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ide: enable single word DMA, by Stefano Stabellini. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4890 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2008-07-18 16:49:42 +00:00
parent b68558517e
commit d1b5c20dcd
1 changed files with 10 additions and 0 deletions
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10
hw/ide.c
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@ -569,6 +569,7 @@ static void ide_identify(IDEState *s)
put_le16(p + 59, 0x100 | s->mult_sectors);
put_le16(p + 60, s->nb_sectors);
put_le16(p + 61, s->nb_sectors >> 16);
put_le16(p + 62, 0x07); /* single word dma0-2 supported */
put_le16(p + 63, 0x07); /* mdma0-2 supported */
put_le16(p + 65, 120);
put_le16(p + 66, 120);
@ -620,6 +621,7 @@ static void ide_atapi_identify(IDEState *s)
#ifdef USE_DMA_CDROM
put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */
put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */
put_le16(p + 62, 7); /* single word dma0-2 supported */
put_le16(p + 63, 7); /* mdma0-2 supported */
put_le16(p + 64, 0x3f); /* PIO modes supported */
#else
@ -2194,14 +2196,22 @@ static void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val)
switch (s->nsector >> 3) {
case 0x00: /* pio default */
case 0x01: /* pio mode */
put_le16(s->identify_data + 62,0x07);
put_le16(s->identify_data + 63,0x07);
put_le16(s->identify_data + 88,0x3f);
break;
case 0x02: /* sigle word dma mode*/
put_le16(s->identify_data + 62,0x07 | (1 << (val + 8)));
put_le16(s->identify_data + 63,0x07);
put_le16(s->identify_data + 88,0x3f);
break;
case 0x04: /* mdma mode */
put_le16(s->identify_data + 62,0x07);
put_le16(s->identify_data + 63,0x07 | (1 << (val + 8)));
put_le16(s->identify_data + 88,0x3f);
break;
case 0x08: /* udma mode */
put_le16(s->identify_data + 62,0x07);
put_le16(s->identify_data + 63,0x07);
put_le16(s->identify_data + 88,0x3f | (1 << (val + 8)));
break;