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/*-
* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/ata/ata-sata.c 222897 2011-06-09 16:30:13Z mav $");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/ata.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sema.h>
#include <sys/taskqueue.h>
#include <vm/uma.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
#include <ata_if.h>
void
ata_sata_phy_check_events(device_t dev, int port)
{
struct ata_channel *ch = device_get_softc(dev);
u_int32_t error, status;
ata_sata_scr_read(ch, port, ATA_SERROR, &error);
/* Check that SError value is sane. */
if (error == 0xffffffff)
return;
/* Clear set error bits/interrupt. */
if (error)
ata_sata_scr_write(ch, port, ATA_SERROR, error);
/* if we have a connection event deal with it */
if ((error & ATA_SE_PHY_CHANGED) && (ch->pm_level == 0)) {
if (bootverbose) {
ata_sata_scr_read(ch, port, ATA_SSTATUS, &status);
if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE)) {
device_printf(dev, "CONNECT requested\n");
} else
device_printf(dev, "DISCONNECT requested\n");
}
taskqueue_enqueue(taskqueue_thread, &ch->conntask);
}
}
int
ata_sata_scr_read(struct ata_channel *ch, int port, int reg, uint32_t *val)
{
if (ch->hw.pm_read != NULL)
return (ch->hw.pm_read(ch->dev, port, reg, val));
if (ch->r_io[reg].res) {
*val = ATA_IDX_INL(ch, reg);
return (0);
}
return (-1);
}
int
ata_sata_scr_write(struct ata_channel *ch, int port, int reg, uint32_t val)
{
if (ch->hw.pm_write != NULL)
return (ch->hw.pm_write(ch->dev, port, reg, val));
if (ch->r_io[reg].res) {
ATA_IDX_OUTL(ch, reg, val);
return (0);
}
return (-1);
}
static int
ata_sata_connect(struct ata_channel *ch, int port, int quick)
{
u_int32_t status;
int timeout, t;
/* wait up to 1 second for "connect well" */
timeout = (quick == 2) ? 0 : 100;
t = 0;
while (1) {
if (ata_sata_scr_read(ch, port, ATA_SSTATUS, &status))
return (0);
if (((status & ATA_SS_DET_MASK) == ATA_SS_DET_PHY_ONLINE) &&
((status & ATA_SS_SPD_MASK) != ATA_SS_SPD_NO_SPEED) &&
((status & ATA_SS_IPM_MASK) == ATA_SS_IPM_ACTIVE))
break;
if (++t > timeout)
break;
ata_udelay(10000);
}
if (bootverbose) {
if (t > timeout) {
if (port < 0) {
device_printf(ch->dev, "SATA connect timeout status=%08x\n",
status);
} else {
device_printf(ch->dev, "p%d: SATA connect timeout status=%08x\n",
port, status);
}
} else if (port < 0) {
device_printf(ch->dev, "SATA connect time=%dms status=%08x\n",
t * 10, status);
} else {
device_printf(ch->dev, "p%d: SATA connect time=%dms status=%08x\n",
port, t * 10, status);
}
}
/* clear SATA error register */
ata_sata_scr_write(ch, port, ATA_SERROR, 0xffffffff);
return ((t > timeout) ? 0 : 1);
}
int
ata_sata_phy_reset(device_t dev, int port, int quick)
{
struct ata_channel *ch = device_get_softc(dev);
int loop, retry;
uint32_t val;
if (quick) {
if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val))
return (0);
if ((val & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE) {
ata_sata_scr_write(ch, port, ATA_SCONTROL,
ATA_SC_DET_IDLE | ((ch->pm_level > 0) ? 0 :
ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER));
return ata_sata_connect(ch, port, quick);
}
}
if (bootverbose) {
if (port < 0) {
device_printf(dev, "hard reset ...\n");
} else {
device_printf(dev, "p%d: hard reset ...\n", port);
}
}
for (retry = 0; retry < 10; retry++) {
for (loop = 0; loop < 10; loop++) {
if (ata_sata_scr_write(ch, port, ATA_SCONTROL, ATA_SC_DET_RESET))
goto fail;
ata_udelay(100);
if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val))
goto fail;
if ((val & ATA_SC_DET_MASK) == ATA_SC_DET_RESET)
break;
}
ata_udelay(5000);
for (loop = 0; loop < 10; loop++) {
if (ata_sata_scr_write(ch, port, ATA_SCONTROL,
ATA_SC_DET_IDLE | ((ch->pm_level > 0) ? 0 :
ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER)))
goto fail;
ata_udelay(100);
if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val))
goto fail;
if ((val & ATA_SC_DET_MASK) == 0)
return ata_sata_connect(ch, port, 0);
}
}
fail:
/* Clear SATA error register. */
ata_sata_scr_write(ch, port, ATA_SERROR, 0xffffffff);
if (bootverbose) {
if (port < 0) {
device_printf(dev, "hard reset failed\n");
} else {
device_printf(dev, "p%d: hard reset failed\n", port);
}
}
return (0);
}
int
ata_sata_setmode(device_t dev, int target, int mode)
{
return (min(mode, ATA_UDMA5));
}
int
ata_sata_getrev(device_t dev, int target)
{
struct ata_channel *ch = device_get_softc(dev);
if (ch->r_io[ATA_SSTATUS].res)
return ((ATA_IDX_INL(ch, ATA_SSTATUS) & 0x0f0) >> 4);
return (0xff);
}
int
ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis)
{
if (request->flags & ATA_R_ATAPI) {
fis[0] = 0x27; /* host to device */
fis[1] = 0x80 | (request->unit & 0x0f);
fis[2] = ATA_PACKET_CMD;
if (request->flags & (ATA_R_READ | ATA_R_WRITE))
fis[3] = ATA_F_DMA;
else {
fis[5] = request->transfersize;
fis[6] = request->transfersize >> 8;
}
fis[7] = ATA_D_LBA;
fis[15] = ATA_A_4BIT;
return 20;
}
else {
fis[0] = 0x27; /* host to device */
fis[1] = 0x80 | (request->unit & 0x0f);
fis[2] = request->u.ata.command;
fis[3] = request->u.ata.feature;
fis[4] = request->u.ata.lba;
fis[5] = request->u.ata.lba >> 8;
fis[6] = request->u.ata.lba >> 16;
fis[7] = ATA_D_LBA;
if (!(request->flags & ATA_R_48BIT))
fis[7] |= (ATA_D_IBM | (request->u.ata.lba >> 24 & 0x0f));
fis[8] = request->u.ata.lba >> 24;
fis[9] = request->u.ata.lba >> 32;
fis[10] = request->u.ata.lba >> 40;
fis[11] = request->u.ata.feature >> 8;
fis[12] = request->u.ata.count;
fis[13] = request->u.ata.count >> 8;
fis[15] = ATA_A_4BIT;
return 20;
}
return 0;
}
void
ata_pm_identify(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
u_int32_t pm_chipid, pm_revision, pm_ports;
int port;
/* get PM vendor & product data */
if (ch->hw.pm_read(dev, ATA_PM, 0, &pm_chipid)) {
device_printf(dev, "error getting PM vendor data\n");
return;
}
/* get PM revision data */
if (ch->hw.pm_read(dev, ATA_PM, 1, &pm_revision)) {
device_printf(dev, "error getting PM revison data\n");
return;
}
/* get number of HW ports on the PM */
if (ch->hw.pm_read(dev, ATA_PM, 2, &pm_ports)) {
device_printf(dev, "error getting PM port info\n");
return;
}
pm_ports &= 0x0000000f;
/* chip specific quirks */
switch (pm_chipid) {
case 0x37261095:
/* This PM declares 6 ports, while only 5 of them are real.
* Port 5 is enclosure management bridge port, which has implementation
* problems, causing probe faults. Hide it for now. */
device_printf(dev, "SiI 3726 (rev=%x) Port Multiplier with %d (5) ports\n",
pm_revision, pm_ports);
pm_ports = 5;
break;
case 0x47261095:
/* This PM declares 7 ports, while only 5 of them are real.
* Port 5 is some fake "Config Disk" with 640 sectors size,
* port 6 is enclosure management bridge port.
* Both fake ports has implementation problems, causing
* probe faults. Hide them for now. */
device_printf(dev, "SiI 4726 (rev=%x) Port Multiplier with %d (5) ports\n",
pm_revision, pm_ports);
pm_ports = 5;
break;
default:
device_printf(dev, "Port Multiplier (id=%08x rev=%x) with %d ports\n",
pm_chipid, pm_revision, pm_ports);
}
/* reset all ports and register if anything connected */
for (port=0; port < pm_ports; port++) {
u_int32_t signature;
if (!ata_sata_phy_reset(dev, port, 1))
continue;
/*
* XXX: I have no idea how to properly wait for PMP port hardreset
* completion. Without this delay soft reset does not completes
* successfully.
*/
DELAY(1000000);
signature = ch->hw.softreset(dev, port);
if (bootverbose)
device_printf(dev, "p%d: SIGNATURE=%08x\n", port, signature);
/* figure out whats there */
switch (signature >> 16) {
case 0x0000:
ch->devices |= (ATA_ATA_MASTER << port);
continue;
case 0xeb14:
ch->devices |= (ATA_ATAPI_MASTER << port);
continue;
}
}
}