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/*
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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 "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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|
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#include <hw/ide/internal.h> |
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|
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#define IDE_PAGE_SIZE 4096 |
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|
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static const 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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|
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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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|
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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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|
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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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|
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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, int is_read); |
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static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret); |
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static int ide_handle_rw_error(IDEState *s, int error, int op); |
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|
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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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|
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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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|
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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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|
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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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IDEDevice *dev; |
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|
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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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|
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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), s->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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dev = s->unit ? s->bus->slave : s->bus->master; |
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if (dev && dev->conf.physical_block_size)
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put_le16(p + 106, 0x6000 | get_physical_block_exp(&dev->conf)); |
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|
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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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|
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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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|
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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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|
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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), s->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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|
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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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|
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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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|
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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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|
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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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|
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memset(p, 0, sizeof(s->identify_data)); |
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|
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cur_sec = s->cylinders * s->heads * s->sectors; |
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|
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put_le16(p + 0, 0x848a); /* CF Storage Card signature */ |
| 239 |
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), s->version, 8); /* Firmware Revision */ |
| 247 |
padstr((char *) (p + 27), "QEMU MICRODRIVE", 40);/* Model number */ |
| 248 |
#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); |
| 252 |
#endif
|
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put_le16(p + 49, 0x0f00); /* Capabilities */ |
| 254 |
put_le16(p + 51, 0x0002); /* PIO cycle timing mode */ |
| 255 |
put_le16(p + 52, 0x0001); /* DMA cycle timing mode */ |
| 256 |
put_le16(p + 53, 0x0003); /* Translation params valid */ |
| 257 |
put_le16(p + 54, s->cylinders); /* Current cylinders */ |
| 258 |
put_le16(p + 55, s->heads); /* Current heads */ |
| 259 |
put_le16(p + 56, s->sectors); /* Current sectors */ |
| 260 |
put_le16(p + 57, cur_sec); /* Current capacity */ |
| 261 |
put_le16(p + 58, cur_sec >> 16); /* Current capacity */ |
| 262 |
if (s->mult_sectors) /* Multiple sector setting */ |
| 263 |
put_le16(p + 59, 0x100 | s->mult_sectors); |
| 264 |
put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */ |
| 265 |
put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */ |
| 266 |
put_le16(p + 63, 0x0203); /* Multiword DMA capability */ |
| 267 |
put_le16(p + 64, 0x0001); /* Flow Control PIO support */ |
| 268 |
put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */ |
| 269 |
put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */ |
| 270 |
put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */ |
| 271 |
put_le16(p + 82, 0x400c); /* Command Set supported */ |
| 272 |
put_le16(p + 83, 0x7068); /* Command Set supported */ |
| 273 |
put_le16(p + 84, 0x4000); /* Features supported */ |
| 274 |
put_le16(p + 85, 0x000c); /* Command Set enabled */ |
| 275 |
put_le16(p + 86, 0x7044); /* Command Set enabled */ |
| 276 |
put_le16(p + 87, 0x4000); /* Features enabled */ |
| 277 |
put_le16(p + 91, 0x4060); /* Current APM level */ |
| 278 |
put_le16(p + 129, 0x0002); /* Current features option */ |
| 279 |
put_le16(p + 130, 0x0005); /* Reassigned sectors */ |
| 280 |
put_le16(p + 131, 0x0001); /* Initial power mode */ |
| 281 |
put_le16(p + 132, 0x0000); /* User signature */ |
| 282 |
put_le16(p + 160, 0x8100); /* Power requirement */ |
| 283 |
put_le16(p + 161, 0x8001); /* CF command set */ |
| 284 |
|
| 285 |
s->identify_set = 1;
|
| 286 |
|
| 287 |
fill_buffer:
|
| 288 |
memcpy(s->io_buffer, p, sizeof(s->identify_data));
|
| 289 |
} |
| 290 |
|
| 291 |
static void ide_set_signature(IDEState *s) |
| 292 |
{
|
| 293 |
s->select &= 0xf0; /* clear head */ |
| 294 |
/* put signature */
|
| 295 |
s->nsector = 1;
|
| 296 |
s->sector = 1;
|
| 297 |
if (s->is_cdrom) {
|
| 298 |
s->lcyl = 0x14;
|
| 299 |
s->hcyl = 0xeb;
|
| 300 |
} else if (s->bs) { |
| 301 |
s->lcyl = 0;
|
| 302 |
s->hcyl = 0;
|
| 303 |
} else {
|
| 304 |
s->lcyl = 0xff;
|
| 305 |
s->hcyl = 0xff;
|
| 306 |
} |
| 307 |
} |
| 308 |
|
| 309 |
static inline void ide_abort_command(IDEState *s) |
| 310 |
{
|
| 311 |
s->status = READY_STAT | ERR_STAT; |
| 312 |
s->error = ABRT_ERR; |
| 313 |
} |
| 314 |
|
| 315 |
static inline void ide_dma_submit_check(IDEState *s, |
| 316 |
BlockDriverCompletionFunc *dma_cb, BMDMAState *bm) |
| 317 |
{
|
| 318 |
if (bm->aiocb)
|
| 319 |
return;
|
| 320 |
dma_cb(bm, -1);
|
| 321 |
} |
| 322 |
|
| 323 |
/* prepare data transfer and tell what to do after */
|
| 324 |
static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, |
| 325 |
EndTransferFunc *end_transfer_func) |
| 326 |
{
|
| 327 |
s->end_transfer_func = end_transfer_func; |
| 328 |
s->data_ptr = buf; |
| 329 |
s->data_end = buf + size; |
| 330 |
if (!(s->status & ERR_STAT))
|
| 331 |
s->status |= DRQ_STAT; |
| 332 |
} |
| 333 |
|
| 334 |
static void ide_transfer_stop(IDEState *s) |
| 335 |
{
|
| 336 |
s->end_transfer_func = ide_transfer_stop; |
| 337 |
s->data_ptr = s->io_buffer; |
| 338 |
s->data_end = s->io_buffer; |
| 339 |
s->status &= ~DRQ_STAT; |
| 340 |
} |
| 341 |
|
| 342 |
int64_t ide_get_sector(IDEState *s) |
| 343 |
{
|
| 344 |
int64_t sector_num; |
| 345 |
if (s->select & 0x40) { |
| 346 |
/* lba */
|
| 347 |
if (!s->lba48) {
|
| 348 |
sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | |
| 349 |
(s->lcyl << 8) | s->sector;
|
| 350 |
} else {
|
| 351 |
sector_num = ((int64_t)s->hob_hcyl << 40) |
|
| 352 |
((int64_t) s->hob_lcyl << 32) |
|
| 353 |
((int64_t) s->hob_sector << 24) |
|
| 354 |
((int64_t) s->hcyl << 16) |
|
| 355 |
((int64_t) s->lcyl << 8) | s->sector;
|
| 356 |
} |
| 357 |
} else {
|
| 358 |
sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors +
|
| 359 |
(s->select & 0x0f) * s->sectors + (s->sector - 1); |
| 360 |
} |
| 361 |
return sector_num;
|
| 362 |
} |
| 363 |
|
| 364 |
void ide_set_sector(IDEState *s, int64_t sector_num)
|
| 365 |
{
|
| 366 |
unsigned int cyl, r; |
| 367 |
if (s->select & 0x40) { |
| 368 |
if (!s->lba48) {
|
| 369 |
s->select = (s->select & 0xf0) | (sector_num >> 24); |
| 370 |
s->hcyl = (sector_num >> 16);
|
| 371 |
s->lcyl = (sector_num >> 8);
|
| 372 |
s->sector = (sector_num); |
| 373 |
} else {
|
| 374 |
s->sector = sector_num; |
| 375 |
s->lcyl = sector_num >> 8;
|
| 376 |
s->hcyl = sector_num >> 16;
|
| 377 |
s->hob_sector = sector_num >> 24;
|
| 378 |
s->hob_lcyl = sector_num >> 32;
|
| 379 |
s->hob_hcyl = sector_num >> 40;
|
| 380 |
} |
| 381 |
} else {
|
| 382 |
cyl = sector_num / (s->heads * s->sectors); |
| 383 |
r = sector_num % (s->heads * s->sectors); |
| 384 |
s->hcyl = cyl >> 8;
|
| 385 |
s->lcyl = cyl; |
| 386 |
s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f); |
| 387 |
s->sector = (r % s->sectors) + 1;
|
| 388 |
} |
| 389 |
} |
| 390 |
|
| 391 |
static void ide_rw_error(IDEState *s) { |
| 392 |
ide_abort_command(s); |
| 393 |
ide_set_irq(s->bus); |
| 394 |
} |
| 395 |
|
| 396 |
static void ide_sector_read(IDEState *s) |
| 397 |
{
|
| 398 |
int64_t sector_num; |
| 399 |
int ret, n;
|
| 400 |
|
| 401 |
s->status = READY_STAT | SEEK_STAT; |
| 402 |
s->error = 0; /* not needed by IDE spec, but needed by Windows */ |
| 403 |
sector_num = ide_get_sector(s); |
| 404 |
n = s->nsector; |
| 405 |
if (n == 0) { |
| 406 |
/* no more sector to read from disk */
|
| 407 |
ide_transfer_stop(s); |
| 408 |
} else {
|
| 409 |
#if defined(DEBUG_IDE)
|
| 410 |
printf("read sector=%" PRId64 "\n", sector_num); |
| 411 |
#endif
|
| 412 |
if (n > s->req_nb_sectors)
|
| 413 |
n = s->req_nb_sectors; |
| 414 |
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n); |
| 415 |
if (ret != 0) { |
| 416 |
if (ide_handle_rw_error(s, -ret,
|
| 417 |
BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ)) |
| 418 |
{
|
| 419 |
return;
|
| 420 |
} |
| 421 |
} |
| 422 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read);
|
| 423 |
ide_set_irq(s->bus); |
| 424 |
ide_set_sector(s, sector_num + n); |
| 425 |
s->nsector -= n; |
| 426 |
} |
| 427 |
} |
| 428 |
|
| 429 |
|
| 430 |
/* return 0 if buffer completed */
|
| 431 |
static int dma_buf_prepare(BMDMAState *bm, int is_write) |
| 432 |
{
|
| 433 |
IDEState *s = bmdma_active_if(bm); |
| 434 |
struct {
|
| 435 |
uint32_t addr; |
| 436 |
uint32_t size; |
| 437 |
} prd; |
| 438 |
int l, len;
|
| 439 |
|
| 440 |
qemu_sglist_init(&s->sg, s->nsector / (IDE_PAGE_SIZE / 512) + 1); |
| 441 |
s->io_buffer_size = 0;
|
| 442 |
for(;;) {
|
| 443 |
if (bm->cur_prd_len == 0) { |
| 444 |
/* end of table (with a fail safe of one page) */
|
| 445 |
if (bm->cur_prd_last ||
|
| 446 |
(bm->cur_addr - bm->addr) >= IDE_PAGE_SIZE) |
| 447 |
return s->io_buffer_size != 0; |
| 448 |
cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8);
|
| 449 |
bm->cur_addr += 8;
|
| 450 |
prd.addr = le32_to_cpu(prd.addr); |
| 451 |
prd.size = le32_to_cpu(prd.size); |
| 452 |
len = prd.size & 0xfffe;
|
| 453 |
if (len == 0) |
| 454 |
len = 0x10000;
|
| 455 |
bm->cur_prd_len = len; |
| 456 |
bm->cur_prd_addr = prd.addr; |
| 457 |
bm->cur_prd_last = (prd.size & 0x80000000);
|
| 458 |
} |
| 459 |
l = bm->cur_prd_len; |
| 460 |
if (l > 0) { |
| 461 |
qemu_sglist_add(&s->sg, bm->cur_prd_addr, l); |
| 462 |
bm->cur_prd_addr += l; |
| 463 |
bm->cur_prd_len -= l; |
| 464 |
s->io_buffer_size += l; |
| 465 |
} |
| 466 |
} |
| 467 |
return 1; |
| 468 |
} |
| 469 |
|
| 470 |
static void dma_buf_commit(IDEState *s, int is_write) |
| 471 |
{
|
| 472 |
qemu_sglist_destroy(&s->sg); |
| 473 |
} |
| 474 |
|
| 475 |
void ide_dma_error(IDEState *s)
|
| 476 |
{
|
| 477 |
ide_transfer_stop(s); |
| 478 |
s->error = ABRT_ERR; |
| 479 |
s->status = READY_STAT | ERR_STAT; |
| 480 |
ide_set_irq(s->bus); |
| 481 |
} |
| 482 |
|
| 483 |
static int ide_handle_rw_error(IDEState *s, int error, int op) |
| 484 |
{
|
| 485 |
int is_read = (op & BM_STATUS_RETRY_READ);
|
| 486 |
BlockInterfaceErrorAction action = drive_get_on_error(s->bs, is_read); |
| 487 |
|
| 488 |
if (action == BLOCK_ERR_IGNORE) {
|
| 489 |
bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read); |
| 490 |
return 0; |
| 491 |
} |
| 492 |
|
| 493 |
if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
|
| 494 |
|| action == BLOCK_ERR_STOP_ANY) {
|
| 495 |
s->bus->bmdma->unit = s->unit; |
| 496 |
s->bus->bmdma->status |= op; |
| 497 |
bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); |
| 498 |
vm_stop(0);
|
| 499 |
} else {
|
| 500 |
if (op & BM_STATUS_DMA_RETRY) {
|
| 501 |
dma_buf_commit(s, 0);
|
| 502 |
ide_dma_error(s); |
| 503 |
} else {
|
| 504 |
ide_rw_error(s); |
| 505 |
} |
| 506 |
bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); |
| 507 |
} |
| 508 |
|
| 509 |
return 1; |
| 510 |
} |
| 511 |
|
| 512 |
/* return 0 if buffer completed */
|
| 513 |
static int dma_buf_rw(BMDMAState *bm, int is_write) |
| 514 |
{
|
| 515 |
IDEState *s = bmdma_active_if(bm); |
| 516 |
struct {
|
| 517 |
uint32_t addr; |
| 518 |
uint32_t size; |
| 519 |
} prd; |
| 520 |
int l, len;
|
| 521 |
|
| 522 |
for(;;) {
|
| 523 |
l = s->io_buffer_size - s->io_buffer_index; |
| 524 |
if (l <= 0) |
| 525 |
break;
|
| 526 |
if (bm->cur_prd_len == 0) { |
| 527 |
/* end of table (with a fail safe of one page) */
|
| 528 |
if (bm->cur_prd_last ||
|
| 529 |
(bm->cur_addr - bm->addr) >= IDE_PAGE_SIZE) |
| 530 |
return 0; |
| 531 |
cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8);
|
| 532 |
bm->cur_addr += 8;
|
| 533 |
prd.addr = le32_to_cpu(prd.addr); |
| 534 |
prd.size = le32_to_cpu(prd.size); |
| 535 |
len = prd.size & 0xfffe;
|
| 536 |
if (len == 0) |
| 537 |
len = 0x10000;
|
| 538 |
bm->cur_prd_len = len; |
| 539 |
bm->cur_prd_addr = prd.addr; |
| 540 |
bm->cur_prd_last = (prd.size & 0x80000000);
|
| 541 |
} |
| 542 |
if (l > bm->cur_prd_len)
|
| 543 |
l = bm->cur_prd_len; |
| 544 |
if (l > 0) { |
| 545 |
if (is_write) {
|
| 546 |
cpu_physical_memory_write(bm->cur_prd_addr, |
| 547 |
s->io_buffer + s->io_buffer_index, l); |
| 548 |
} else {
|
| 549 |
cpu_physical_memory_read(bm->cur_prd_addr, |
| 550 |
s->io_buffer + s->io_buffer_index, l); |
| 551 |
} |
| 552 |
bm->cur_prd_addr += l; |
| 553 |
bm->cur_prd_len -= l; |
| 554 |
s->io_buffer_index += l; |
| 555 |
} |
| 556 |
} |
| 557 |
return 1; |
| 558 |
} |
| 559 |
|
| 560 |
static void ide_read_dma_cb(void *opaque, int ret) |
| 561 |
{
|
| 562 |
BMDMAState *bm = opaque; |
| 563 |
IDEState *s = bmdma_active_if(bm); |
| 564 |
int n;
|
| 565 |
int64_t sector_num; |
| 566 |
|
| 567 |
if (ret < 0) { |
| 568 |
if (ide_handle_rw_error(s, -ret,
|
| 569 |
BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ)) |
| 570 |
{
|
| 571 |
return;
|
| 572 |
} |
| 573 |
} |
| 574 |
|
| 575 |
n = s->io_buffer_size >> 9;
|
| 576 |
sector_num = ide_get_sector(s); |
| 577 |
if (n > 0) { |
| 578 |
dma_buf_commit(s, 1);
|
| 579 |
sector_num += n; |
| 580 |
ide_set_sector(s, sector_num); |
| 581 |
s->nsector -= n; |
| 582 |
} |
| 583 |
|
| 584 |
/* end of transfer ? */
|
| 585 |
if (s->nsector == 0) { |
| 586 |
s->status = READY_STAT | SEEK_STAT; |
| 587 |
ide_set_irq(s->bus); |
| 588 |
eot:
|
| 589 |
bm->status &= ~BM_STATUS_DMAING; |
| 590 |
bm->status |= BM_STATUS_INT; |
| 591 |
bm->dma_cb = NULL;
|
| 592 |
bm->unit = -1;
|
| 593 |
bm->aiocb = NULL;
|
| 594 |
return;
|
| 595 |
} |
| 596 |
|
| 597 |
/* launch next transfer */
|
| 598 |
n = s->nsector; |
| 599 |
s->io_buffer_index = 0;
|
| 600 |
s->io_buffer_size = n * 512;
|
| 601 |
if (dma_buf_prepare(bm, 1) == 0) |
| 602 |
goto eot;
|
| 603 |
#ifdef DEBUG_AIO
|
| 604 |
printf("aio_read: sector_num=%" PRId64 " n=%d\n", sector_num, n); |
| 605 |
#endif
|
| 606 |
bm->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num, ide_read_dma_cb, bm); |
| 607 |
ide_dma_submit_check(s, ide_read_dma_cb, bm); |
| 608 |
} |
| 609 |
|
| 610 |
static void ide_sector_read_dma(IDEState *s) |
| 611 |
{
|
| 612 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
| 613 |
s->io_buffer_index = 0;
|
| 614 |
s->io_buffer_size = 0;
|
| 615 |
s->is_read = 1;
|
| 616 |
ide_dma_start(s, ide_read_dma_cb); |
| 617 |
} |
| 618 |
|
| 619 |
static void ide_sector_write_timer_cb(void *opaque) |
| 620 |
{
|
| 621 |
IDEState *s = opaque; |
| 622 |
ide_set_irq(s->bus); |
| 623 |
} |
| 624 |
|
| 625 |
static void ide_sector_write(IDEState *s) |
| 626 |
{
|
| 627 |
int64_t sector_num; |
| 628 |
int ret, n, n1;
|
| 629 |
|
| 630 |
s->status = READY_STAT | SEEK_STAT; |
| 631 |
sector_num = ide_get_sector(s); |
| 632 |
#if defined(DEBUG_IDE)
|
| 633 |
printf("write sector=%" PRId64 "\n", sector_num); |
| 634 |
#endif
|
| 635 |
n = s->nsector; |
| 636 |
if (n > s->req_nb_sectors)
|
| 637 |
n = s->req_nb_sectors; |
| 638 |
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); |
| 639 |
|
| 640 |
if (ret != 0) { |
| 641 |
if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY))
|
| 642 |
return;
|
| 643 |
} |
| 644 |
|
| 645 |
s->nsector -= n; |
| 646 |
if (s->nsector == 0) { |
| 647 |
/* no more sectors to write */
|
| 648 |
ide_transfer_stop(s); |
| 649 |
} else {
|
| 650 |
n1 = s->nsector; |
| 651 |
if (n1 > s->req_nb_sectors)
|
| 652 |
n1 = s->req_nb_sectors; |
| 653 |
ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write);
|
| 654 |
} |
| 655 |
ide_set_sector(s, sector_num + n); |
| 656 |
|
| 657 |
if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
| 658 |
/* It seems there is a bug in the Windows 2000 installer HDD
|
| 659 |
IDE driver which fills the disk with empty logs when the
|
| 660 |
IDE write IRQ comes too early. This hack tries to correct
|
| 661 |
that at the expense of slower write performances. Use this
|
| 662 |
option _only_ to install Windows 2000. You must disable it
|
| 663 |
for normal use. */
|
| 664 |
qemu_mod_timer(s->sector_write_timer, |
| 665 |
qemu_get_clock(vm_clock) + (get_ticks_per_sec() / 1000));
|
| 666 |
} else {
|
| 667 |
ide_set_irq(s->bus); |
| 668 |
} |
| 669 |
} |
| 670 |
|
| 671 |
static void ide_dma_restart_bh(void *opaque) |
| 672 |
{
|
| 673 |
BMDMAState *bm = opaque; |
| 674 |
int is_read;
|
| 675 |
|
| 676 |
qemu_bh_delete(bm->bh); |
| 677 |
bm->bh = NULL;
|
| 678 |
|
| 679 |
is_read = !!(bm->status & BM_STATUS_RETRY_READ); |
| 680 |
|
| 681 |
if (bm->status & BM_STATUS_DMA_RETRY) {
|
| 682 |
bm->status &= ~(BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ); |
| 683 |
ide_dma_restart(bmdma_active_if(bm), is_read); |
| 684 |
} else if (bm->status & BM_STATUS_PIO_RETRY) { |
| 685 |
bm->status &= ~(BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ); |
| 686 |
if (is_read) {
|
| 687 |
ide_sector_read(bmdma_active_if(bm)); |
| 688 |
} else {
|
| 689 |
ide_sector_write(bmdma_active_if(bm)); |
| 690 |
} |
| 691 |
} |
| 692 |
} |
| 693 |
|
| 694 |
void ide_dma_restart_cb(void *opaque, int running, int reason) |
| 695 |
{
|
| 696 |
BMDMAState *bm = opaque; |
| 697 |
|
| 698 |
if (!running)
|
| 699 |
return;
|
| 700 |
|
| 701 |
if (!bm->bh) {
|
| 702 |
bm->bh = qemu_bh_new(ide_dma_restart_bh, bm); |
| 703 |
qemu_bh_schedule(bm->bh); |
| 704 |
} |
| 705 |
} |
| 706 |
|
| 707 |
static void ide_write_dma_cb(void *opaque, int ret) |
| 708 |
{
|
| 709 |
BMDMAState *bm = opaque; |
| 710 |
IDEState *s = bmdma_active_if(bm); |
| 711 |
int n;
|
| 712 |
int64_t sector_num; |
| 713 |
|
| 714 |
if (ret < 0) { |
| 715 |
if (ide_handle_rw_error(s, -ret, BM_STATUS_DMA_RETRY))
|
| 716 |
return;
|
| 717 |
} |
| 718 |
|
| 719 |
n = s->io_buffer_size >> 9;
|
| 720 |
sector_num = ide_get_sector(s); |
| 721 |
if (n > 0) { |
| 722 |
dma_buf_commit(s, 0);
|
| 723 |
sector_num += n; |
| 724 |
ide_set_sector(s, sector_num); |
| 725 |
s->nsector -= n; |
| 726 |
} |
| 727 |
|
| 728 |
/* end of transfer ? */
|
| 729 |
if (s->nsector == 0) { |
| 730 |
s->status = READY_STAT | SEEK_STAT; |
| 731 |
ide_set_irq(s->bus); |
| 732 |
eot:
|
| 733 |
bm->status &= ~BM_STATUS_DMAING; |
| 734 |
bm->status |= BM_STATUS_INT; |
| 735 |
bm->dma_cb = NULL;
|
| 736 |
bm->unit = -1;
|
| 737 |
bm->aiocb = NULL;
|
| 738 |
return;
|
| 739 |
} |
| 740 |
|
| 741 |
n = s->nsector; |
| 742 |
s->io_buffer_size = n * 512;
|
| 743 |
/* launch next transfer */
|
| 744 |
if (dma_buf_prepare(bm, 0) == 0) |
| 745 |
goto eot;
|
| 746 |
#ifdef DEBUG_AIO
|
| 747 |
printf("aio_write: sector_num=%" PRId64 " n=%d\n", sector_num, n); |
| 748 |
#endif
|
| 749 |
bm->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, ide_write_dma_cb, bm); |
| 750 |
ide_dma_submit_check(s, ide_write_dma_cb, bm); |
| 751 |
} |
| 752 |
|
| 753 |
static void ide_sector_write_dma(IDEState *s) |
| 754 |
{
|
| 755 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
| 756 |
s->io_buffer_index = 0;
|
| 757 |
s->io_buffer_size = 0;
|
| 758 |
s->is_read = 0;
|
| 759 |
ide_dma_start(s, ide_write_dma_cb); |
| 760 |
} |
| 761 |
|
| 762 |
void ide_atapi_cmd_ok(IDEState *s)
|
| 763 |
{
|
| 764 |
s->error = 0;
|
| 765 |
s->status = READY_STAT | SEEK_STAT; |
| 766 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
| 767 |
ide_set_irq(s->bus); |
| 768 |
} |
| 769 |
|
| 770 |
void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) |
| 771 |
{
|
| 772 |
#ifdef DEBUG_IDE_ATAPI
|
| 773 |
printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
|
| 774 |
#endif
|
| 775 |
s->error = sense_key << 4;
|
| 776 |
s->status = READY_STAT | ERR_STAT; |
| 777 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
| 778 |
s->sense_key = sense_key; |
| 779 |
s->asc = asc; |
| 780 |
ide_set_irq(s->bus); |
| 781 |
} |
| 782 |
|
| 783 |
static void ide_atapi_cmd_check_status(IDEState *s) |
| 784 |
{
|
| 785 |
#ifdef DEBUG_IDE_ATAPI
|
| 786 |
printf("atapi_cmd_check_status\n");
|
| 787 |
#endif
|
| 788 |
s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4);
|
| 789 |
s->status = ERR_STAT; |
| 790 |
s->nsector = 0;
|
| 791 |
ide_set_irq(s->bus); |
| 792 |
} |
| 793 |
|
| 794 |
static void ide_flush_cb(void *opaque, int ret) |
| 795 |
{
|
| 796 |
IDEState *s = opaque; |
| 797 |
|
| 798 |
/* XXX: how do we signal I/O errors here? */
|
| 799 |
|
| 800 |
s->status = READY_STAT | SEEK_STAT; |
| 801 |
ide_set_irq(s->bus); |
| 802 |
} |
| 803 |
|
| 804 |
static inline void cpu_to_ube16(uint8_t *buf, int val) |
| 805 |
{
|
| 806 |
buf[0] = val >> 8; |
| 807 |
buf[1] = val & 0xff; |
| 808 |
} |
| 809 |
|
| 810 |
static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) |
| 811 |
{
|
| 812 |
buf[0] = val >> 24; |
| 813 |
buf[1] = val >> 16; |
| 814 |
buf[2] = val >> 8; |
| 815 |
buf[3] = val & 0xff; |
| 816 |
} |
| 817 |
|
| 818 |
static inline int ube16_to_cpu(const uint8_t *buf) |
| 819 |
{
|
| 820 |
return (buf[0] << 8) | buf[1]; |
| 821 |
} |
| 822 |
|
| 823 |
static inline int ube32_to_cpu(const uint8_t *buf) |
| 824 |
{
|
| 825 |
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; |
| 826 |
} |
| 827 |
|
| 828 |
static void lba_to_msf(uint8_t *buf, int lba) |
| 829 |
{
|
| 830 |
lba += 150;
|
| 831 |
buf[0] = (lba / 75) / 60; |
| 832 |
buf[1] = (lba / 75) % 60; |
| 833 |
buf[2] = lba % 75; |
| 834 |
} |
| 835 |
|
| 836 |
static void cd_data_to_raw(uint8_t *buf, int lba) |
| 837 |
{
|
| 838 |
/* sync bytes */
|
| 839 |
buf[0] = 0x00; |
| 840 |
memset(buf + 1, 0xff, 10); |
| 841 |
buf[11] = 0x00; |
| 842 |
buf += 12;
|
| 843 |
/* MSF */
|
| 844 |
lba_to_msf(buf, lba); |
| 845 |
buf[3] = 0x01; /* mode 1 data */ |
| 846 |
buf += 4;
|
| 847 |
/* data */
|
| 848 |
buf += 2048;
|
| 849 |
/* XXX: ECC not computed */
|
| 850 |
memset(buf, 0, 288); |
| 851 |
} |
| 852 |
|
| 853 |
static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf, |
| 854 |
int sector_size)
|
| 855 |
{
|
| 856 |
int ret;
|
| 857 |
|
| 858 |
switch(sector_size) {
|
| 859 |
case 2048: |
| 860 |
ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4); |
| 861 |
break;
|
| 862 |
case 2352: |
| 863 |
ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4); |
| 864 |
if (ret < 0) |
| 865 |
return ret;
|
| 866 |
cd_data_to_raw(buf, lba); |
| 867 |
break;
|
| 868 |
default:
|
| 869 |
ret = -EIO; |
| 870 |
break;
|
| 871 |
} |
| 872 |
return ret;
|
| 873 |
} |
| 874 |
|
| 875 |
void ide_atapi_io_error(IDEState *s, int ret) |
| 876 |
{
|
| 877 |
/* XXX: handle more errors */
|
| 878 |
if (ret == -ENOMEDIUM) {
|
| 879 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 880 |
ASC_MEDIUM_NOT_PRESENT); |
| 881 |
} else {
|
| 882 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 883 |
ASC_LOGICAL_BLOCK_OOR); |
| 884 |
} |
| 885 |
} |
| 886 |
|
| 887 |
/* The whole ATAPI transfer logic is handled in this function */
|
| 888 |
static void ide_atapi_cmd_reply_end(IDEState *s) |
| 889 |
{
|
| 890 |
int byte_count_limit, size, ret;
|
| 891 |
#ifdef DEBUG_IDE_ATAPI
|
| 892 |
printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
|
| 893 |
s->packet_transfer_size, |
| 894 |
s->elementary_transfer_size, |
| 895 |
s->io_buffer_index); |
| 896 |
#endif
|
| 897 |
if (s->packet_transfer_size <= 0) { |
| 898 |
/* end of transfer */
|
| 899 |
ide_transfer_stop(s); |
| 900 |
s->status = READY_STAT | SEEK_STAT; |
| 901 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
| 902 |
ide_set_irq(s->bus); |
| 903 |
#ifdef DEBUG_IDE_ATAPI
|
| 904 |
printf("status=0x%x\n", s->status);
|
| 905 |
#endif
|
| 906 |
} else {
|
| 907 |
/* see if a new sector must be read */
|
| 908 |
if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { |
| 909 |
ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); |
| 910 |
if (ret < 0) { |
| 911 |
ide_transfer_stop(s); |
| 912 |
ide_atapi_io_error(s, ret); |
| 913 |
return;
|
| 914 |
} |
| 915 |
s->lba++; |
| 916 |
s->io_buffer_index = 0;
|
| 917 |
} |
| 918 |
if (s->elementary_transfer_size > 0) { |
| 919 |
/* there are some data left to transmit in this elementary
|
| 920 |
transfer */
|
| 921 |
size = s->cd_sector_size - s->io_buffer_index; |
| 922 |
if (size > s->elementary_transfer_size)
|
| 923 |
size = s->elementary_transfer_size; |
| 924 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
| 925 |
size, ide_atapi_cmd_reply_end); |
| 926 |
s->packet_transfer_size -= size; |
| 927 |
s->elementary_transfer_size -= size; |
| 928 |
s->io_buffer_index += size; |
| 929 |
} else {
|
| 930 |
/* a new transfer is needed */
|
| 931 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
|
| 932 |
byte_count_limit = s->lcyl | (s->hcyl << 8);
|
| 933 |
#ifdef DEBUG_IDE_ATAPI
|
| 934 |
printf("byte_count_limit=%d\n", byte_count_limit);
|
| 935 |
#endif
|
| 936 |
if (byte_count_limit == 0xffff) |
| 937 |
byte_count_limit--; |
| 938 |
size = s->packet_transfer_size; |
| 939 |
if (size > byte_count_limit) {
|
| 940 |
/* byte count limit must be even if this case */
|
| 941 |
if (byte_count_limit & 1) |
| 942 |
byte_count_limit--; |
| 943 |
size = byte_count_limit; |
| 944 |
} |
| 945 |
s->lcyl = size; |
| 946 |
s->hcyl = size >> 8;
|
| 947 |
s->elementary_transfer_size = size; |
| 948 |
/* we cannot transmit more than one sector at a time */
|
| 949 |
if (s->lba != -1) { |
| 950 |
if (size > (s->cd_sector_size - s->io_buffer_index))
|
| 951 |
size = (s->cd_sector_size - s->io_buffer_index); |
| 952 |
} |
| 953 |
ide_transfer_start(s, s->io_buffer + s->io_buffer_index, |
| 954 |
size, ide_atapi_cmd_reply_end); |
| 955 |
s->packet_transfer_size -= size; |
| 956 |
s->elementary_transfer_size -= size; |
| 957 |
s->io_buffer_index += size; |
| 958 |
ide_set_irq(s->bus); |
| 959 |
#ifdef DEBUG_IDE_ATAPI
|
| 960 |
printf("status=0x%x\n", s->status);
|
| 961 |
#endif
|
| 962 |
} |
| 963 |
} |
| 964 |
} |
| 965 |
|
| 966 |
/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
|
| 967 |
static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) |
| 968 |
{
|
| 969 |
if (size > max_size)
|
| 970 |
size = max_size; |
| 971 |
s->lba = -1; /* no sector read */ |
| 972 |
s->packet_transfer_size = size; |
| 973 |
s->io_buffer_size = size; /* dma: send the reply data as one chunk */
|
| 974 |
s->elementary_transfer_size = 0;
|
| 975 |
s->io_buffer_index = 0;
|
| 976 |
|
| 977 |
if (s->atapi_dma) {
|
| 978 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT; |
| 979 |
ide_dma_start(s, ide_atapi_cmd_read_dma_cb); |
| 980 |
} else {
|
| 981 |
s->status = READY_STAT | SEEK_STAT; |
| 982 |
ide_atapi_cmd_reply_end(s); |
| 983 |
} |
| 984 |
} |
| 985 |
|
| 986 |
/* start a CD-CDROM read command */
|
| 987 |
static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors, |
| 988 |
int sector_size)
|
| 989 |
{
|
| 990 |
s->lba = lba; |
| 991 |
s->packet_transfer_size = nb_sectors * sector_size; |
| 992 |
s->elementary_transfer_size = 0;
|
| 993 |
s->io_buffer_index = sector_size; |
| 994 |
s->cd_sector_size = sector_size; |
| 995 |
|
| 996 |
s->status = READY_STAT | SEEK_STAT; |
| 997 |
ide_atapi_cmd_reply_end(s); |
| 998 |
} |
| 999 |
|
| 1000 |
/* ATAPI DMA support */
|
| 1001 |
|
| 1002 |
/* XXX: handle read errors */
|
| 1003 |
static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret) |
| 1004 |
{
|
| 1005 |
BMDMAState *bm = opaque; |
| 1006 |
IDEState *s = bmdma_active_if(bm); |
| 1007 |
int data_offset, n;
|
| 1008 |
|
| 1009 |
if (ret < 0) { |
| 1010 |
ide_atapi_io_error(s, ret); |
| 1011 |
goto eot;
|
| 1012 |
} |
| 1013 |
|
| 1014 |
if (s->io_buffer_size > 0) { |
| 1015 |
/*
|
| 1016 |
* For a cdrom read sector command (s->lba != -1),
|
| 1017 |
* adjust the lba for the next s->io_buffer_size chunk
|
| 1018 |
* and dma the current chunk.
|
| 1019 |
* For a command != read (s->lba == -1), just transfer
|
| 1020 |
* the reply data.
|
| 1021 |
*/
|
| 1022 |
if (s->lba != -1) { |
| 1023 |
if (s->cd_sector_size == 2352) { |
| 1024 |
n = 1;
|
| 1025 |
cd_data_to_raw(s->io_buffer, s->lba); |
| 1026 |
} else {
|
| 1027 |
n = s->io_buffer_size >> 11;
|
| 1028 |
} |
| 1029 |
s->lba += n; |
| 1030 |
} |
| 1031 |
s->packet_transfer_size -= s->io_buffer_size; |
| 1032 |
if (dma_buf_rw(bm, 1) == 0) |
| 1033 |
goto eot;
|
| 1034 |
} |
| 1035 |
|
| 1036 |
if (s->packet_transfer_size <= 0) { |
| 1037 |
s->status = READY_STAT | SEEK_STAT; |
| 1038 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
| 1039 |
ide_set_irq(s->bus); |
| 1040 |
eot:
|
| 1041 |
bm->status &= ~BM_STATUS_DMAING; |
| 1042 |
bm->status |= BM_STATUS_INT; |
| 1043 |
bm->dma_cb = NULL;
|
| 1044 |
bm->unit = -1;
|
| 1045 |
bm->aiocb = NULL;
|
| 1046 |
return;
|
| 1047 |
} |
| 1048 |
|
| 1049 |
s->io_buffer_index = 0;
|
| 1050 |
if (s->cd_sector_size == 2352) { |
| 1051 |
n = 1;
|
| 1052 |
s->io_buffer_size = s->cd_sector_size; |
| 1053 |
data_offset = 16;
|
| 1054 |
} else {
|
| 1055 |
n = s->packet_transfer_size >> 11;
|
| 1056 |
if (n > (IDE_DMA_BUF_SECTORS / 4)) |
| 1057 |
n = (IDE_DMA_BUF_SECTORS / 4);
|
| 1058 |
s->io_buffer_size = n * 2048;
|
| 1059 |
data_offset = 0;
|
| 1060 |
} |
| 1061 |
#ifdef DEBUG_AIO
|
| 1062 |
printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
|
| 1063 |
#endif
|
| 1064 |
bm->iov.iov_base = (void *)(s->io_buffer + data_offset);
|
| 1065 |
bm->iov.iov_len = n * 4 * 512; |
| 1066 |
qemu_iovec_init_external(&bm->qiov, &bm->iov, 1);
|
| 1067 |
bm->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2, &bm->qiov,
|
| 1068 |
n * 4, ide_atapi_cmd_read_dma_cb, bm);
|
| 1069 |
if (!bm->aiocb) {
|
| 1070 |
/* Note: media not present is the most likely case */
|
| 1071 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1072 |
ASC_MEDIUM_NOT_PRESENT); |
| 1073 |
goto eot;
|
| 1074 |
} |
| 1075 |
} |
| 1076 |
|
| 1077 |
/* start a CD-CDROM read command with DMA */
|
| 1078 |
/* XXX: test if DMA is available */
|
| 1079 |
static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, |
| 1080 |
int sector_size)
|
| 1081 |
{
|
| 1082 |
s->lba = lba; |
| 1083 |
s->packet_transfer_size = nb_sectors * sector_size; |
| 1084 |
s->io_buffer_index = 0;
|
| 1085 |
s->io_buffer_size = 0;
|
| 1086 |
s->cd_sector_size = sector_size; |
| 1087 |
|
| 1088 |
/* XXX: check if BUSY_STAT should be set */
|
| 1089 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
| 1090 |
ide_dma_start(s, ide_atapi_cmd_read_dma_cb); |
| 1091 |
} |
| 1092 |
|
| 1093 |
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, |
| 1094 |
int sector_size)
|
| 1095 |
{
|
| 1096 |
#ifdef DEBUG_IDE_ATAPI
|
| 1097 |
printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio", |
| 1098 |
lba, nb_sectors); |
| 1099 |
#endif
|
| 1100 |
if (s->atapi_dma) {
|
| 1101 |
ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); |
| 1102 |
} else {
|
| 1103 |
ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); |
| 1104 |
} |
| 1105 |
} |
| 1106 |
|
| 1107 |
static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index, |
| 1108 |
uint16_t profile) |
| 1109 |
{
|
| 1110 |
uint8_t *buf_profile = buf + 12; /* start of profiles */ |
| 1111 |
|
| 1112 |
buf_profile += ((*index) * 4); /* start of indexed profile */ |
| 1113 |
cpu_to_ube16 (buf_profile, profile); |
| 1114 |
buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7])); |
| 1115 |
|
| 1116 |
/* each profile adds 4 bytes to the response */
|
| 1117 |
(*index)++; |
| 1118 |
buf[11] += 4; /* Additional Length */ |
| 1119 |
|
| 1120 |
return 4; |
| 1121 |
} |
| 1122 |
|
| 1123 |
static int ide_dvd_read_structure(IDEState *s, int format, |
| 1124 |
const uint8_t *packet, uint8_t *buf)
|
| 1125 |
{
|
| 1126 |
switch (format) {
|
| 1127 |
case 0x0: /* Physical format information */ |
| 1128 |
{
|
| 1129 |
int layer = packet[6]; |
| 1130 |
uint64_t total_sectors; |
| 1131 |
|
| 1132 |
if (layer != 0) |
| 1133 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
| 1134 |
|
| 1135 |
bdrv_get_geometry(s->bs, &total_sectors); |
| 1136 |
total_sectors >>= 2;
|
| 1137 |
if (total_sectors == 0) |
| 1138 |
return -ASC_MEDIUM_NOT_PRESENT;
|
| 1139 |
|
| 1140 |
buf[4] = 1; /* DVD-ROM, part version 1 */ |
| 1141 |
buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ |
| 1142 |
buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ |
| 1143 |
buf[7] = 0; /* default densities */ |
| 1144 |
|
| 1145 |
/* FIXME: 0x30000 per spec? */
|
| 1146 |
cpu_to_ube32(buf + 8, 0); /* start sector */ |
| 1147 |
cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */ |
| 1148 |
cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */ |
| 1149 |
|
| 1150 |
/* Size of buffer, not including 2 byte size field */
|
| 1151 |
cpu_to_be16wu((uint16_t *)buf, 2048 + 2); |
| 1152 |
|
| 1153 |
/* 2k data + 4 byte header */
|
| 1154 |
return (2048 + 4); |
| 1155 |
} |
| 1156 |
|
| 1157 |
case 0x01: /* DVD copyright information */ |
| 1158 |
buf[4] = 0; /* no copyright data */ |
| 1159 |
buf[5] = 0; /* no region restrictions */ |
| 1160 |
|
| 1161 |
/* Size of buffer, not including 2 byte size field */
|
| 1162 |
cpu_to_be16wu((uint16_t *)buf, 4 + 2); |
| 1163 |
|
| 1164 |
/* 4 byte header + 4 byte data */
|
| 1165 |
return (4 + 4); |
| 1166 |
|
| 1167 |
case 0x03: /* BCA information - invalid field for no BCA info */ |
| 1168 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
| 1169 |
|
| 1170 |
case 0x04: /* DVD disc manufacturing information */ |
| 1171 |
/* Size of buffer, not including 2 byte size field */
|
| 1172 |
cpu_to_be16wu((uint16_t *)buf, 2048 + 2); |
| 1173 |
|
| 1174 |
/* 2k data + 4 byte header */
|
| 1175 |
return (2048 + 4); |
| 1176 |
|
| 1177 |
case 0xff: |
| 1178 |
/*
|
| 1179 |
* This lists all the command capabilities above. Add new ones
|
| 1180 |
* in order and update the length and buffer return values.
|
| 1181 |
*/
|
| 1182 |
|
| 1183 |
buf[4] = 0x00; /* Physical format */ |
| 1184 |
buf[5] = 0x40; /* Not writable, is readable */ |
| 1185 |
cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4); |
| 1186 |
|
| 1187 |
buf[8] = 0x01; /* Copyright info */ |
| 1188 |
buf[9] = 0x40; /* Not writable, is readable */ |
| 1189 |
cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4); |
| 1190 |
|
| 1191 |
buf[12] = 0x03; /* BCA info */ |
| 1192 |
buf[13] = 0x40; /* Not writable, is readable */ |
| 1193 |
cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4); |
| 1194 |
|
| 1195 |
buf[16] = 0x04; /* Manufacturing info */ |
| 1196 |
buf[17] = 0x40; /* Not writable, is readable */ |
| 1197 |
cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4); |
| 1198 |
|
| 1199 |
/* Size of buffer, not including 2 byte size field */
|
| 1200 |
cpu_to_be16wu((uint16_t *)buf, 16 + 2); |
| 1201 |
|
| 1202 |
/* data written + 4 byte header */
|
| 1203 |
return (16 + 4); |
| 1204 |
|
| 1205 |
default: /* TODO: formats beyond DVD-ROM requires */ |
| 1206 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
| 1207 |
} |
| 1208 |
} |
| 1209 |
|
| 1210 |
static void ide_atapi_cmd(IDEState *s) |
| 1211 |
{
|
| 1212 |
const uint8_t *packet;
|
| 1213 |
uint8_t *buf; |
| 1214 |
int max_len;
|
| 1215 |
|
| 1216 |
packet = s->io_buffer; |
| 1217 |
buf = s->io_buffer; |
| 1218 |
#ifdef DEBUG_IDE_ATAPI
|
| 1219 |
{
|
| 1220 |
int i;
|
| 1221 |
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); |
| 1222 |
for(i = 0; i < ATAPI_PACKET_SIZE; i++) { |
| 1223 |
printf(" %02x", packet[i]);
|
| 1224 |
} |
| 1225 |
printf("\n");
|
| 1226 |
} |
| 1227 |
#endif
|
| 1228 |
/* If there's a UNIT_ATTENTION condition pending, only
|
| 1229 |
REQUEST_SENSE and INQUIRY commands are allowed to complete. */
|
| 1230 |
if (s->sense_key == SENSE_UNIT_ATTENTION &&
|
| 1231 |
s->io_buffer[0] != GPCMD_REQUEST_SENSE &&
|
| 1232 |
s->io_buffer[0] != GPCMD_INQUIRY) {
|
| 1233 |
ide_atapi_cmd_check_status(s); |
| 1234 |
return;
|
| 1235 |
} |
| 1236 |
switch(s->io_buffer[0]) { |
| 1237 |
case GPCMD_TEST_UNIT_READY:
|
| 1238 |
if (bdrv_is_inserted(s->bs) && !s->cdrom_changed) {
|
| 1239 |
ide_atapi_cmd_ok(s); |
| 1240 |
} else {
|
| 1241 |
s->cdrom_changed = 0;
|
| 1242 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1243 |
ASC_MEDIUM_NOT_PRESENT); |
| 1244 |
} |
| 1245 |
break;
|
| 1246 |
case GPCMD_MODE_SENSE_6:
|
| 1247 |
case GPCMD_MODE_SENSE_10:
|
| 1248 |
{
|
| 1249 |
int action, code;
|
| 1250 |
if (packet[0] == GPCMD_MODE_SENSE_10) |
| 1251 |
max_len = ube16_to_cpu(packet + 7);
|
| 1252 |
else
|
| 1253 |
max_len = packet[4];
|
| 1254 |
action = packet[2] >> 6; |
| 1255 |
code = packet[2] & 0x3f; |
| 1256 |
switch(action) {
|
| 1257 |
case 0: /* current values */ |
| 1258 |
switch(code) {
|
| 1259 |
case GPMODE_R_W_ERROR_PAGE: /* error recovery */ |
| 1260 |
cpu_to_ube16(&buf[0], 16 + 6); |
| 1261 |
buf[2] = 0x70; |
| 1262 |
buf[3] = 0; |
| 1263 |
buf[4] = 0; |
| 1264 |
buf[5] = 0; |
| 1265 |
buf[6] = 0; |
| 1266 |
buf[7] = 0; |
| 1267 |
|
| 1268 |
buf[8] = 0x01; |
| 1269 |
buf[9] = 0x06; |
| 1270 |
buf[10] = 0x00; |
| 1271 |
buf[11] = 0x05; |
| 1272 |
buf[12] = 0x00; |
| 1273 |
buf[13] = 0x00; |
| 1274 |
buf[14] = 0x00; |
| 1275 |
buf[15] = 0x00; |
| 1276 |
ide_atapi_cmd_reply(s, 16, max_len);
|
| 1277 |
break;
|
| 1278 |
case GPMODE_AUDIO_CTL_PAGE:
|
| 1279 |
cpu_to_ube16(&buf[0], 24 + 6); |
| 1280 |
buf[2] = 0x70; |
| 1281 |
buf[3] = 0; |
| 1282 |
buf[4] = 0; |
| 1283 |
buf[5] = 0; |
| 1284 |
buf[6] = 0; |
| 1285 |
buf[7] = 0; |
| 1286 |
|
| 1287 |
/* Fill with CDROM audio volume */
|
| 1288 |
buf[17] = 0; |
| 1289 |
buf[19] = 0; |
| 1290 |
buf[21] = 0; |
| 1291 |
buf[23] = 0; |
| 1292 |
|
| 1293 |
ide_atapi_cmd_reply(s, 24, max_len);
|
| 1294 |
break;
|
| 1295 |
case GPMODE_CAPABILITIES_PAGE:
|
| 1296 |
cpu_to_ube16(&buf[0], 28 + 6); |
| 1297 |
buf[2] = 0x70; |
| 1298 |
buf[3] = 0; |
| 1299 |
buf[4] = 0; |
| 1300 |
buf[5] = 0; |
| 1301 |
buf[6] = 0; |
| 1302 |
buf[7] = 0; |
| 1303 |
|
| 1304 |
buf[8] = 0x2a; |
| 1305 |
buf[9] = 0x12; |
| 1306 |
buf[10] = 0x00; |
| 1307 |
buf[11] = 0x00; |
| 1308 |
|
| 1309 |
/* Claim PLAY_AUDIO capability (0x01) since some Linux
|
| 1310 |
code checks for this to automount media. */
|
| 1311 |
buf[12] = 0x71; |
| 1312 |
buf[13] = 3 << 5; |
| 1313 |
buf[14] = (1 << 0) | (1 << 3) | (1 << 5); |
| 1314 |
if (bdrv_is_locked(s->bs))
|
| 1315 |
buf[6] |= 1 << 1; |
| 1316 |
buf[15] = 0x00; |
| 1317 |
cpu_to_ube16(&buf[16], 706); |
| 1318 |
buf[18] = 0; |
| 1319 |
buf[19] = 2; |
| 1320 |
cpu_to_ube16(&buf[20], 512); |
| 1321 |
cpu_to_ube16(&buf[22], 706); |
| 1322 |
buf[24] = 0; |
| 1323 |
buf[25] = 0; |
| 1324 |
buf[26] = 0; |
| 1325 |
buf[27] = 0; |
| 1326 |
ide_atapi_cmd_reply(s, 28, max_len);
|
| 1327 |
break;
|
| 1328 |
default:
|
| 1329 |
goto error_cmd;
|
| 1330 |
} |
| 1331 |
break;
|
| 1332 |
case 1: /* changeable values */ |
| 1333 |
goto error_cmd;
|
| 1334 |
case 2: /* default values */ |
| 1335 |
goto error_cmd;
|
| 1336 |
default:
|
| 1337 |
case 3: /* saved values */ |
| 1338 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1339 |
ASC_SAVING_PARAMETERS_NOT_SUPPORTED); |
| 1340 |
break;
|
| 1341 |
} |
| 1342 |
} |
| 1343 |
break;
|
| 1344 |
case GPCMD_REQUEST_SENSE:
|
| 1345 |
max_len = packet[4];
|
| 1346 |
memset(buf, 0, 18); |
| 1347 |
buf[0] = 0x70 | (1 << 7); |
| 1348 |
buf[2] = s->sense_key;
|
| 1349 |
buf[7] = 10; |
| 1350 |
buf[12] = s->asc;
|
| 1351 |
if (s->sense_key == SENSE_UNIT_ATTENTION)
|
| 1352 |
s->sense_key = SENSE_NONE; |
| 1353 |
ide_atapi_cmd_reply(s, 18, max_len);
|
| 1354 |
break;
|
| 1355 |
case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
|
| 1356 |
if (bdrv_is_inserted(s->bs)) {
|
| 1357 |
bdrv_set_locked(s->bs, packet[4] & 1); |
| 1358 |
ide_atapi_cmd_ok(s); |
| 1359 |
} else {
|
| 1360 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1361 |
ASC_MEDIUM_NOT_PRESENT); |
| 1362 |
} |
| 1363 |
break;
|
| 1364 |
case GPCMD_READ_10:
|
| 1365 |
case GPCMD_READ_12:
|
| 1366 |
{
|
| 1367 |
int nb_sectors, lba;
|
| 1368 |
|
| 1369 |
if (packet[0] == GPCMD_READ_10) |
| 1370 |
nb_sectors = ube16_to_cpu(packet + 7);
|
| 1371 |
else
|
| 1372 |
nb_sectors = ube32_to_cpu(packet + 6);
|
| 1373 |
lba = ube32_to_cpu(packet + 2);
|
| 1374 |
if (nb_sectors == 0) { |
| 1375 |
ide_atapi_cmd_ok(s); |
| 1376 |
break;
|
| 1377 |
} |
| 1378 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
| 1379 |
} |
| 1380 |
break;
|
| 1381 |
case GPCMD_READ_CD:
|
| 1382 |
{
|
| 1383 |
int nb_sectors, lba, transfer_request;
|
| 1384 |
|
| 1385 |
nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8]; |
| 1386 |
lba = ube32_to_cpu(packet + 2);
|
| 1387 |
if (nb_sectors == 0) { |
| 1388 |
ide_atapi_cmd_ok(s); |
| 1389 |
break;
|
| 1390 |
} |
| 1391 |
transfer_request = packet[9];
|
| 1392 |
switch(transfer_request & 0xf8) { |
| 1393 |
case 0x00: |
| 1394 |
/* nothing */
|
| 1395 |
ide_atapi_cmd_ok(s); |
| 1396 |
break;
|
| 1397 |
case 0x10: |
| 1398 |
/* normal read */
|
| 1399 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
| 1400 |
break;
|
| 1401 |
case 0xf8: |
| 1402 |
/* read all data */
|
| 1403 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
|
| 1404 |
break;
|
| 1405 |
default:
|
| 1406 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1407 |
ASC_INV_FIELD_IN_CMD_PACKET); |
| 1408 |
break;
|
| 1409 |
} |
| 1410 |
} |
| 1411 |
break;
|
| 1412 |
case GPCMD_SEEK:
|
| 1413 |
{
|
| 1414 |
unsigned int lba; |
| 1415 |
uint64_t total_sectors; |
| 1416 |
|
| 1417 |
bdrv_get_geometry(s->bs, &total_sectors); |
| 1418 |
total_sectors >>= 2;
|
| 1419 |
if (total_sectors == 0) { |
| 1420 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1421 |
ASC_MEDIUM_NOT_PRESENT); |
| 1422 |
break;
|
| 1423 |
} |
| 1424 |
lba = ube32_to_cpu(packet + 2);
|
| 1425 |
if (lba >= total_sectors) {
|
| 1426 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1427 |
ASC_LOGICAL_BLOCK_OOR); |
| 1428 |
break;
|
| 1429 |
} |
| 1430 |
ide_atapi_cmd_ok(s); |
| 1431 |
} |
| 1432 |
break;
|
| 1433 |
case GPCMD_START_STOP_UNIT:
|
| 1434 |
{
|
| 1435 |
int start, eject, err = 0; |
| 1436 |
start = packet[4] & 1; |
| 1437 |
eject = (packet[4] >> 1) & 1; |
| 1438 |
|
| 1439 |
if (eject) {
|
| 1440 |
err = bdrv_eject(s->bs, !start); |
| 1441 |
} |
| 1442 |
|
| 1443 |
switch (err) {
|
| 1444 |
case 0: |
| 1445 |
ide_atapi_cmd_ok(s); |
| 1446 |
break;
|
| 1447 |
case -EBUSY:
|
| 1448 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1449 |
ASC_MEDIA_REMOVAL_PREVENTED); |
| 1450 |
break;
|
| 1451 |
default:
|
| 1452 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1453 |
ASC_MEDIUM_NOT_PRESENT); |
| 1454 |
break;
|
| 1455 |
} |
| 1456 |
} |
| 1457 |
break;
|
| 1458 |
case GPCMD_MECHANISM_STATUS:
|
| 1459 |
{
|
| 1460 |
max_len = ube16_to_cpu(packet + 8);
|
| 1461 |
cpu_to_ube16(buf, 0);
|
| 1462 |
/* no current LBA */
|
| 1463 |
buf[2] = 0; |
| 1464 |
buf[3] = 0; |
| 1465 |
buf[4] = 0; |
| 1466 |
buf[5] = 1; |
| 1467 |
cpu_to_ube16(buf + 6, 0); |
| 1468 |
ide_atapi_cmd_reply(s, 8, max_len);
|
| 1469 |
} |
| 1470 |
break;
|
| 1471 |
case GPCMD_READ_TOC_PMA_ATIP:
|
| 1472 |
{
|
| 1473 |
int format, msf, start_track, len;
|
| 1474 |
uint64_t total_sectors; |
| 1475 |
|
| 1476 |
bdrv_get_geometry(s->bs, &total_sectors); |
| 1477 |
total_sectors >>= 2;
|
| 1478 |
if (total_sectors == 0) { |
| 1479 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1480 |
ASC_MEDIUM_NOT_PRESENT); |
| 1481 |
break;
|
| 1482 |
} |
| 1483 |
max_len = ube16_to_cpu(packet + 7);
|
| 1484 |
format = packet[9] >> 6; |
| 1485 |
msf = (packet[1] >> 1) & 1; |
| 1486 |
start_track = packet[6];
|
| 1487 |
switch(format) {
|
| 1488 |
case 0: |
| 1489 |
len = cdrom_read_toc(total_sectors, buf, msf, start_track); |
| 1490 |
if (len < 0) |
| 1491 |
goto error_cmd;
|
| 1492 |
ide_atapi_cmd_reply(s, len, max_len); |
| 1493 |
break;
|
| 1494 |
case 1: |
| 1495 |
/* multi session : only a single session defined */
|
| 1496 |
memset(buf, 0, 12); |
| 1497 |
buf[1] = 0x0a; |
| 1498 |
buf[2] = 0x01; |
| 1499 |
buf[3] = 0x01; |
| 1500 |
ide_atapi_cmd_reply(s, 12, max_len);
|
| 1501 |
break;
|
| 1502 |
case 2: |
| 1503 |
len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track); |
| 1504 |
if (len < 0) |
| 1505 |
goto error_cmd;
|
| 1506 |
ide_atapi_cmd_reply(s, len, max_len); |
| 1507 |
break;
|
| 1508 |
default:
|
| 1509 |
error_cmd:
|
| 1510 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1511 |
ASC_INV_FIELD_IN_CMD_PACKET); |
| 1512 |
break;
|
| 1513 |
} |
| 1514 |
} |
| 1515 |
break;
|
| 1516 |
case GPCMD_READ_CDVD_CAPACITY:
|
| 1517 |
{
|
| 1518 |
uint64_t total_sectors; |
| 1519 |
|
| 1520 |
bdrv_get_geometry(s->bs, &total_sectors); |
| 1521 |
total_sectors >>= 2;
|
| 1522 |
if (total_sectors == 0) { |
| 1523 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
| 1524 |
ASC_MEDIUM_NOT_PRESENT); |
| 1525 |
break;
|
| 1526 |
} |
| 1527 |
/* NOTE: it is really the number of sectors minus 1 */
|
| 1528 |
cpu_to_ube32(buf, total_sectors - 1);
|
| 1529 |
cpu_to_ube32(buf + 4, 2048); |
| 1530 |
ide_atapi_cmd_reply(s, 8, 8); |
| 1531 |
} |
| 1532 |
break;
|
| 1533 |
case GPCMD_READ_DVD_STRUCTURE:
|
| 1534 |
{
|
| 1535 |
int media = packet[1]; |
| 1536 |
int format = packet[7]; |
| 1537 |
int ret;
|
| 1538 |
|
| 1539 |
max_len = ube16_to_cpu(packet + 8);
|
| 1540 |
|
| 1541 |
if (format < 0xff) { |
| 1542 |
if (media_is_cd(s)) {
|
| 1543 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1544 |
ASC_INCOMPATIBLE_FORMAT); |
| 1545 |
break;
|
| 1546 |
} else if (!media_present(s)) { |
| 1547 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1548 |
ASC_INV_FIELD_IN_CMD_PACKET); |
| 1549 |
break;
|
| 1550 |
} |
| 1551 |
} |
| 1552 |
|
| 1553 |
memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ? |
| 1554 |
IDE_DMA_BUF_SECTORS * 512 + 4 : max_len); |
| 1555 |
|
| 1556 |
switch (format) {
|
| 1557 |
case 0x00 ... 0x7f: |
| 1558 |
case 0xff: |
| 1559 |
if (media == 0) { |
| 1560 |
ret = ide_dvd_read_structure(s, format, packet, buf); |
| 1561 |
|
| 1562 |
if (ret < 0) |
| 1563 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret); |
| 1564 |
else
|
| 1565 |
ide_atapi_cmd_reply(s, ret, max_len); |
| 1566 |
|
| 1567 |
break;
|
| 1568 |
} |
| 1569 |
/* TODO: BD support, fall through for now */
|
| 1570 |
|
| 1571 |
/* Generic disk structures */
|
| 1572 |
case 0x80: /* TODO: AACS volume identifier */ |
| 1573 |
case 0x81: /* TODO: AACS media serial number */ |
| 1574 |
case 0x82: /* TODO: AACS media identifier */ |
| 1575 |
case 0x83: /* TODO: AACS media key block */ |
| 1576 |
case 0x90: /* TODO: List of recognized format layers */ |
| 1577 |
case 0xc0: /* TODO: Write protection status */ |
| 1578 |
default:
|
| 1579 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1580 |
ASC_INV_FIELD_IN_CMD_PACKET); |
| 1581 |
break;
|
| 1582 |
} |
| 1583 |
} |
| 1584 |
break;
|
| 1585 |
case GPCMD_SET_SPEED:
|
| 1586 |
ide_atapi_cmd_ok(s); |
| 1587 |
break;
|
| 1588 |
case GPCMD_INQUIRY:
|
| 1589 |
max_len = packet[4];
|
| 1590 |
buf[0] = 0x05; /* CD-ROM */ |
| 1591 |
buf[1] = 0x80; /* removable */ |
| 1592 |
buf[2] = 0x00; /* ISO */ |
| 1593 |
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ |
| 1594 |
buf[4] = 31; /* additional length */ |
| 1595 |
buf[5] = 0; /* reserved */ |
| 1596 |
buf[6] = 0; /* reserved */ |
| 1597 |
buf[7] = 0; /* reserved */ |
| 1598 |
padstr8(buf + 8, 8, "QEMU"); |
| 1599 |
padstr8(buf + 16, 16, "QEMU DVD-ROM"); |
| 1600 |
padstr8(buf + 32, 4, s->version); |
| 1601 |
ide_atapi_cmd_reply(s, 36, max_len);
|
| 1602 |
break;
|
| 1603 |
case GPCMD_GET_CONFIGURATION:
|
| 1604 |
{
|
| 1605 |
uint32_t len; |
| 1606 |
uint8_t index = 0;
|
| 1607 |
|
| 1608 |
/* only feature 0 is supported */
|
| 1609 |
if (packet[2] != 0 || packet[3] != 0) { |
| 1610 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1611 |
ASC_INV_FIELD_IN_CMD_PACKET); |
| 1612 |
break;
|
| 1613 |
} |
| 1614 |
|
| 1615 |
/* XXX: could result in alignment problems in some architectures */
|
| 1616 |
max_len = ube16_to_cpu(packet + 7);
|
| 1617 |
|
| 1618 |
/*
|
| 1619 |
* XXX: avoid overflow for io_buffer if max_len is bigger than
|
| 1620 |
* the size of that buffer (dimensioned to max number of
|
| 1621 |
* sectors to transfer at once)
|
| 1622 |
*
|
| 1623 |
* Only a problem if the feature/profiles grow.
|
| 1624 |
*/
|
| 1625 |
if (max_len > 512) /* XXX: assume 1 sector */ |
| 1626 |
max_len = 512;
|
| 1627 |
|
| 1628 |
memset(buf, 0, max_len);
|
| 1629 |
/*
|
| 1630 |
* the number of sectors from the media tells us which profile
|
| 1631 |
* to use as current. 0 means there is no media
|
| 1632 |
*/
|
| 1633 |
if (media_is_dvd(s))
|
| 1634 |
cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM);
|
| 1635 |
else if (media_is_cd(s)) |
| 1636 |
cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM);
|
| 1637 |
|
| 1638 |
buf[10] = 0x02 | 0x01; /* persistent and current */ |
| 1639 |
len = 12; /* headers: 8 + 4 */ |
| 1640 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); |
| 1641 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); |
| 1642 |
cpu_to_ube32(buf, len - 4); /* data length */ |
| 1643 |
|
| 1644 |
ide_atapi_cmd_reply(s, len, max_len); |
| 1645 |
break;
|
| 1646 |
} |
| 1647 |
default:
|
| 1648 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
| 1649 |
ASC_ILLEGAL_OPCODE); |
| 1650 |
break;
|
| 1651 |
} |
| 1652 |
} |
| 1653 |
|
| 1654 |
static void ide_cfata_metadata_inquiry(IDEState *s) |
| 1655 |
{
|
| 1656 |
uint16_t *p; |
| 1657 |
uint32_t spd; |
| 1658 |
|
| 1659 |
p = (uint16_t *) s->io_buffer; |
| 1660 |
memset(p, 0, 0x200); |
| 1661 |
spd = ((s->mdata_size - 1) >> 9) + 1; |
| 1662 |
|
| 1663 |
put_le16(p + 0, 0x0001); /* Data format revision */ |
| 1664 |
put_le16(p + 1, 0x0000); /* Media property: silicon */ |
| 1665 |
put_le16(p + 2, s->media_changed); /* Media status */ |
| 1666 |
put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */ |
| 1667 |
put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */ |
| 1668 |
put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */ |
| 1669 |
put_le16(p + 6, spd >> 16); /* Sectors per device (high) */ |
| 1670 |
} |
| 1671 |
|
| 1672 |
static void ide_cfata_metadata_read(IDEState *s) |
| 1673 |
{
|
| 1674 |
uint16_t *p; |
| 1675 |
|
| 1676 |
if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) { |
| 1677 |
s->status = ERR_STAT; |
| 1678 |
s->error = ABRT_ERR; |
| 1679 |
return;
|
| 1680 |
} |
| 1681 |
|
| 1682 |
p = (uint16_t *) s->io_buffer; |
| 1683 |
memset(p, 0, 0x200); |
| 1684 |
|
| 1685 |
put_le16(p + 0, s->media_changed); /* Media status */ |
| 1686 |
memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9), |
| 1687 |
MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9), |
| 1688 |
s->nsector << 9), 0x200 - 2)); |
| 1689 |
} |
| 1690 |
|
| 1691 |
static void ide_cfata_metadata_write(IDEState *s) |
| 1692 |
{
|
| 1693 |
if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) { |
| 1694 |
s->status = ERR_STAT; |
| 1695 |
s->error = ABRT_ERR; |
| 1696 |
return;
|
| 1697 |
} |
| 1698 |
|
| 1699 |
s->media_changed = 0;
|
| 1700 |
|
| 1701 |
memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9), |
| 1702 |
s->io_buffer + 2,
|
| 1703 |
MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9), |
| 1704 |
s->nsector << 9), 0x200 - 2)); |
| 1705 |
} |
| 1706 |
|
| 1707 |
/* called when the inserted state of the media has changed */
|
| 1708 |
static void cdrom_change_cb(void *opaque) |
| 1709 |
{
|
| 1710 |
IDEState *s = opaque; |
| 1711 |
uint64_t nb_sectors; |
| 1712 |
|
| 1713 |
bdrv_get_geometry(s->bs, &nb_sectors); |
| 1714 |
s->nb_sectors = nb_sectors; |
| 1715 |
|
| 1716 |
s->sense_key = SENSE_UNIT_ATTENTION; |
| 1717 |
s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED; |
| 1718 |
s->cdrom_changed = 1;
|
| 1719 |
ide_set_irq(s->bus); |
| 1720 |
} |
| 1721 |
|
| 1722 |
static void ide_cmd_lba48_transform(IDEState *s, int lba48) |
| 1723 |
{
|
| 1724 |
s->lba48 = lba48; |
| 1725 |
|
| 1726 |
/* handle the 'magic' 0 nsector count conversion here. to avoid
|
| 1727 |
* fiddling with the rest of the read logic, we just store the
|
| 1728 |
* full sector count in ->nsector and ignore ->hob_nsector from now
|
| 1729 |
*/
|
| 1730 |
if (!s->lba48) {
|
| 1731 |
if (!s->nsector)
|
| 1732 |
s->nsector = 256;
|
| 1733 |
} else {
|
| 1734 |
if (!s->nsector && !s->hob_nsector)
|
| 1735 |
s->nsector = 65536;
|
| 1736 |
else {
|
| 1737 |
int lo = s->nsector;
|
| 1738 |
int hi = s->hob_nsector;
|
| 1739 |
|
| 1740 |
s->nsector = (hi << 8) | lo;
|
| 1741 |
} |
| 1742 |
} |
| 1743 |
} |
| 1744 |
|
| 1745 |
static void ide_clear_hob(IDEBus *bus) |
| 1746 |
{
|
| 1747 |
/* any write clears HOB high bit of device control register */
|
| 1748 |
bus->ifs[0].select &= ~(1 << 7); |
| 1749 |
bus->ifs[1].select &= ~(1 << 7); |
| 1750 |
} |
| 1751 |
|
| 1752 |
void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
| 1753 |
{
|
| 1754 |
IDEBus *bus = opaque; |
| 1755 |
IDEState *s; |
| 1756 |
int n;
|
| 1757 |
int lba48 = 0; |
| 1758 |
|
| 1759 |
#ifdef DEBUG_IDE
|
| 1760 |
printf("IDE: write addr=0x%x val=0x%02x\n", addr, val);
|
| 1761 |
#endif
|
| 1762 |
|
| 1763 |
addr &= 7;
|
| 1764 |
|
| 1765 |
/* ignore writes to command block while busy with previous command */
|
| 1766 |
if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT))) |
| 1767 |
return;
|
| 1768 |
|
| 1769 |
switch(addr) {
|
| 1770 |
case 0: |
| 1771 |
break;
|
| 1772 |
case 1: |
| 1773 |
ide_clear_hob(bus); |
| 1774 |
/* NOTE: data is written to the two drives */
|
| 1775 |
bus->ifs[0].hob_feature = bus->ifs[0].feature; |
| 1776 |
bus->ifs[1].hob_feature = bus->ifs[1].feature; |
| 1777 |
bus->ifs[0].feature = val;
|
| 1778 |
bus->ifs[1].feature = val;
|
| 1779 |
break;
|
| 1780 |
case 2: |
| 1781 |
ide_clear_hob(bus); |
| 1782 |
bus->ifs[0].hob_nsector = bus->ifs[0].nsector; |
| 1783 |
bus->ifs[1].hob_nsector = bus->ifs[1].nsector; |
| 1784 |
bus->ifs[0].nsector = val;
|
| 1785 |
bus->ifs[1].nsector = val;
|
| 1786 |
break;
|
| 1787 |
case 3: |
| 1788 |
ide_clear_hob(bus); |
| 1789 |
bus->ifs[0].hob_sector = bus->ifs[0].sector; |
| 1790 |
bus->ifs[1].hob_sector = bus->ifs[1].sector; |
| 1791 |
bus->ifs[0].sector = val;
|
| 1792 |
bus->ifs[1].sector = val;
|
| 1793 |
break;
|
| 1794 |
case 4: |
| 1795 |
ide_clear_hob(bus); |
| 1796 |
bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl; |
| 1797 |
bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl; |
| 1798 |
bus->ifs[0].lcyl = val;
|
| 1799 |
bus->ifs[1].lcyl = val;
|
| 1800 |
break;
|
| 1801 |
case 5: |
| 1802 |
ide_clear_hob(bus); |
| 1803 |
bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl; |
| 1804 |
bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl; |
| 1805 |
bus->ifs[0].hcyl = val;
|
| 1806 |
bus->ifs[1].hcyl = val;
|
| 1807 |
break;
|
| 1808 |
case 6: |
| 1809 |
/* FIXME: HOB readback uses bit 7 */
|
| 1810 |
bus->ifs[0].select = (val & ~0x10) | 0xa0; |
| 1811 |
bus->ifs[1].select = (val | 0x10) | 0xa0; |
| 1812 |
/* select drive */
|
| 1813 |
bus->unit = (val >> 4) & 1; |
| 1814 |
break;
|
| 1815 |
default:
|
| 1816 |
case 7: |
| 1817 |
/* command */
|
| 1818 |
#if defined(DEBUG_IDE)
|
| 1819 |
printf("ide: CMD=%02x\n", val);
|
| 1820 |
#endif
|
| 1821 |
s = idebus_active_if(bus); |
| 1822 |
/* ignore commands to non existant slave */
|
| 1823 |
if (s != bus->ifs && !s->bs)
|
| 1824 |
break;
|
| 1825 |
|
| 1826 |
/* Only DEVICE RESET is allowed while BSY or/and DRQ are set */
|
| 1827 |
if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET)
|
| 1828 |
break;
|
| 1829 |
|
| 1830 |
switch(val) {
|
| 1831 |
case WIN_IDENTIFY:
|
| 1832 |
if (s->bs && !s->is_cdrom) {
|
| 1833 |
if (!s->is_cf)
|
| 1834 |
ide_identify(s); |
| 1835 |
else
|
| 1836 |
ide_cfata_identify(s); |
| 1837 |
s->status = READY_STAT | SEEK_STAT; |
| 1838 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
| 1839 |
} else {
|
| 1840 |
if (s->is_cdrom) {
|
| 1841 |
ide_set_signature(s); |
| 1842 |
} |
| 1843 |
ide_abort_command(s); |
| 1844 |
} |
| 1845 |
ide_set_irq(s->bus); |
| 1846 |
break;
|
| 1847 |
case WIN_SPECIFY:
|
| 1848 |
case WIN_RECAL:
|
| 1849 |
s->error = 0;
|
| 1850 |
s->status = READY_STAT | SEEK_STAT; |
| 1851 |
ide_set_irq(s->bus); |
| 1852 |
break;
|
| 1853 |
case WIN_SETMULT:
|
| 1854 |
if (s->is_cf && s->nsector == 0) { |
| 1855 |
/* Disable Read and Write Multiple */
|
| 1856 |
s->mult_sectors = 0;
|
| 1857 |
s->status = READY_STAT | SEEK_STAT; |
| 1858 |
} else if ((s->nsector & 0xff) != 0 && |
| 1859 |
((s->nsector & 0xff) > MAX_MULT_SECTORS ||
|
| 1860 |
(s->nsector & (s->nsector - 1)) != 0)) { |
| 1861 |
ide_abort_command(s); |
| 1862 |
} else {
|
| 1863 |
s->mult_sectors = s->nsector & 0xff;
|
| 1864 |
s->status = READY_STAT | SEEK_STAT; |
| 1865 |
} |
| 1866 |
ide_set_irq(s->bus); |
| 1867 |
break;
|
| 1868 |
case WIN_VERIFY_EXT:
|
| 1869 |
lba48 = 1;
|
| 1870 |
case WIN_VERIFY:
|
| 1871 |
case WIN_VERIFY_ONCE:
|
| 1872 |
/* do sector number check ? */
|
| 1873 |
ide_cmd_lba48_transform(s, lba48); |
| 1874 |
s->status = READY_STAT | SEEK_STAT; |
| 1875 |
ide_set_irq(s->bus); |
| 1876 |
break;
|
| 1877 |
case WIN_READ_EXT:
|
| 1878 |
lba48 = 1;
|
| 1879 |
case WIN_READ:
|
| 1880 |
case WIN_READ_ONCE:
|
| 1881 |
if (!s->bs)
|
| 1882 |
goto abort_cmd;
|
| 1883 |
ide_cmd_lba48_transform(s, lba48); |
| 1884 |
s->req_nb_sectors = 1;
|
| 1885 |
ide_sector_read(s); |
| 1886 |
break;
|
| 1887 |
case WIN_WRITE_EXT:
|
| 1888 |
lba48 = 1;
|
| 1889 |
case WIN_WRITE:
|
| 1890 |
case WIN_WRITE_ONCE:
|
| 1891 |
case CFA_WRITE_SECT_WO_ERASE:
|
| 1892 |
case WIN_WRITE_VERIFY:
|
| 1893 |
ide_cmd_lba48_transform(s, lba48); |
| 1894 |
s->error = 0;
|
| 1895 |
s->status = SEEK_STAT | READY_STAT; |
| 1896 |
s->req_nb_sectors = 1;
|
| 1897 |
ide_transfer_start(s, s->io_buffer, 512, ide_sector_write);
|
| 1898 |
s->media_changed = 1;
|
| 1899 |
break;
|
| 1900 |
case WIN_MULTREAD_EXT:
|
| 1901 |
lba48 = 1;
|
| 1902 |
case WIN_MULTREAD:
|
| 1903 |
if (!s->mult_sectors)
|
| 1904 |
goto abort_cmd;
|
| 1905 |
ide_cmd_lba48_transform(s, lba48); |
| 1906 |
s->req_nb_sectors = s->mult_sectors; |
| 1907 |
ide_sector_read(s); |
| 1908 |
break;
|
| 1909 |
case WIN_MULTWRITE_EXT:
|
| 1910 |
lba48 = 1;
|
| 1911 |
case WIN_MULTWRITE:
|
| 1912 |
case CFA_WRITE_MULTI_WO_ERASE:
|
| 1913 |
if (!s->mult_sectors)
|
| 1914 |
goto abort_cmd;
|
| 1915 |
ide_cmd_lba48_transform(s, lba48); |
| 1916 |
s->error = 0;
|
| 1917 |
s->status = SEEK_STAT | READY_STAT; |
| 1918 |
s->req_nb_sectors = s->mult_sectors; |
| 1919 |
n = s->nsector; |
| 1920 |
if (n > s->req_nb_sectors)
|
| 1921 |
n = s->req_nb_sectors; |
| 1922 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write);
|
| 1923 |
s->media_changed = 1;
|
| 1924 |
break;
|
| 1925 |
case WIN_READDMA_EXT:
|
| 1926 |
lba48 = 1;
|
| 1927 |
case WIN_READDMA:
|
| 1928 |
case WIN_READDMA_ONCE:
|
| 1929 |
if (!s->bs)
|
| 1930 |
goto abort_cmd;
|
| 1931 |
ide_cmd_lba48_transform(s, lba48); |
| 1932 |
ide_sector_read_dma(s); |
| 1933 |
break;
|
| 1934 |
case WIN_WRITEDMA_EXT:
|
| 1935 |
lba48 = 1;
|
| 1936 |
case WIN_WRITEDMA:
|
| 1937 |
case WIN_WRITEDMA_ONCE:
|
| 1938 |
if (!s->bs)
|
| 1939 |
goto abort_cmd;
|
| 1940 |
ide_cmd_lba48_transform(s, lba48); |
| 1941 |
ide_sector_write_dma(s); |
| 1942 |
s->media_changed = 1;
|
| 1943 |
break;
|
| 1944 |
case WIN_READ_NATIVE_MAX_EXT:
|
| 1945 |
lba48 = 1;
|
| 1946 |
case WIN_READ_NATIVE_MAX:
|
| 1947 |
ide_cmd_lba48_transform(s, lba48); |
| 1948 |
ide_set_sector(s, s->nb_sectors - 1);
|
| 1949 |
s->status = READY_STAT | SEEK_STAT; |
| 1950 |
ide_set_irq(s->bus); |
| 1951 |
break;
|
| 1952 |
case WIN_CHECKPOWERMODE1:
|
| 1953 |
case WIN_CHECKPOWERMODE2:
|
| 1954 |
s->nsector = 0xff; /* device active or idle */ |
| 1955 |
s->status = READY_STAT | SEEK_STAT; |
| 1956 |
ide_set_irq(s->bus); |
| 1957 |
break;
|
| 1958 |
case WIN_SETFEATURES:
|
| 1959 |
if (!s->bs)
|
| 1960 |
goto abort_cmd;
|
| 1961 |
/* XXX: valid for CDROM ? */
|
| 1962 |
switch(s->feature) {
|
| 1963 |
case 0xcc: /* reverting to power-on defaults enable */ |
| 1964 |
case 0x66: /* reverting to power-on defaults disable */ |
| 1965 |
case 0x02: /* write cache enable */ |
| 1966 |
case 0x82: /* write cache disable */ |
| 1967 |
case 0xaa: /* read look-ahead enable */ |
| 1968 |
case 0x55: /* read look-ahead disable */ |
| 1969 |
case 0x05: /* set advanced power management mode */ |
| 1970 |
case 0x85: /* disable advanced power management mode */ |
| 1971 |
case 0x69: /* NOP */ |
| 1972 |
case 0x67: /* NOP */ |
| 1973 |
case 0x96: /* NOP */ |
| 1974 |
case 0x9a: /* NOP */ |
| 1975 |
case 0x42: /* enable Automatic Acoustic Mode */ |
| 1976 |
case 0xc2: /* disable Automatic Acoustic Mode */ |
| 1977 |
s->status = READY_STAT | SEEK_STAT; |
| 1978 |
ide_set_irq(s->bus); |
| 1979 |
break;
|
| 1980 |
case 0x03: { /* set transfer mode */ |
| 1981 |
uint8_t val = s->nsector & 0x07;
|
| 1982 |
uint16_t *identify_data = (uint16_t *)s->identify_data; |
| 1983 |
|
| 1984 |
switch (s->nsector >> 3) { |
| 1985 |
case 0x00: /* pio default */ |
| 1986 |
case 0x01: /* pio mode */ |
| 1987 |
put_le16(identify_data + 62,0x07); |
| 1988 |
put_le16(identify_data + 63,0x07); |
| 1989 |
put_le16(identify_data + 88,0x3f); |
| 1990 |
break;
|
| 1991 |
case 0x02: /* sigle word dma mode*/ |
| 1992 |
put_le16(identify_data + 62,0x07 | (1 << (val + 8))); |
| 1993 |
put_le16(identify_data + 63,0x07); |
| 1994 |
put_le16(identify_data + 88,0x3f); |
| 1995 |
break;
|
| 1996 |
case 0x04: /* mdma mode */ |
| 1997 |
put_le16(identify_data + 62,0x07); |
| 1998 |
put_le16(identify_data + 63,0x07 | (1 << (val + 8))); |
| 1999 |
put_le16(identify_data + 88,0x3f); |
| 2000 |
break;
|
| 2001 |
case 0x08: /* udma mode */ |
| 2002 |
put_le16(identify_data + 62,0x07); |
| 2003 |
put_le16(identify_data + 63,0x07); |
| 2004 |
put_le16(identify_data + 88,0x3f | (1 << (val + 8))); |
| 2005 |
break;
|
| 2006 |
default:
|
| 2007 |
goto abort_cmd;
|
| 2008 |
} |
| 2009 |
s->status = READY_STAT | SEEK_STAT; |
| 2010 |
ide_set_irq(s->bus); |
| 2011 |
break;
|
| 2012 |
} |
| 2013 |
default:
|
| 2014 |
goto abort_cmd;
|
| 2015 |
} |
| 2016 |
break;
|
| 2017 |
case WIN_FLUSH_CACHE:
|
| 2018 |
case WIN_FLUSH_CACHE_EXT:
|
| 2019 |
if (s->bs)
|
| 2020 |
bdrv_aio_flush(s->bs, ide_flush_cb, s); |
| 2021 |
else
|
| 2022 |
ide_flush_cb(s, 0);
|
| 2023 |
break;
|
| 2024 |
case WIN_STANDBY:
|
| 2025 |
case WIN_STANDBY2:
|
| 2026 |
case WIN_STANDBYNOW1:
|
| 2027 |
case WIN_STANDBYNOW2:
|
| 2028 |
case WIN_IDLEIMMEDIATE:
|
| 2029 |
case CFA_IDLEIMMEDIATE:
|
| 2030 |
case WIN_SETIDLE1:
|
| 2031 |
case WIN_SETIDLE2:
|
| 2032 |
case WIN_SLEEPNOW1:
|
| 2033 |
case WIN_SLEEPNOW2:
|
| 2034 |
s->status = READY_STAT; |
| 2035 |
ide_set_irq(s->bus); |
| 2036 |
break;
|
| 2037 |
case WIN_SEEK:
|
| 2038 |
if(s->is_cdrom)
|
| 2039 |
goto abort_cmd;
|
| 2040 |
/* XXX: Check that seek is within bounds */
|
| 2041 |
s->status = READY_STAT | SEEK_STAT; |
| 2042 |
ide_set_irq(s->bus); |
| 2043 |
break;
|
| 2044 |
/* ATAPI commands */
|
| 2045 |
case WIN_PIDENTIFY:
|
| 2046 |
if (s->is_cdrom) {
|
| 2047 |
ide_atapi_identify(s); |
| 2048 |
s->status = READY_STAT | SEEK_STAT; |
| 2049 |
ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop);
|
| 2050 |
} else {
|
| 2051 |
ide_abort_command(s); |
| 2052 |
} |
| 2053 |
ide_set_irq(s->bus); |
| 2054 |
break;
|
| 2055 |
case WIN_DIAGNOSE:
|
| 2056 |
ide_set_signature(s); |
| 2057 |
if (s->is_cdrom)
|
| 2058 |
s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet |
| 2059 |
* devices to return a clear status register
|
| 2060 |
* with READY_STAT *not* set. */
|
| 2061 |
else
|
| 2062 |
s->status = READY_STAT | SEEK_STAT; |
| 2063 |
s->error = 0x01; /* Device 0 passed, Device 1 passed or not |
| 2064 |
* present.
|
| 2065 |
*/
|
| 2066 |
ide_set_irq(s->bus); |
| 2067 |
break;
|
| 2068 |
case WIN_SRST:
|
| 2069 |
if (!s->is_cdrom)
|
| 2070 |
goto abort_cmd;
|
| 2071 |
ide_set_signature(s); |
| 2072 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
| 2073 |
s->error = 0x01;
|
| 2074 |
break;
|
| 2075 |
case WIN_PACKETCMD:
|
| 2076 |
if (!s->is_cdrom)
|
| 2077 |
goto abort_cmd;
|
| 2078 |
/* overlapping commands not supported */
|
| 2079 |
if (s->feature & 0x02) |
| 2080 |
goto abort_cmd;
|
| 2081 |
s->status = READY_STAT | SEEK_STAT; |
| 2082 |
s->atapi_dma = s->feature & 1;
|
| 2083 |
s->nsector = 1;
|
| 2084 |
ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE, |
| 2085 |
ide_atapi_cmd); |
| 2086 |
break;
|
| 2087 |
/* CF-ATA commands */
|
| 2088 |
case CFA_REQ_EXT_ERROR_CODE:
|
| 2089 |
if (!s->is_cf)
|
| 2090 |
goto abort_cmd;
|
| 2091 |
s->error = 0x09; /* miscellaneous error */ |
| 2092 |
s->status = READY_STAT | SEEK_STAT; |
| 2093 |
ide_set_irq(s->bus); |
| 2094 |
break;
|
| 2095 |
case CFA_ERASE_SECTORS:
|
| 2096 |
case CFA_WEAR_LEVEL:
|
| 2097 |
if (!s->is_cf)
|
| 2098 |
goto abort_cmd;
|
| 2099 |
if (val == CFA_WEAR_LEVEL)
|
| 2100 |
s->nsector = 0;
|
| 2101 |
if (val == CFA_ERASE_SECTORS)
|
| 2102 |
s->media_changed = 1;
|
| 2103 |
s->error = 0x00;
|
| 2104 |
s->status = READY_STAT | SEEK_STAT; |
| 2105 |
ide_set_irq(s->bus); |
| 2106 |
break;
|
| 2107 |
case CFA_TRANSLATE_SECTOR:
|
| 2108 |
if (!s->is_cf)
|
| 2109 |
goto abort_cmd;
|
| 2110 |
s->error = 0x00;
|
| 2111 |
s->status = READY_STAT | SEEK_STAT; |
| 2112 |
memset(s->io_buffer, 0, 0x200); |
| 2113 |
s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */ |
| 2114 |
s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */ |
| 2115 |
s->io_buffer[0x02] = s->select; /* Head */ |
| 2116 |
s->io_buffer[0x03] = s->sector; /* Sector */ |
| 2117 |
s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */ |
| 2118 |
s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */ |
| 2119 |
s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */ |
| 2120 |
s->io_buffer[0x13] = 0x00; /* Erase flag */ |
| 2121 |
s->io_buffer[0x18] = 0x00; /* Hot count */ |
| 2122 |
s->io_buffer[0x19] = 0x00; /* Hot count */ |
| 2123 |
s->io_buffer[0x1a] = 0x01; /* Hot count */ |
| 2124 |
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
| 2125 |
ide_set_irq(s->bus); |
| 2126 |
break;
|
| 2127 |
case CFA_ACCESS_METADATA_STORAGE:
|
| 2128 |
if (!s->is_cf)
|
| 2129 |
goto abort_cmd;
|
| 2130 |
switch (s->feature) {
|
| 2131 |
case 0x02: /* Inquiry Metadata Storage */ |
| 2132 |
ide_cfata_metadata_inquiry(s); |
| 2133 |
break;
|
| 2134 |
case 0x03: /* Read Metadata Storage */ |
| 2135 |
ide_cfata_metadata_read(s); |
| 2136 |
break;
|
| 2137 |
case 0x04: /* Write Metadata Storage */ |
| 2138 |
ide_cfata_metadata_write(s); |
| 2139 |
break;
|
| 2140 |
default:
|
| 2141 |
goto abort_cmd;
|
| 2142 |
} |
| 2143 |
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
| 2144 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
| 2145 |
ide_set_irq(s->bus); |
| 2146 |
break;
|
| 2147 |
case IBM_SENSE_CONDITION:
|
| 2148 |
if (!s->is_cf)
|
| 2149 |
goto abort_cmd;
|
| 2150 |
switch (s->feature) {
|
| 2151 |
case 0x01: /* sense temperature in device */ |
| 2152 |
s->nsector = 0x50; /* +20 C */ |
| 2153 |
break;
|
| 2154 |
default:
|
| 2155 |
goto abort_cmd;
|
| 2156 |
} |
| 2157 |
s->status = READY_STAT | SEEK_STAT; |
| 2158 |
ide_set_irq(s->bus); |
| 2159 |
break;
|
| 2160 |
|
| 2161 |
case WIN_SMART:
|
| 2162 |
if (s->is_cdrom)
|
| 2163 |
goto abort_cmd;
|
| 2164 |
if (s->hcyl != 0xc2 || s->lcyl != 0x4f) |
| 2165 |
goto abort_cmd;
|
| 2166 |
if (!s->smart_enabled && s->feature != SMART_ENABLE)
|
| 2167 |
goto abort_cmd;
|
| 2168 |
switch (s->feature) {
|
| 2169 |
case SMART_DISABLE:
|
| 2170 |
s->smart_enabled = 0;
|
| 2171 |
s->status = READY_STAT | SEEK_STAT; |
| 2172 |
ide_set_irq(s->bus); |
| 2173 |
break;
|
| 2174 |
case SMART_ENABLE:
|
| 2175 |
s->smart_enabled = 1;
|
| 2176 |
s->status = READY_STAT | SEEK_STAT; |
| 2177 |
ide_set_irq(s->bus); |
| 2178 |
break;
|
| 2179 |
case SMART_ATTR_AUTOSAVE:
|
| 2180 |
switch (s->sector) {
|
| 2181 |
case 0x00: |
| 2182 |
s->smart_autosave = 0;
|
| 2183 |
break;
|
| 2184 |
case 0xf1: |
| 2185 |
s->smart_autosave = 1;
|
| 2186 |
break;
|
| 2187 |
default:
|
| 2188 |
goto abort_cmd;
|
| 2189 |
} |
| 2190 |
s->status = READY_STAT | SEEK_STAT; |
| 2191 |
ide_set_irq(s->bus); |
| 2192 |
break;
|
| 2193 |
case SMART_STATUS:
|
| 2194 |
if (!s->smart_errors) {
|
| 2195 |
s->hcyl = 0xc2;
|
| 2196 |
s->lcyl = 0x4f;
|
| 2197 |
} else {
|
| 2198 |
s->hcyl = 0x2c;
|
| 2199 |
s->lcyl = 0xf4;
|
| 2200 |
} |
| 2201 |
s->status = READY_STAT | SEEK_STAT; |
| 2202 |
ide_set_irq(s->bus); |
| 2203 |
break;
|
| 2204 |
case SMART_READ_THRESH:
|
| 2205 |
memset(s->io_buffer, 0, 0x200); |
| 2206 |
s->io_buffer[0] = 0x01; /* smart struct version */ |
| 2207 |
for (n=0; n<30; n++) { |
| 2208 |
if (smart_attributes[n][0] == 0) |
| 2209 |
break;
|
| 2210 |
s->io_buffer[2+0+(n*12)] = smart_attributes[n][0]; |
| 2211 |
s->io_buffer[2+1+(n*12)] = smart_attributes[n][4]; |
| 2212 |
} |
| 2213 |
for (n=0; n<511; n++) /* checksum */ |
| 2214 |
s->io_buffer[511] += s->io_buffer[n];
|
| 2215 |
s->io_buffer[511] = 0x100 - s->io_buffer[511]; |
| 2216 |
s->status = READY_STAT | SEEK_STAT; |
| 2217 |
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
| 2218 |
ide_set_irq(s->bus); |
| 2219 |
break;
|
| 2220 |
case SMART_READ_DATA:
|
| 2221 |
memset(s->io_buffer, 0, 0x200); |
| 2222 |
s->io_buffer[0] = 0x01; /* smart struct version */ |
| 2223 |
for (n=0; n<30; n++) { |
| 2224 |
if (smart_attributes[n][0] == 0) |
| 2225 |
break;
|
| 2226 |
s->io_buffer[2+0+(n*12)] = smart_attributes[n][0]; |
| 2227 |
s->io_buffer[2+1+(n*12)] = smart_attributes[n][1]; |
| 2228 |
s->io_buffer[2+3+(n*12)] = smart_attributes[n][2]; |
| 2229 |
s->io_buffer[2+4+(n*12)] = smart_attributes[n][3]; |
| 2230 |
} |
| 2231 |
s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00); |
| 2232 |
if (s->smart_selftest_count == 0) { |
| 2233 |
s->io_buffer[363] = 0; |
| 2234 |
} else {
|
| 2235 |
s->io_buffer[363] =
|
| 2236 |
s->smart_selftest_data[3 +
|
| 2237 |
(s->smart_selftest_count - 1) *
|
| 2238 |
24];
|
| 2239 |
} |
| 2240 |
s->io_buffer[364] = 0x20; |
| 2241 |
s->io_buffer[365] = 0x01; |
| 2242 |
/* offline data collection capacity: execute + self-test*/
|
| 2243 |
s->io_buffer[367] = (1<<4 | 1<<3 | 1); |
| 2244 |
s->io_buffer[368] = 0x03; /* smart capability (1) */ |
| 2245 |
s->io_buffer[369] = 0x00; /* smart capability (2) */ |
| 2246 |
s->io_buffer[370] = 0x01; /* error logging supported */ |
| 2247 |
s->io_buffer[372] = 0x02; /* minutes for poll short test */ |
| 2248 |
s->io_buffer[373] = 0x36; /* minutes for poll ext test */ |
| 2249 |
s->io_buffer[374] = 0x01; /* minutes for poll conveyance */ |
| 2250 |
|
| 2251 |
for (n=0; n<511; n++) |
| 2252 |
s->io_buffer[511] += s->io_buffer[n];
|
| 2253 |
s->io_buffer[511] = 0x100 - s->io_buffer[511]; |
| 2254 |
s->status = READY_STAT | SEEK_STAT; |
| 2255 |
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
| 2256 |
ide_set_irq(s->bus); |
| 2257 |
break;
|
| 2258 |
case SMART_READ_LOG:
|
| 2259 |
switch (s->sector) {
|
| 2260 |
case 0x01: /* summary smart error log */ |
| 2261 |
memset(s->io_buffer, 0, 0x200); |
| 2262 |
s->io_buffer[0] = 0x01; |
| 2263 |
s->io_buffer[1] = 0x00; /* no error entries */ |
| 2264 |
s->io_buffer[452] = s->smart_errors & 0xff; |
| 2265 |
s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8; |
| 2266 |
|
| 2267 |
for (n=0; n<511; n++) |
| 2268 |
s->io_buffer[511] += s->io_buffer[n];
|
| 2269 |
s->io_buffer[511] = 0x100 - s->io_buffer[511]; |
| 2270 |
break;
|
| 2271 |
case 0x06: /* smart self test log */ |
| 2272 |
memset(s->io_buffer, 0, 0x200); |
| 2273 |
s->io_buffer[0] = 0x01; |
| 2274 |
if (s->smart_selftest_count == 0) { |
| 2275 |
s->io_buffer[508] = 0; |
| 2276 |
} else {
|
| 2277 |
s->io_buffer[508] = s->smart_selftest_count;
|
| 2278 |
for (n=2; n<506; n++) |
| 2279 |
s->io_buffer[n] = s->smart_selftest_data[n]; |
| 2280 |
} |
| 2281 |
for (n=0; n<511; n++) |
| 2282 |
s->io_buffer[511] += s->io_buffer[n];
|
| 2283 |
s->io_buffer[511] = 0x100 - s->io_buffer[511]; |
| 2284 |
break;
|
| 2285 |
default:
|
| 2286 |
goto abort_cmd;
|
| 2287 |
} |
| 2288 |
s->status = READY_STAT | SEEK_STAT; |
| 2289 |
ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop);
|
| 2290 |
ide_set_irq(s->bus); |
| 2291 |
break;
|
| 2292 |
case SMART_EXECUTE_OFFLINE:
|
| 2293 |
switch (s->sector) {
|
| 2294 |
case 0: /* off-line routine */ |
| 2295 |
case 1: /* short self test */ |
| 2296 |
case 2: /* extended self test */ |
| 2297 |
s->smart_selftest_count++; |
| 2298 |
if(s->smart_selftest_count > 21) |
| 2299 |
s->smart_selftest_count = 0;
|
| 2300 |
n = 2 + (s->smart_selftest_count - 1) * 24; |
| 2301 |
s->smart_selftest_data[n] = s->sector; |
| 2302 |
s->smart_selftest_data[n+1] = 0x00; /* OK and finished */ |
| 2303 |
s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */ |
| 2304 |
s->smart_selftest_data[n+3] = 0x12; /* hour count msb */ |
| 2305 |
s->status = READY_STAT | SEEK_STAT; |
| 2306 |
ide_set_irq(s->bus); |
| 2307 |
break;
|
| 2308 |
default:
|
| 2309 |
goto abort_cmd;
|
| 2310 |
} |
| 2311 |
break;
|
| 2312 |
default:
|
| 2313 |
goto abort_cmd;
|
| 2314 |
} |
| 2315 |
break;
|
| 2316 |
default:
|
| 2317 |
abort_cmd:
|
| 2318 |
ide_abort_command(s); |
| 2319 |
ide_set_irq(s->bus); |
| 2320 |
break;
|
| 2321 |
} |
| 2322 |
} |
| 2323 |
} |
| 2324 |
|
| 2325 |
uint32_t ide_ioport_read(void *opaque, uint32_t addr1)
|
| 2326 |
{
|
| 2327 |
IDEBus *bus = opaque; |
| 2328 |
IDEState *s = idebus_active_if(bus); |
| 2329 |
uint32_t addr; |
| 2330 |
int ret, hob;
|
| 2331 |
|
| 2332 |
addr = addr1 & 7;
|
| 2333 |
/* FIXME: HOB readback uses bit 7, but it's always set right now */
|
| 2334 |
//hob = s->select & (1 << 7);
|
| 2335 |
hob = 0;
|
| 2336 |
switch(addr) {
|
| 2337 |
case 0: |
| 2338 |
ret = 0xff;
|
| 2339 |
break;
|
| 2340 |
case 1: |
| 2341 |
if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || |
| 2342 |
(s != bus->ifs && !s->bs)) |
| 2343 |
ret = 0;
|
| 2344 |
else if (!hob) |
| 2345 |
ret = s->error; |
| 2346 |
else
|
| 2347 |
ret = s->hob_feature; |
| 2348 |
break;
|
| 2349 |
case 2: |
| 2350 |
if (!bus->ifs[0].bs && !bus->ifs[1].bs) |
| 2351 |
ret = 0;
|
| 2352 |
else if (!hob) |
| 2353 |
ret = s->nsector & 0xff;
|
| 2354 |
else
|
| 2355 |
ret = s->hob_nsector; |
| 2356 |
break;
|
| 2357 |
case 3: |
| 2358 |
if (!bus->ifs[0].bs && !bus->ifs[1].bs) |
| 2359 |
ret = 0;
|
| 2360 |
else if (!hob) |
| 2361 |
ret = s->sector; |
| 2362 |
else
|
| 2363 |
ret = s->hob_sector; |
| 2364 |
break;
|
| 2365 |
case 4: |
| 2366 |
if (!bus->ifs[0].bs && !bus->ifs[1].bs) |
| 2367 |
ret = 0;
|
| 2368 |
else if (!hob) |
| 2369 |
ret = s->lcyl; |
| 2370 |
else
|
| 2371 |
ret = s->hob_lcyl; |
| 2372 |
break;
|
| 2373 |
case 5: |
| 2374 |
if (!bus->ifs[0].bs && !bus->ifs[1].bs) |
| 2375 |
ret = 0;
|
| 2376 |
else if (!hob) |
| 2377 |
ret = s->hcyl; |
| 2378 |
else
|
| 2379 |
ret = s->hob_hcyl; |
| 2380 |
break;
|
| 2381 |
case 6: |
| 2382 |
if (!bus->ifs[0].bs && !bus->ifs[1].bs) |
| 2383 |
ret = 0;
|
| 2384 |
else
|
| 2385 |
ret = s->select; |
| 2386 |
break;
|
| 2387 |
default:
|
| 2388 |
case 7: |
| 2389 |
if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || |
| 2390 |
(s != bus->ifs && !s->bs)) |
| 2391 |
ret = 0;
|
| 2392 |
else
|
| 2393 |
ret = s->status; |
| 2394 |
qemu_irq_lower(bus->irq); |
| 2395 |
break;
|
| 2396 |
} |
| 2397 |
#ifdef DEBUG_IDE
|
| 2398 |
printf("ide: read addr=0x%x val=%02x\n", addr1, ret);
|
| 2399 |
#endif
|
| 2400 |
return ret;
|
| 2401 |
} |
| 2402 |
|
| 2403 |
uint32_t ide_status_read(void *opaque, uint32_t addr)
|
| 2404 |
{
|
| 2405 |
IDEBus *bus = opaque; |
| 2406 |
IDEState *s = idebus_active_if(bus); |
| 2407 |
int ret;
|
| 2408 |
|
| 2409 |
if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || |
| 2410 |
(s != bus->ifs && !s->bs)) |
| 2411 |
ret = 0;
|
| 2412 |
else
|
| 2413 |
ret = s->status; |
| 2414 |
#ifdef DEBUG_IDE
|
| 2415 |
printf("ide: read status addr=0x%x val=%02x\n", addr, ret);
|
| 2416 |
#endif
|
| 2417 |
return ret;
|
| 2418 |
} |
| 2419 |
|
| 2420 |
void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val) |
| 2421 |
{
|
| 2422 |
IDEBus *bus = opaque; |
| 2423 |
IDEState *s; |
| 2424 |
int i;
|
| 2425 |
|
| 2426 |
#ifdef DEBUG_IDE
|
| 2427 |
printf("ide: write control addr=0x%x val=%02x\n", addr, val);
|
| 2428 |
#endif
|
| 2429 |
/* common for both drives */
|
| 2430 |
if (!(bus->cmd & IDE_CMD_RESET) &&
|
| 2431 |
(val & IDE_CMD_RESET)) {
|
| 2432 |
/* reset low to high */
|
| 2433 |
for(i = 0;i < 2; i++) { |
| 2434 |
s = &bus->ifs[i]; |
| 2435 |
s->status = BUSY_STAT | SEEK_STAT; |
| 2436 |
s->error = 0x01;
|
| 2437 |
} |
| 2438 |
} else if ((bus->cmd & IDE_CMD_RESET) && |
| 2439 |
!(val & IDE_CMD_RESET)) {
|
| 2440 |
/* high to low */
|
| 2441 |
for(i = 0;i < 2; i++) { |
| 2442 |
s = &bus->ifs[i]; |
| 2443 |
if (s->is_cdrom)
|
| 2444 |
s->status = 0x00; /* NOTE: READY is _not_ set */ |
| 2445 |
else
|
| 2446 |
s->status = READY_STAT | SEEK_STAT; |
| 2447 |
ide_set_signature(s); |
| 2448 |
} |
| 2449 |
} |
| 2450 |
|
| 2451 |
bus->cmd = val; |
| 2452 |
} |
| 2453 |
|
| 2454 |
void ide_data_writew(void *opaque, uint32_t addr, uint32_t val) |
| 2455 |
{
|
| 2456 |
IDEBus *bus = opaque; |
| 2457 |
IDEState *s = idebus_active_if(bus); |
| 2458 |
uint8_t *p; |
| 2459 |
|
| 2460 |
/* PIO data access allowed only when DRQ bit is set */
|
| 2461 |
if (!(s->status & DRQ_STAT))
|
| 2462 |
return;
|
| 2463 |
|
| 2464 |
p = s->data_ptr; |
| 2465 |
*(uint16_t *)p = le16_to_cpu(val); |
| 2466 |
p += 2;
|
| 2467 |
s->data_ptr = p; |
| 2468 |
if (p >= s->data_end)
|
| 2469 |
s->end_transfer_func(s); |
| 2470 |
} |
| 2471 |
|
| 2472 |
uint32_t ide_data_readw(void *opaque, uint32_t addr)
|
| 2473 |
{
|
| 2474 |
IDEBus *bus = opaque; |
| 2475 |
IDEState *s = idebus_active_if(bus); |
| 2476 |
uint8_t *p; |
| 2477 |
int ret;
|
| 2478 |
|
| 2479 |
/* PIO data access allowed only when DRQ bit is set */
|
| 2480 |
if (!(s->status & DRQ_STAT))
|
| 2481 |
return 0; |
| 2482 |
|
| 2483 |
p = s->data_ptr; |
| 2484 |
ret = cpu_to_le16(*(uint16_t *)p); |
| 2485 |
p += 2;
|
| 2486 |
s->data_ptr = p; |
| 2487 |
if (p >= s->data_end)
|
| 2488 |
s->end_transfer_func(s); |
| 2489 |
return ret;
|
| 2490 |
} |
| 2491 |
|
| 2492 |
void ide_data_writel(void *opaque, uint32_t addr, uint32_t val) |
| 2493 |
{
|
| 2494 |
IDEBus *bus = opaque; |
| 2495 |
IDEState *s = idebus_active_if(bus); |
| 2496 |
uint8_t *p; |
| 2497 |
|
| 2498 |
/* PIO data access allowed only when DRQ bit is set */
|
| 2499 |
if (!(s->status & DRQ_STAT))
|
| 2500 |
return;
|
| 2501 |
|
| 2502 |
p = s->data_ptr; |
| 2503 |
*(uint32_t *)p = le32_to_cpu(val); |
| 2504 |
p += 4;
|
| 2505 |
s->data_ptr = p; |
| 2506 |
if (p >= s->data_end)
|
| 2507 |
s->end_transfer_func(s); |
| 2508 |
} |
| 2509 |
|
| 2510 |
uint32_t ide_data_readl(void *opaque, uint32_t addr)
|
| 2511 |
{
|
| 2512 |
IDEBus *bus = opaque; |
| 2513 |
IDEState *s = idebus_active_if(bus); |
| 2514 |
uint8_t *p; |
| 2515 |
int ret;
|
| 2516 |
|
| 2517 |
/* PIO data access allowed only when DRQ bit is set */
|
| 2518 |
if (!(s->status & DRQ_STAT))
|
| 2519 |
return 0; |
| 2520 |
|
| 2521 |
p = s->data_ptr; |
| 2522 |
ret = cpu_to_le32(*(uint32_t *)p); |
| 2523 |
p += 4;
|
| 2524 |
s->data_ptr = p; |
| 2525 |
if (p >= s->data_end)
|
| 2526 |
s->end_transfer_func(s); |
| 2527 |
return ret;
|
| 2528 |
} |
| 2529 |
|
| 2530 |
static void ide_dummy_transfer_stop(IDEState *s) |
| 2531 |
{
|
| 2532 |
s->data_ptr = s->io_buffer; |
| 2533 |
s->data_end = s->io_buffer; |
| 2534 |
s->io_buffer[0] = 0xff; |
| 2535 |
s->io_buffer[1] = 0xff; |
| 2536 |
s->io_buffer[2] = 0xff; |
| 2537 |
s->io_buffer[3] = 0xff; |
| 2538 |
} |
| 2539 |
|
| 2540 |
static void ide_reset(IDEState *s) |
| 2541 |
{
|
| 2542 |
#ifdef DEBUG_IDE
|
| 2543 |
printf("ide: reset\n");
|
| 2544 |
#endif
|
| 2545 |
if (s->is_cf)
|
| 2546 |
s->mult_sectors = 0;
|
| 2547 |
else
|
| 2548 |
s->mult_sectors = MAX_MULT_SECTORS; |
| 2549 |
/* ide regs */
|
| 2550 |
s->feature = 0;
|
| 2551 |
s->error = 0;
|
| 2552 |
s->nsector = 0;
|
| 2553 |
s->sector = 0;
|
| 2554 |
s->lcyl = 0;
|
| 2555 |
s->hcyl = 0;
|
| 2556 |
|
| 2557 |
/* lba48 */
|
| 2558 |
s->hob_feature = 0;
|
| 2559 |
s->hob_sector = 0;
|
| 2560 |
s->hob_nsector = 0;
|
| 2561 |
s->hob_lcyl = 0;
|
| 2562 |
s->hob_hcyl = 0;
|
| 2563 |
|
| 2564 |
s->select = 0xa0;
|
| 2565 |
s->status = READY_STAT | SEEK_STAT; |
| 2566 |
|
| 2567 |
s->lba48 = 0;
|
| 2568 |
|
| 2569 |
/* ATAPI specific */
|
| 2570 |
s->sense_key = 0;
|
| 2571 |
s->asc = 0;
|
| 2572 |
s->cdrom_changed = 0;
|
| 2573 |
s->packet_transfer_size = 0;
|
| 2574 |
s->elementary_transfer_size = 0;
|
| 2575 |
s->io_buffer_index = 0;
|
| 2576 |
s->cd_sector_size = 0;
|
| 2577 |
s->atapi_dma = 0;
|
| 2578 |
/* ATA DMA state */
|
| 2579 |
s->io_buffer_size = 0;
|
| 2580 |
s->req_nb_sectors = 0;
|
| 2581 |
|
| 2582 |
ide_set_signature(s); |
| 2583 |
/* init the transfer handler so that 0xffff is returned on data
|
| 2584 |
accesses */
|
| 2585 |
s->end_transfer_func = ide_dummy_transfer_stop; |
| 2586 |
ide_dummy_transfer_stop(s); |
| 2587 |
s->media_changed = 0;
|
| 2588 |
} |
| 2589 |
|
| 2590 |
void ide_bus_reset(IDEBus *bus)
|
| 2591 |
{
|
| 2592 |
bus->unit = 0;
|
| 2593 |
bus->cmd = 0;
|
| 2594 |
ide_reset(&bus->ifs[0]);
|
| 2595 |
ide_reset(&bus->ifs[1]);
|
| 2596 |
ide_clear_hob(bus); |
| 2597 |
} |
| 2598 |
|
| 2599 |
void ide_init_drive(IDEState *s, DriveInfo *dinfo, const char *version) |
| 2600 |
{
|
| 2601 |
int cylinders, heads, secs;
|
| 2602 |
uint64_t nb_sectors; |
| 2603 |
|
| 2604 |
s->bs = dinfo->bdrv; |
| 2605 |
bdrv_get_geometry(s->bs, &nb_sectors); |
| 2606 |
bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); |
| 2607 |
s->cylinders = cylinders; |
| 2608 |
s->heads = heads; |
| 2609 |
s->sectors = secs; |
| 2610 |
s->nb_sectors = nb_sectors; |
| 2611 |
/* The SMART values should be preserved across power cycles
|
| 2612 |
but they aren't. */
|
| 2613 |
s->smart_enabled = 1;
|
| 2614 |
s->smart_autosave = 1;
|
| 2615 |
s->smart_errors = 0;
|
| 2616 |
s->smart_selftest_count = 0;
|
| 2617 |
if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
|
| 2618 |
s->is_cdrom = 1;
|
| 2619 |
bdrv_set_change_cb(s->bs, cdrom_change_cb, s); |
| 2620 |
} |
| 2621 |
strncpy(s->drive_serial_str, drive_get_serial(s->bs), |
| 2622 |
sizeof(s->drive_serial_str));
|
| 2623 |
if (!*s->drive_serial_str) {
|
| 2624 |
snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
|
| 2625 |
"QM%05d", s->drive_serial);
|
| 2626 |
} |
| 2627 |
if (version) {
|
| 2628 |
pstrcpy(s->version, sizeof(s->version), version);
|
| 2629 |
} else {
|
| 2630 |
pstrcpy(s->version, sizeof(s->version), QEMU_VERSION);
|
| 2631 |
} |
| 2632 |
ide_reset(s); |
| 2633 |
} |
| 2634 |
|
| 2635 |
static void ide_init1(IDEBus *bus, int unit) |
| 2636 |
{
|
| 2637 |
static int drive_serial = 1; |
| 2638 |
IDEState *s = &bus->ifs[unit]; |
| 2639 |
|
| 2640 |
s->bus = bus; |
| 2641 |
s->unit = unit; |
| 2642 |
s->drive_serial = drive_serial++; |
| 2643 |
s->io_buffer = qemu_blockalign(s->bs, IDE_DMA_BUF_SECTORS*512 + 4); |
| 2644 |
s->io_buffer_total_len = IDE_DMA_BUF_SECTORS*512 + 4; |
| 2645 |
s->smart_selftest_data = qemu_blockalign(s->bs, 512);
|
| 2646 |
s->sector_write_timer = qemu_new_timer(vm_clock, |
| 2647 |
ide_sector_write_timer_cb, s); |
| 2648 |
} |
| 2649 |
|
| 2650 |
void ide_init2(IDEBus *bus, qemu_irq irq)
|
| 2651 |
{
|
| 2652 |
int i;
|
| 2653 |
|
| 2654 |
for(i = 0; i < 2; i++) { |
| 2655 |
ide_init1(bus, i); |
| 2656 |
ide_reset(&bus->ifs[i]); |
| 2657 |
} |
| 2658 |
bus->irq = irq; |
| 2659 |
} |
| 2660 |
|
| 2661 |
/* TODO convert users to qdev and remove */
|
| 2662 |
void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
|
| 2663 |
DriveInfo *hd1, qemu_irq irq) |
| 2664 |
{
|
| 2665 |
int i;
|
| 2666 |
DriveInfo *dinfo; |
| 2667 |
|
| 2668 |
for(i = 0; i < 2; i++) { |
| 2669 |
dinfo = i == 0 ? hd0 : hd1;
|
| 2670 |
ide_init1(bus, i); |
| 2671 |
if (dinfo) {
|
| 2672 |
ide_init_drive(&bus->ifs[i], dinfo, NULL);
|
| 2673 |
} else {
|
| 2674 |
ide_reset(&bus->ifs[i]); |
| 2675 |
} |
| 2676 |
} |
| 2677 |
bus->irq = irq; |
| 2678 |
} |
| 2679 |
|
| 2680 |
void ide_init_ioport(IDEBus *bus, int iobase, int iobase2) |
| 2681 |
{
|
| 2682 |
register_ioport_write(iobase, 8, 1, ide_ioport_write, bus); |
| 2683 |
register_ioport_read(iobase, 8, 1, ide_ioport_read, bus); |
| 2684 |
if (iobase2) {
|
| 2685 |
register_ioport_read(iobase2, 1, 1, ide_status_read, bus); |
| 2686 |
register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus); |
| 2687 |
} |
| 2688 |
|
| 2689 |
/* data ports */
|
| 2690 |
register_ioport_write(iobase, 2, 2, ide_data_writew, bus); |
| 2691 |
register_ioport_read(iobase, 2, 2, ide_data_readw, bus); |
| 2692 |
register_ioport_write(iobase, 4, 4, ide_data_writel, bus); |
| 2693 |
register_ioport_read(iobase, 4, 4, ide_data_readl, bus); |
| 2694 |
} |
| 2695 |
|
| 2696 |
static bool is_identify_set(void *opaque, int version_id) |
| 2697 |
{
|
| 2698 |
IDEState *s = opaque; |
| 2699 |
|
| 2700 |
return s->identify_set != 0; |
| 2701 |
} |
| 2702 |
|
| 2703 |
static EndTransferFunc* transfer_end_table[] = {
|
| 2704 |
ide_sector_read, |
| 2705 |
ide_sector_write, |
| 2706 |
ide_transfer_stop, |
| 2707 |
ide_atapi_cmd_reply_end, |
| 2708 |
ide_atapi_cmd, |
| 2709 |
}; |
| 2710 |
|
| 2711 |
static int transfer_end_table_idx(EndTransferFunc *fn) |
| 2712 |
{
|
| 2713 |
int i;
|
| 2714 |
|
| 2715 |
for (i = 0; i < ARRAY_SIZE(transfer_end_table); i++) |
| 2716 |
if (transfer_end_table[i] == fn)
|
| 2717 |
return i;
|
| 2718 |
|
| 2719 |
return -1; |
| 2720 |
} |
| 2721 |
|
| 2722 |
static int ide_drive_post_load(void *opaque, int version_id) |
| 2723 |
{
|
| 2724 |
IDEState *s = opaque; |
| 2725 |
|
| 2726 |
if (version_id < 3) { |
| 2727 |
if (s->sense_key == SENSE_UNIT_ATTENTION &&
|
| 2728 |
s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
|
| 2729 |
s->cdrom_changed = 1;
|
| 2730 |
} |
| 2731 |
} |
| 2732 |
|
| 2733 |
if (s->cur_io_buffer_len) {
|
| 2734 |
s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx]; |
| 2735 |
s->data_ptr = s->io_buffer + s->cur_io_buffer_offset; |
| 2736 |
s->data_end = s->data_ptr + s->cur_io_buffer_len; |
| 2737 |
} |
| 2738 |
|
| 2739 |
return 0; |
| 2740 |
} |
| 2741 |
|
| 2742 |
static void ide_drive_pre_save(void *opaque) |
| 2743 |
{
|
| 2744 |
IDEState *s = opaque; |
| 2745 |
int idx;
|
| 2746 |
|
| 2747 |
s->cur_io_buffer_len = 0;
|
| 2748 |
|
| 2749 |
if (!(s->status & DRQ_STAT))
|
| 2750 |
return;
|
| 2751 |
|
| 2752 |
s->cur_io_buffer_offset = s->data_ptr - s->io_buffer; |
| 2753 |
s->cur_io_buffer_len = s->data_end - s->data_ptr; |
| 2754 |
|
| 2755 |
idx = transfer_end_table_idx(s->end_transfer_func); |
| 2756 |
if (idx == -1) { |
| 2757 |
fprintf(stderr, "%s: invalid end_transfer_func for DRQ_STAT\n",
|
| 2758 |
__func__); |
| 2759 |
s->end_transfer_fn_idx = 2;
|
| 2760 |
} else {
|
| 2761 |
s->end_transfer_fn_idx = idx; |
| 2762 |
} |
| 2763 |
} |
| 2764 |
|
| 2765 |
const VMStateDescription vmstate_ide_drive = {
|
| 2766 |
.name = "ide_drive",
|
| 2767 |
.version_id = 4,
|
| 2768 |
.minimum_version_id = 0,
|
| 2769 |
.minimum_version_id_old = 0,
|
| 2770 |
.pre_save = ide_drive_pre_save, |
| 2771 |
.post_load = ide_drive_post_load, |
| 2772 |
.fields = (VMStateField []) {
|
| 2773 |
VMSTATE_INT32(mult_sectors, IDEState), |
| 2774 |
VMSTATE_INT32(identify_set, IDEState), |
| 2775 |
VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set), |
| 2776 |
VMSTATE_UINT8(feature, IDEState), |
| 2777 |
VMSTATE_UINT8(error, IDEState), |
| 2778 |
VMSTATE_UINT32(nsector, IDEState), |
| 2779 |
VMSTATE_UINT8(sector, IDEState), |
| 2780 |
VMSTATE_UINT8(lcyl, IDEState), |
| 2781 |
VMSTATE_UINT8(hcyl, IDEState), |
| 2782 |
VMSTATE_UINT8(hob_feature, IDEState), |
| 2783 |
VMSTATE_UINT8(hob_sector, IDEState), |
| 2784 |
VMSTATE_UINT8(hob_nsector, IDEState), |
| 2785 |
VMSTATE_UINT8(hob_lcyl, IDEState), |
| 2786 |
VMSTATE_UINT8(hob_hcyl, IDEState), |
| 2787 |
VMSTATE_UINT8(select, IDEState), |
| 2788 |
VMSTATE_UINT8(status, IDEState), |
| 2789 |
VMSTATE_UINT8(lba48, IDEState), |
| 2790 |
VMSTATE_UINT8(sense_key, IDEState), |
| 2791 |
VMSTATE_UINT8(asc, IDEState), |
| 2792 |
VMSTATE_UINT8_V(cdrom_changed, IDEState, 3),
|
| 2793 |
VMSTATE_INT32_V(req_nb_sectors, IDEState, 4),
|
| 2794 |
VMSTATE_VARRAY_INT32(io_buffer, IDEState, io_buffer_total_len, 4,
|
| 2795 |
vmstate_info_uint8, uint8_t), |
| 2796 |
VMSTATE_INT32_V(cur_io_buffer_offset, IDEState, 4),
|
| 2797 |
VMSTATE_INT32_V(cur_io_buffer_len, IDEState, 4),
|
| 2798 |
VMSTATE_UINT8_V(end_transfer_fn_idx, IDEState, 4),
|
| 2799 |
VMSTATE_INT32_V(elementary_transfer_size, IDEState, 4),
|
| 2800 |
VMSTATE_INT32_V(packet_transfer_size, IDEState, 4),
|
| 2801 |
VMSTATE_END_OF_LIST() |
| 2802 |
} |
| 2803 |
}; |
| 2804 |
|
| 2805 |
const VMStateDescription vmstate_ide_bus = {
|
| 2806 |
.name = "ide_bus",
|
| 2807 |
.version_id = 1,
|
| 2808 |
.minimum_version_id = 1,
|
| 2809 |
.minimum_version_id_old = 1,
|
| 2810 |
.fields = (VMStateField []) {
|
| 2811 |
VMSTATE_UINT8(cmd, IDEBus), |
| 2812 |
VMSTATE_UINT8(unit, IDEBus), |
| 2813 |
VMSTATE_END_OF_LIST() |
| 2814 |
} |
| 2815 |
}; |
| 2816 |
|
| 2817 |
/***********************************************************/
|
| 2818 |
/* PCI IDE definitions */
|
| 2819 |
|
| 2820 |
static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb) |
| 2821 |
{
|
| 2822 |
BMDMAState *bm = s->bus->bmdma; |
| 2823 |
if(!bm)
|
| 2824 |
return;
|
| 2825 |
bm->unit = s->unit; |
| 2826 |
bm->dma_cb = dma_cb; |
| 2827 |
bm->cur_prd_last = 0;
|
| 2828 |
bm->cur_prd_addr = 0;
|
| 2829 |
bm->cur_prd_len = 0;
|
| 2830 |
bm->sector_num = ide_get_sector(s); |
| 2831 |
bm->nsector = s->nsector; |
| 2832 |
if (bm->status & BM_STATUS_DMAING) {
|
| 2833 |
bm->dma_cb(bm, 0);
|
| 2834 |
} |
| 2835 |
} |
| 2836 |
|
| 2837 |
static void ide_dma_restart(IDEState *s, int is_read) |
| 2838 |
{
|
| 2839 |
BMDMAState *bm = s->bus->bmdma; |
| 2840 |
ide_set_sector(s, bm->sector_num); |
| 2841 |
s->io_buffer_index = 0;
|
| 2842 |
s->io_buffer_size = 0;
|
| 2843 |
s->nsector = bm->nsector; |
| 2844 |
bm->cur_addr = bm->addr; |
| 2845 |
|
| 2846 |
if (is_read) {
|
| 2847 |
bm->dma_cb = ide_read_dma_cb; |
| 2848 |
} else {
|
| 2849 |
bm->dma_cb = ide_write_dma_cb; |
| 2850 |
} |
| 2851 |
|
| 2852 |
ide_dma_start(s, bm->dma_cb); |
| 2853 |
} |
| 2854 |
|
| 2855 |
void ide_dma_cancel(BMDMAState *bm)
|
| 2856 |
{
|
| 2857 |
if (bm->status & BM_STATUS_DMAING) {
|
| 2858 |
if (bm->aiocb) {
|
| 2859 |
#ifdef DEBUG_AIO
|
| 2860 |
printf("aio_cancel\n");
|
| 2861 |
#endif
|
| 2862 |
bdrv_aio_cancel(bm->aiocb); |
| 2863 |
bm->aiocb = NULL;
|
| 2864 |
} |
| 2865 |
bm->status &= ~BM_STATUS_DMAING; |
| 2866 |
/* cancel DMA request */
|
| 2867 |
bm->unit = -1;
|
| 2868 |
bm->dma_cb = NULL;
|
| 2869 |
} |
| 2870 |
} |
| 2871 |
|
| 2872 |
void ide_dma_reset(BMDMAState *bm)
|
| 2873 |
{
|
| 2874 |
#ifdef DEBUG_IDE
|
| 2875 |
printf("ide: dma_reset\n");
|
| 2876 |
#endif
|
| 2877 |
ide_dma_cancel(bm); |
| 2878 |
bm->cmd = 0;
|
| 2879 |
bm->status = 0;
|
| 2880 |
bm->addr = 0;
|
| 2881 |
bm->cur_addr = 0;
|
| 2882 |
bm->cur_prd_last = 0;
|
| 2883 |
bm->cur_prd_addr = 0;
|
| 2884 |
bm->cur_prd_len = 0;
|
| 2885 |
bm->sector_num = 0;
|
| 2886 |
bm->nsector = 0;
|
| 2887 |
} |