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// SPDX-License-Identifier: GPL-2.0+
/*
* comedi/drivers/ni_labpc_pci.c
* Driver for National Instruments Lab-PC PCI-1200
* Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
*/
/*
* Driver: ni_labpc_pci
* Description: National Instruments Lab-PC PCI-1200
* Devices: [National Instruments] PCI-1200 (ni_pci-1200)
* Author: Frank Mori Hess <fmhess@users.sourceforge.net>
* Status: works
*
* This is the PCI-specific support split off from the ni_labpc driver.
*
* Configuration Options: not applicable, uses PCI auto config
*
* NI manuals:
* 340914a (pci-1200)
*/
#include <linux/module.h>
#include <linux/interrupt.h>
#include "../comedi_pci.h"
#include "ni_labpc.h"
enum labpc_pci_boardid {
BOARD_NI_PCI1200,
};
static const struct labpc_boardinfo labpc_pci_boards[] = {
[BOARD_NI_PCI1200] = {
.name = "ni_pci-1200",
.ai_speed = 10000,
.ai_scan_up = 1,
.has_ao = 1,
.is_labpc1200 = 1,
},
};
/* ripped from mite.h and mite_setup2() to avoid mite dependency */
#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */
#define WENAB BIT(7) /* window enable */
static int labpc_pci_mite_init(struct pci_dev *pcidev)
{
void __iomem *mite_base;
u32 main_phys_addr;
/* ioremap the MITE registers (BAR 0) temporarily */
mite_base = pci_ioremap_bar(pcidev, 0);
if (!mite_base)
return -ENOMEM;
/* set data window to main registers (BAR 1) */
main_phys_addr = pci_resource_start(pcidev, 1);
writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
/* finished with MITE registers */
iounmap(mite_base);
return 0;
}
static int labpc_pci_auto_attach(struct comedi_device *dev,
unsigned long context)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
const struct labpc_boardinfo *board = NULL;
int ret;
if (context < ARRAY_SIZE(labpc_pci_boards))
board = &labpc_pci_boards[context];
if (!board)
return -ENODEV;
dev->board_ptr = board;
dev->board_name = board->name;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
ret = labpc_pci_mite_init(pcidev);
if (ret)
return ret;
dev->mmio = pci_ioremap_bar(pcidev, 1);
if (!dev->mmio)
return -ENOMEM;
return labpc_common_attach(dev, pcidev->irq, IRQF_SHARED);
}
static void labpc_pci_detach(struct comedi_device *dev)
{
labpc_common_detach(dev);
comedi_pci_detach(dev);
}
static struct comedi_driver labpc_pci_comedi_driver = {
.driver_name = "labpc_pci",
.module = THIS_MODULE,
.auto_attach = labpc_pci_auto_attach,
.detach = labpc_pci_detach,
};
static const struct pci_device_id labpc_pci_table[] = {
{ PCI_VDEVICE(NI, 0x161), BOARD_NI_PCI1200 },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, labpc_pci_table);
static int labpc_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
return comedi_pci_auto_config(dev, &labpc_pci_comedi_driver,
id->driver_data);
}
static struct pci_driver labpc_pci_driver = {
.name = "labpc_pci",
.id_table = labpc_pci_table,
.probe = labpc_pci_probe,
.remove = comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(labpc_pci_comedi_driver, labpc_pci_driver);
MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
MODULE_AUTHOR("Comedi https://www.comedi.org");
MODULE_LICENSE("GPL");
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