Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2763 lines
83 KiB
C
2763 lines
83 KiB
C
/*
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* QEMU IDE disk and CD/DVD-ROM Emulator
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2006 Openedhand Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <hw/hw.h>
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#include <hw/pc.h>
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#include <hw/pci.h>
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#include <hw/scsi.h>
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#include <hw/sh.h>
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#include "block.h"
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#include "block_int.h"
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#include "qemu-timer.h"
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#include "sysemu.h"
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#include "dma.h"
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#include <hw/ide/internal.h>
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static int smart_attributes[][5] = {
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/* id, flags, val, wrst, thrsh */
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{ 0x01, 0x03, 0x64, 0x64, 0x06}, /* raw read */
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{ 0x03, 0x03, 0x64, 0x64, 0x46}, /* spin up */
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{ 0x04, 0x02, 0x64, 0x64, 0x14}, /* start stop count */
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{ 0x05, 0x03, 0x64, 0x64, 0x36}, /* remapped sectors */
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{ 0x00, 0x00, 0x00, 0x00, 0x00}
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};
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/* XXX: DVDs that could fit on a CD will be reported as a CD */
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static inline int media_present(IDEState *s)
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{
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return (s->nb_sectors > 0);
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}
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static inline int media_is_dvd(IDEState *s)
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{
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return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS);
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}
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static inline int media_is_cd(IDEState *s)
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{
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return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS);
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}
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static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb);
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static void ide_dma_restart(IDEState *s);
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static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret);
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static void padstr(char *str, const char *src, int len)
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{
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int i, v;
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for(i = 0; i < len; i++) {
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if (*src)
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v = *src++;
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else
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v = ' ';
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str[i^1] = v;
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}
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}
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static void padstr8(uint8_t *buf, int buf_size, const char *src)
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{
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int i;
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for(i = 0; i < buf_size; i++) {
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if (*src)
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buf[i] = *src++;
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else
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buf[i] = ' ';
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}
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}
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static void put_le16(uint16_t *p, unsigned int v)
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{
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*p = cpu_to_le16(v);
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}
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static void ide_identify(IDEState *s)
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{
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uint16_t *p;
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unsigned int oldsize;
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if (s->identify_set) {
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memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
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return;
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}
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memset(s->io_buffer, 0, 512);
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p = (uint16_t *)s->io_buffer;
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put_le16(p + 0, 0x0040);
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put_le16(p + 1, s->cylinders);
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put_le16(p + 3, s->heads);
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put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */
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put_le16(p + 5, 512); /* XXX: retired, remove ? */
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put_le16(p + 6, s->sectors);
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 20, 3); /* XXX: retired, remove ? */
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put_le16(p + 21, 512); /* cache size in sectors */
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put_le16(p + 22, 4); /* ecc bytes */
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padstr((char *)(p + 23), QEMU_VERSION, 8); /* firmware version */
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padstr((char *)(p + 27), "QEMU HARDDISK", 40); /* model */
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#if MAX_MULT_SECTORS > 1
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put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
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#endif
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put_le16(p + 48, 1); /* dword I/O */
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put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */
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put_le16(p + 51, 0x200); /* PIO transfer cycle */
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put_le16(p + 52, 0x200); /* DMA transfer cycle */
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put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */
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put_le16(p + 54, s->cylinders);
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put_le16(p + 55, s->heads);
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put_le16(p + 56, s->sectors);
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oldsize = s->cylinders * s->heads * s->sectors;
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put_le16(p + 57, oldsize);
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put_le16(p + 58, oldsize >> 16);
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if (s->mult_sectors)
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put_le16(p + 59, 0x100 | s->mult_sectors);
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put_le16(p + 60, s->nb_sectors);
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put_le16(p + 61, s->nb_sectors >> 16);
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put_le16(p + 62, 0x07); /* single word dma0-2 supported */
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put_le16(p + 63, 0x07); /* mdma0-2 supported */
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put_le16(p + 65, 120);
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put_le16(p + 66, 120);
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put_le16(p + 67, 120);
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put_le16(p + 68, 120);
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put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */
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put_le16(p + 81, 0x16); /* conforms to ata5 */
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/* 14=NOP supported, 0=SMART supported */
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put_le16(p + 82, (1 << 14) | 1);
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/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
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put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
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/* 14=set to 1, 1=SMART self test, 0=SMART error logging */
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put_le16(p + 84, (1 << 14) | 0);
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/* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */
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if (bdrv_enable_write_cache(s->bs))
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put_le16(p + 85, (1 << 14) | (1 << 5) | 1);
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else
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put_le16(p + 85, (1 << 14) | 1);
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/* 13=flush_cache_ext,12=flush_cache,10=lba48 */
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put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10));
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/* 14=set to 1, 1=smart self test, 0=smart error logging */
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put_le16(p + 87, (1 << 14) | 0);
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put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
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put_le16(p + 93, 1 | (1 << 14) | 0x2000);
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put_le16(p + 100, s->nb_sectors);
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put_le16(p + 101, s->nb_sectors >> 16);
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put_le16(p + 102, s->nb_sectors >> 32);
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put_le16(p + 103, s->nb_sectors >> 48);
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memcpy(s->identify_data, p, sizeof(s->identify_data));
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s->identify_set = 1;
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}
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static void ide_atapi_identify(IDEState *s)
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{
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uint16_t *p;
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if (s->identify_set) {
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memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data));
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return;
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}
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memset(s->io_buffer, 0, 512);
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p = (uint16_t *)s->io_buffer;
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/* Removable CDROM, 50us response, 12 byte packets */
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put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 20, 3); /* buffer type */
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put_le16(p + 21, 512); /* cache size in sectors */
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put_le16(p + 22, 4); /* ecc bytes */
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padstr((char *)(p + 23), QEMU_VERSION, 8); /* firmware version */
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padstr((char *)(p + 27), "QEMU DVD-ROM", 40); /* model */
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put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */
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#ifdef USE_DMA_CDROM
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put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
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put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
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put_le16(p + 62, 7); /* single word dma0-2 supported */
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put_le16(p + 63, 7); /* mdma0-2 supported */
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put_le16(p + 64, 0x3f); /* PIO modes supported */
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#else
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put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */
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put_le16(p + 53, 3); /* words 64-70, 54-58 valid */
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put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */
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put_le16(p + 64, 1); /* PIO modes */
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#endif
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put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */
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put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */
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put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */
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put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */
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put_le16(p + 71, 30); /* in ns */
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put_le16(p + 72, 30); /* in ns */
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put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */
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#ifdef USE_DMA_CDROM
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put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */
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#endif
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memcpy(s->identify_data, p, sizeof(s->identify_data));
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s->identify_set = 1;
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}
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static void ide_cfata_identify(IDEState *s)
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{
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uint16_t *p;
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uint32_t cur_sec;
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p = (uint16_t *) s->identify_data;
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if (s->identify_set)
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goto fill_buffer;
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memset(p, 0, sizeof(s->identify_data));
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cur_sec = s->cylinders * s->heads * s->sectors;
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put_le16(p + 0, 0x848a); /* CF Storage Card signature */
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put_le16(p + 1, s->cylinders); /* Default cylinders */
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put_le16(p + 3, s->heads); /* Default heads */
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put_le16(p + 6, s->sectors); /* Default sectors per track */
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put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
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put_le16(p + 8, s->nb_sectors); /* Sectors per card */
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padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
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put_le16(p + 22, 0x0004); /* ECC bytes */
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padstr((char *) (p + 23), QEMU_VERSION, 8); /* Firmware Revision */
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padstr((char *) (p + 27), "QEMU MICRODRIVE", 40);/* Model number */
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#if MAX_MULT_SECTORS > 1
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put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS);
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#else
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put_le16(p + 47, 0x0000);
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#endif
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put_le16(p + 49, 0x0f00); /* Capabilities */
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put_le16(p + 51, 0x0002); /* PIO cycle timing mode */
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put_le16(p + 52, 0x0001); /* DMA cycle timing mode */
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put_le16(p + 53, 0x0003); /* Translation params valid */
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put_le16(p + 54, s->cylinders); /* Current cylinders */
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put_le16(p + 55, s->heads); /* Current heads */
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put_le16(p + 56, s->sectors); /* Current sectors */
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put_le16(p + 57, cur_sec); /* Current capacity */
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put_le16(p + 58, cur_sec >> 16); /* Current capacity */
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if (s->mult_sectors) /* Multiple sector setting */
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put_le16(p + 59, 0x100 | s->mult_sectors);
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put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */
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put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */
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put_le16(p + 63, 0x0203); /* Multiword DMA capability */
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put_le16(p + 64, 0x0001); /* Flow Control PIO support */
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put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */
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put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */
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put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */
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put_le16(p + 82, 0x400c); /* Command Set supported */
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put_le16(p + 83, 0x7068); /* Command Set supported */
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put_le16(p + 84, 0x4000); /* Features supported */
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put_le16(p + 85, 0x000c); /* Command Set enabled */
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put_le16(p + 86, 0x7044); /* Command Set enabled */
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put_le16(p + 87, 0x4000); /* Features enabled */
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put_le16(p + 91, 0x4060); /* Current APM level */
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put_le16(p + 129, 0x0002); /* Current features option */
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put_le16(p + 130, 0x0005); /* Reassigned sectors */
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put_le16(p + 131, 0x0001); /* Initial power mode */
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put_le16(p + 132, 0x0000); /* User signature */
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put_le16(p + 160, 0x8100); /* Power requirement */
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put_le16(p + 161, 0x8001); /* CF command set */
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s->identify_set = 1;
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fill_buffer:
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memcpy(s->io_buffer, p, sizeof(s->identify_data));
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}
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static void ide_set_signature(IDEState *s)
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{
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s->select &= 0xf0; /* clear head */
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/* put signature */
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s->nsector = 1;
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s->sector = 1;
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if (s->is_cdrom) {
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s->lcyl = 0x14;
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s->hcyl = 0xeb;
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} else if (s->bs) {
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s->lcyl = 0;
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s->hcyl = 0;
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} else {
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s->lcyl = 0xff;
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s->hcyl = 0xff;
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}
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}
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static inline void ide_abort_command(IDEState *s)
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{
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s->status = READY_STAT | ERR_STAT;
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s->error = ABRT_ERR;
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}
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static inline void ide_dma_submit_check(IDEState *s,
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BlockDriverCompletionFunc *dma_cb, BMDMAState *bm)
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{
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if (bm->aiocb)
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return;
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dma_cb(bm, -1);
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}
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/* prepare data transfer and tell what to do after */
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static void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
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EndTransferFunc *end_transfer_func)
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{
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s->end_transfer_func = end_transfer_func;
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s->data_ptr = buf;
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s->data_end = buf + size;
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if (!(s->status & ERR_STAT))
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s->status |= DRQ_STAT;
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}
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static void ide_transfer_stop(IDEState *s)
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{
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s->end_transfer_func = ide_transfer_stop;
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s->data_ptr = s->io_buffer;
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s->data_end = s->io_buffer;
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s->status &= ~DRQ_STAT;
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}
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int64_t ide_get_sector(IDEState *s)
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{
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int64_t sector_num;
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if (s->select & 0x40) {
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/* lba */
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if (!s->lba48) {
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sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) |
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(s->lcyl << 8) | s->sector;
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} else {
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sector_num = ((int64_t)s->hob_hcyl << 40) |
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((int64_t) s->hob_lcyl << 32) |
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((int64_t) s->hob_sector << 24) |
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((int64_t) s->hcyl << 16) |
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((int64_t) s->lcyl << 8) | s->sector;
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}
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} else {
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sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
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(s->select & 0x0f) * s->sectors + (s->sector - 1);
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}
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return sector_num;
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}
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void ide_set_sector(IDEState *s, int64_t sector_num)
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{
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unsigned int cyl, r;
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if (s->select & 0x40) {
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if (!s->lba48) {
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s->select = (s->select & 0xf0) | (sector_num >> 24);
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s->hcyl = (sector_num >> 16);
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s->lcyl = (sector_num >> 8);
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s->sector = (sector_num);
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} else {
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s->sector = sector_num;
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s->lcyl = sector_num >> 8;
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s->hcyl = sector_num >> 16;
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s->hob_sector = sector_num >> 24;
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s->hob_lcyl = sector_num >> 32;
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s->hob_hcyl = sector_num >> 40;
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}
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} else {
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cyl = sector_num / (s->heads * s->sectors);
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r = sector_num % (s->heads * s->sectors);
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s->hcyl = cyl >> 8;
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s->lcyl = cyl;
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s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f);
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s->sector = (r % s->sectors) + 1;
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}
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}
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static void ide_rw_error(IDEState *s) {
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ide_abort_command(s);
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ide_set_irq(s->bus);
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}
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static void ide_sector_read(IDEState *s)
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{
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int64_t sector_num;
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int ret, n;
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s->status = READY_STAT | SEEK_STAT;
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s->error = 0; /* not needed by IDE spec, but needed by Windows */
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sector_num = ide_get_sector(s);
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n = s->nsector;
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if (n == 0) {
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/* no more sector to read from disk */
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ide_transfer_stop(s);
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} else {
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#if defined(DEBUG_IDE)
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printf("read sector=%" PRId64 "\n", sector_num);
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#endif
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if (n > s->req_nb_sectors)
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n = s->req_nb_sectors;
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ret = bdrv_read(s->bs, sector_num, s->io_buffer, n);
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if (ret != 0) {
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ide_rw_error(s);
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return;
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}
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ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
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ide_set_irq(s->bus);
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|
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->bus);
|
|
}
|
|
|
|
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->bus);
|
|
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->bus);
|
|
}
|
|
|
|
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) + (get_ticks_per_sec() / 1000));
|
|
} else
|
|
#endif
|
|
{
|
|
ide_set_irq(s->bus);
|
|
}
|
|
}
|
|
|
|
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->bus);
|
|
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->bus);
|
|
}
|
|
|
|
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->bus);
|
|
}
|
|
|
|
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->bus);
|
|
}
|
|
|
|
static void ide_flush_cb(void *opaque, int ret)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
/* XXX: how do we signal I/O errors here? */
|
|
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
}
|
|
|
|
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->bus);
|
|
#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->bus);
|
|
#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->bus);
|
|
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->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;
|
|
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->bus);
|
|
break;
|
|
case WIN_SPECIFY:
|
|
case WIN_RECAL:
|
|
s->error = 0;
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
break;
|
|
case WIN_CHECKPOWERMODE1:
|
|
case WIN_CHECKPOWERMODE2:
|
|
s->nsector = 0xff; /* device active or idle */
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
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->bus);
|
|
break;
|
|
case 0x03: { /* set transfer mode */
|
|
uint8_t val = s->nsector & 0x07;
|
|
uint16_t *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;
|
|
}
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
break;
|
|
}
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
break;
|
|
case WIN_FLUSH_CACHE:
|
|
case WIN_FLUSH_CACHE_EXT:
|
|
if (s->bs)
|
|
bdrv_aio_flush(s->bs, ide_flush_cb, s);
|
|
else
|
|
ide_flush_cb(s, 0);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
break;
|
|
case SMART_ENABLE:
|
|
s->smart_enabled = 1;
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_irq(s->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
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->bus);
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
break;
|
|
default:
|
|
goto abort_cmd;
|
|
}
|
|
break;
|
|
default:
|
|
abort_cmd:
|
|
ide_abort_command(s);
|
|
ide_set_irq(s->bus);
|
|
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(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].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->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->is_cdrom)
|
|
s->status = 0x00; /* NOTE: READY is _not_ set */
|
|
else
|
|
s->status = READY_STAT | SEEK_STAT;
|
|
ide_set_signature(s);
|
|
}
|
|
}
|
|
|
|
bus->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;
|
|
}
|
|
|
|
static void ide_reset(IDEState *s)
|
|
{
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: reset\n");
|
|
#endif
|
|
if (s->is_cf)
|
|
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;
|
|
/* 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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void ide_init_drive(IDEState *s, DriveInfo *dinfo)
|
|
{
|
|
int cylinders, heads, secs;
|
|
uint64_t nb_sectors;
|
|
|
|
if (dinfo && dinfo->bdrv) {
|
|
s->bs = dinfo->bdrv;
|
|
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;
|
|
if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
|
s->is_cdrom = 1;
|
|
bdrv_set_change_cb(s->bs, cdrom_change_cb, s);
|
|
}
|
|
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);
|
|
ide_reset(s);
|
|
}
|
|
|
|
void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1,
|
|
qemu_irq irq)
|
|
{
|
|
IDEState *s;
|
|
static int drive_serial = 1;
|
|
int i;
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
s = bus->ifs + i;
|
|
s->bus = bus;
|
|
s->unit = i;
|
|
s->drive_serial = drive_serial++;
|
|
s->io_buffer = qemu_blockalign(s->bs, IDE_DMA_BUF_SECTORS*512 + 4);
|
|
s->smart_selftest_data = qemu_blockalign(s->bs, 512);
|
|
s->sector_write_timer = qemu_new_timer(vm_clock,
|
|
ide_sector_write_timer_cb, s);
|
|
if (i == 0)
|
|
ide_init_drive(s, hd0);
|
|
if (i == 1)
|
|
ide_init_drive(s, hd1);
|
|
}
|
|
bus->irq = irq;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static bool is_identify_set(void *opaque, int version_id)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
return s->identify_set != 0;
|
|
}
|
|
|
|
static int ide_drive_post_load(void *opaque, int version_id)
|
|
{
|
|
IDEState *s = opaque;
|
|
|
|
if (version_id < 3) {
|
|
if (s->sense_key == SENSE_UNIT_ATTENTION &&
|
|
s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
|
|
s->cdrom_changed = 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const VMStateDescription vmstate_ide_drive = {
|
|
.name = "ide_drive",
|
|
.version_id = 3,
|
|
.minimum_version_id = 0,
|
|
.minimum_version_id_old = 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),
|
|
/* XXX: if a transfer is pending, we do not save it yet */
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
const VMStateDescription vmstate_ide_bus = {
|
|
.name = "ide_bus",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.minimum_version_id_old = 1,
|
|
.fields = (VMStateField []) {
|
|
VMSTATE_UINT8(cmd, IDEBus),
|
|
VMSTATE_UINT8(unit, IDEBus),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
/***********************************************************/
|
|
/* 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ide_dma_reset(BMDMAState *bm)
|
|
{
|
|
#ifdef DEBUG_IDE
|
|
printf("ide: dma_reset\n");
|
|
#endif
|
|
ide_dma_cancel(bm);
|
|
bm->cmd = 0;
|
|
bm->status = 0;
|
|
bm->addr = 0;
|
|
bm->cur_addr = 0;
|
|
bm->cur_prd_last = 0;
|
|
bm->cur_prd_addr = 0;
|
|
bm->cur_prd_len = 0;
|
|
bm->sector_num = 0;
|
|
bm->nsector = 0;
|
|
}
|