[thirdparty/linux.git] / drivers / ata / pata_netcell.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *    pata_netcell.c - Netcell PATA driver
 *
 *	(c) 2006 Red Hat
 */

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

#define DRV_NAME	"pata_netcell"
#define DRV_VERSION	"0.1.7"

/* No PIO or DMA methods needed for this device */

static unsigned int netcell_read_id(struct ata_device *adev,
					struct ata_taskfile *tf, u16 *id)
{
	unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
	/* Firmware forgets to mark words 85-87 valid */
	if (err_mask == 0)
		id[ATA_ID_CSF_DEFAULT] |= 0x4000;
	return err_mask;
}

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

static struct ata_port_operations netcell_ops = {
	.inherits	= &ata_bmdma_port_ops,
	.cable_detect	= ata_cable_80wire,
	.read_id	= netcell_read_id,
};


/**
 *	netcell_init_one - Register Netcell ATA PCI device with kernel services
 *	@pdev: PCI device to register
 *	@ent: Entry in netcell_pci_tbl matching with @pdev
 *
 *	Called from kernel PCI layer.
 *
 *	LOCKING:
 *	Inherited from PCI layer (may sleep).
 *
 *	RETURNS:
 *	Zero on success, or -ERRNO value.
 */

static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
	static const struct ata_port_info info = {
		.flags		= ATA_FLAG_SLAVE_POSS,
		/* Actually we don't really care about these as the
		   firmware deals with it */
		.pio_mask	= ATA_PIO4,
		.mwdma_mask	= ATA_MWDMA2,
		.udma_mask 	= ATA_UDMA5, /* UDMA 133 */
		.port_ops	= &netcell_ops,
	};
	const struct ata_port_info *port_info[] = { &info, NULL };
	int rc;

	ata_print_version_once(&pdev->dev, DRV_VERSION);

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

	/* Any chip specific setup/optimisation/messages here */
	ata_pci_bmdma_clear_simplex(pdev);

	/* And let the library code do the work */
	return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
}

static const struct pci_device_id netcell_pci_tbl[] = {
	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },

	{ }	/* terminate list */
};

static struct pci_driver netcell_pci_driver = {
	.name			= DRV_NAME,
	.id_table		= netcell_pci_tbl,
	.probe			= netcell_init_one,
	.remove			= ata_pci_remove_one,
#ifdef CONFIG_PM_SLEEP
	.suspend		= ata_pci_device_suspend,
	.resume			= ata_pci_device_resume,
#endif
};

module_pci_driver(netcell_pci_driver);

MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
MODULE_VERSION(DRV_VERSION);
Commit	Line	Data
09c434b8	1	// SPDX-License-Identifier: GPL-2.0-only
669a5db4 JG	2	/*
	3	* pata_netcell.c - Netcell PATA driver
	4	*
ab771630	5	* (c) 2006 Red Hat
669a5db4 JG	6	*/
	7
	8	#include <linux/kernel.h>
	9	#include <linux/module.h>
	10	#include <linux/pci.h>
669a5db4 JG	11	#include <linux/blkdev.h>
	12	#include <linux/delay.h>
	13	#include <linux/device.h>
	14	#include <scsi/scsi_host.h>
	15	#include <linux/libata.h>
	16	#include <linux/ata.h>
	17
	18	#define DRV_NAME "pata_netcell"
3b4ba591	19	#define DRV_VERSION "0.1.7"
669a5db4 JG	20
	21	/* No PIO or DMA methods needed for this device */
	22
d3ae33ef AC	23	static unsigned int netcell_read_id(struct ata_device *adev,
	24	struct ata_taskfile tf, u16 id)
	25	{
	26	unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
	27	/* Firmware forgets to mark words 85-87 valid */
	28	if (err_mask == 0)
5284c6b9	29	id[ATA_ID_CSF_DEFAULT] \|= 0x4000;
d3ae33ef AC	30	return err_mask;
	31	}
	32
669a5db4	33	static struct scsi_host_template netcell_sht = {
68d1d07b	34	ATA_BMDMA_SHT(DRV_NAME),
669a5db4 JG	35	};
669a5db4 JG	36
029cfd6b TH	37	static struct ata_port_operations netcell_ops = {
029cfd6b TH	38	.inherits = &ata_bmdma_port_ops,
d3ae33ef AC	39	.cable_detect = ata_cable_80wire,
d3ae33ef AC	40	.read_id = netcell_read_id,
669a5db4 JG	41	};
	42
	43
	44	/**
	45	* netcell_init_one - Register Netcell ATA PCI device with kernel services
	46	* @pdev: PCI device to register
	47	* @ent: Entry in netcell_pci_tbl matching with @pdev
	48	*
	49	* Called from kernel PCI layer.
	50	*
	51	* LOCKING:
	52	* Inherited from PCI layer (may sleep).
	53	*
	54	* RETURNS:
	55	* Zero on success, or -ERRNO value.
	56	*/
	57
	58	static int netcell_init_one (struct pci_dev pdev, const struct pci_device_id ent)
	59	{
1626aeb8	60	static const struct ata_port_info info = {
1d2808fd	61	.flags = ATA_FLAG_SLAVE_POSS,
669a5db4 JG	62	/* Actually we don't really care about these as the
669a5db4 JG	63	firmware deals with it */
14bdef98 EIB	64	.pio_mask = ATA_PIO4,
14bdef98 EIB	65	.mwdma_mask = ATA_MWDMA2,
bf6263a8	66	.udma_mask = ATA_UDMA5, /* UDMA 133 */
669a5db4 JG	67	.port_ops = &netcell_ops,
669a5db4 JG	68	};
1626aeb8	69	const struct ata_port_info *port_info[] = { &info, NULL };
f08048e9	70	int rc;
669a5db4	71
06296a1e	72	ata_print_version_once(&pdev->dev, DRV_VERSION);
669a5db4	73
f08048e9 TH	74	rc = pcim_enable_device(pdev);
	75	if (rc)
	76	return rc;
	77
669a5db4	78	/* Any chip specific setup/optimisation/messages here */
9363c382	79	ata_pci_bmdma_clear_simplex(pdev);
85cd7251	80
669a5db4	81	/* And let the library code do the work */
1c5afdf7	82	return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
669a5db4 JG	83	}
	84
	85	static const struct pci_device_id netcell_pci_tbl[] = {
2d2744fc JG	86	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
2d2744fc JG	87
669a5db4 JG	88	{ } /* terminate list */
	89	};
	90
	91	static struct pci_driver netcell_pci_driver = {
	92	.name = DRV_NAME,
	93	.id_table = netcell_pci_tbl,
	94	.probe = netcell_init_one,
	95	.remove = ata_pci_remove_one,
58eb8cd5	96	#ifdef CONFIG_PM_SLEEP
30ced0f0 AC	97	.suspend = ata_pci_device_suspend,
30ced0f0 AC	98	.resume = ata_pci_device_resume,
438ac6d5	99	#endif
669a5db4 JG	100	};
669a5db4 JG	101
2fc75da0	102	module_pci_driver(netcell_pci_driver);
669a5db4 JG	103
	104	MODULE_AUTHOR("Alan Cox");
	105	MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
	106	MODULE_LICENSE("GPL");
	107	MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
	108	MODULE_VERSION(DRV_VERSION);