Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / ata / pata_netcell.c

diff --git a/kernel/drivers/ata/pata_netcell.c b/kernel/drivers/ata/pata_netcell.c
new file mode 100644 (file)
index 0000000..0ea1833
--- /dev/null
+++ b/kernel/drivers/ata/pata_netcell.c
@@ -0,0 +1,107 @@
+/*
+ *    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);