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authorJeff Garzik <jeff@garzik.org>2006-08-10 07:31:37 -0400
committerJeff Garzik <jeff@garzik.org>2006-08-10 07:31:37 -0400
commitc6fd280766a050b13360d7c2d59a3d6bd3a27d9a (patch)
treefdbeab639bc3dec29267bbf4b32cff7c8dd03593 /drivers/scsi/sata_via.c
parent79ed35a9f139ad2b2653dfdd5f45a8f1453e2cbb (diff)
Move libata to drivers/ata.
Diffstat (limited to 'drivers/scsi/sata_via.c')
-rw-r--r--drivers/scsi/sata_via.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
deleted file mode 100644
index 0bf1dbea640..00000000000
--- a/drivers/scsi/sata_via.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * 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
- *
- *
- * 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/module.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/blkdev.h>
-#include <linux/delay.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 "2.0"
-
-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 */
- SATA_PATA_SHARING = 0x49, /* PATA/SATA sharing func ctrl */
-
- PORT0 = (1 << 1),
- PORT1 = (1 << 0),
- ALL_PORTS = PORT0 | PORT1,
- N_PORTS = 2,
-
- NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4),
-
- SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */
- SATA_2DEV = (1 << 5), /* SATA is master/slave */
-};
-
-static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-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 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 */
-};
-
-static struct pci_driver svia_pci_driver = {
- .name = DRV_NAME,
- .id_table = svia_pci_tbl,
- .probe = svia_init_one,
- .remove = ata_pci_remove_one,
-};
-
-static struct scsi_host_template svia_sht = {
- .module = THIS_MODULE,
- .name = DRV_NAME,
- .ioctl = ata_scsi_ioctl,
- .queuecommand = ata_scsi_queuecmd,
- .can_queue = ATA_DEF_QUEUE,
- .this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = LIBATA_MAX_PRD,
- .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
- .emulated = ATA_SHT_EMULATED,
- .use_clustering = ATA_SHT_USE_CLUSTERING,
- .proc_name = DRV_NAME,
- .dma_boundary = ATA_DMA_BOUNDARY,
- .slave_configure = ata_scsi_slave_config,
- .slave_destroy = ata_scsi_slave_destroy,
- .bios_param = ata_std_bios_param,
-};
-
-static const struct ata_port_operations svia_sata_ops = {
- .port_disable = ata_port_disable,
-
- .tf_load = ata_tf_load,
- .tf_read = ata_tf_read,
- .check_status = ata_check_status,
- .exec_command = ata_exec_command,
- .dev_select = ata_std_dev_select,
-
- .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,
- .data_xfer = ata_pio_data_xfer,
-
- .freeze = ata_bmdma_freeze,
- .thaw = ata_bmdma_thaw,
- .error_handler = ata_bmdma_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
-
- .irq_handler = ata_interrupt,
- .irq_clear = ata_bmdma_irq_clear,
-
- .scr_read = svia_scr_read,
- .scr_write = svia_scr_write,
-
- .port_start = ata_port_start,
- .port_stop = ata_port_stop,
- .host_stop = ata_host_stop,
-};
-
-static struct ata_port_info svia_port_info = {
- .sht = &svia_sht,
- .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
- .pio_mask = 0x1f,
- .mwdma_mask = 0x07,
- .udma_mask = 0x7f,
- .port_ops = &svia_sata_ops,
-};
-
-MODULE_AUTHOR("Jeff Garzik");
-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)
-{
- if (sc_reg > SCR_CONTROL)
- return 0xffffffffU;
- return inl(ap->ioaddr.scr_addr + (4 * sc_reg));
-}
-
-static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
-{
- if (sc_reg > SCR_CONTROL)
- return;
- outl(val, ap->ioaddr.scr_addr + (4 * sc_reg));
-}
-
-static const unsigned int svia_bar_sizes[] = {
- 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_NO_LEGACY;
- probe_ent->port_ops = &svia_sata_ops;
- probe_ent->n_ports = N_PORTS;
- probe_ent->irq = pdev->irq;
- probe_ent->irq_flags = IRQF_SHARED;
- 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_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++)
- 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) {
- pci_dev_busy = 1;
- goto err_out;
- }
-
- 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) < bar_sizes[i])) {
- dev_printk(KERN_ERR, &pdev->dev,
- "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n",
- i,
- (unsigned long long)pci_resource_start(pdev, i),
- (unsigned long long)pci_resource_len(pdev, i));
- rc = -ENODEV;
- goto err_out_regions;
- }
-
- rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
- if (rc)
- goto err_out_regions;
- rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
- if (rc)
- goto err_out_regions;
-
- if (board_id == vt6420)
- probe_ent = vt6420_init_probe_ent(pdev);
- else
- probe_ent = vt6421_init_probe_ent(pdev);
-
- if (!probe_ent) {
- dev_printk(KERN_ERR, &pdev->dev, "out of memory\n");
- rc = -ENOMEM;
- goto err_out_regions;
- }
-
- svia_configure(pdev);
-
- pci_set_master(pdev);
-
- /* FIXME: check ata_device_add return value */
- ata_device_add(probe_ent);
- kfree(probe_ent);
-
- return 0;
-
-err_out_regions:
- pci_release_regions(pdev);
-err_out:
- if (!pci_dev_busy)
- pci_disable_device(pdev);
- return rc;
-}
-
-static int __init svia_init(void)
-{
- return pci_register_driver(&svia_pci_driver);
-}
-
-static void __exit svia_exit(void)
-{
- pci_unregister_driver(&svia_pci_driver);
-}
-
-module_init(svia_init);
-module_exit(svia_exit);
-