X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fata.h;h=e31377a3f329c213bc9cd5c22b373bce95c4415e;hb=a7dc3322984b3c76fe990de506418e180ec1b0de;hp=b759f0bfc2205a4c4d491d7ce1220ef149ddffcb;hpb=6661dd1d2aa547ae248e816dcd4201bcbcb7fee0;p=palacios.git

diff --git a/palacios/src/devices/ata.h b/palacios/src/devices/ata.h
index b759f0b..e31377a 100644
--- a/palacios/src/devices/ata.h
+++ b/palacios/src/devices/ata.h
@@ -17,6 +17,8 @@
  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  */
 
+#define MAX_MULT_SECTORS  255
+
 
 static void ata_identify_device(struct ide_drive * drive) {
     struct ide_drive_id * drive_id = (struct ide_drive_id *)(drive->data_buf);
@@ -54,6 +56,7 @@ static void ata_identify_device(struct ide_drive * drive) {
     // 32 bits access
     drive_id->dword_io = 1;
 
+
     // enable DMA access
     drive_id->dma_enable = 1;
 
@@ -66,14 +69,21 @@ static void ata_identify_device(struct ide_drive * drive) {
     // Drive Capacity (48 bit LBA)
     drive_id->lba_capacity_2 = drive->hd_ops->get_capacity(drive->private_data);
 
-    drive_id->rw_multiples = 0x80ff;
+
+    // lower byte is the maximum multiple sector size...
+    drive_id->rw_multiples = 0x8000 | MAX_MULT_SECTORS;
+
+
 
     // words 64-70, 54-58 valid
     drive_id->field_valid = 0x0007; // DMA + pkg cmd valid
 
+
     // copied from CFA540A
-    drive_id->buf[63] = 0x0103; // variable (DMA stuff)
+    // drive_id->buf[63] = 0x0103; // variable (DMA stuff)
     //drive_id->buf[63] = 0x0000; // variable (DMA stuff)
+    drive_id->buf[63] = 0x0007;
+
     
     //    drive_id->buf[64] = 0x0001; // PIO
     drive_id->buf[65] = 0x00b4;
@@ -87,14 +97,16 @@ static void ata_identify_device(struct ide_drive * drive) {
     //    drive_id->buf[80] = 0x1e; // supports up to ATA/ATAPI-4
     drive_id->major_rev_num = 0x0040; // supports up to ATA/ATAPI-6
 
+
     drive_id->buf[83] |= 0x0400; // supports 48 bit LBA
 
 
     drive_id->dma_ultra = 0x2020; // Ultra_DMA_Mode_5_Selected | Ultra_DMA_Mode_5_Supported;
+
 }
 
 
-static int ata_read(struct vm_device * dev, struct ide_channel * channel) {
+static int ata_read(struct vm_device * dev, struct ide_channel * channel, uint8_t * dst, uint_t sect_cnt) {
     struct ide_drive * drive = get_selected_drive(channel);
 
     if (drive->hd_state.accessed == 0) {
@@ -102,7 +114,7 @@ static int ata_read(struct vm_device * dev, struct ide_channel * channel) {
 	drive->hd_state.accessed = 1;
     }
 
-    int ret = drive->hd_ops->read(drive->data_buf, 1, drive->current_lba, drive->private_data);
+    int ret = drive->hd_ops->read(dst, sect_cnt, drive->current_lba, drive->private_data);
     
     if (ret == -1) {
 	PrintError("IDE: Error reading HD block (LBA=%p)\n", (void *)(addr_t)(drive->current_lba));
@@ -137,9 +149,6 @@ static int ata_read_sectors(struct vm_device * dev, struct ide_channel * channel
     lba_addr.buf[2] = drive->lba2;
     lba_addr.buf[3] = channel->drive_head.lba3;
 
-    PrintDebug("LBA Address %d\n", drive->lba0);
-    PrintDebug("sector_num %d\n", drive->sector_num);
-
 
     if (lba_addr.addr + (sect_cnt * IDE_SECTOR_SIZE) > 
 	drive->hd_ops->get_capacity(drive->private_data)) {
@@ -153,7 +162,7 @@ static int ata_read_sectors(struct vm_device * dev, struct ide_channel * channel
 
     drive->current_lba = lba_addr.addr;
     
-    if (ata_read(dev, channel) == -1) {
+    if (ata_read(dev, channel, drive->data_buf, 1) == -1) {
 	PrintError("Could not read disk sector\n");
 	return -1;
     }