// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2002 MandrakeSoft S.A.
//
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
-#include "ata.h" // ATA_*
#include "types.h" // u8
#include "ioport.h" // inb
#include "util.h" // dprintf
#include "cmos.h" // inb_cmos
-#include "pic.h" // unmask_pic2
+#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 "boot.h" // add_bcv_hd
+#include "disk.h" // struct ata_s
+#include "atabits.h" // ATA_CB_STAT
#define TIMEOUT 0
#define BSY 1
#define IDE_TIMEOUT 32000u //32 seconds max for IDE ops
+struct ata_s ATA VAR16_32;
+
/****************************************************************
* Helper functions
****************************************************************/
// Wait for the specified ide state
-static int
-await_ide(u8 when_done, u16 base, u16 timeout)
+static inline int
+await_ide(u8 mask, u8 flags, u16 base, u16 timeout)
{
- u32 time=0, last=0;
+ u64 end = calc_future_tsc(timeout);
for (;;) {
u8 status = inb(base+ATA_CB_STAT);
- time++;
- 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);
- else if (when_done == NOT_BSY_DRQ)
- result = !(status & ATA_CB_STAT_BSY) && (status & ATA_CB_STAT_DRQ);
- else if (when_done == NOT_BSY_NOT_DRQ)
- 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);
-
- if (result)
+ if ((status & mask) == flags)
return status;
- // mod 2048 each 16 ms
- if (time>>16 != last) {
- last = time >>16;
- dprintf(6, "await_ide: (TIMEOUT,BSY,!BSY,!BSY_DRQ"
- ",!BSY_!DRQ,!BSY_RDY) %d time= %d timeout= %d\n"
- , when_done, time>>11, timeout);
- }
- if (status & ATA_CB_STAT_ERR) {
- dprintf(1, "await_ide: ERROR (TIMEOUT,BSY,!BSY,!BSY_DRQ"
- ",!BSY_!DRQ,!BSY_RDY) %d status=%x time= %d timeout= %d\n"
- , when_done, status, time>>11, timeout);
+ if (rdtscll() > end) {
+ dprintf(1, "IDE time out\n");
return -1;
}
- if (timeout == 0 || (time>>11) > timeout)
- break;
}
- 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 for the device to be not-busy.
+static int
+await_not_bsy(u16 base)
{
- // Wait one PIO transfer cycle.
- inb(iobase2 + ATA_CB_ASTAT);
-
- return await_ide(when_done, iobase1, timeout);
+ return await_ide(ATA_CB_STAT_BSY, 0, base, IDE_TIMEOUT);
}
-// Delay for x nanoseconds
-static void
-nsleep(u32 delay)
+// Wait for the device to be ready.
+static int
+await_rdy(u16 base)
{
- // XXX - how to implement ndelay?
- while (delay--)
- nop();
+ return await_ide(ATA_CB_STAT_RDY, ATA_CB_STAT_RDY, base, IDE_TIMEOUT);
}
-// Wait for ide state - pause for 400ns first.
+// Wait for ide state - pauses for one ata cycle first.
static __always_inline int
-ndelay_await_ide(u8 when_done, u16 iobase1, u16 timeout)
+pause_await_not_bsy(u16 iobase1, u16 iobase2)
{
- nsleep(400);
- return await_ide(when_done, iobase1, timeout);
+ // Wait one PIO transfer cycle.
+ inb(iobase2 + ATA_CB_ASTAT);
+
+ return await_not_bsy(iobase1);
}
-// Delay for x milliseconds
-static void
-msleep(u32 delay)
+// Wait for ide state - pause for 400ns first.
+static __always_inline int
+ndelay_await_not_bsy(u16 iobase1)
{
- usleep(delay * 1000);
+ ndelay(400);
+ return await_not_bsy(iobase1);
}
// Reset a drive
{
u8 channel = driveid / 2;
u8 slave = driveid % 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
-
- // Reset
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
- // 8.2.1 (a) -- set SRST in DC
+ dprintf(6, "ata_reset driveid=%d\n", driveid);
+ // Pulse SRST
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN | ATA_CB_DC_SRST, iobase2+ATA_CB_DC);
-
- // 8.2.1 (b) -- wait for BSY
- int status = await_ide(BSY, iobase1, 20);
- dprintf(6, "ata_reset(1) status=%x\n", status);
-
- // 8.2.1 (f) -- clear SRST
+ udelay(5);
outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN, iobase2+ATA_CB_DC);
+ mdelay(2);
- // 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);
- msleep(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_EBDA(ata.devices[driveid].type);
- if (type == ATA_TYPE_ATA)
- await_ide(NOT_BSY_RDY, iobase1, IDE_TIMEOUT);
+ // wait for device to become not busy.
+ int status = await_not_bsy(iobase1);
+ if (status < 0)
+ goto done;
+ if (slave) {
+ // Change device.
+ u64 end = calc_future_tsc(IDE_TIMEOUT);
+ for (;;) {
+ outb(ATA_CB_DH_DEV1, iobase1 + ATA_CB_DH);
+ status = await_not_bsy(iobase1);
+ if (status < 0)
+ goto done;
+ if (inb(iobase1 + ATA_CB_DH) == ATA_CB_DH_DEV1)
+ break;
+ // Change drive request failed to take effect - retry.
+ if (rdtscll() > end) {
+ dprintf(1, "ata_reset slave time out\n");
+ goto done;
+ }
+ }
}
- // 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);
+ // On a user-reset request, wait for RDY if it is an ATA device.
+ u8 type=GET_GLOBAL(ATA.devices[driveid].type);
+ if (type == ATA_TYPE_ATA)
+ status = await_rdy(iobase1);
+done:
// Enable interrupts
outb(ATA_CB_DC_HD15, iobase2+ATA_CB_DC);
+
+ dprintf(6, "ata_reset exit status=%x\n", status);
}
* 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;
send_cmd(int driveid, struct ata_pio_command *cmd)
{
u8 channel = driveid / 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
-
- int status = inb(iobase1 + ATA_CB_STAT);
- if (status & ATA_CB_STAT_BSY)
- return -3;
+ u8 slave = driveid % 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
// 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.
- msleep(50);
+ int status = await_not_bsy(iobase1);
+ if (status < 0)
+ return status;
+ u8 newdh = ((cmd->device & ~ATA_CB_DH_DEV1)
+ | (slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0));
+ u8 olddh = inb(iobase1 + ATA_CB_DH);
+ outb(newdh, iobase1 + ATA_CB_DH);
+ if ((olddh ^ newdh) & (1<<4)) {
+ // Was a device change - wait for device to become not busy.
+ status = await_not_bsy(iobase1);
+ if (status < 0)
+ return status;
+ }
if (cmd->command & 0x04) {
outb(0x00, iobase1 + ATA_CB_FR);
outb(cmd->lba_high, iobase1 + ATA_CB_CH);
outb(cmd->command, iobase1 + ATA_CB_CMD);
- status = ndelay_await_ide(NOT_BSY_DRQ, iobase1, IDE_TIMEOUT);
+ status = ndelay_await_not_bsy(iobase1);
if (status < 0)
return status;
if (status & ATA_CB_STAT_ERR) {
- dprintf(6, "send_cmd : read error\n");
+ dprintf(6, "send_cmd : read error (status=%02x err=%02x)\n"
+ , status, inb(iobase1 + ATA_CB_ERR));
return -4;
}
if (!(status & ATA_CB_STAT_DRQ)) {
- dprintf(6, "send_cmd : DRQ not set (status %02x)\n"
- , (unsigned) status);
+ dprintf(6, "send_cmd : DRQ not set (status %02x)\n", status);
return -5;
}
// 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)
+ , int skipfirst, int skiplast, void *buf_fl)
{
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);
+ , skipfirst, skiplast, buf_fl);
// Reset count of transferred data
- SET_EBDA(ata.trsfsectors, 0);
+ SET_EBDA(sector_count, 0);
u8 channel = driveid / 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
- u8 mode = GET_EBDA(ata.devices[driveid].mode);
+ 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 (;;) {
if (iswrite) {
// Write data to controller
- dprintf(16, "Write sector id=%d dest=%p\n", driveid, far_buffer);
+ dprintf(16, "Write sector id=%d dest=%p\n", driveid, buf_fl);
if (mode == ATA_MODE_PIO32)
- outsl_far(iobase1, far_buffer, bsize / 4);
+ outsl_fl(iobase1, buf_fl, bsize / 4);
else
- outsw_far(iobase1, far_buffer, bsize / 2);
+ outsw_fl(iobase1, buf_fl, bsize / 2);
} else {
// Read data from controller
- dprintf(16, "Read sector id=%d dest=%p\n", driveid, far_buffer);
+ dprintf(16, "Read sector id=%d dest=%p\n", driveid, buf_fl);
if (mode == ATA_MODE_PIO32)
- insl_far(iobase1, far_buffer, bsize / 4);
+ insl_fl(iobase1, buf_fl, bsize / 4);
else
- insw_far(iobase1, far_buffer, bsize / 2);
+ insw_fl(iobase1, buf_fl, bsize / 2);
}
- far_buffer += bsize;
+ buf_fl += bsize;
if (skiplast && current == count-1)
insx_discard(mode, iobase1, skiplast);
- status = pause_await_ide(NOT_BSY, iobase1, iobase2, IDE_TIMEOUT);
+ status = pause_await_not_bsy(iobase1, iobase2);
if (status < 0)
// Error
return status;
current++;
- SET_EBDA(ata.trsfsectors, current);
+ 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)) {
+ status &= (ATA_CB_STAT_BSY | ATA_CB_STAT_DRQ | ATA_CB_STAT_ERR);
+ if (status != ATA_CB_STAT_DRQ) {
dprintf(6, "ata_transfer : more sectors left (status %02x)\n"
- , (unsigned) status);
+ , status);
return -6;
}
}
- status &= (ATA_CB_STAT_BSY | ATA_CB_STAT_RDY | ATA_CB_STAT_DF
- | ATA_CB_STAT_DRQ | ATA_CB_STAT_ERR);
+ status &= (ATA_CB_STAT_BSY | ATA_CB_STAT_DF | ATA_CB_STAT_DRQ
+ | ATA_CB_STAT_ERR);
if (!iswrite)
status &= ~ATA_CB_STAT_DF;
- if (status != ATA_CB_STAT_RDY ) {
- dprintf(6, "ata_transfer : no sectors left (status %02x)\n"
- , (unsigned) status);
+ if (status != 0) {
+ dprintf(6, "ata_transfer : no sectors left (status %02x)\n", status);
return -7;
}
}
static noinline int
-ata_transfer_disk(const struct ata_op_s *op, int iswrite)
+ata_transfer_disk(const struct disk_op_s *op)
{
- return ata_transfer(op->driveid, iswrite, op->count, IDE_SECTOR_SIZE
- , 0, 0, op->far_buffer);
+ return ata_transfer(op->driveid, op->command == ATA_CMD_WRITE_SECTORS
+ , op->count, IDE_SECTOR_SIZE, 0, 0, op->buf_fl);
}
static noinline int
-ata_transfer_cdrom(const struct ata_op_s *op)
+ata_transfer_cdrom(const struct disk_op_s *op)
{
return ata_transfer(op->driveid, 0, op->count, CDROM_SECTOR_SIZE
- , 0, 0, op->far_buffer);
+ , 0, 0, op->buf_fl);
}
static noinline int
-ata_transfer_emu(const struct ata_op_s *op, int before, int after)
+ata_transfer_cdemu(const struct disk_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);
+ , before*512, after*512, op->buf_fl);
if (ret) {
- SET_EBDA(ata.trsfsectors, 0);
+ SET_EBDA(sector_count, 0);
return ret;
}
- SET_EBDA(ata.trsfsectors, vcount);
+ SET_EBDA(sector_count, vcount);
return 0;
}
****************************************************************/
static noinline int
-send_cmd_disk(const struct ata_op_s *op, u16 command)
+send_cmd_disk(const struct disk_op_s *op)
{
- u8 slave = op->driveid % 2;
u64 lba = op->lba;
struct ata_pio_command cmd;
memset(&cmd, 0, sizeof(cmd));
- cmd.command = command;
+ cmd.command = op->command;
if (op->count >= (1<<8) || lba + op->count >= (1<<28)) {
cmd.sector_count2 = op->count >> 8;
cmd.lba_low2 = lba >> 24;
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);
+ cmd.device = ((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)
+ata_cmd_data(struct disk_op_s *op)
{
- struct ata_op_s op;
- op.driveid = driveid;
- op.lba = lba;
- op.count = count;
- op.far_buffer = far_buffer;
-
- int ret = send_cmd_disk(&op, command);
+ int ret = send_cmd_disk(op);
if (ret)
return ret;
-
- int iswrite = command == ATA_CMD_WRITE_SECTORS;
- return ata_transfer_disk(&op, iswrite);
+ return ata_transfer_disk(op);
}
send_atapi_cmd(int driveid, u8 *cmdbuf, u8 cmdlen, u16 blocksize)
{
u8 channel = driveid / 2;
- u8 slave = driveid % 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
struct ata_pio_command cmd;
cmd.sector_count = 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.device = 0;
cmd.command = ATA_CMD_PACKET;
int ret = send_cmd(driveid, &cmd);
return ret;
// Send command to device
- outsw_far(iobase1, MAKE_FARPTR(GET_SEG(SS), (u32)cmdbuf), cmdlen / 2);
+ outsw_fl(iobase1, MAKE_FLATPTR(GET_SEG(SS), cmdbuf), cmdlen / 2);
- int status = pause_await_ide(NOT_BSY_DRQ, iobase1, iobase2, IDE_TIMEOUT);
+ int status = pause_await_not_bsy(iobase1, iobase2);
if (status < 0)
return status;
+ if (status & ATA_CB_STAT_ERR) {
+ dprintf(6, "send_atapi_cmd : read error (status=%02x err=%02x)\n"
+ , status, inb(iobase1 + ATA_CB_ERR));
+ return -2;
+ }
+ if (!(status & ATA_CB_STAT_DRQ)) {
+ dprintf(6, "send_atapi_cmd : DRQ not set (status %02x)\n", status);
+ return -3;
+ }
+
return 0;
}
// Low-level cdrom read atapi command transmit function.
static int
-send_cmd_cdrom(const struct ata_op_s *op)
+send_cmd_cdrom(const struct disk_op_s *op)
{
u8 atacmd[12];
memset(atacmd, 0, sizeof(atacmd));
// Read sectors from the cdrom.
__always_inline int
-cdrom_read(int driveid, u32 lba, u32 count, void *far_buffer)
+cdrom_read(struct disk_op_s *op)
{
- struct ata_op_s op;
- op.driveid = driveid;
- op.lba = lba;
- op.count = count;
- op.far_buffer = far_buffer;
-
- int ret = send_cmd_cdrom(&op);
+ int ret = send_cmd_cdrom(op);
if (ret)
return ret;
- return ata_transfer_cdrom(&op);
+ return ata_transfer_cdrom(op);
}
// 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)
+cdrom_read_512(struct disk_op_s *op)
{
+ u32 vlba = op->lba;
+ u32 vcount = op->count;
+ u32 lba = op->lba = vlba / 4;
u32 velba = vlba + vcount - 1;
- u32 lba = vlba / 4;
u32 elba = velba / 4;
- int count = elba - lba + 1;
+ op->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);
+ , op->driveid, vlba, vcount, op->buf_fl, lba, elba
+ , op->count, before, after);
- int ret = send_cmd_cdrom(&op);
+ int ret = send_cmd_cdrom(op);
if (ret)
return ret;
- return ata_transfer_emu(&op, before, after);
+ return ata_transfer_cdemu(op, before, after);
}
// Send a simple atapi command to a drive.
int
ata_cmd_packet(int driveid, u8 *cmdbuf, u8 cmdlen
- , u32 length, void *far_buffer)
+ , u32 length, void *buf_fl)
{
int ret = send_atapi_cmd(driveid, cmdbuf, cmdlen, length);
if (ret)
return ret;
- return ata_transfer(driveid, 0, 1, length, 0, 0, far_buffer);
+ return ata_transfer(driveid, 0, 1, length, 0, 0, buf_fl);
}
/****************************************************************
- * ATA detect and init
+ * Disk geometry translation
****************************************************************/
-static void
-report_model(int driveid, u8 *buffer)
-{
- u8 model[41];
-
- // Read model name
- int i;
- for (i=0; i<40; i+=2) {
- model[i] = buffer[i+54+1];
- model[i+1] = buffer[i+54];
- }
-
- // Reformat
- model[40] = 0x00;
- for (i=39; i>0; i--) {
- if (model[i] != 0x20)
- break;
- model[i] = 0x00;
- }
-
- 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 u8
-get_ata_version(u8 *buffer)
-{
- u16 ataversion = *(u16*)&buffer[160];
- u8 version;
- for (version=15; version>0; version--)
- if (ataversion & (1<<version))
- break;
- return version;
-}
-
-static void
-init_drive_atapi(int driveid)
-{
- SET_EBDA(ata.devices[driveid].type,ATA_TYPE_ATAPI);
-
- // Temporary values to do the transfer
- SET_EBDA(ata.devices[driveid].device,ATA_DEVICE_CDROM);
- SET_EBDA(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(driveid, ATA_CMD_IDENTIFY_DEVICE_PACKET
- , 1, 1
- , 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 = CDROM_SECTOR_SIZE;
-
- SET_EBDA(ata.devices[driveid].device, type);
- SET_EBDA(ata.devices[driveid].removable, removable);
- SET_EBDA(ata.devices[driveid].mode, mode);
- SET_EBDA(ata.devices[driveid].blksize, blksize);
-
- // fill cdidmap
- u8 cdcount = GET_EBDA(ata.cdcount);
- SET_EBDA(ata.idmap[1][cdcount], driveid);
- SET_EBDA(ata.cdcount, ++cdcount);
-
- report_model(driveid, buffer);
- u8 version = get_ata_version(buffer);
- if (GET_EBDA(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
-fill_fdpt(int driveid)
-{
- if (driveid > 1)
- return;
-
- u16 nlc = GET_EBDA(ata.devices[driveid].lchs.cylinders);
- u16 nlh = GET_EBDA(ata.devices[driveid].lchs.heads);
- u16 nlspt = GET_EBDA(ata.devices[driveid].lchs.spt);
-
- u16 npc = GET_EBDA(ata.devices[driveid].pchs.cylinders);
- u16 nph = GET_EBDA(ata.devices[driveid].pchs.heads);
- u16 npspt = GET_EBDA(ata.devices[driveid].pchs.spt);
-
- SET_EBDA(fdpt[driveid].precompensation, 0xffff);
- SET_EBDA(fdpt[driveid].drive_control_byte, 0xc0 | ((nph > 8) << 3));
- SET_EBDA(fdpt[driveid].landing_zone, npc);
- SET_EBDA(fdpt[driveid].cylinders, nlc);
- SET_EBDA(fdpt[driveid].heads, nlh);
- SET_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)
- SET_EBDA(fdpt[driveid].phys_cylinders, npc);
- SET_EBDA(fdpt[driveid].phys_heads, nph);
- SET_EBDA(fdpt[driveid].phys_sectors, npspt);
- SET_EBDA(fdpt[driveid].a0h_signature, 0xa0);
-
- // Checksum structure.
- u8 *p = MAKE_FARPTR(SEG_EBDA, offsetof(struct extended_bios_data_area_s
- , fdpt[driveid]));
- u8 sum = checksum(p, FIELD_SIZEOF(struct extended_bios_data_area_s
- , fdpt[driveid]) - 1);
- SET_EBDA(fdpt[driveid].checksum, -sum);
-}
-
static u8
get_translation(int driveid)
{
}
// On COREBOOT, use a heuristic to determine translation type.
- u16 heads = GET_EBDA(ata.devices[driveid].pchs.heads);
- u16 cylinders = GET_EBDA(ata.devices[driveid].pchs.cylinders);
- u16 spt = GET_EBDA(ata.devices[driveid].pchs.spt);
+ 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);
if (cylinders <= 1024 && heads <= 16 && spt <= 63)
return ATA_TRANSLATION_NONE;
setup_translation(int driveid)
{
u8 translation = get_translation(driveid);
- SET_EBDA(ata.devices[driveid].translation, translation);
+ SET_GLOBAL(ATA.devices[driveid].translation, translation);
u8 channel = driveid / 2;
u8 slave = driveid % 2;
- u16 heads = GET_EBDA(ata.devices[driveid].pchs.heads);
- u16 cylinders = GET_EBDA(ata.devices[driveid].pchs.cylinders);
- u16 spt = GET_EBDA(ata.devices[driveid].pchs.spt);
- u64 sectors = GET_EBDA(ata.devices[driveid].sectors);
+ 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);
dprintf(1, "ata%d-%d: PCHS=%u/%d/%d translation="
, channel, slave, cylinders, heads, spt);
cylinders = 1024;
dprintf(1, " LCHS=%d/%d/%d\n", cylinders, heads, spt);
- SET_EBDA(ata.devices[driveid].lchs.heads, heads);
- SET_EBDA(ata.devices[driveid].lchs.cylinders, cylinders);
- SET_EBDA(ata.devices[driveid].lchs.spt, 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);
}
+
+/****************************************************************
+ * ATA detect and init
+ ****************************************************************/
+
+// Extract common information from IDENTIFY commands.
static void
-init_drive_ata(int driveid)
+extract_identify(int driveid, u16 *buffer)
{
- SET_EBDA(ata.devices[driveid].type, ATA_TYPE_ATA);
+ dprintf(3, "Identify w0=%x w2=%x\n", buffer[0], buffer[2]);
+
+ // Read model name
+ char *model = ATA.devices[driveid].model;
+ int maxsize = ARRAY_SIZE(ATA.devices[driveid].model);
+ int i;
+ for (i=0; i<maxsize/2; i++) {
+ u16 v = buffer[27+i];
+ model[i*2] = v >> 8;
+ model[i*2+1] = v & 0xff;
+ }
+ model[maxsize-1] = 0x00;
+
+ // Trim trailing spaces from model name.
+ for (i=maxsize-2; i>0 && model[i] == 0x20; i--)
+ model[i] = 0x00;
- // Temporary values to do the transfer
- SET_EBDA(ata.devices[driveid].device, ATA_DEVICE_HD);
- SET_EBDA(ata.devices[driveid].mode, ATA_MODE_PIO16);
+ // Extract ATA/ATAPI version.
+ u16 ataversion = buffer[80];
+ u8 version;
+ for (version=15; version>0; version--)
+ if (ataversion & (1<<version))
+ break;
+ ATA.devices[driveid].version = version;
- // Now we send a IDENTIFY command to ATA device
- u8 buffer[0x0200];
+ // Common flags.
+ SET_GLOBAL(ATA.devices[driveid].removable, (buffer[0] & 0x80) ? 1 : 0);
+ // XXX - what is buffer[48]?
+ SET_GLOBAL(ATA.devices[driveid].mode
+ , buffer[48] ? ATA_MODE_PIO32 : ATA_MODE_PIO16);
+}
+
+static int
+init_drive_atapi(int driveid)
+{
+ // Send an IDENTIFY_DEVICE_PACKET command to device
+ u16 buffer[256];
memset(buffer, 0, sizeof(buffer));
- u16 ret = ata_cmd_data(driveid, ATA_CMD_IDENTIFY_DEVICE
- , 1, 1
- , MAKE_FARPTR(GET_SEG(SS), (u32)buffer));
+ struct disk_op_s dop;
+ dop.driveid = driveid;
+ dop.command = ATA_CMD_IDENTIFY_DEVICE_PACKET;
+ dop.count = 1;
+ dop.lba = 1;
+ dop.buf_fl = MAKE_FLATPTR(GET_SEG(SS), buffer);
+ int ret = ata_cmd_data(&dop);
if (ret)
- BX_PANIC("ata-detect: Failed to detect ATA device\n");
+ return ret;
- u8 removable = (buffer[0] & 0x80) ? 1 : 0;
- u8 mode = buffer[96] ? ATA_MODE_PIO32 : ATA_MODE_PIO16;
- u16 blksize = *(u16*)&buffer[10];
+ // Success - setup as ATAPI.
+ extract_identify(driveid, buffer);
+ SET_GLOBAL(ATA.devices[driveid].type, ATA_TYPE_ATAPI);
+ SET_GLOBAL(ATA.devices[driveid].device, (buffer[0] >> 8) & 0x1f);
+ SET_GLOBAL(ATA.devices[driveid].blksize, CDROM_SECTOR_SIZE);
- u16 cylinders = *(u16*)&buffer[1*2]; // word 1
- u16 heads = *(u16*)&buffer[3*2]; // word 3
- u16 spt = *(u16*)&buffer[6*2]; // word 6
+ // fill cdidmap
+ u8 cdcount = GET_GLOBAL(ATA.cdcount);
+ SET_GLOBAL(ATA.idmap[1][cdcount], driveid);
+ SET_GLOBAL(ATA.cdcount, cdcount+1);
+
+ // Report drive info to user.
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+ printf("ata%d-%d: %s ATAPI-%d %s\n", channel, slave
+ , ATA.devices[driveid].model, ATA.devices[driveid].version
+ , (ATA.devices[driveid].type == ATA_DEVICE_CDROM
+ ? "CD-Rom/DVD-Rom" : "Device"));
+
+ return 0;
+}
+
+static int
+init_drive_ata(int driveid)
+{
+ // Send an IDENTIFY_DEVICE command to device
+ u16 buffer[256];
+ memset(buffer, 0, sizeof(buffer));
+ struct disk_op_s dop;
+ dop.driveid = driveid;
+ dop.command = ATA_CMD_IDENTIFY_DEVICE;
+ dop.count = 1;
+ dop.lba = 1;
+ dop.buf_fl = MAKE_FLATPTR(GET_SEG(SS), buffer);
+ int ret = ata_cmd_data(&dop);
+ if (ret)
+ return ret;
+
+ // Success - setup as ATA.
+ extract_identify(driveid, buffer);
+ SET_GLOBAL(ATA.devices[driveid].type, ATA_TYPE_ATA);
+ SET_GLOBAL(ATA.devices[driveid].device, ATA_DEVICE_HD);
+ SET_GLOBAL(ATA.devices[driveid].blksize, IDE_SECTOR_SIZE);
+
+ SET_GLOBAL(ATA.devices[driveid].pchs.cylinders, buffer[1]);
+ SET_GLOBAL(ATA.devices[driveid].pchs.heads, buffer[3]);
+ SET_GLOBAL(ATA.devices[driveid].pchs.spt, buffer[6]);
u64 sectors;
- if (*(u16*)&buffer[83*2] & (1 << 10)) // word 83 - lba48 support
- sectors = *(u64*)&buffer[100*2]; // word 100-103
+ if (buffer[83] & (1 << 10)) // word 83 - lba48 support
+ sectors = *(u64*)&buffer[100]; // word 100-103
else
- sectors = *(u32*)&buffer[60*2]; // word 60 and word 61
-
- SET_EBDA(ata.devices[driveid].device, ATA_DEVICE_HD);
- SET_EBDA(ata.devices[driveid].removable, removable);
- SET_EBDA(ata.devices[driveid].mode, mode);
- SET_EBDA(ata.devices[driveid].blksize, blksize);
- SET_EBDA(ata.devices[driveid].pchs.heads, heads);
- SET_EBDA(ata.devices[driveid].pchs.cylinders, cylinders);
- SET_EBDA(ata.devices[driveid].pchs.spt, spt);
- SET_EBDA(ata.devices[driveid].sectors, sectors);
+ sectors = *(u32*)&buffer[60]; // word 60 and word 61
+ 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], driveid);
- SET_EBDA(ata.hdcount, ++hdcount);
-
- // Fill "fdpt" structure.
- fill_fdpt(driveid);
-
// Report drive info to user.
- u64 sizeinmb = GET_EBDA(ata.devices[driveid].sectors) >> 11;
- report_model(driveid, buffer);
- u8 version = get_ata_version(buffer);
+ u8 channel = driveid / 2;
+ u8 slave = driveid % 2;
+ char *model = ATA.devices[driveid].model;
+ printf("ata%d-%d: %s ATA-%d Hard-Disk ", channel, slave, model
+ , ATA.devices[driveid].version);
+ u64 sizeinmb = sectors >> 11;
if (sizeinmb < (1 << 16))
- printf(" ATA-%d Hard-Disk (%u MiBytes)\n", version, (u32)sizeinmb);
+ printf("(%u MiBytes)\n", (u32)sizeinmb);
else
- printf(" ATA-%d Hard-Disk (%u GiBytes)\n", version
- , (u32)(sizeinmb >> 10));
-}
+ printf("(%u GiBytes)\n", (u32)(sizeinmb >> 10));
-static void
-init_drive_unknown(int driveid)
-{
- SET_EBDA(ata.devices[driveid].type,ATA_TYPE_UNKNOWN);
+ // Register with bcv system.
+ add_bcv_hd(driveid, model);
- u8 channel = driveid / 2;
- u8 slave = driveid % 2;
- printf("ata%d %s: Unknown device\n", channel, slave ? " slave" : "master");
+ return 0;
}
static void
ata_detect()
{
// Device detection
- int driveid;
+ int driveid, last_reset_driveid=-1;
for(driveid=0; driveid<CONFIG_MAX_ATA_DEVICES; driveid++) {
u8 channel = driveid / 2;
u8 slave = driveid % 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
-
- // Disable interrupts
- outb(ATA_CB_DC_HD15 | ATA_CB_DC_NIEN, iobase2+ATA_CB_DC);
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ if (!iobase1)
+ break;
// Look for device
outb(slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
- msleep(50);
outb(0x55, iobase1+ATA_CB_SC);
outb(0xaa, iobase1+ATA_CB_SN);
outb(0xaa, iobase1+ATA_CB_SC);
outb(0x55, iobase1+ATA_CB_SC);
outb(0xaa, iobase1+ATA_CB_SN);
- // If we found something
+ // Check if ioport registers look valid.
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);
-
+ dprintf(6, "ata_detect drive=%d sc=%x sn=%x\n", driveid, sc, sn);
if (sc != 0x55 || sn != 0xaa)
continue;
// reset the channel
- ata_reset(driveid);
+ if (slave && driveid == last_reset_driveid + 1) {
+ // The drive was just reset - no need to reset it again.
+ } else {
+ ata_reset(driveid);
+ last_reset_driveid = driveid;
+ }
- // check for ATA or ATAPI
- outb(slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0, iobase1+ATA_CB_DH);
- msleep(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(driveid);
+ // check for ATAPI
+ int ret = init_drive_atapi(driveid);
+ if (!ret)
+ // Found an ATAPI drive.
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(driveid);
- else if (cl==0x00 && ch==0x00 && st!=0x00)
- init_drive_ata(driveid);
- else if (cl==0xff && ch==0xff)
- // None
+ if (!st)
+ // Status not set - can't be a valid drive.
continue;
- else
- init_drive_unknown(driveid);
+
+ // Wait for RDY.
+ ret = await_rdy(iobase1);
+ if (ret < 0)
+ continue;
+
+ // check for ATA.
+ init_drive_ata(driveid);
}
printf("\n");
static void
ata_init()
{
+ memset(&ATA, 0, sizeof(ATA));
+
// hdidmap and cdidmap init.
u8 device;
for (device=0; device < CONFIG_MAX_ATA_DEVICES; device++) {
- SET_EBDA(ata.idmap[0][device], CONFIG_MAX_ATA_DEVICES);
- SET_EBDA(ata.idmap[1][device], CONFIG_MAX_ATA_DEVICES);
+ SET_GLOBAL(ATA.idmap[0][device], CONFIG_MAX_ATA_DEVICES);
+ SET_GLOBAL(ATA.idmap[1][device], CONFIG_MAX_ATA_DEVICES);
}
-#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
+ // 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;
+ if (count >= ARRAY_SIZE(ATA.channels))
+ break;
+
+ 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
ata_init();
ata_detect();
- // Store the device count
- SET_BDA(disk_count, GET_EBDA(ata.hdcount));
-
SET_BDA(disk_control_byte, 0xc0);
- // Enable IRQ14 (handle_76)
- unmask_pic2(PIC2_IRQ14);
+ enable_hwirq(14, entry_76);
+}
+
+
+/****************************************************************
+ * Drive mapping
+ ****************************************************************/
+
+// Fill in Fixed Disk Parameter Table (located in ebda).
+static void
+fill_fdpt(int driveid)
+{
+ 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 fdpt_s *fdpt = &get_ebda_ptr()->fdpt[driveid];
+ fdpt->precompensation = 0xffff;
+ fdpt->drive_control_byte = 0xc0 | ((nph > 8) << 3);
+ fdpt->landing_zone = npc;
+ fdpt->cylinders = nlc;
+ fdpt->heads = nlh;
+ fdpt->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)
+ fdpt->phys_cylinders = npc;
+ fdpt->phys_heads = nph;
+ fdpt->phys_sectors = npspt;
+ fdpt->a0h_signature = 0xa0;
+
+ // Checksum structure.
+ u8 sum = checksum((u8*)fdpt, sizeof(*fdpt)-1);
+ fdpt->checksum = -sum;
+}
+
+// Map a drive (that was registered via add_bcv_hd)
+void
+map_drive(int driveid)
+{
+ // fill hdidmap
+ u8 hdcount = GET_BDA(hdcount);
+ dprintf(3, "Mapping driveid %d to %d\n", driveid, hdcount);
+ SET_GLOBAL(ATA.idmap[0][hdcount], driveid);
+ SET_BDA(hdcount, hdcount + 1);
+
+ // Fill "fdpt" structure.
+ fill_fdpt(hdcount);
}
projects / seabios.git / blobdiff