drivers/ata/sata_uli.c - fp2-dev/kernel/msm - Gitiles

 /*
  *  sata_uli.c - ULi Electronics SATA
  *
  *
  *  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.
  *
  */

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>

 #define DRV_NAME	"sata_uli"
 #define DRV_VERSION	"1.3"

 enum {
 	uli_5289		= 0,
 	uli_5287		= 1,
 	uli_5281		= 2,

 	uli_max_ports		= 4,

 	/* PCI configuration registers */
 	ULI5287_BASE		= 0x90, /* sata0 phy SCR registers */
 	ULI5287_OFFS		= 0x10, /* offset from sata0->sata1 phy regs */
 	ULI5281_BASE		= 0x60, /* sata0 phy SCR  registers */
 	ULI5281_OFFS		= 0x60, /* offset from sata0->sata1 phy regs */
 };

 struct uli_priv {
 	unsigned int		scr_cfg_addr[uli_max_ports];
 };

 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
 static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);

 static const struct pci_device_id uli_pci_tbl[] = {
 	{ PCI_VDEVICE(AL, 0x5289), uli_5289 },
 	{ PCI_VDEVICE(AL, 0x5287), uli_5287 },
 	{ PCI_VDEVICE(AL, 0x5281), uli_5281 },

 	{ }	/* terminate list */
 };

 static struct pci_driver uli_pci_driver = {
 	.name			= DRV_NAME,
 	.id_table		= uli_pci_tbl,
 	.probe			= uli_init_one,
 	.remove			= ata_pci_remove_one,
 };

 static struct scsi_host_template uli_sht = {
 	ATA_BMDMA_SHT(DRV_NAME),
 };

 static struct ata_port_operations uli_ops = {
 	.inherits		= &ata_bmdma_port_ops,
 	.scr_read		= uli_scr_read,
 	.scr_write		= uli_scr_write,
 	.hardreset		= ATA_OP_NULL,
 };

 static const struct ata_port_info uli_port_info = {
 	.flags		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
 			  ATA_FLAG_IGN_SIMPLEX,
 	.pio_mask       = ATA_PIO4,
 	.udma_mask      = ATA_UDMA6,
 	.port_ops       = &uli_ops,
 };


 MODULE_AUTHOR("Peer Chen");
 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
 MODULE_VERSION(DRV_VERSION);

 static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
 {
 	struct uli_priv *hpriv = ap->host->private_data;
 	return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
 }

 static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg)
 {
 	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
 	unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg);
 	u32 val;

 	pci_read_config_dword(pdev, cfg_addr, &val);
 	return val;
 }

 static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val)
 {
 	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
 	unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr);

 	pci_write_config_dword(pdev, cfg_addr, val);
 }

 static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
 {
 	if (sc_reg > SCR_CONTROL)
 		return -EINVAL;

 	*val = uli_scr_cfg_read(link, sc_reg);
 	return 0;
 }

 static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
 {
 	if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
 		return -EINVAL;

 	uli_scr_cfg_write(link, sc_reg, val);
 	return 0;
 }

 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	static int printed_version;
 	const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
 	unsigned int board_idx = (unsigned int) ent->driver_data;
 	struct ata_host *host;
 	struct uli_priv *hpriv;
 	void __iomem * const *iomap;
 	struct ata_ioports *ioaddr;
 	int n_ports, rc;

 	if (!printed_version++)
 		dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");

 	rc = pcim_enable_device(pdev);
 	if (rc)
 		return rc;

 	n_ports = 2;
 	if (board_idx == uli_5287)
 		n_ports = 4;

 	/* allocate the host */
 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
 	if (!host)
 		return -ENOMEM;

 	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
 	if (!hpriv)
 		return -ENOMEM;
 	host->private_data = hpriv;

 	/* the first two ports are standard SFF */
 	rc = ata_pci_sff_init_host(host);
 	if (rc)
 		return rc;

 	rc = ata_pci_bmdma_init(host);
 	if (rc)
 		return rc;

 	iomap = host->iomap;

 	switch (board_idx) {
 	case uli_5287:
 		/* If there are four, the last two live right after
 		 * the standard SFF ports.
 		 */
 		hpriv->scr_cfg_addr[0] = ULI5287_BASE;
 		hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;

 		ioaddr = &host->ports[2]->ioaddr;
 		ioaddr->cmd_addr = iomap[0] + 8;
 		ioaddr->altstatus_addr =
 		ioaddr->ctl_addr = (void __iomem *)
 			((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
 		ioaddr->bmdma_addr = iomap[4] + 16;
 		hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
 		ata_sff_std_ports(ioaddr);

 		ata_port_desc(host->ports[2],
 			"cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
 			(unsigned long long)pci_resource_start(pdev, 0) + 8,
 			((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
 			(unsigned long long)pci_resource_start(pdev, 4) + 16);

 		ioaddr = &host->ports[3]->ioaddr;
 		ioaddr->cmd_addr = iomap[2] + 8;
 		ioaddr->altstatus_addr =
 		ioaddr->ctl_addr = (void __iomem *)
 			((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
 		ioaddr->bmdma_addr = iomap[4] + 24;
 		hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
 		ata_sff_std_ports(ioaddr);

 		ata_port_desc(host->ports[2],
 			"cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
 			(unsigned long long)pci_resource_start(pdev, 2) + 9,
 			((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
 			(unsigned long long)pci_resource_start(pdev, 4) + 24);

 		break;

 	case uli_5289:
 		hpriv->scr_cfg_addr[0] = ULI5287_BASE;
 		hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
 		break;

 	case uli_5281:
 		hpriv->scr_cfg_addr[0] = ULI5281_BASE;
 		hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
 		break;

 	default:
 		BUG();
 		break;
 	}

 	pci_set_master(pdev);
 	pci_intx(pdev, 1);
 	return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
 				 IRQF_SHARED, &uli_sht);
 }

 static int __init uli_init(void)
 {
 	return pci_register_driver(&uli_pci_driver);
 }

 static void __exit uli_exit(void)
 {
 	pci_unregister_driver(&uli_pci_driver);
 }


 module_init(uli_init);
 module_exit(uli_exit);
	/*
	* sata_uli.c - ULi Electronics SATA
	*
	*
	* 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.
	*
	*/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/gfp.h>
	#include <linux/pci.h>
	#include <linux/init.h>
	#include <linux/blkdev.h>
	#include <linux/delay.h>
	#include <linux/interrupt.h>
	#include <linux/device.h>
	#include <scsi/scsi_host.h>
	#include <linux/libata.h>

	#define DRV_NAME "sata_uli"
	#define DRV_VERSION "1.3"

	enum {
	uli_5289 = 0,
	uli_5287 = 1,
	uli_5281 = 2,

	uli_max_ports = 4,

	/* PCI configuration registers */
	ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
	ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
	ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
	ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
	};

	struct uli_priv {
	unsigned int scr_cfg_addr[uli_max_ports];
	};

	static int uli_init_one(struct pci_dev pdev, const struct pci_device_id ent);
	static int uli_scr_read(struct ata_link link, unsigned int sc_reg, u32 val);
	static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);

	static const struct pci_device_id uli_pci_tbl[] = {
	{ PCI_VDEVICE(AL, 0x5289), uli_5289 },
	{ PCI_VDEVICE(AL, 0x5287), uli_5287 },
	{ PCI_VDEVICE(AL, 0x5281), uli_5281 },

	{ } /* terminate list */
	};

	static struct pci_driver uli_pci_driver = {
	.name = DRV_NAME,
	.id_table = uli_pci_tbl,
	.probe = uli_init_one,
	.remove = ata_pci_remove_one,
	};

	static struct scsi_host_template uli_sht = {
	ATA_BMDMA_SHT(DRV_NAME),
	};

	static struct ata_port_operations uli_ops = {
	.inherits = &ata_bmdma_port_ops,
	.scr_read = uli_scr_read,
	.scr_write = uli_scr_write,
	.hardreset = ATA_OP_NULL,
	};

	static const struct ata_port_info uli_port_info = {
	.flags = ATA_FLAG_SATA \| ATA_FLAG_NO_LEGACY \|
	ATA_FLAG_IGN_SIMPLEX,
	.pio_mask = ATA_PIO4,
	.udma_mask = ATA_UDMA6,
	.port_ops = &uli_ops,
	};


	MODULE_AUTHOR("Peer Chen");
	MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
	MODULE_LICENSE("GPL");
	MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
	MODULE_VERSION(DRV_VERSION);

	static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
	{
	struct uli_priv *hpriv = ap->host->private_data;
	return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
	}

	static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg)
	{
	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
	unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg);
	u32 val;

	pci_read_config_dword(pdev, cfg_addr, &val);
	return val;
	}

	static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val)
	{
	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
	unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr);

	pci_write_config_dword(pdev, cfg_addr, val);
	}

	static int uli_scr_read(struct ata_link link, unsigned int sc_reg, u32 val)
	{
	if (sc_reg > SCR_CONTROL)
	return -EINVAL;

	*val = uli_scr_cfg_read(link, sc_reg);
	return 0;
	}

	static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
	{
	if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
	return -EINVAL;

	uli_scr_cfg_write(link, sc_reg, val);
	return 0;
	}

	static int uli_init_one(struct pci_dev pdev, const struct pci_device_id ent)
	{
	static int printed_version;
	const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
	unsigned int board_idx = (unsigned int) ent->driver_data;
	struct ata_host *host;
	struct uli_priv *hpriv;
	void __iomem * const *iomap;
	struct ata_ioports *ioaddr;
	int n_ports, rc;

	if (!printed_version++)
	dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");

	rc = pcim_enable_device(pdev);
	if (rc)
	return rc;

	n_ports = 2;
	if (board_idx == uli_5287)
	n_ports = 4;

	/* allocate the host */
	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
	if (!host)
	return -ENOMEM;

	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
	if (!hpriv)
	return -ENOMEM;
	host->private_data = hpriv;

	/* the first two ports are standard SFF */
	rc = ata_pci_sff_init_host(host);
	if (rc)
	return rc;

	rc = ata_pci_bmdma_init(host);
	if (rc)
	return rc;

	iomap = host->iomap;

	switch (board_idx) {
	case uli_5287:
	/* If there are four, the last two live right after
	* the standard SFF ports.
	*/
	hpriv->scr_cfg_addr[0] = ULI5287_BASE;
	hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;

	ioaddr = &host->ports[2]->ioaddr;
	ioaddr->cmd_addr = iomap[0] + 8;
	ioaddr->altstatus_addr =
	ioaddr->ctl_addr = (void __iomem *)
	((unsigned long)iomap[1] \| ATA_PCI_CTL_OFS) + 4;
	ioaddr->bmdma_addr = iomap[4] + 16;
	hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
	ata_sff_std_ports(ioaddr);

	ata_port_desc(host->ports[2],
	"cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
	(unsigned long long)pci_resource_start(pdev, 0) + 8,
	((unsigned long long)pci_resource_start(pdev, 1) \| ATA_PCI_CTL_OFS) + 4,
	(unsigned long long)pci_resource_start(pdev, 4) + 16);

	ioaddr = &host->ports[3]->ioaddr;
	ioaddr->cmd_addr = iomap[2] + 8;
	ioaddr->altstatus_addr =
	ioaddr->ctl_addr = (void __iomem *)
	((unsigned long)iomap[3] \| ATA_PCI_CTL_OFS) + 4;
	ioaddr->bmdma_addr = iomap[4] + 24;
	hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
	ata_sff_std_ports(ioaddr);

	ata_port_desc(host->ports[2],
	"cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
	(unsigned long long)pci_resource_start(pdev, 2) + 9,
	((unsigned long long)pci_resource_start(pdev, 3) \| ATA_PCI_CTL_OFS) + 4,
	(unsigned long long)pci_resource_start(pdev, 4) + 24);

	break;

	case uli_5289:
	hpriv->scr_cfg_addr[0] = ULI5287_BASE;
	hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
	break;

	case uli_5281:
	hpriv->scr_cfg_addr[0] = ULI5281_BASE;
	hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
	break;

	default:
	BUG();
	break;
	}

	pci_set_master(pdev);
	pci_intx(pdev, 1);
	return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
	IRQF_SHARED, &uli_sht);
	}

	static int __init uli_init(void)
	{
	return pci_register_driver(&uli_pci_driver);
	}

	static void __exit uli_exit(void)
	{
	pci_unregister_driver(&uli_pci_driver);
	}


	module_init(uli_init);
	module_exit(uli_exit);