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Diffstat (limited to 'cleopatre/linux-2.6.25.10-spc300/drivers/ata/pata_isapnp.c')
-rw-r--r--cleopatre/linux-2.6.25.10-spc300/drivers/ata/pata_isapnp.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/cleopatre/linux-2.6.25.10-spc300/drivers/ata/pata_isapnp.c b/cleopatre/linux-2.6.25.10-spc300/drivers/ata/pata_isapnp.c
new file mode 100644
index 0000000000..4320e79863
--- /dev/null
+++ b/cleopatre/linux-2.6.25.10-spc300/drivers/ata/pata_isapnp.c
@@ -0,0 +1,172 @@
+
+/*
+ * pata-isapnp.c - ISA PnP PATA controller driver.
+ * Copyright 2005/2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
+ *
+ * Based in part on ide-pnp.c by Andrey Panin <pazke@donpac.ru>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/isapnp.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <scsi/scsi_host.h>
+#include <linux/ata.h>
+#include <linux/libata.h>
+
+#define DRV_NAME "pata_isapnp"
+#define DRV_VERSION "0.2.2"
+
+static struct scsi_host_template isapnp_sht = {
+ .module = THIS_MODULE,
+ .name = DRV_NAME,
+ .ioctl = ata_scsi_ioctl,
+ .queuecommand = ata_scsi_queuecmd,
+ .can_queue = ATA_DEF_QUEUE,
+ .this_id = ATA_SHT_THIS_ID,
+ .sg_tablesize = LIBATA_MAX_PRD,
+ .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,
+ .slave_destroy = ata_scsi_slave_destroy,
+ .bios_param = ata_std_bios_param,
+};
+
+static struct ata_port_operations isapnp_port_ops = {
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ata_bmdma_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .cable_detect = ata_cable_40wire,
+
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+
+ .data_xfer = ata_data_xfer,
+
+ .irq_clear = ata_bmdma_irq_clear,
+ .irq_on = ata_irq_on,
+
+ .port_start = ata_sff_port_start,
+};
+
+/**
+ * isapnp_init_one - attach an isapnp interface
+ * @idev: PnP device
+ * @dev_id: matching detect line
+ *
+ * Register an ISA bus IDE interface. Such interfaces are PIO 0 and
+ * non shared IRQ.
+ */
+
+static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev_id)
+{
+ struct ata_host *host;
+ struct ata_port *ap;
+ void __iomem *cmd_addr, *ctl_addr;
+ int irq = 0;
+ irq_handler_t handler = NULL;
+
+ if (pnp_port_valid(idev, 0) == 0)
+ return -ENODEV;
+
+ if (pnp_irq_valid(idev, 0)) {
+ irq = pnp_irq(idev, 0);
+ handler = ata_interrupt;
+ }
+
+ /* allocate host */
+ host = ata_host_alloc(&idev->dev, 1);
+ if (!host)
+ return -ENOMEM;
+
+ /* acquire resources and fill host */
+ cmd_addr = devm_ioport_map(&idev->dev, pnp_port_start(idev, 0), 8);
+ if (!cmd_addr)
+ return -ENOMEM;
+
+ ap = host->ports[0];
+
+ ap->ops = &isapnp_port_ops;
+ ap->pio_mask = 1;
+ ap->flags |= ATA_FLAG_SLAVE_POSS;
+
+ ap->ioaddr.cmd_addr = cmd_addr;
+
+ if (pnp_port_valid(idev, 1) == 0) {
+ ctl_addr = devm_ioport_map(&idev->dev,
+ pnp_port_start(idev, 1), 1);
+ ap->ioaddr.altstatus_addr = ctl_addr;
+ ap->ioaddr.ctl_addr = ctl_addr;
+ }
+
+ ata_std_ports(&ap->ioaddr);
+
+ ata_port_desc(ap, "cmd 0x%llx ctl 0x%llx",
+ (unsigned long long)pnp_port_start(idev, 0),
+ (unsigned long long)pnp_port_start(idev, 1));
+
+ /* activate */
+ return ata_host_activate(host, irq, handler, 0,
+ &isapnp_sht);
+}
+
+/**
+ * isapnp_remove_one - unplug an isapnp interface
+ * @idev: PnP device
+ *
+ * Remove a previously configured PnP ATA port. Called only on module
+ * unload events as the core does not currently deal with ISAPnP docking.
+ */
+
+static void isapnp_remove_one(struct pnp_dev *idev)
+{
+ struct device *dev = &idev->dev;
+ struct ata_host *host = dev_get_drvdata(dev);
+
+ ata_host_detach(host);
+}
+
+static struct pnp_device_id isapnp_devices[] = {
+ /* Generic ESDI/IDE/ATA compatible hard disk controller */
+ {.id = "PNP0600", .driver_data = 0},
+ {.id = ""}
+};
+
+MODULE_DEVICE_TABLE(pnp, isapnp_devices);
+
+static struct pnp_driver isapnp_driver = {
+ .name = DRV_NAME,
+ .id_table = isapnp_devices,
+ .probe = isapnp_init_one,
+ .remove = isapnp_remove_one,
+};
+
+static int __init isapnp_init(void)
+{
+ return pnp_register_driver(&isapnp_driver);
+}
+
+static void __exit isapnp_exit(void)
+{
+ pnp_unregister_driver(&isapnp_driver);
+}
+
+MODULE_AUTHOR("Alan Cox");
+MODULE_DESCRIPTION("low-level driver for ISA PnP ATA");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(isapnp_init);
+module_exit(isapnp_exit);