/*
- sata_via.c - VIA Serial ATA controllers
-
- Maintained by: Jeff Garzik <jgarzik@pobox.com>
- Please ALWAYS copy linux-ide@vger.kernel.org
+ * sata_via.c - VIA Serial ATA controllers
+ *
+ * Maintained by: Jeff Garzik <jgarzik@pobox.com>
+ * Please ALWAYS copy linux-ide@vger.kernel.org
on emails.
-
- Copyright 2003-2004 Red Hat, Inc. All rights reserved.
- Copyright 2003-2004 Jeff Garzik
-
- The contents of this file are subject to the Open
- Software License version 1.1 that can be found at
- http://www.opensource.org/licenses/osl-1.1.txt and is included herein
- by reference.
-
- Alternatively, the contents of this file may be used under the terms
- of the GNU General Public License version 2 (the "GPL") as distributed
- in the kernel source COPYING file, in which case the provisions of
- the GPL are applicable instead of the above. If you wish to allow
- the use of your version of this file only under the terms of the
- GPL and not to allow others to use your version of this file under
- the OSL, indicate your decision by deleting the provisions above and
- replace them with the notice and other provisions required by the GPL.
- If you do not delete the provisions above, a recipient may use your
- version of this file under either the OSL or the GPL.
-
+ *
+ * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
+ * Copyright 2003-2004 Jeff Garzik
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ * Hardware documentation available under NDA.
+ *
+ *
+ * To-do list:
+ * - VT6421 PATA support
+ *
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
-#include "scsi.h"
+#include <linux/device.h>
#include <scsi/scsi_host.h>
#include <linux/libata.h>
#include <asm/io.h>
#define DRV_NAME "sata_via"
-#define DRV_VERSION "0.20"
+#define DRV_VERSION "1.1"
-enum {
- via_sata = 0,
+enum board_ids_enum {
+ vt6420,
+ vt6421,
+};
+enum {
SATA_CHAN_ENAB = 0x40, /* SATA channel enable */
SATA_INT_GATE = 0x41, /* SATA interrupt gating */
SATA_NATIVE_MODE = 0x42, /* Native mode enable */
PORT0 = (1 << 1),
PORT1 = (1 << 0),
-
- ENAB_ALL = PORT0 | PORT1,
-
- INT_GATE_ALL = PORT0 | PORT1,
+ ALL_PORTS = PORT0 | PORT1,
+ N_PORTS = 2,
NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
-static struct pci_device_id svia_pci_tbl[] = {
- { 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, via_sata },
+static const struct pci_device_id svia_pci_tbl[] = {
+ { 0x1106, 0x3149, PCI_ANY_ID, PCI_ANY_ID, 0, 0, vt6420 },
+ { 0x1106, 0x3249, PCI_ANY_ID, PCI_ANY_ID, 0, 0, vt6421 },
{ } /* terminate list */
};
.remove = ata_pci_remove_one,
};
-static Scsi_Host_Template svia_sht = {
+static struct scsi_host_template svia_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
- .eh_strategy_handler = ata_scsi_error,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
- .max_sectors = ATA_MAX_SECTORS,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = ATA_SHT_USE_CLUSTERING,
.bios_param = ata_std_bios_param,
};
-static struct ata_port_operations svia_sata_ops = {
+static const struct ata_port_operations svia_sata_ops = {
.port_disable = ata_port_disable,
.tf_load = ata_tf_load,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.port_start = ata_port_start,
.port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
};
static struct ata_port_info svia_port_info = {
MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, svia_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
8, 4, 8, 4, 16, 256
};
+static const unsigned int vt6421_bar_sizes[] = {
+ 16, 16, 16, 16, 32, 128
+};
+
static unsigned long svia_scr_addr(unsigned long addr, unsigned int port)
{
return addr + (port * 128);
}
+static unsigned long vt6421_scr_addr(unsigned long addr, unsigned int port)
+{
+ return addr + (port * 64);
+}
+
+static void vt6421_init_addrs(struct ata_probe_ent *probe_ent,
+ struct pci_dev *pdev,
+ unsigned int port)
+{
+ unsigned long reg_addr = pci_resource_start(pdev, port);
+ unsigned long bmdma_addr = pci_resource_start(pdev, 4) + (port * 8);
+ unsigned long scr_addr;
+
+ probe_ent->port[port].cmd_addr = reg_addr;
+ probe_ent->port[port].altstatus_addr =
+ probe_ent->port[port].ctl_addr = (reg_addr + 8) | ATA_PCI_CTL_OFS;
+ probe_ent->port[port].bmdma_addr = bmdma_addr;
+
+ scr_addr = vt6421_scr_addr(pci_resource_start(pdev, 5), port);
+ probe_ent->port[port].scr_addr = scr_addr;
+
+ ata_std_ports(&probe_ent->port[port]);
+}
+
+static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev)
+{
+ struct ata_probe_ent *probe_ent;
+ struct ata_port_info *ppi = &svia_port_info;
+
+ probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
+ if (!probe_ent)
+ return NULL;
+
+ probe_ent->port[0].scr_addr =
+ svia_scr_addr(pci_resource_start(pdev, 5), 0);
+ probe_ent->port[1].scr_addr =
+ svia_scr_addr(pci_resource_start(pdev, 5), 1);
+
+ return probe_ent;
+}
+
+static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev)
+{
+ struct ata_probe_ent *probe_ent;
+ unsigned int i;
+
+ probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
+ if (!probe_ent)
+ return NULL;
+
+ memset(probe_ent, 0, sizeof(*probe_ent));
+ probe_ent->dev = pci_dev_to_dev(pdev);
+ INIT_LIST_HEAD(&probe_ent->node);
+
+ probe_ent->sht = &svia_sht;
+ probe_ent->host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
+ ATA_FLAG_NO_LEGACY;
+ probe_ent->port_ops = &svia_sata_ops;
+ probe_ent->n_ports = N_PORTS;
+ probe_ent->irq = pdev->irq;
+ probe_ent->irq_flags = SA_SHIRQ;
+ probe_ent->pio_mask = 0x1f;
+ probe_ent->mwdma_mask = 0x07;
+ probe_ent->udma_mask = 0x7f;
+
+ for (i = 0; i < N_PORTS; i++)
+ vt6421_init_addrs(probe_ent, pdev, i);
+
+ return probe_ent;
+}
+
+static void svia_configure(struct pci_dev *pdev)
+{
+ u8 tmp8;
+
+ pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8);
+ dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n",
+ (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f);
+
+ /* make sure SATA channels are enabled */
+ pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8);
+ if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "enabling SATA channels (0x%x)\n",
+ (int) tmp8);
+ tmp8 |= ALL_PORTS;
+ pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8);
+ }
+
+ /* make sure interrupts for each channel sent to us */
+ pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8);
+ if ((tmp8 & ALL_PORTS) != ALL_PORTS) {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "enabling SATA channel interrupts (0x%x)\n",
+ (int) tmp8);
+ tmp8 |= ALL_PORTS;
+ pci_write_config_byte(pdev, SATA_INT_GATE, tmp8);
+ }
+
+ /* make sure native mode is enabled */
+ pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8);
+ if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "enabling SATA channel native mode (0x%x)\n",
+ (int) tmp8);
+ tmp8 |= NATIVE_MODE_ALL;
+ pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
+ }
+}
+
static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version;
unsigned int i;
int rc;
- struct ata_port_info *ppi;
struct ata_probe_ent *probe_ent;
+ int board_id = (int) ent->driver_data;
+ const int *bar_sizes;
+ int pci_dev_busy = 0;
u8 tmp8;
if (!printed_version++)
- printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
rc = pci_enable_device(pdev);
if (rc)
return rc;
rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
+ if (rc) {
+ pci_dev_busy = 1;
goto err_out;
+ }
- pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8);
- if (tmp8 & SATA_2DEV) {
- printk(KERN_ERR DRV_NAME "(%s): SATA master/slave not supported (0x%x)\n",
- pci_name(pdev), (int) tmp8);
- rc = -EIO;
- goto err_out_regions;
+ if (board_id == vt6420) {
+ pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8);
+ if (tmp8 & SATA_2DEV) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "SATA master/slave not supported (0x%x)\n",
+ (int) tmp8);
+ rc = -EIO;
+ goto err_out_regions;
+ }
+
+ bar_sizes = &svia_bar_sizes[0];
+ } else {
+ bar_sizes = &vt6421_bar_sizes[0];
}
for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++)
if ((pci_resource_start(pdev, i) == 0) ||
- (pci_resource_len(pdev, i) < svia_bar_sizes[i])) {
- printk(KERN_ERR DRV_NAME "(%s): invalid PCI BAR %u (sz 0x%lx, val 0x%lx)\n",
- pci_name(pdev), i,
- pci_resource_start(pdev, i),
- pci_resource_len(pdev, i));
+ (pci_resource_len(pdev, i) < bar_sizes[i])) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "invalid PCI BAR %u (sz 0x%lx, val 0x%lx)\n",
+ i,
+ pci_resource_start(pdev, i),
+ pci_resource_len(pdev, i));
rc = -ENODEV;
goto err_out_regions;
}
if (rc)
goto err_out_regions;
- ppi = &svia_port_info;
- probe_ent = ata_pci_init_native_mode(pdev, &ppi);
+ if (board_id == vt6420)
+ probe_ent = vt6420_init_probe_ent(pdev);
+ else
+ probe_ent = vt6421_init_probe_ent(pdev);
+
if (!probe_ent) {
- printk(KERN_ERR DRV_NAME "(%s): out of memory\n",
- pci_name(pdev));
+ dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
rc = -ENOMEM;
goto err_out_regions;
}
- probe_ent->port[0].scr_addr =
- svia_scr_addr(pci_resource_start(pdev, 5), 0);
- probe_ent->port[1].scr_addr =
- svia_scr_addr(pci_resource_start(pdev, 5), 1);
-
- pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8);
- printk(KERN_INFO DRV_NAME "(%s): routed to hard irq line %d\n",
- pci_name(pdev),
- (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f);
-
- /* make sure SATA channels are enabled */
- pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8);
- if ((tmp8 & ENAB_ALL) != ENAB_ALL) {
- printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channels (0x%x)\n",
- pci_name(pdev), (int) tmp8);
- tmp8 |= ENAB_ALL;
- pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8);
- }
-
- /* make sure interrupts for each channel sent to us */
- pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8);
- if ((tmp8 & INT_GATE_ALL) != INT_GATE_ALL) {
- printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channel interrupts (0x%x)\n",
- pci_name(pdev), (int) tmp8);
- tmp8 |= INT_GATE_ALL;
- pci_write_config_byte(pdev, SATA_INT_GATE, tmp8);
- }
-
- /* make sure native mode is enabled */
- pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8);
- if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) {
- printk(KERN_DEBUG DRV_NAME "(%s): enabling SATA channel native mode (0x%x)\n",
- pci_name(pdev), (int) tmp8);
- tmp8 |= NATIVE_MODE_ALL;
- pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
- }
+ svia_configure(pdev);
pci_set_master(pdev);
err_out_regions:
pci_release_regions(pdev);
err_out:
- pci_disable_device(pdev);
+ if (!pci_dev_busy)
+ pci_disable_device(pdev);
return rc;
}
git://git.onelab.eu / linux-2.6.git / blobdiff