#include "ata.h" // ATA_*
#include "types.h" // u8
#include "ioport.h" // inb
-#include "util.h" // BX_INFO
+#include "util.h" // dprintf
#include "cmos.h" // inb_cmos
+#include "pic.h" // enable_hwirq
+#include "biosvar.h" // GET_EBDA
+#include "pci.h" // pci_find_class
+#include "pci_ids.h" // PCI_CLASS_STORAGE_OTHER
+#include "pci_regs.h" // PCI_INTERRUPT_LINE
+#include "disk.h" // struct ata_s
#define TIMEOUT 0
#define BSY 1
#define NOT_BSY_NOT_DRQ 4
#define NOT_BSY_RDY 5
+#define IDE_SECTOR_SIZE 512
+#define CDROM_SECTOR_SIZE 2048
+
#define IDE_TIMEOUT 32000u //32 seconds max for IDE ops
-#define DEBUGF1(fmt, args...) bprintf(0, fmt , ##args)
-#define DEBUGF(fmt, args...)
+struct ata_s ATA VAR16;
+
-// XXX - lots of redundancy in this file.
+/****************************************************************
+ * Helper functions
+ ****************************************************************/
+// Wait for the specified ide state
static int
await_ide(u8 when_done, u16 base, u16 timeout)
{
- u32 time=0, last=0;
- // for the times you're supposed to throw one away
- u16 status = inb(base + ATA_CB_STAT);
+ u64 end = calc_future_tsc(timeout);
for (;;) {
- status = inb(base+ATA_CB_STAT);
- time++;
- u8 result;
+ u8 status = inb(base+ATA_CB_STAT);
+ u8 result = 0;
if (when_done == BSY)
result = status & ATA_CB_STAT_BSY;
else if (when_done == NOT_BSY)
result = !(status & ATA_CB_STAT_BSY) && !(status & ATA_CB_STAT_DRQ);
else if (when_done == NOT_BSY_RDY)
result = !(status & ATA_CB_STAT_BSY) && (status & ATA_CB_STAT_RDY);
- else if (when_done == TIMEOUT)
- result = 0;
if (result)
- return 0;
- // mod 2048 each 16 ms
- if (time>>16 != last) {
- last = time >>16;
- DEBUGF("await_ide: (TIMEOUT,BSY,!BSY,!BSY_DRQ,!BSY_!DRQ,!BSY_RDY)"
- " %d time= %d timeout= %d\n"
- , when_done, time>>11, timeout);
- }
+ return status;
if (status & ATA_CB_STAT_ERR) {
- DEBUGF("await_ide: ERROR (TIMEOUT,BSY,!BSY,!BSY_DRQ"
- ",!BSY_!DRQ,!BSY_RDY) %d time= %d timeout= %d\n"
- , when_done, time>>11, timeout);
+ dprintf(1, "await_ide: ERROR (TIMEOUT,BSY,!BSY,!BSY_DRQ"
+ ",!BSY_!DRQ,!BSY_RDY) %d status=%x timeout=%d\n"
+ , when_done, status, timeout);
return -1;
}
- if ((timeout == 0) || ((time>>11) > timeout))
+ if (rdtscll() >= end)
break;
}
- BX_INFO("IDE time out\n");
- return -1;
+ dprintf(1, "IDE time out\n");
+ return -2;
}
+// Wait for ide state - pauses for one ata cycle first.
+static __always_inline int
+pause_await_ide(u8 when_done, u16 iobase1, u16 iobase2, u16 timeout)
+{
+ // Wait one PIO transfer cycle.
+ inb(iobase2 + ATA_CB_ASTAT);
-// ---------------------------------------------------------------------------
-// ATA/ATAPI driver : software reset
-// ---------------------------------------------------------------------------
-// ATA-3
-// 8.2.1 Software reset - Device 0
+ return await_ide(when_done, iobase1, timeout);
+}
-void
-ata_reset(u16 device)
+// Wait for ide state - pause for 400ns first.
+static __always_inline int
+ndelay_await_ide(u8 when_done, u16 iobase1, u16 timeout)
{
- u16 iobase1, iobase2;
- u8 channel, slave, sn, sc;
- u8 type;
-
- channel = device / 2;
- slave = device % 2;
+ ndelay(400);
+ return await_ide(when_done, iobase1, timeout);
+}
- iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- iobase2 = GET_EBDA(ata.channels[channel].iobase2);
+// Reset a drive
+void
+ata_reset(int driveid)
+{
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
// Reset
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN | ATA_CB_DC_SRST, iobase2+ATA_CB_DC);
// 8.2.1 (b) -- wait for BSY
- await_ide(BSY, iobase1, 20);
+ int status = await_ide(BSY, iobase1, 20);
+ dprintf(6, "ata_reset(1) status=%x\n", status);
// 8.2.1 (f) -- clear SRST
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN, iobase2+ATA_CB_DC);
- type=GET_EBDA(ata.devices[device].type);
- if (type != ATA_TYPE_NONE) {
-
- // 8.2.1 (g) -- check for sc==sn==0x01
- // select device
- outb(slave?ATA_CB_DH_DEV1:ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
- sc = inb(iobase1+ATA_CB_SC);
- sn = inb(iobase1+ATA_CB_SN);
-
- if ( (sc==0x01) && (sn==0x01) ) {
- if (type == ATA_TYPE_ATA) //ATA
- await_ide(NOT_BSY_RDY, iobase1, IDE_TIMEOUT);
- else //ATAPI
- await_ide(NOT_BSY, iobase1, IDE_TIMEOUT);
- }
-
- // 8.2.1 (h) -- wait for not BSY
- await_ide(NOT_BSY, iobase1, IDE_TIMEOUT);
+ // 8.2.1 (g) -- check for sc==sn==0x01
+ // select device
+ outb(slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
+ mdelay(50);
+ u8 sc = inb(iobase1+ATA_CB_SC);
+ u8 sn = inb(iobase1+ATA_CB_SN);
+
+ // For predetermined ATA drives - wait for ready.
+ if (sc==0x01 && sn==0x01) {
+ u8 type=GET_GLOBAL(ATA.devices[driveid].type);
+ if (type == ATA_TYPE_ATA)
+ await_ide(NOT_BSY_RDY, iobase1, IDE_TIMEOUT);
}
+ // 8.2.1 (h) -- wait for not BSY
+ status = await_ide(NOT_BSY, iobase1, IDE_TIMEOUT);
+ dprintf(6, "ata_reset(2) status=%x\n", status);
+
// Enable interrupts
outb(ATA_CB_DC_HD15, iobase2+ATA_CB_DC);
}
-// ---------------------------------------------------------------------------
-// ATA/ATAPI driver : execute a data command
-// ---------------------------------------------------------------------------
- // returns
- // 0 : no error
- // 1 : BUSY bit set
- // 2 : read error
- // 3 : expected DRQ=1
- // 4 : no sectors left to read/verify
- // 5 : more sectors to read/verify
- // 6 : no sectors left to write
- // 7 : more sectors to write
-
+/****************************************************************
+ * ATA send command
+ ****************************************************************/
+
+struct ata_op_s {
+ u64 lba;
+ void *far_buffer;
+ u16 driveid;
+ u16 count;
+};
+
+struct ata_pio_command {
+ u8 feature;
+ u8 sector_count;
+ u8 lba_low;
+ u8 lba_mid;
+ u8 lba_high;
+ u8 device;
+ u8 command;
+
+ u8 sector_count2;
+ u8 lba_low2;
+ u8 lba_mid2;
+ u8 lba_high2;
+};
+
+// Send an ata command to the drive.
static int
-send_cmd(struct ata_pio_command *cmd)
+send_cmd(int driveid, struct ata_pio_command *cmd)
{
- u16 biosid = cmd->biosid;
- u8 channel = biosid / 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
+ u8 channel = driveid / 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
- u8 status = inb(iobase1 + ATA_CB_STAT);
+ int status = inb(iobase1 + ATA_CB_STAT);
if (status & ATA_CB_STAT_BSY)
- return 1;
+ return -3;
+ // Disable interrupts
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN, iobase2 + ATA_CB_DC);
+
+ // Select device
+ u8 device = inb(iobase1 + ATA_CB_DH);
+ outb(cmd->device, iobase1 + ATA_CB_DH);
+ if ((device ^ cmd->device) & (1 << 4))
+ // Wait for device to become active.
+ mdelay(50);
+
if (cmd->command & 0x04) {
outb(0x00, iobase1 + ATA_CB_FR);
outb(cmd->sector_count2, iobase1 + ATA_CB_SC);
outb(cmd->lba_low, iobase1 + ATA_CB_SN);
outb(cmd->lba_mid, iobase1 + ATA_CB_CL);
outb(cmd->lba_high, iobase1 + ATA_CB_CH);
- outb(cmd->device, iobase1 + ATA_CB_DH);
outb(cmd->command, iobase1 + ATA_CB_CMD);
- await_ide(NOT_BSY_DRQ, iobase1, IDE_TIMEOUT);
+ status = ndelay_await_ide(NOT_BSY_DRQ, iobase1, IDE_TIMEOUT);
+ if (status < 0)
+ return status;
- status = inb(iobase1 + ATA_CB_STAT);
if (status & ATA_CB_STAT_ERR) {
- DEBUGF("send_cmd : read error\n");
- return 2;
+ dprintf(6, "send_cmd : read error\n");
+ return -4;
}
if (!(status & ATA_CB_STAT_DRQ)) {
- DEBUGF("send_cmd : DRQ not set (status %02x)\n"
- , (unsigned) status);
- return 3;
+ dprintf(6, "send_cmd : DRQ not set (status %02x)\n"
+ , (unsigned) status);
+ return -5;
}
return 0;
}
-int
-ata_transfer(struct ata_pio_command *cmd)
-{
- DEBUGF("ata_transfer id=%d cmd=%d lba=%d count=%d buf=%p\n"
- , cmd->biosid, cmd->command
- , (cmd->lba_high << 16) | (cmd->lba_mid << 8) | cmd->lba_low
- , cmd->sector_count, cmd->far_buffer);
- // Reset count of transferred data
- SET_EBDA(ata.trsfsectors,0);
- SET_EBDA(ata.trsfbytes,0L);
+/****************************************************************
+ * ATA transfers
+ ****************************************************************/
- int ret = send_cmd(cmd);
- if (ret)
- return ret;
+// Read and discard x number of bytes from an io channel.
+static void
+insx_discard(int mode, int iobase1, int bytes)
+{
+ int count, i;
+ if (mode == ATA_MODE_PIO32) {
+ count = bytes / 4;
+ for (i=0; i<count; i++)
+ inl(iobase1);
+ } else {
+ count = bytes / 2;
+ for (i=0; i<count; i++)
+ inw(iobase1);
+ }
+}
+
+// Transfer 'count' blocks (of 'blocksize' bytes) to/from drive
+// 'driveid'. If 'skipfirst' or 'skiplast' is set then the first
+// and/or last block may be partially transferred. This function is
+// inlined because all the callers use different forms and because the
+// large number of parameters would consume a lot of stack space.
+static __always_inline int
+ata_transfer(int driveid, int iswrite, int count, int blocksize
+ , int skipfirst, int skiplast, void *far_buffer)
+{
+ dprintf(16, "ata_transfer id=%d write=%d count=%d bs=%d"
+ " skipf=%d skipl=%d buf=%p\n"
+ , driveid, iswrite, count, blocksize
+ , skipfirst, skiplast, far_buffer);
- u16 biosid = cmd->biosid;
- u8 channel = biosid / 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
- u8 mode = GET_EBDA(ata.devices[biosid].mode);
- int iswrite = (cmd->command & ~0x40) == ATA_CMD_WRITE_SECTORS;
- u8 current = 0;
- u16 count = cmd->sector_count;
- u8 status;
- void *far_buffer = cmd->far_buffer;
+ // Reset count of transferred data
+ SET_EBDA(sector_count, 0);
+
+ u8 channel = driveid / 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
+ u8 mode = GET_GLOBAL(ATA.devices[driveid].mode);
+ int current = 0;
+ int status;
for (;;) {
+ int bsize = blocksize;
+ if (skipfirst && current == 0) {
+ insx_discard(mode, iobase1, skipfirst);
+ bsize -= skipfirst;
+ }
+ if (skiplast && current == count-1)
+ bsize -= skiplast;
+
if (iswrite) {
// Write data to controller
- DEBUGF("Write sector id=%d dest=%p\n", biosid, far_buffer);
+ dprintf(16, "Write sector id=%d dest=%p\n", driveid, far_buffer);
if (mode == ATA_MODE_PIO32)
- outsl_far(iobase1, far_buffer, 512 / 4);
+ outsl_far(iobase1, far_buffer, bsize / 4);
else
- outsw_far(iobase1, far_buffer, 512 / 2);
+ outsw_far(iobase1, far_buffer, bsize / 2);
} else {
// Read data from controller
- DEBUGF("Read sector id=%d dest=%p\n", biosid, far_buffer);
+ dprintf(16, "Read sector id=%d dest=%p\n", driveid, far_buffer);
if (mode == ATA_MODE_PIO32)
- insl_far(iobase1, far_buffer, 512 / 4);
+ insl_far(iobase1, far_buffer, bsize / 4);
else
- insw_far(iobase1, far_buffer, 512 / 2);
- await_ide(NOT_BSY, iobase1, IDE_TIMEOUT);
+ insw_far(iobase1, far_buffer, bsize / 2);
}
- far_buffer += 512;
+ far_buffer += bsize;
+
+ if (skiplast && current == count-1)
+ insx_discard(mode, iobase1, skiplast);
+
+ status = pause_await_ide(NOT_BSY, iobase1, iobase2, IDE_TIMEOUT);
+ if (status < 0)
+ // Error
+ return status;
current++;
- SET_EBDA(ata.trsfsectors,current);
- count--;
- status = inb(iobase1 + ATA_CB_STAT);
- if (count == 0)
+ SET_EBDA(sector_count, current);
+ if (current == count)
break;
status &= (ATA_CB_STAT_BSY | ATA_CB_STAT_RDY | ATA_CB_STAT_DRQ
| ATA_CB_STAT_ERR);
if (status != (ATA_CB_STAT_RDY | ATA_CB_STAT_DRQ)) {
- DEBUGF("ata_transfer : more sectors left (status %02x)\n"
- , (unsigned) status);
- return 5;
+ dprintf(6, "ata_transfer : more sectors left (status %02x)\n"
+ , (unsigned) status);
+ return -6;
}
}
if (!iswrite)
status &= ~ATA_CB_STAT_DF;
if (status != ATA_CB_STAT_RDY ) {
- DEBUGF("ata_transfer : no sectors left (status %02x)\n"
- , (unsigned) status);
- return 4;
+ dprintf(6, "ata_transfer : no sectors left (status %02x)\n"
+ , (unsigned) status);
+ return -7;
}
// Enable interrupts
return 0;
}
-// ---------------------------------------------------------------------------
-// ATA/ATAPI driver : execute a packet command
-// ---------------------------------------------------------------------------
- // returns
- // 0 : no error
- // 1 : error in parameters
- // 2 : BUSY bit set
- // 3 : error
- // 4 : not ready
-int
-ata_cmd_packet(u16 biosid, u8 *cmdbuf, u8 cmdlen
- , u16 header, u32 length, void *far_buffer)
+static noinline int
+ata_transfer_disk(const struct ata_op_s *op, int iswrite)
{
- DEBUGF("ata_cmd_packet d=%d cmdlen=%d h=%d l=%d buf=%p\n"
- , biosid, cmdlen, header, length, far_buffer);
+ return ata_transfer(op->driveid, iswrite, op->count, IDE_SECTOR_SIZE
+ , 0, 0, op->far_buffer);
+}
- u8 channel = biosid / 2;
- u8 slave = biosid % 2;
+static noinline int
+ata_transfer_cdrom(const struct ata_op_s *op)
+{
+ return ata_transfer(op->driveid, 0, op->count, CDROM_SECTOR_SIZE
+ , 0, 0, op->far_buffer);
+}
- // The header length must be even
- if (header & 1) {
- DEBUGF("ata_cmd_packet : header must be even (%04x)\n", header);
- return 1;
+static noinline int
+ata_transfer_emu(const struct ata_op_s *op, int before, int after)
+{
+ int vcount = op->count * 4 - before - after;
+ int ret = ata_transfer(op->driveid, 0, op->count, CDROM_SECTOR_SIZE
+ , before*512, after*512, op->far_buffer);
+ if (ret) {
+ SET_EBDA(sector_count, 0);
+ return ret;
}
+ SET_EBDA(sector_count, vcount);
+ return 0;
+}
+
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
- u8 mode = GET_EBDA(ata.devices[biosid].mode);
+/****************************************************************
+ * ATA hard drive functions
+ ****************************************************************/
+
+static noinline int
+send_cmd_disk(const struct ata_op_s *op, u16 command)
+{
+ u8 slave = op->driveid % 2;
+ u64 lba = op->lba;
struct ata_pio_command cmd;
- cmd.sector_count = 0;
+ memset(&cmd, 0, sizeof(cmd));
+
+ cmd.command = command;
+ if (op->count >= (1<<8) || lba + op->count >= (1<<28)) {
+ cmd.sector_count2 = op->count >> 8;
+ cmd.lba_low2 = lba >> 24;
+ cmd.lba_mid2 = lba >> 32;
+ cmd.lba_high2 = lba >> 40;
+
+ cmd.command |= 0x04;
+ lba &= 0xffffff;
+ }
+
cmd.feature = 0;
- cmd.lba_low = 0;
- cmd.lba_mid = 0xf0;
- cmd.lba_high = 0xff;
- cmd.device = slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0;
- cmd.command = ATA_CMD_PACKET;
+ cmd.sector_count = op->count;
+ cmd.lba_low = lba;
+ cmd.lba_mid = lba >> 8;
+ cmd.lba_high = lba >> 16;
+ cmd.device = ((slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0)
+ | ((lba >> 24) & 0xf) | ATA_CB_DH_LBA);
+
+ return send_cmd(op->driveid, &cmd);
+}
+
+// Read/write count blocks from a harddrive.
+__always_inline int
+ata_cmd_data(int driveid, u16 command, u64 lba, u16 count, void *far_buffer)
+{
+ struct ata_op_s op;
+ op.driveid = driveid;
+ op.lba = lba;
+ op.count = count;
+ op.far_buffer = far_buffer;
- cmd.biosid = biosid;
- int ret = send_cmd(&cmd);
+ int ret = send_cmd_disk(&op, command);
if (ret)
return ret;
- // Reset count of transferred data
- SET_EBDA(ata.trsfsectors,0);
- SET_EBDA(ata.trsfbytes,0L);
-
- // Send command to device
- outsw_far(iobase1, MAKE_32_PTR(GET_SEG(SS), (u32)cmdbuf), cmdlen / 2);
-
- u8 status;
- u16 loops = 0;
- for (;;) {
- if (loops == 0) {//first time through
- status = inb(iobase2 + ATA_CB_ASTAT);
- await_ide(NOT_BSY_DRQ, iobase1, IDE_TIMEOUT);
- } else
- await_ide(NOT_BSY, iobase1, IDE_TIMEOUT);
- loops++;
-
- status = inb(iobase1 + ATA_CB_STAT);
- inb(iobase1 + ATA_CB_SC);
-
- // Check if command completed
- if(((inb(iobase1 + ATA_CB_SC)&0x7)==0x3) &&
- ((status & (ATA_CB_STAT_RDY | ATA_CB_STAT_ERR)) == ATA_CB_STAT_RDY))
- break;
+ int iswrite = command == ATA_CMD_WRITE_SECTORS;
+ return ata_transfer_disk(&op, iswrite);
+}
- if (status & ATA_CB_STAT_ERR) {
- DEBUGF("ata_cmd_packet : error (status %02x)\n", status);
- return 3;
- }
- // Get the byte count
- u16 lcount = (((u16)(inb(iobase1 + ATA_CB_CH))<<8)
- + inb(iobase1 + ATA_CB_CL));
+/****************************************************************
+ * ATAPI functions
+ ****************************************************************/
- // adjust to read what we want
- u16 lbefore, lafter;
- if (header > lcount) {
- lbefore=lcount;
- header-=lcount;
- lcount=0;
- } else {
- lbefore=header;
- header=0;
- lcount-=lbefore;
- }
+// Low-level atapi command transmit function.
+static __always_inline int
+send_atapi_cmd(int driveid, u8 *cmdbuf, u8 cmdlen, u16 blocksize)
+{
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
- if (lcount > length) {
- lafter=lcount-length;
- lcount=length;
- length=0;
- } else {
- lafter=0;
- length-=lcount;
- }
+ struct ata_pio_command cmd;
+ cmd.sector_count = 0;
+ cmd.feature = 0;
+ cmd.lba_low = 0;
+ cmd.lba_mid = blocksize;
+ cmd.lba_high = blocksize >> 8;
+ cmd.device = slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0;
+ cmd.command = ATA_CMD_PACKET;
- // Save byte count
- u16 count = lcount;
+ int ret = send_cmd(driveid, &cmd);
+ if (ret)
+ return ret;
- DEBUGF("Trying to read %04x bytes (%04x %04x %04x) to %p\n"
- , lbefore+lcount+lafter, lbefore, lcount, lafter, far_buffer);
+ // Send command to device
+ outsw_far(iobase1, MAKE_FARPTR(GET_SEG(SS), (u32)cmdbuf), cmdlen / 2);
- // If counts not dividable by 4, use 16bits mode
- u8 lmode = mode;
- if (lbefore & 0x03) lmode=ATA_MODE_PIO16;
- if (lcount & 0x03) lmode=ATA_MODE_PIO16;
- if (lafter & 0x03) lmode=ATA_MODE_PIO16;
+ int status = pause_await_ide(NOT_BSY_DRQ, iobase1, iobase2, IDE_TIMEOUT);
+ if (status < 0)
+ return status;
- // adds an extra byte if count are odd. before is always even
- if (lcount & 0x01) {
- lcount+=1;
- if ((lafter > 0) && (lafter & 0x01)) {
- lafter-=1;
- }
- }
+ return 0;
+}
- if (lmode == ATA_MODE_PIO32) {
- lcount>>=2; lbefore>>=2; lafter>>=2;
- } else {
- lcount>>=1; lbefore>>=1; lafter>>=1;
- }
+// Low-level cdrom read atapi command transmit function.
+static int
+send_cmd_cdrom(const struct ata_op_s *op)
+{
+ u8 atacmd[12];
+ memset(atacmd, 0, sizeof(atacmd));
- int i;
- for (i=0; i<lbefore; i++)
- if (lmode == ATA_MODE_PIO32)
- inl(iobase1);
- else
- inw(iobase1);
+ atacmd[0]=0x28; // READ command
+ atacmd[7]=(op->count & 0xff00) >> 8; // Sectors
+ atacmd[8]=(op->count & 0x00ff);
+ atacmd[2]=(op->lba & 0xff000000) >> 24; // LBA
+ atacmd[3]=(op->lba & 0x00ff0000) >> 16;
+ atacmd[4]=(op->lba & 0x0000ff00) >> 8;
+ atacmd[5]=(op->lba & 0x000000ff);
- if (lmode == ATA_MODE_PIO32)
- insl_far(iobase1, far_buffer, lcount);
- else
- insw_far(iobase1, far_buffer, lcount);
+ return send_atapi_cmd(op->driveid, atacmd, sizeof(atacmd)
+ , CDROM_SECTOR_SIZE);
+}
- for (i=0; i<lafter; i++)
- if (lmode == ATA_MODE_PIO32)
- inl(iobase1);
- else
- inw(iobase1);
+// Read sectors from the cdrom.
+__always_inline int
+cdrom_read(int driveid, u32 lba, u32 count, void *far_buffer)
+{
+ struct ata_op_s op;
+ op.driveid = driveid;
+ op.lba = lba;
+ op.count = count;
+ op.far_buffer = far_buffer;
- // Compute new buffer address
- far_buffer += count;
+ int ret = send_cmd_cdrom(&op);
+ if (ret)
+ return ret;
- // Save transferred bytes count
- SET_EBDA(ata.trsfsectors, loops);
- }
+ return ata_transfer_cdrom(&op);
+}
- // Final check, device must be ready
- if ( (status & (ATA_CB_STAT_BSY | ATA_CB_STAT_RDY | ATA_CB_STAT_DF
- | ATA_CB_STAT_DRQ | ATA_CB_STAT_ERR) )
- != ATA_CB_STAT_RDY ) {
- DEBUGF("ata_cmd_packet : not ready (status %02x)\n"
- , (unsigned) status);
- return 4;
- }
+// Pretend the cdrom has 512 byte sectors (instead of 2048) and read
+// sectors.
+__always_inline int
+cdrom_read_512(int driveid, u32 vlba, u32 vcount, void *far_buffer)
+{
+ u32 velba = vlba + vcount - 1;
+ u32 lba = vlba / 4;
+ u32 elba = velba / 4;
+ int count = elba - lba + 1;
+ int before = vlba % 4;
+ int after = 3 - (velba % 4);
+
+ struct ata_op_s op;
+ op.driveid = driveid;
+ op.lba = lba;
+ op.count = count;
+ op.far_buffer = far_buffer;
+
+ dprintf(16, "cdrom_read_512: id=%d vlba=%d vcount=%d buf=%p lba=%d elba=%d"
+ " count=%d before=%d after=%d\n"
+ , driveid, vlba, vcount, far_buffer, lba, elba
+ , count, before, after);
+
+ int ret = send_cmd_cdrom(&op);
+ if (ret)
+ return ret;
- // Enable interrupts
- outb(ATA_CB_DC_HD15, iobase2+ATA_CB_DC);
- return 0;
+ return ata_transfer_emu(&op, before, after);
}
+// Send a simple atapi command to a drive.
int
-cdrom_read(u16 biosid, u32 lba, u32 count, void *far_buffer, u16 skip)
+ata_cmd_packet(int driveid, u8 *cmdbuf, u8 cmdlen
+ , u32 length, void *far_buffer)
{
- u16 sectors = (count + 2048 - 1) / 2048;
+ int ret = send_atapi_cmd(driveid, cmdbuf, cmdlen, length);
+ if (ret)
+ return ret;
- u8 atacmd[12];
- memset(atacmd, 0, sizeof(atacmd));
- atacmd[0]=0x28; // READ command
- atacmd[7]=(sectors & 0xff00) >> 8; // Sectors
- atacmd[8]=(sectors & 0x00ff); // Sectors
- atacmd[2]=(lba & 0xff000000) >> 24; // LBA
- atacmd[3]=(lba & 0x00ff0000) >> 16;
- atacmd[4]=(lba & 0x0000ff00) >> 8;
- atacmd[5]=(lba & 0x000000ff);
-
- return ata_cmd_packet(biosid, atacmd, sizeof(atacmd)
- , skip, count, far_buffer);
+ return ata_transfer(driveid, 0, 1, length, 0, 0, far_buffer);
}
-// ---------------------------------------------------------------------------
-// ATA/ATAPI driver : device detection
-// ---------------------------------------------------------------------------
+
+/****************************************************************
+ * ATA detect and init
+ ****************************************************************/
static void
-report_model(u8 devid, u8 *buffer)
+report_model(int driveid, u8 *buffer)
{
u8 model[41];
model[i] = 0x00;
}
- u8 channel = devid / 2;
- u8 slave = devid % 2;
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
// XXX - model on stack not %cs
printf("ata%d %s: %s", channel, slave ? " slave" : "master", model);
}
}
static void
-init_drive_atapi(u8 devid)
+init_drive_atapi(int driveid)
{
- SET_EBDA(ata.devices[devid].type,ATA_TYPE_ATAPI);
+ SET_GLOBAL(ATA.devices[driveid].type, ATA_TYPE_ATAPI);
// Temporary values to do the transfer
- SET_EBDA(ata.devices[devid].device,ATA_DEVICE_CDROM);
- SET_EBDA(ata.devices[devid].mode, ATA_MODE_PIO16);
+ SET_GLOBAL(ATA.devices[driveid].device,ATA_DEVICE_CDROM);
+ SET_GLOBAL(ATA.devices[driveid].mode, ATA_MODE_PIO16);
// Now we send a IDENTIFY command to ATAPI device
u8 buffer[0x0200];
memset(buffer, 0, sizeof(buffer));
- u16 ret = ata_cmd_data(devid, ATA_CMD_IDENTIFY_DEVICE_PACKET
+ u16 ret = ata_cmd_data(driveid, ATA_CMD_IDENTIFY_DEVICE_PACKET
, 1, 1
- , MAKE_32_PTR(GET_SEG(SS), (u32)buffer));
+ , MAKE_FARPTR(GET_SEG(SS), (u32)buffer));
if (ret != 0)
BX_PANIC("ata-detect: Failed to detect ATAPI device\n");
u8 type = buffer[1] & 0x1f;
u8 removable = (buffer[0] & 0x80) ? 1 : 0;
u8 mode = buffer[96] ? ATA_MODE_PIO32 : ATA_MODE_PIO16;
- u16 blksize = 2048;
+ u16 blksize = CDROM_SECTOR_SIZE;
- SET_EBDA(ata.devices[devid].device, type);
- SET_EBDA(ata.devices[devid].removable, removable);
- SET_EBDA(ata.devices[devid].mode, mode);
- SET_EBDA(ata.devices[devid].blksize, blksize);
+ SET_GLOBAL(ATA.devices[driveid].device, type);
+ SET_GLOBAL(ATA.devices[driveid].removable, removable);
+ SET_GLOBAL(ATA.devices[driveid].mode, mode);
+ SET_GLOBAL(ATA.devices[driveid].blksize, blksize);
// fill cdidmap
- u8 cdcount = GET_EBDA(ata.cdcount);
- SET_EBDA(ata.idmap[1][cdcount], devid);
- SET_EBDA(ata.cdcount, ++cdcount);
+ u8 cdcount = GET_GLOBAL(ATA.cdcount);
+ SET_GLOBAL(ATA.idmap[1][cdcount], driveid);
+ SET_GLOBAL(ATA.cdcount, ++cdcount);
- report_model(devid, buffer);
+ report_model(driveid, buffer);
u8 version = get_ata_version(buffer);
- if (GET_EBDA(ata.devices[devid].device)==ATA_DEVICE_CDROM)
+ if (GET_GLOBAL(ATA.devices[driveid].device)==ATA_DEVICE_CDROM)
printf(" ATAPI-%d CD-Rom/DVD-Rom\n", version);
else
printf(" ATAPI-%d Device\n", version);
}
static void
-init_drive_ata(u8 devid)
+fill_fdpt(int driveid)
{
- SET_EBDA(ata.devices[devid].type,ATA_TYPE_ATA);
-
- // Temporary values to do the transfer
- SET_EBDA(ata.devices[devid].device, ATA_DEVICE_HD);
- SET_EBDA(ata.devices[devid].mode, ATA_MODE_PIO16);
-
- // Now we send a IDENTIFY command to ATA device
- u8 buffer[0x0200];
- memset(buffer, 0, sizeof(buffer));
- u16 ret = ata_cmd_data(devid, ATA_CMD_IDENTIFY_DEVICE
- , 1, 1
- , MAKE_32_PTR(GET_SEG(SS), (u32)buffer));
- if (ret)
- BX_PANIC("ata-detect: Failed to detect ATA device\n");
-
- u8 removable = (buffer[0] & 0x80) ? 1 : 0;
- u8 mode = buffer[96] ? ATA_MODE_PIO32 : ATA_MODE_PIO16;
- u16 blksize = *(u16*)&buffer[10];
+ if (driveid > 1)
+ return;
+
+ u16 nlc = GET_GLOBAL(ATA.devices[driveid].lchs.cylinders);
+ u16 nlh = GET_GLOBAL(ATA.devices[driveid].lchs.heads);
+ u16 nlspt = GET_GLOBAL(ATA.devices[driveid].lchs.spt);
+
+ u16 npc = GET_GLOBAL(ATA.devices[driveid].pchs.cylinders);
+ u16 nph = GET_GLOBAL(ATA.devices[driveid].pchs.heads);
+ u16 npspt = GET_GLOBAL(ATA.devices[driveid].pchs.spt);
+
+ struct extended_bios_data_area_s *ebda = get_ebda_ptr();
+ ebda->fdpt[driveid].precompensation = 0xffff;
+ ebda->fdpt[driveid].drive_control_byte = 0xc0 | ((nph > 8) << 3);
+ ebda->fdpt[driveid].landing_zone = npc;
+ ebda->fdpt[driveid].cylinders = nlc;
+ ebda->fdpt[driveid].heads = nlh;
+ ebda->fdpt[driveid].sectors = nlspt;
+
+ if (nlc == npc && nlh == nph && nlspt == npspt)
+ // no logical CHS mapping used, just physical CHS
+ // use Standard Fixed Disk Parameter Table (FDPT)
+ return;
+
+ // complies with Phoenix style Translated Fixed Disk Parameter
+ // Table (FDPT)
+ ebda->fdpt[driveid].phys_cylinders = npc;
+ ebda->fdpt[driveid].phys_heads = nph;
+ ebda->fdpt[driveid].phys_sectors = npspt;
+ ebda->fdpt[driveid].a0h_signature = 0xa0;
+
+ // Checksum structure.
+ u8 sum = checksum((u8*)&ebda->fdpt[driveid], sizeof(ebda->fdpt[driveid])-1);
+ ebda->fdpt[driveid].checksum = -sum;
+}
- u16 cylinders = *(u16*)&buffer[1*2]; // word 1
- u16 heads = *(u16*)&buffer[3*2]; // word 3
- u16 spt = *(u16*)&buffer[6*2]; // word 6
+static u8
+get_translation(int driveid)
+{
+ if (! CONFIG_COREBOOT) {
+ // Emulators pass in the translation info via nvram.
+ u8 channel = driveid / 2;
+ u8 translation = inb_cmos(CMOS_BIOS_DISKTRANSFLAG + channel/2);
+ translation >>= 2 * (driveid % 4);
+ translation &= 0x03;
+ return translation;
+ }
- u32 sectors = *(u32*)&buffer[60*2]; // word 60 and word 61
+ // On COREBOOT, use a heuristic to determine translation type.
+ u16 heads = GET_GLOBAL(ATA.devices[driveid].pchs.heads);
+ u16 cylinders = GET_GLOBAL(ATA.devices[driveid].pchs.cylinders);
+ u16 spt = GET_GLOBAL(ATA.devices[driveid].pchs.spt);
- SET_EBDA(ata.devices[devid].device,ATA_DEVICE_HD);
- SET_EBDA(ata.devices[devid].removable, removable);
- SET_EBDA(ata.devices[devid].mode, mode);
- SET_EBDA(ata.devices[devid].blksize, blksize);
- SET_EBDA(ata.devices[devid].pchs.heads, heads);
- SET_EBDA(ata.devices[devid].pchs.cylinders, cylinders);
- SET_EBDA(ata.devices[devid].pchs.spt, spt);
- SET_EBDA(ata.devices[devid].sectors, sectors);
+ if (cylinders <= 1024 && heads <= 16 && spt <= 63)
+ return ATA_TRANSLATION_NONE;
+ if (cylinders * heads <= 131072)
+ return ATA_TRANSLATION_LARGE;
+ return ATA_TRANSLATION_LBA;
+}
- u8 channel = devid / 2;
- u8 slave = devid % 2;
- u8 translation = inb_cmos(CMOS_BIOS_DISKTRANSFLAG + channel/2);
- u8 shift;
- for (shift=devid%4; shift>0; shift--)
- translation >>= 2;
- translation &= 0x03;
+static void
+setup_translation(int driveid)
+{
+ u8 translation = get_translation(driveid);
+ SET_GLOBAL(ATA.devices[driveid].translation, translation);
- SET_EBDA(ata.devices[devid].translation, translation);
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+ u16 heads = GET_GLOBAL(ATA.devices[driveid].pchs.heads);
+ u16 cylinders = GET_GLOBAL(ATA.devices[driveid].pchs.cylinders);
+ u16 spt = GET_GLOBAL(ATA.devices[driveid].pchs.spt);
+ u64 sectors = GET_GLOBAL(ATA.devices[driveid].sectors);
- BX_INFO("ata%d-%d: PCHS=%u/%d/%d translation="
+ dprintf(1, "ata%d-%d: PCHS=%u/%d/%d translation="
, channel, slave, cylinders, heads, spt);
switch (translation) {
case ATA_TRANSLATION_NONE:
- BX_INFO("none");
+ dprintf(1, "none");
break;
case ATA_TRANSLATION_LBA:
- BX_INFO("lba");
+ dprintf(1, "lba");
spt = 63;
- sectors /= 63;
- heads = sectors / 1024;
+ if (sectors > 63*255*1024) {
+ heads = 255;
+ cylinders = 1024;
+ break;
+ }
+ u32 sect = (u32)sectors / 63;
+ heads = sect / 1024;
if (heads>128)
heads = 255;
else if (heads>64)
heads = 32;
else
heads = 16;
- cylinders = sectors / heads;
+ cylinders = sect / heads;
break;
case ATA_TRANSLATION_RECHS:
- BX_INFO("r-echs");
+ dprintf(1, "r-echs");
// Take care not to overflow
if (heads==16) {
if (cylinders>61439)
// then go through the large bitshift process
case ATA_TRANSLATION_LARGE:
if (translation == ATA_TRANSLATION_LARGE)
- BX_INFO("large");
- while(cylinders > 1024) {
+ dprintf(1, "large");
+ while (cylinders > 1024) {
cylinders >>= 1;
heads <<= 1;
// clip to 1024 cylinders in lchs
if (cylinders > 1024)
cylinders = 1024;
- BX_INFO(" LCHS=%d/%d/%d\n", cylinders, heads, spt);
+ dprintf(1, " LCHS=%d/%d/%d\n", cylinders, heads, spt);
+
+ SET_GLOBAL(ATA.devices[driveid].lchs.heads, heads);
+ SET_GLOBAL(ATA.devices[driveid].lchs.cylinders, cylinders);
+ SET_GLOBAL(ATA.devices[driveid].lchs.spt, spt);
+}
+
+static void
+init_drive_ata(int driveid)
+{
+ SET_GLOBAL(ATA.devices[driveid].type, ATA_TYPE_ATA);
+
+ // Temporary values to do the transfer
+ SET_GLOBAL(ATA.devices[driveid].device, ATA_DEVICE_HD);
+ SET_GLOBAL(ATA.devices[driveid].mode, ATA_MODE_PIO16);
+
+ // Now we send a IDENTIFY command to ATA device
+ u8 buffer[0x0200];
+ memset(buffer, 0, sizeof(buffer));
+ u16 ret = ata_cmd_data(driveid, ATA_CMD_IDENTIFY_DEVICE
+ , 1, 1
+ , MAKE_FARPTR(GET_SEG(SS), (u32)buffer));
+ if (ret)
+ BX_PANIC("ata-detect: Failed to detect ATA device\n");
+
+ u8 removable = (buffer[0] & 0x80) ? 1 : 0;
+ u8 mode = buffer[48*2] ? ATA_MODE_PIO32 : ATA_MODE_PIO16;
+ u16 blksize = IDE_SECTOR_SIZE;
- SET_EBDA(ata.devices[devid].lchs.heads, heads);
- SET_EBDA(ata.devices[devid].lchs.cylinders, cylinders);
- SET_EBDA(ata.devices[devid].lchs.spt, spt);
+ u16 cylinders = *(u16*)&buffer[1*2]; // word 1
+ u16 heads = *(u16*)&buffer[3*2]; // word 3
+ u16 spt = *(u16*)&buffer[6*2]; // word 6
+
+ u64 sectors;
+ if (*(u16*)&buffer[83*2] & (1 << 10)) // word 83 - lba48 support
+ sectors = *(u64*)&buffer[100*2]; // word 100-103
+ else
+ sectors = *(u32*)&buffer[60*2]; // word 60 and word 61
+
+ SET_GLOBAL(ATA.devices[driveid].device, ATA_DEVICE_HD);
+ SET_GLOBAL(ATA.devices[driveid].removable, removable);
+ SET_GLOBAL(ATA.devices[driveid].mode, mode);
+ SET_GLOBAL(ATA.devices[driveid].blksize, blksize);
+ SET_GLOBAL(ATA.devices[driveid].pchs.heads, heads);
+ SET_GLOBAL(ATA.devices[driveid].pchs.cylinders, cylinders);
+ SET_GLOBAL(ATA.devices[driveid].pchs.spt, spt);
+ SET_GLOBAL(ATA.devices[driveid].sectors, sectors);
+
+ // Setup disk geometry translation.
+ setup_translation(driveid);
// fill hdidmap
- u8 hdcount = GET_EBDA(ata.hdcount);
- SET_EBDA(ata.idmap[0][hdcount], devid);
- SET_EBDA(ata.hdcount, ++hdcount);
+ u8 hdcount = GET_GLOBAL(ATA.hdcount);
+ SET_GLOBAL(ATA.idmap[0][hdcount], driveid);
+ SET_GLOBAL(ATA.hdcount, ++hdcount);
- u32 sizeinmb = GET_EBDA(ata.devices[devid].sectors);
- sizeinmb >>= 11;
+ // Fill "fdpt" structure.
+ fill_fdpt(driveid);
- report_model(devid, buffer);
+ // Report drive info to user.
+ u64 sizeinmb = GET_GLOBAL(ATA.devices[driveid].sectors) >> 11;
+ report_model(driveid, buffer);
u8 version = get_ata_version(buffer);
if (sizeinmb < (1 << 16))
- printf(" ATA-%d Hard-Disk (%u MBytes)\n", version, sizeinmb);
+ printf(" ATA-%d Hard-Disk (%u MiBytes)\n", version, (u32)sizeinmb);
else
- printf(" ATA-%d Hard-Disk (%u GBytes)\n", version, sizeinmb >> 10);
+ printf(" ATA-%d Hard-Disk (%u GiBytes)\n", version
+ , (u32)(sizeinmb >> 10));
}
static void
-init_drive_unknown(u8 devid)
+init_drive_unknown(int driveid)
{
- SET_EBDA(ata.devices[devid].type,ATA_TYPE_UNKNOWN);
+ SET_GLOBAL(ATA.devices[driveid].type, ATA_TYPE_UNKNOWN);
- u8 channel = devid / 2;
- u8 slave = devid % 2;
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
printf("ata%d %s: Unknown device\n", channel, slave ? " slave" : "master");
}
-void
+static void
ata_detect()
{
-#if CONFIG_MAX_ATA_INTERFACES > 0
- SET_EBDA(ata.channels[0].iface,ATA_IFACE_ISA);
- SET_EBDA(ata.channels[0].iobase1,0x1f0);
- SET_EBDA(ata.channels[0].iobase2,0x3f0);
- SET_EBDA(ata.channels[0].irq,14);
-#endif
-#if CONFIG_MAX_ATA_INTERFACES > 1
- SET_EBDA(ata.channels[1].iface,ATA_IFACE_ISA);
- SET_EBDA(ata.channels[1].iobase1,0x170);
- SET_EBDA(ata.channels[1].iobase2,0x370);
- SET_EBDA(ata.channels[1].irq,15);
-#endif
-#if CONFIG_MAX_ATA_INTERFACES > 2
- SET_EBDA(ata.channels[2].iface,ATA_IFACE_ISA);
- SET_EBDA(ata.channels[2].iobase1,0x1e8);
- SET_EBDA(ata.channels[2].iobase2,0x3e0);
- SET_EBDA(ata.channels[2].irq,12);
-#endif
-#if CONFIG_MAX_ATA_INTERFACES > 3
- SET_EBDA(ata.channels[3].iface,ATA_IFACE_ISA);
- SET_EBDA(ata.channels[3].iobase1,0x168);
- SET_EBDA(ata.channels[3].iobase2,0x360);
- SET_EBDA(ata.channels[3].irq,11);
-#endif
-#if CONFIG_MAX_ATA_INTERFACES > 4
-#error Please fill the ATA interface informations
-#endif
-
// Device detection
- u8 devid;
- for(devid=0; devid<CONFIG_MAX_ATA_DEVICES; devid++) {
- u8 channel = devid / 2;
- u8 slave = devid % 2;
-
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
+ int driveid;
+ for(driveid=0; driveid<CONFIG_MAX_ATA_DEVICES; driveid++) {
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
+ if (!iobase1)
+ break;
// Disable interrupts
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN, iobase2+ATA_CB_DC);
// Look for device
outb(slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
+ mdelay(50);
outb(0x55, iobase1+ATA_CB_SC);
outb(0xaa, iobase1+ATA_CB_SN);
outb(0xaa, iobase1+ATA_CB_SC);
// If we found something
u8 sc = inb(iobase1+ATA_CB_SC);
u8 sn = inb(iobase1+ATA_CB_SN);
+ dprintf(6, "ata_detect(1) drive=%d sc=%x sn=%x\n", driveid, sc, sn);
if (sc != 0x55 || sn != 0xaa)
continue;
// reset the channel
- ata_reset(devid);
+ ata_reset(driveid);
// check for ATA or ATAPI
outb(slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
+ mdelay(50);
sc = inb(iobase1+ATA_CB_SC);
sn = inb(iobase1+ATA_CB_SN);
+ dprintf(6, "ata_detect(2) drive=%d sc=%x sn=%x\n", driveid, sc, sn);
if (sc!=0x01 || sn!=0x01) {
- init_drive_unknown(devid);
+ init_drive_unknown(driveid);
continue;
}
u8 cl = inb(iobase1+ATA_CB_CL);
u8 ch = inb(iobase1+ATA_CB_CH);
u8 st = inb(iobase1+ATA_CB_STAT);
+ dprintf(6, "ata_detect(3) drive=%d sc=%x sn=%x cl=%x ch=%x st=%x\n"
+ , driveid, sc, sn, cl, ch, st);
if (cl==0x14 && ch==0xeb)
- init_drive_atapi(devid);
+ init_drive_atapi(driveid);
else if (cl==0x00 && ch==0x00 && st!=0x00)
- init_drive_ata(devid);
+ init_drive_ata(driveid);
else if (cl==0xff && ch==0xff)
// None
continue;
else
- init_drive_unknown(devid);
+ init_drive_unknown(driveid);
}
+ printf("\n");
+}
+
+static void
+ata_init()
+{
+ // hdidmap and cdidmap init.
+ u8 device;
+ for (device=0; device < CONFIG_MAX_ATA_DEVICES; device++) {
+ SET_GLOBAL(ATA.idmap[0][device], CONFIG_MAX_ATA_DEVICES);
+ SET_GLOBAL(ATA.idmap[1][device], CONFIG_MAX_ATA_DEVICES);
+ }
+
+ // Scan PCI bus for ATA adapters
+ int count=0;
+ int bdf, max;
+ foreachpci(bdf, max) {
+ if (pci_config_readw(bdf, PCI_CLASS_DEVICE) != PCI_CLASS_STORAGE_IDE)
+ continue;
+
+ u8 irq = pci_config_readb(bdf, PCI_INTERRUPT_LINE);
+ SET_GLOBAL(ATA.channels[count].irq, irq);
+ SET_GLOBAL(ATA.channels[count].pci_bdf, bdf);
+
+ u8 prog_if = pci_config_readb(bdf, PCI_CLASS_PROG);
+ u32 port1, port2;
+
+ if (prog_if & 1) {
+ port1 = pci_config_readl(bdf, PCI_BASE_ADDRESS_0) & ~3;
+ port2 = pci_config_readl(bdf, PCI_BASE_ADDRESS_1) & ~3;
+ } else {
+ port1 = 0x1f0;
+ port2 = 0x3f0;
+ }
+ SET_GLOBAL(ATA.channels[count].iobase1, port1);
+ SET_GLOBAL(ATA.channels[count].iobase2, port2);
+ dprintf(1, "ATA controller %d at %x/%x (dev %x prog_if %x)\n"
+ , count, port1, port2, bdf, prog_if);
+ count++;
+
+ if (prog_if & 4) {
+ port1 = pci_config_readl(bdf, PCI_BASE_ADDRESS_2) & ~3;
+ port2 = pci_config_readl(bdf, PCI_BASE_ADDRESS_3) & ~3;
+ } else {
+ port1 = 0x170;
+ port2 = 0x370;
+ }
+ dprintf(1, "ATA controller %d at %x/%x (dev %x prog_if %x)\n"
+ , count, port1, port2, bdf, prog_if);
+ SET_GLOBAL(ATA.channels[count].iobase1, port1);
+ SET_GLOBAL(ATA.channels[count].iobase2, port2);
+ count++;
+ }
+}
+
+void
+hard_drive_setup()
+{
+ if (!CONFIG_ATA)
+ return;
+
+ dprintf(3, "init hard drives\n");
+ ata_init();
+ ata_detect();
+
// Store the device count
- SET_BDA(disk_count, GET_EBDA(ata.hdcount));
+ SET_BDA(disk_count, GET_GLOBAL(ATA.hdcount));
- printf("\n");
+ SET_BDA(disk_control_byte, 0xc0);
- // FIXME : should use bios=cmos|auto|disable bits
- // FIXME : should know about translation bits
- // FIXME : move hard_drive_post here
+ enable_hwirq(14, entry_76);
}
projects / seabios.git / blobdiff