ bm->status |= BM_STATUS_INT;
+ bm->dma_cb = NULL;
+ bm->unit = -1;
+ bm->aiocb = NULL;
+ return;
+ }
+
+ n = s->nsector;
+ s->io_buffer_size = n * 512;
+ /* launch next transfer */
+ if (dma_buf_prepare(bm, 0) == 0)
+ goto eot;
+#ifdef DEBUG_AIO
+ printf("aio_write: sector_num=%" PRId64 " n=%d\n", sector_num, n);
+#endif
+ bm->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, ide_write_dma_cb, bm);
+ ide_dma_submit_check(s, ide_write_dma_cb, bm);
+}
+
+static void ide_sector_write_dma(IDEState *s)
+{
+ s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT;
+ s->io_buffer_index = 0;
+ s->io_buffer_size = 0;
+ s->is_read = 0;
+ ide_dma_start(s, ide_write_dma_cb);
+}
+
+void ide_atapi_cmd_ok(IDEState *s)
+{
+ s->error = 0;
+ s->status = READY_STAT | SEEK_STAT;
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
+ ide_set_irq(s);
+}
+
+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 void ide_atapi_cmd_check_status(IDEState *s)
+{
+#ifdef DEBUG_IDE_ATAPI
+ printf("atapi_cmd_check_status\n");
+#endif
+ s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4);
+ s->status = ERR_STAT;
+ s->nsector = 0;
+ ide_set_irq(s);
+}
+
+static inline void cpu_to_ube16(uint8_t *buf, int val)
+{
+ buf[0] = val >> 8;
+ buf[1] = val & 0xff;
+}
+
+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 & 0xff;
+}
+
+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_data_to_raw(uint8_t *buf, int lba)
+{
+ /* 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 */
+ buf += 2048;
+ /* XXX: ECC not computed */
+ memset(buf, 0, 288);
+}
+
+static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf,
+ int sector_size)
+{
+ int ret;
+
+ switch(sector_size) {
+ case 2048:
+ ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4);
+ break;
+ case 2352:
+ ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4);
+ if (ret < 0)
+ return ret;
+ cd_data_to_raw(buf, lba);
+ break;
+ default:
+ ret = -EIO;
+ break;
+ }
+ return ret;
+}
+
+void ide_atapi_io_error(IDEState *s, int ret)
+{
+ /* XXX: handle more errors */
+ if (ret == -ENOMEDIUM) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ } else {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_LOGICAL_BLOCK_OOR);
+ }
+}
+
+/* The whole ATAPI transfer logic is handled in this function */
+static void ide_atapi_cmd_reply_end(IDEState *s)
+{
+ int byte_count_limit, size, ret;
+#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 | SEEK_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) {
+ ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size);
+ if (ret < 0) {
+ ide_transfer_stop(s);
+ ide_atapi_io_error(s, ret);
+ return;
+ }
+ 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->io_buffer_size = size; /* dma: send the reply data as one chunk */
+ s->elementary_transfer_size = 0;
+ s->io_buffer_index = 0;
+
+ if (s->atapi_dma) {
+ s->status = READY_STAT | SEEK_STAT | DRQ_STAT;
+ ide_dma_start(s, ide_atapi_cmd_read_dma_cb);
+ } else {
+ s->status = READY_STAT | SEEK_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 | SEEK_STAT;
+ ide_atapi_cmd_reply_end(s);
+}
+
+/* ATAPI DMA support */
+
+/* XXX: handle read errors */
+static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret)
+{
+ BMDMAState *bm = opaque;
+ IDEState *s = bmdma_active_if(bm);
+ int data_offset, n;
+
+ if (ret < 0) {
+ ide_atapi_io_error(s, ret);
+ goto eot;
+ }
+
+ if (s->io_buffer_size > 0) {
+ /*
+ * For a cdrom read sector command (s->lba != -1),
+ * adjust the lba for the next s->io_buffer_size chunk
+ * and dma the current chunk.
+ * For a command != read (s->lba == -1), just transfer
+ * the reply data.
+ */
+ if (s->lba != -1) {
+ if (s->cd_sector_size == 2352) {
+ n = 1;
+ cd_data_to_raw(s->io_buffer, s->lba);
+ } else {
+ n = s->io_buffer_size >> 11;
+ }
+ s->lba += n;
+ }
+ s->packet_transfer_size -= s->io_buffer_size;
+ if (dma_buf_rw(bm, 1) == 0)
+ goto eot;
+ }
+
+ if (s->packet_transfer_size <= 0) {
+ s->status = READY_STAT | SEEK_STAT;
+ s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
+ ide_set_irq(s);
+ eot:
+ bm->status &= ~BM_STATUS_DMAING;
+ bm->status |= BM_STATUS_INT;
+ bm->dma_cb = NULL;
+ bm->unit = -1;
+ bm->aiocb = NULL;
+ return;
+ }
+
+ s->io_buffer_index = 0;
+ if (s->cd_sector_size == 2352) {
+ n = 1;
+ s->io_buffer_size = s->cd_sector_size;
+ data_offset = 16;
+ } else {
+ n = s->packet_transfer_size >> 11;
+ if (n > (IDE_DMA_BUF_SECTORS / 4))
+ n = (IDE_DMA_BUF_SECTORS / 4);
+ s->io_buffer_size = n * 2048;
+ data_offset = 0;
+ }
+#ifdef DEBUG_AIO
+ printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
+#endif
+ bm->iov.iov_base = (void *)(s->io_buffer + data_offset);
+ bm->iov.iov_len = n * 4 * 512;
+ qemu_iovec_init_external(&bm->qiov, &bm->iov, 1);
+ bm->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2, &bm->qiov,
+ n * 4, ide_atapi_cmd_read_dma_cb, bm);
+ if (!bm->aiocb) {
+ /* Note: media not present is the most likely case */
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ goto eot;
+ }
+}
+
+/* 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 = 0;
+ s->io_buffer_size = 0;
+ s->cd_sector_size = sector_size;
+
+ /* XXX: check if BUSY_STAT should be set */
+ s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_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 %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio",
+ 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 inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index,
+ uint16_t profile)
+{
+ uint8_t *buf_profile = buf + 12; /* start of profiles */
+
+ buf_profile += ((*index) * 4); /* start of indexed profile */
+ cpu_to_ube16 (buf_profile, profile);
+ buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7]));
+
+ /* each profile adds 4 bytes to the response */
+ (*index)++;
+ buf[11] += 4; /* Additional Length */
+
+ return 4;
+}
+
+static int ide_dvd_read_structure(IDEState *s, int format,
+ const uint8_t *packet, uint8_t *buf)
+{
+ switch (format) {
+ case 0x0: /* Physical format information */
+ {
+ int layer = packet[6];
+ uint64_t total_sectors;
+
+ if (layer != 0)
+ return -ASC_INV_FIELD_IN_CMD_PACKET;
+
+ bdrv_get_geometry(s->bs, &total_sectors);
+ total_sectors >>= 2;
+ if (total_sectors == 0)
+ return -ASC_MEDIUM_NOT_PRESENT;
+
+ buf[4] = 1; /* DVD-ROM, part version 1 */
+ buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */
+ buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */
+ buf[7] = 0; /* default densities */
+
+ /* FIXME: 0x30000 per spec? */
+ cpu_to_ube32(buf + 8, 0); /* start sector */
+ cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */
+ cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */
+
+ /* Size of buffer, not including 2 byte size field */
+ cpu_to_be16wu((uint16_t *)buf, 2048 + 2);
+
+ /* 2k data + 4 byte header */
+ return (2048 + 4);
+ }
+
+ case 0x01: /* DVD copyright information */
+ buf[4] = 0; /* no copyright data */
+ buf[5] = 0; /* no region restrictions */
+
+ /* Size of buffer, not including 2 byte size field */
+ cpu_to_be16wu((uint16_t *)buf, 4 + 2);
+
+ /* 4 byte header + 4 byte data */
+ return (4 + 4);
+
+ case 0x03: /* BCA information - invalid field for no BCA info */
+ return -ASC_INV_FIELD_IN_CMD_PACKET;
+
+ case 0x04: /* DVD disc manufacturing information */
+ /* Size of buffer, not including 2 byte size field */
+ cpu_to_be16wu((uint16_t *)buf, 2048 + 2);
+
+ /* 2k data + 4 byte header */
+ return (2048 + 4);
+
+ case 0xff:
+ /*
+ * This lists all the command capabilities above. Add new ones
+ * in order and update the length and buffer return values.
+ */
+
+ buf[4] = 0x00; /* Physical format */
+ buf[5] = 0x40; /* Not writable, is readable */
+ cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4);
+
+ buf[8] = 0x01; /* Copyright info */
+ buf[9] = 0x40; /* Not writable, is readable */
+ cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4);
+
+ buf[12] = 0x03; /* BCA info */
+ buf[13] = 0x40; /* Not writable, is readable */
+ cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4);
+
+ buf[16] = 0x04; /* Manufacturing info */
+ buf[17] = 0x40; /* Not writable, is readable */
+ cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4);
+
+ /* Size of buffer, not including 2 byte size field */
+ cpu_to_be16wu((uint16_t *)buf, 16 + 2);
+
+ /* data written + 4 byte header */
+ return (16 + 4);
+
+ default: /* TODO: formats beyond DVD-ROM requires */
+ return -ASC_INV_FIELD_IN_CMD_PACKET;
+ }
+}
+
+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
+ /* If there's a UNIT_ATTENTION condition pending, only
+ REQUEST_SENSE and INQUIRY commands are allowed to complete. */
+ if (s->sense_key == SENSE_UNIT_ATTENTION &&
+ s->io_buffer[0] != GPCMD_REQUEST_SENSE &&
+ s->io_buffer[0] != GPCMD_INQUIRY) {
+ ide_atapi_cmd_check_status(s);
+ return;
+ }
+ switch(s->io_buffer[0]) {
+ case GPCMD_TEST_UNIT_READY:
+ if (bdrv_is_inserted(s->bs) && !s->cdrom_changed) {
+ ide_atapi_cmd_ok(s);
+ } else {
+ s->cdrom_changed = 0;
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ }
+ break;
+ case GPCMD_MODE_SENSE_6:
+ case GPCMD_MODE_SENSE_10:
+ {
+ int action, code;
+ if (packet[0] == GPCMD_MODE_SENSE_10)
+ max_len = ube16_to_cpu(packet + 7);
+ else
+ max_len = packet[4];
+ 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;
+
+ /* Claim PLAY_AUDIO capability (0x01) since some Linux
+ code checks for this to automount media. */
+ buf[12] = 0x71;
+ 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;
+ if (s->sense_key == SENSE_UNIT_ATTENTION)
+ s->sense_key = SENSE_NONE;
+ 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 (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;
+ }
+ ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
+ }
+ break;
+ case GPCMD_READ_CD:
+ {
+ int nb_sectors, lba, transfer_request;
+
+ 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;
+ }
+ 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:
+ {
+ unsigned int lba;
+ uint64_t total_sectors;
+
+ bdrv_get_geometry(s->bs, &total_sectors);
+ total_sectors >>= 2;
+ if (total_sectors == 0) {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ lba = ube32_to_cpu(packet + 2);
+ if (lba >= total_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, err = 0;
+ start = packet[4] & 1;
+ eject = (packet[4] >> 1) & 1;
+
+ if (eject) {
+ err = bdrv_eject(s->bs, !start);
+ }
+
+ switch (err) {
+ case 0:
+ ide_atapi_cmd_ok(s);
+ break;
+ case -EBUSY:
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIA_REMOVAL_PREVENTED);
+ break;
+ default:
+ ide_atapi_cmd_error(s, SENSE_NOT_READY,
+ ASC_MEDIUM_NOT_PRESENT);
+ break;
+ }
+ }
+ 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;
+ uint64_t total_sectors;
+
+ bdrv_get_geometry(s->bs, &total_sectors);
+ total_sectors >>= 2;
+ if (total_sectors == 0) {
+ 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(total_sectors, 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(total_sectors, 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:
+ {
+ uint64_t total_sectors;
+
+ bdrv_get_geometry(s->bs, &total_sectors);
+ total_sectors >>= 2;
+ if (total_sectors == 0) {
+ 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, total_sectors - 1);
+ cpu_to_ube32(buf + 4, 2048);
+ ide_atapi_cmd_reply(s, 8, 8);
+ }
+ break;
+ case GPCMD_READ_DVD_STRUCTURE:
+ {
+ int media = packet[1];
+ int format = packet[7];
+ int ret;
+
+ max_len = ube16_to_cpu(packet + 8);
+
+ if (format < 0xff) {
+ if (media_is_cd(s)) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INCOMPATIBLE_FORMAT);
+ break;
+ } else if (!media_present(s)) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ break;
+ }
+ }
+
+ memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ?
+ IDE_DMA_BUF_SECTORS * 512 + 4 : max_len);
+
+ switch (format) {
+ case 0x00 ... 0x7f:
+ case 0xff:
+ if (media == 0) {
+ ret = ide_dvd_read_structure(s, format, packet, buf);
+
+ if (ret < 0)
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret);
+ else
+ ide_atapi_cmd_reply(s, ret, max_len);
+
+ break;
+ }
+ /* TODO: BD support, fall through for now */
+
+ /* Generic disk structures */
+ case 0x80: /* TODO: AACS volume identifier */
+ case 0x81: /* TODO: AACS media serial number */
+ case 0x82: /* TODO: AACS media identifier */
+ case 0x83: /* TODO: AACS media key block */
+ case 0x90: /* TODO: List of recognized format layers */
+ case 0xc0: /* TODO: Write protection status */
+ default:
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ break;
+ }
+ }
+ break;
+ case GPCMD_SET_SPEED:
+ ide_atapi_cmd_ok(s);
+ 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; /* additional length */
+ buf[5] = 0; /* reserved */
+ buf[6] = 0; /* reserved */
+ buf[7] = 0; /* reserved */
+ padstr8(buf + 8, 8, "QEMU");
+ padstr8(buf + 16, 16, "QEMU DVD-ROM");
+ padstr8(buf + 32, 4, QEMU_VERSION);
+ ide_atapi_cmd_reply(s, 36, max_len);
+ break;
+ case GPCMD_GET_CONFIGURATION:
+ {
+ uint32_t len;
+ uint8_t index = 0;
+
+ /* only feature 0 is supported */
+ if (packet[2] != 0 || packet[3] != 0) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ break;
+ }
+
+ /* XXX: could result in alignment problems in some architectures */
+ max_len = ube16_to_cpu(packet + 7);
+
+ /*
+ * XXX: avoid overflow for io_buffer if max_len is bigger than
+ * the size of that buffer (dimensioned to max number of
+ * sectors to transfer at once)
+ *
+ * Only a problem if the feature/profiles grow.
+ */
+ if (max_len > 512) /* XXX: assume 1 sector */
+ max_len = 512;
+
+ memset(buf, 0, max_len);
+ /*
+ * the number of sectors from the media tells us which profile
+ * to use as current. 0 means there is no media
+ */
+ if (media_is_dvd(s))
+ cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM);
+ else if (media_is_cd(s))
+ cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM);
+
+ buf[10] = 0x02 | 0x01; /* persistent and current */
+ len = 12; /* headers: 8 + 4 */
+ len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM);
+ len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM);
+ cpu_to_ube32(buf, len - 4); /* data length */
+
+ ide_atapi_cmd_reply(s, len, max_len);
+ break;
+ }
+ default:
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_ILLEGAL_OPCODE);
+ break;
+ }
+}
+
+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 cdrom_change_cb(void *opaque)
+{
+ IDEState *s = opaque;
+ uint64_t nb_sectors;
+
+ bdrv_get_geometry(s->bs, &nb_sectors);
+ s->nb_sectors = nb_sectors;
+
+ s->sense_key = SENSE_UNIT_ATTENTION;
+ s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED;
+ s->cdrom_changed = 1;
+ ide_set_irq(s);
+}
+
+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;
+ IDEState *s;
+ int n;
+ int lba48 = 0;
+
+#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 */
+#if defined(DEBUG_IDE)
+ printf("ide: CMD=%02x\n", val);
+#endif
+ s = idebus_active_if(bus);
+ /* ignore commands to non existant slave */
+ if (s != bus->ifs && !s->bs)
+ break;
+
+ /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
+ if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
+ break;
+
+ switch(val) {
+ case WIN_IDENTIFY:
+ if (s->bs && !s->is_cdrom) {
+ if (!s->is_cf)
+ 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);
+ } 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->is_cf && s->nsector == 0) {
+ /* Disable Read and Write Multiple */
+ s->mult_sectors = 0;
+ s->status = READY_STAT | SEEK_STAT;
+ } 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;
+ s->status = READY_STAT | SEEK_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 | SEEK_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:
+ case CFA_WRITE_SECT_WO_ERASE:
+ case WIN_WRITE_VERIFY:
+ 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);
+ s->media_changed = 1;
+ 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:
+ case CFA_WRITE_MULTI_WO_ERASE:
+ 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);
+ s->media_changed = 1;
+ 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);
+ s->media_changed = 1;
+ 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 | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case WIN_CHECKPOWERMODE1:
+ case WIN_CHECKPOWERMODE2:
+ s->nsector = 0xff; /* device active or idle */
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case WIN_SETFEATURES:
+ if (!s->bs)
+ goto abort_cmd;
+ /* XXX: valid for CDROM ? */
+ switch(s->feature) {
+ case 0xcc: /* reverting to power-on defaults enable */
+ case 0x66: /* reverting to power-on defaults disable */
+ case 0x02: /* write cache enable */
+ case 0x82: /* write cache 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 */
+ 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 + 62,0x07);
+ put_le16(s->identify_data + 63,0x07);
+ put_le16(s->identify_data + 88,0x3f);
+ break;
+ case 0x02: /* sigle word dma mode*/
+ put_le16(s->identify_data + 62,0x07 | (1 << (val + 8)));
+ put_le16(s->identify_data + 63,0x07);
+ put_le16(s->identify_data + 88,0x3f);
+ break;
+ case 0x04: /* mdma mode */
+ put_le16(s->identify_data + 62,0x07);
+ 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 + 62,0x07);
+ 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 | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case WIN_STANDBY:
+ case WIN_STANDBY2:
+ case WIN_STANDBYNOW1:
+ case WIN_STANDBYNOW2:
+ case WIN_IDLEIMMEDIATE:
+ case CFA_IDLEIMMEDIATE:
+ case WIN_SETIDLE1:
+ case WIN_SETIDLE2:
+ case WIN_SLEEPNOW1:
+ case WIN_SLEEPNOW2:
+ s->status = READY_STAT;
+ ide_set_irq(s);
+ break;
+ case WIN_SEEK:
+ if(s->is_cdrom)
+ goto abort_cmd;
+ /* XXX: Check that seek is within bounds */
+ s->status = READY_STAT | SEEK_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);
+ if (s->is_cdrom)
+ s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet
+ * devices to return a clear status register
+ * with READY_STAT *not* set. */
+ else
+ s->status = READY_STAT | SEEK_STAT;
+ s->error = 0x01; /* Device 0 passed, Device 1 passed or not
+ * present.
+ */
+ ide_set_irq(s);
+ 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->status = READY_STAT | SEEK_STAT;
+ s->atapi_dma = s->feature & 1;
+ s->nsector = 1;
+ ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE,
+ ide_atapi_cmd);
+ break;
+ /* CF-ATA commands */
+ case CFA_REQ_EXT_ERROR_CODE:
+ if (!s->is_cf)
+ goto abort_cmd;
+ s->error = 0x09; /* miscellaneous error */
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case CFA_ERASE_SECTORS:
+ case CFA_WEAR_LEVEL:
+ if (!s->is_cf)
+ goto abort_cmd;
+ if (val == CFA_WEAR_LEVEL)
+ s->nsector = 0;
+ if (val == CFA_ERASE_SECTORS)
+ s->media_changed = 1;
+ s->error = 0x00;
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case CFA_TRANSLATE_SECTOR:
+ if (!s->is_cf)
+ goto abort_cmd;
+ s->error = 0x00;
+ 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);
+ break;
+ case CFA_ACCESS_METADATA_STORAGE:
+ if (!s->is_cf)
+ goto abort_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:
+ goto abort_cmd;
+ }
+ ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
+ s->status = 0x00; /* NOTE: READY is _not_ set */
+ ide_set_irq(s);
+ break;
+ case IBM_SENSE_CONDITION:
+ if (!s->is_cf)
+ goto abort_cmd;
+ switch (s->feature) {
+ case 0x01: /* sense temperature in device */
+ s->nsector = 0x50; /* +20 C */
+ break;
+ default:
+ goto abort_cmd;
+ }
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+
+ case WIN_SMART:
+ if (s->is_cdrom)
+ goto abort_cmd;
+ 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;
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case SMART_ENABLE:
+ s->smart_enabled = 1;
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ 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;
+ }
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case SMART_STATUS:
+ if (!s->smart_errors) {
+ s->hcyl = 0xc2;
+ s->lcyl = 0x4f;
+ } else {
+ s->hcyl = 0x2c;
+ s->lcyl = 0xf4;
+ }
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ case SMART_READ_THRESH:
+ memset(s->io_buffer, 0, 0x200);
+ s->io_buffer[0] = 0x01; /* smart struct version */
+ for (n=0; n<30; n++) {
+ if (smart_attributes[n][0] == 0)
+ break;
+ s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
+ s->io_buffer[2+1+(n*12)] = smart_attributes[n][4];
+ }
+ for (n=0; n<511; n++) /* checksum */
+ 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);
+ break;
+ case SMART_READ_DATA:
+ memset(s->io_buffer, 0, 0x200);
+ s->io_buffer[0] = 0x01; /* smart struct version */
+ for (n=0; n<30; n++) {
+ if (smart_attributes[n][0] == 0)
+ break;
+ s->io_buffer[2+0+(n*12)] = smart_attributes[n][0];
+ s->io_buffer[2+1+(n*12)] = smart_attributes[n][1];
+ s->io_buffer[2+3+(n*12)] = smart_attributes[n][2];
+ s->io_buffer[2+4+(n*12)] = smart_attributes[n][3];
+ }
+ 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);
+ break;
+ 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);
+ break;
+ 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 = 0;
+ 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 */
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_irq(s);
+ break;
+ default:
+ goto abort_cmd;
+ }
+ break;
+ default:
+ goto abort_cmd;
+ }
+ break;
+ default:
+ abort_cmd:
+ ide_abort_command(s);
+ ide_set_irq(s);
+ break;
+ }
+ }
+}
+
+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].bs && !bus->ifs[1].bs) ||
+ (s != bus->ifs && !s->bs))
+ ret = 0;
+ else if (!hob)
+ ret = s->error;
+ else
+ ret = s->hob_feature;
+ break;
+ case 2:
+ if (!bus->ifs[0].bs && !bus->ifs[1].bs)
+ ret = 0;
+ else if (!hob)
+ ret = s->nsector & 0xff;
+ else
+ ret = s->hob_nsector;
+ break;
+ case 3:
+ if (!bus->ifs[0].bs && !bus->ifs[1].bs)
+ ret = 0;
+ else if (!hob)
+ ret = s->sector;
+ else
+ ret = s->hob_sector;
+ break;
+ case 4:
+ if (!bus->ifs[0].bs && !bus->ifs[1].bs)
+ ret = 0;
+ else if (!hob)
+ ret = s->lcyl;
+ else
+ ret = s->hob_lcyl;
+ break;
+ case 5:
+ if (!bus->ifs[0].bs && !bus->ifs[1].bs)
+ ret = 0;
+ else if (!hob)
+ ret = s->hcyl;
+ else
+ ret = s->hob_hcyl;
+ break;
+ case 6:
+ if (!bus->ifs[0].bs && !bus->ifs[1].bs)
+ ret = 0;
+ else
+ ret = s->select;
+ break;
+ default:
+ case 7:
+ if ((!bus->ifs[0].bs && !bus->ifs[1].bs) ||
+ (s != bus->ifs && !s->bs))
+ ret = 0;
+ else
+ ret = s->status;
+ qemu_irq_lower(s->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].bs && !bus->ifs[1].bs) ||
+ (s != bus->ifs && !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;
+}
+
+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->ifs[0].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->ifs[0].cmd & IDE_CMD_RESET) &&
+ !(val & IDE_CMD_RESET)) {
+ /* high to low */
+ for(i = 0;i < 2; i++) {
+ s = &bus->ifs[i];
+ if (s->is_cdrom)
+ s->status = 0x00; /* NOTE: READY is _not_ set */
+ else
+ s->status = READY_STAT | SEEK_STAT;
+ ide_set_signature(s);
+ }
+ }
+
+ bus->ifs[0].cmd = val;
+ bus->ifs[1].cmd = val;
+}
+
+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 */
+ if (!(s->status & DRQ_STAT))
+ return;
+
+ 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);
+}
+
+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 */
+ if (!(s->status & DRQ_STAT))
+ return 0;
+
+ 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;
+}
+
+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 */
+ if (!(s->status & DRQ_STAT))
+ return;
+
+ 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);
+}
+
+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 */
+ if (!(s->status & DRQ_STAT))
+ return 0;
+
+ 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;
+}
+
+void ide_reset(IDEState *s)
+{
+ IDEBus *bus = s->bus;
+
+ if (s->is_cf)
+ s->mult_sectors = 0;
+ else
+ s->mult_sectors = MAX_MULT_SECTORS;
+ bus->unit = s->unit;
+ s->select = 0xa0;
+ s->status = READY_STAT | SEEK_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);
+ s->media_changed = 0;
+}
+
+void ide_init2(IDEBus *bus, BlockDriverState *hd0, BlockDriverState *hd1,
+ qemu_irq irq)
+{
+ IDEState *s;
+ static int drive_serial = 1;
+ int i, cylinders, heads, secs;
+ uint64_t nb_sectors;
+
+ for(i = 0; i < 2; i++) {
+ s = bus->ifs + i;
+ s->bus = bus;
+ s->unit = i;
+ s->bs = (i == 0) ? hd0 : hd1;
+ s->io_buffer = qemu_blockalign(s->bs, IDE_DMA_BUF_SECTORS*512 + 4);
+ if (s->bs) {
+ bdrv_get_geometry(s->bs, &nb_sectors);
+ bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs);
+ s->cylinders = cylinders;
+ s->heads = heads;
+ s->sectors = secs;
+ s->nb_sectors = nb_sectors;
+ /* 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;
+ s->smart_selftest_data = qemu_blockalign(s->bs, 512);
+ 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++;
+ strncpy(s->drive_serial_str, drive_get_serial(s->bs),
+ sizeof(s->drive_serial_str));
+ if (strlen(s->drive_serial_str) == 0)
+ snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
+ "QM%05d", s->drive_serial);
+ s->irq = irq;
+ s->sector_write_timer = qemu_new_timer(vm_clock,
+ ide_sector_write_timer_cb, s);
+ ide_reset(s);
+ }
+}
+
+void ide_init_ioport(IDEBus *bus, int iobase, int iobase2)
+{
+ register_ioport_write(iobase, 8, 1, ide_ioport_write, bus);
+ register_ioport_read(iobase, 8, 1, ide_ioport_read, bus);
+ if (iobase2) {
+ register_ioport_read(iobase2, 1, 1, ide_status_read, bus);
+ register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus);
+ }
+
+ /* data ports */
+ register_ioport_write(iobase, 2, 2, ide_data_writew, bus);
+ register_ioport_read(iobase, 2, 2, ide_data_readw, bus);
+ register_ioport_write(iobase, 4, 4, ide_data_writel, bus);
+ register_ioport_read(iobase, 4, 4, ide_data_readl, bus);
+}
+
+/* save per IDE drive data */
+void ide_save(QEMUFile* f, IDEState *s)
+{
+ qemu_put_be32(f, s->mult_sectors);
+ qemu_put_be32(f, s->identify_set);
+ if (s->identify_set) {
+ qemu_put_buffer(f, (const uint8_t *)s->identify_data, 512);
+ }
+ qemu_put_8s(f, &s->feature);
+ qemu_put_8s(f, &s->error);
+ qemu_put_be32s(f, &s->nsector);
+ qemu_put_8s(f, &s->sector);
+ qemu_put_8s(f, &s->lcyl);
+ qemu_put_8s(f, &s->hcyl);
+ qemu_put_8s(f, &s->hob_feature);
+ qemu_put_8s(f, &s->hob_nsector);
+ qemu_put_8s(f, &s->hob_sector);
+ qemu_put_8s(f, &s->hob_lcyl);
+ qemu_put_8s(f, &s->hob_hcyl);
+ qemu_put_8s(f, &s->select);
+ qemu_put_8s(f, &s->status);
+ qemu_put_8s(f, &s->lba48);
+
+ qemu_put_8s(f, &s->sense_key);
+ qemu_put_8s(f, &s->asc);
+ qemu_put_8s(f, &s->cdrom_changed);
+ /* XXX: if a transfer is pending, we do not save it yet */
+}
+
+/* load per IDE drive data */
+void ide_load(QEMUFile* f, IDEState *s, int version_id)
+{
+ s->mult_sectors=qemu_get_be32(f);
+ s->identify_set=qemu_get_be32(f);
+ if (s->identify_set) {
+ qemu_get_buffer(f, (uint8_t *)s->identify_data, 512);
+ }
+ qemu_get_8s(f, &s->feature);
+ qemu_get_8s(f, &s->error);
+ qemu_get_be32s(f, &s->nsector);
+ qemu_get_8s(f, &s->sector);
+ qemu_get_8s(f, &s->lcyl);
+ qemu_get_8s(f, &s->hcyl);
+ qemu_get_8s(f, &s->hob_feature);
+ qemu_get_8s(f, &s->hob_nsector);
+ qemu_get_8s(f, &s->hob_sector);
+ qemu_get_8s(f, &s->hob_lcyl);
+ qemu_get_8s(f, &s->hob_hcyl);
+ qemu_get_8s(f, &s->select);
+ qemu_get_8s(f, &s->status);
+ qemu_get_8s(f, &s->lba48);
+
+ qemu_get_8s(f, &s->sense_key);
+ qemu_get_8s(f, &s->asc);
+ if (version_id == 3) {
+ qemu_get_8s(f, &s->cdrom_changed);
+ } else {
+ if (s->sense_key == SENSE_UNIT_ATTENTION &&
+ s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED)
+ s->cdrom_changed = 1;
+ }
+ /* XXX: if a transfer is pending, we do not save it yet */
+}
+
+void idebus_save(QEMUFile* f, IDEBus *bus)
+{
+ IDEState *s = idebus_active_if(bus);
+ qemu_put_8s(f, &s->cmd);
+ qemu_put_8s(f, &bus->unit);
+}
+
+void idebus_load(QEMUFile* f, IDEBus *bus, int version_id)
+{
+ IDEState *s;
+ uint8_t cmd;
+
+ qemu_get_8s(f, &cmd);
+ qemu_get_8s(f, &bus->unit);
+ s = idebus_active_if(bus);
+ s->cmd = cmd;
+}
+
+/***********************************************************/
+/* PCI IDE definitions */
+
+static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb)
+{
+ BMDMAState *bm = s->bus->bmdma;
+ if(!bm)
+ return;
+ bm->unit = s->unit;
+ bm->dma_cb = dma_cb;
+ bm->cur_prd_last = 0;
+ bm->cur_prd_addr = 0;
+ bm->cur_prd_len = 0;
+ bm->sector_num = ide_get_sector(s);
+ bm->nsector = s->nsector;
+ if (bm->status & BM_STATUS_DMAING) {
+ bm->dma_cb(bm, 0);
+ }
+}
+
+static void ide_dma_restart(IDEState *s)
+{
+ BMDMAState *bm = s->bus->bmdma;
+ ide_set_sector(s, bm->sector_num);
+ s->io_buffer_index = 0;
+ s->io_buffer_size = 0;
+ s->nsector = bm->nsector;
+ bm->cur_addr = bm->addr;
+ bm->dma_cb = ide_write_dma_cb;
+ ide_dma_start(s, bm->dma_cb);
+}
+
+void ide_dma_cancel(BMDMAState *bm)
+{
+ if (bm->status & BM_STATUS_DMAING) {
+ bm->status &= ~BM_STATUS_DMAING;
+ /* cancel DMA request */
+ bm->unit = -1;
+ bm->dma_cb = NULL;
+ if (bm->aiocb) {
+#ifdef DEBUG_AIO
+ printf("aio_cancel\n");
+#endif
+ bdrv_aio_cancel(bm->aiocb);
+ bm->aiocb = NULL;
+ }
+ }
+}
+
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-12 23:52:08 +0200