Eric Lee / smarc-fsl-linux-kernel

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drivers/ata/pata_netcell.c 2.59 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  /*
   *    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);