Re: Fw: SiS 964 SerialATA developers anywhere?

[Uwe Koziolek]

Hello,

i have found the problem (reset PCI_COMMAND_INTX_DISABLE), but the
source must be cleaned, and some tests must be executed before i submit
the source. 

Many thanks to Daniela Engert and Jeff Garzik for their help.

Who will check in the source?.

Uwe

Am Fr, den 19.03.2004 schrieb Jeff Garzik um 00:05:
> Zero10 wrote:
> > Hey All,
> >             Gonna be buying a 160GB SATA drive sometime 
> > in the very near future and was wondering whether there
> >  were any drivers in the works or anything for Linux? or
> >  any way to get it working at all under Linux?
> 
> Uwe Koziolek has written a basic driver that works for him...  but it is 
> only in PIO mode, and so it is --very-- slow.
> 
> I have documentation, but no time to work on SiS in the past month or so 
> :(  I looked over Uwe's driver and didn't see anything wrong, I'll have 
> to look again with a closer eye.
> 
> 	Jeff
> 
> 
> 
> ______________________________________________________________________
> /*
>  *  sata_sis.c - Silicon Integrated Systems SATA
>  *
>  *  Copyright 2004 Uwe Koziolek <uwe.koziolek@xxxxxxx>
>  *
>  *  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.
>  *
>  */
> 
> #include <linux/config.h>
> #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/interrupt.h>
> #include "scsi.h"
> #include "hosts.h"
> #include <linux/libata.h>
> 
> #define DRV_NAME	"sata_sis"
> #define DRV_VERSION	"0.02"
> 
> enum {
> 	sis_180			= 0,
> };
> 
> static void sis_set_piomode (struct ata_port *ap, struct ata_device *adev,
> 			      unsigned int pio);
> static void sis_set_udmamode (struct ata_port *ap, struct ata_device *adev,
> 			      unsigned int udma);
> static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
> static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg);
> static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
> 
> static struct pci_device_id sis_pci_tbl[] = {
> 	{ 0x1039, 0x0180, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 },
> 	{ }	/* terminate list */
> };
> 
> 
> static struct pci_driver sis_pci_driver = {
> 	.name			= DRV_NAME,
> 	.id_table		= sis_pci_tbl,
> 	.probe			= sis_init_one,
> 	.remove			= ata_pci_remove_one,
> };
> 
> static Scsi_Host_Template sis_sht = {
> 	.module			= THIS_MODULE,
> 	.name			= DRV_NAME,
> 	.queuecommand		= ata_scsi_queuecmd,
> 	.eh_strategy_handler	= ata_scsi_error,
> 	.can_queue		= ATA_DEF_QUEUE,
> 	.this_id		= ATA_SHT_THIS_ID,
> 	.sg_tablesize		= ATA_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,
> 	.proc_name		= DRV_NAME,
> 	.dma_boundary		= ATA_DMA_BOUNDARY,
> 	.slave_configure	= ata_scsi_slave_config,
> 	.bios_param		= ata_std_bios_param,
> };
> 
> static struct ata_port_operations sis_ops = {
> 	.port_disable		= ata_port_disable,
> 	.set_piomode		= sis_set_piomode,
> 	.set_udmamode		= sis_set_udmamode,
> 	.tf_load		= ata_tf_load_pio,
> 	.tf_read		= ata_tf_read_pio,
> 	.check_status		= ata_check_status_pio,
> 	.exec_command		= ata_exec_command_pio,
> 	.phy_reset		= sata_phy_reset,
> 	.phy_config		= pata_phy_config,
> 	.bmdma_start            = ata_bmdma_start_pio,
> 	.fill_sg		= ata_fill_sg,
> 	.eng_timeout		= ata_eng_timeout,
> 	.irq_handler		= ata_interrupt,
> 	.scr_read		= sis_scr_read,
> 	.scr_write		= sis_scr_write,
> 	.port_start		= ata_port_start,
> 	.port_stop		= ata_port_stop,
> };
> 
> static struct ata_port_info sis_port_info[] = {
> 	/* sis_180 */
> 	{
> 		.sht		= &sis_sht,
> 		.host_flags	= ATA_FLAG_SATA, ATA_FLAG_NO_LEGACY |
> 				  ATA_FLAG_SRST,
> 		.pio_mask	= 0x03,			/* pio3-4 */
> 		.udma_mask	= 0x7f,			/* udma0-6; FIXME */
> 		.port_ops	= &sis_ops,
> 	}
> };
> 
> MODULE_AUTHOR("Uwe Koziolek");
> MODULE_DESCRIPTION("low-level driver for Silicon Integratad Systems SATA controller");
> MODULE_LICENSE("GPL");
> MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
> 
> 
> static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
> {
> 	DPRINTK("ENTER/LEAVE sc_reg=%d\n", sc_reg);
> 	if (sc_reg >= 16) return 0xffffffffU;
> 	return inl(ap->ioaddr.scr_addr+(sc_reg*4));
> }
> 
> static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
> {
> 	DPRINTK("ENTER/LEAVE sc_reg=%d, val=%08x\n", sc_reg,  val);
> 	if (sc_reg >= 16) return;
> 	outl(val, ap->ioaddr.scr_addr+(sc_reg*4));
> }
> 
> static void sis_set_piomode (struct ata_port *ap, struct ata_device *adev,
> 			      unsigned int pio)
> {
> /* this hack forces IO to uses PIO intead of DMA, because the DMA code
>  * for this chipset is not completed yet.
>  */
> 	DPRINTK("ENTER/LEAVE\n");
> 	adev->flags |= ATA_DFLAG_PIO;
> }
> 
> static void sis_set_udmamode (struct ata_port *ap, struct ata_device *adev,
> 			      unsigned int udma)
> {
> 	DPRINTK("ENTER/LEAVE\n");
> }
> 
> static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
> {
> 	struct ata_probe_ent *probe_ent = NULL;
> 	struct ata_port_info *port0 = &sis_port_info[sis_180];
> 	int rc;
> 
> 	DPRINTK("ENTER\n");
> 
> 	rc = pci_enable_device(pdev);
> 	if (rc)
> 		return rc;
> 
> 	rc = pci_request_regions(pdev, DRV_NAME);
> 	if (rc)
> 		goto err_out;
> 
> 	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
> 	if (rc)
> 		goto err_out_regions;
> 
> 	probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
> 	if (!probe_ent) {
> 		rc = -ENOMEM;
> 		goto err_out_regions;
> 	}
> 
> 	memset(probe_ent, 0, sizeof(*probe_ent));
> 	probe_ent->pdev = pdev;
> 	INIT_LIST_HEAD(&probe_ent->node);
> 
> 	probe_ent->port[0].bmdma_addr = pci_resource_start(pdev, 4);
> 	probe_ent->sht = port0->sht;
> 	probe_ent->host_flags = port0->host_flags;
> 	probe_ent->pio_mask = port0->pio_mask;
> 	probe_ent->udma_mask = port0->udma_mask;
> 	probe_ent->port_ops = port0->port_ops;
> 
> 	probe_ent->port[0].cmd_addr = pci_resource_start(pdev, 0);
> 	ata_std_ports(&probe_ent->port[0]);
> 	probe_ent->port[0].ctl_addr =
> 		pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS;
> 	probe_ent->port[0].bmdma_addr = pci_resource_start(pdev, 4);
> 	probe_ent->port[0].scr_addr = pci_resource_start(pdev, 5);
> 	probe_ent->port[1].cmd_addr = pci_resource_start(pdev, 2);
> 	ata_std_ports(&probe_ent->port[1]);
> 	probe_ent->port[1].ctl_addr =
> 		pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS;
> 	probe_ent->port[1].bmdma_addr = pci_resource_start(pdev, 4) + 8;
> 	probe_ent->port[1].scr_addr = pci_resource_start(pdev, 5) + 64;
> 
> 	probe_ent->n_ports = 2;
> 	probe_ent->irq = pdev->irq;
> 	probe_ent->irq_flags = SA_SHIRQ;
> 
> 	pci_set_master(pdev);
> 
> 	ata_device_add(probe_ent);
> 	kfree(probe_ent);
> 
> 	DPRINTK("LEAVE\n");
> 	return 0;
> 
> err_out_regions:
> 	pci_release_regions(pdev);
> 
> err_out:
> 	pci_disable_device(pdev);
> 	return rc;
> 
> }
> 
> static int __init sis_init(void)
> {
> 	int rc;
> 
> 	rc = pci_module_init(&sis_pci_driver);
> 	if (rc)
> 		return rc;
> 
> 	return 0;
> }
> 
> static void __exit sis_exit(void)
> {
> 	pci_unregister_driver(&sis_pci_driver);
> }
> 
> 
> module_init(sis_init);
> module_exit(sis_exit);

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