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path: root/drivers/staging/dgnc/dgnc_driver.c
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Diffstat (limited to 'drivers/staging/dgnc/dgnc_driver.c')
-rw-r--r--drivers/staging/dgnc/dgnc_driver.c160
1 files changed, 15 insertions, 145 deletions
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index d9bf5da1b8e5..5d8c2d995dcc 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2003 Digi International (www.digi.com)
* Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
*/
#include <linux/kernel.h>
@@ -19,37 +10,34 @@
#include <linux/slab.h>
#include <linux/sched.h>
#include "dgnc_driver.h"
-#include "dgnc_pci.h"
-#include "dgnc_mgmt.h"
#include "dgnc_tty.h"
#include "dgnc_cls.h"
-#include "dgnc_neo.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Digi International, http://www.digi.com");
MODULE_DESCRIPTION("Driver for the Digi International Neo and Classic PCI based product line");
MODULE_SUPPORTED_DEVICE("dgnc");
-static const struct file_operations dgnc_board_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = dgnc_mgmt_ioctl,
- .open = dgnc_mgmt_open,
- .release = dgnc_mgmt_close
-};
-
-uint dgnc_num_boards;
+static unsigned int dgnc_num_boards;
struct dgnc_board *dgnc_board[MAXBOARDS];
-DEFINE_SPINLOCK(dgnc_global_lock);
-DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
-uint dgnc_major;
-int dgnc_poll_tick = 20; /* Poll interval - 20 ms */
-
-static struct class *dgnc_class;
+static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
+static int dgnc_poll_tick = 20; /* Poll interval - 20 ms */
static ulong dgnc_poll_time; /* Time of next poll */
static uint dgnc_poll_stop; /* Used to tell poller to stop */
static struct timer_list dgnc_poll_timer;
+#define DIGI_VID 0x114F
+#define PCI_DEVICE_CLASSIC_4_DID 0x0028
+#define PCI_DEVICE_CLASSIC_8_DID 0x0029
+#define PCI_DEVICE_CLASSIC_4_422_DID 0x00D0
+#define PCI_DEVICE_CLASSIC_8_422_DID 0x00D1
+
+#define PCI_DEVICE_CLASSIC_4_PCI_NAME "ClassicBoard 4 PCI"
+#define PCI_DEVICE_CLASSIC_8_PCI_NAME "ClassicBoard 8 PCI"
+#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME "ClassicBoard 4 422 PCI"
+#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME "ClassicBoard 8 422 PCI"
+
static const struct pci_device_id dgnc_pci_tbl[] = {
{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_DID), .driver_data = 0},
{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_422_DID), .driver_data = 1},
@@ -70,19 +58,6 @@ static const struct board_id dgnc_ids[] = {
{ PCI_DEVICE_CLASSIC_4_422_PCI_NAME, 4, 0 },
{ PCI_DEVICE_CLASSIC_8_PCI_NAME, 8, 0 },
{ PCI_DEVICE_CLASSIC_8_422_PCI_NAME, 8, 0 },
- { PCI_DEVICE_NEO_4_PCI_NAME, 4, 0 },
- { PCI_DEVICE_NEO_8_PCI_NAME, 8, 0 },
- { PCI_DEVICE_NEO_2DB9_PCI_NAME, 2, 0 },
- { PCI_DEVICE_NEO_2DB9PRI_PCI_NAME, 2, 0 },
- { PCI_DEVICE_NEO_2RJ45_PCI_NAME, 2, 0 },
- { PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME, 2, 0 },
- { PCI_DEVICE_NEO_1_422_PCI_NAME, 1, 0 },
- { PCI_DEVICE_NEO_1_422_485_PCI_NAME, 1, 0 },
- { PCI_DEVICE_NEO_2_422_485_PCI_NAME, 2, 0 },
- { PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME, 8, 1 },
- { PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME, 4, 1 },
- { PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME, 4, 1 },
- { PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME, 8, 1 },
{ NULL, 0, 0 }
};
@@ -101,7 +76,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
{
struct dgnc_board *brd;
unsigned int pci_irq;
- int i = 0;
int rc = 0;
brd = kzalloc(sizeof(*brd), GFP_KERNEL);
@@ -110,16 +84,10 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
/* store the info for the board we've found */
brd->boardnum = dgnc_num_boards;
- brd->vendor = dgnc_pci_tbl[id].vendor;
brd->device = dgnc_pci_tbl[id].device;
brd->pdev = pdev;
- brd->pci_bus = pdev->bus->number;
- brd->pci_slot = PCI_SLOT(pdev->devfn);
brd->name = dgnc_ids[id].name;
brd->maxports = dgnc_ids[id].maxports;
- if (dgnc_ids[i].is_pci_express)
- brd->bd_flags |= BD_IS_PCI_EXPRESS;
- brd->dpastatus = BD_NOFEP;
init_waitqueue_head(&brd->state_wait);
spin_lock_init(&brd->bd_lock);
@@ -127,11 +95,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
brd->state = BOARD_FOUND;
- /* store which card & revision we have */
- pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor);
- pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice);
- pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
-
pci_irq = pdev->irq;
brd->irq = pci_irq;
@@ -140,9 +103,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
case PCI_DEVICE_CLASSIC_8_DID:
case PCI_DEVICE_CLASSIC_4_422_DID:
case PCI_DEVICE_CLASSIC_8_422_DID:
-
- brd->dpatype = T_CLASSIC | T_PCIBUS;
-
/*
* For PCI ClassicBoards
* PCI Local Address (i.e. "resource" number) space
@@ -182,9 +142,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
if (rc < 0)
goto failed;
- /* Get and store the board VPD, if it exists */
- brd->bd_ops->vpd(brd);
-
/*
* Enable Local Interrupt 1 (0x1),
* Local Interrupt 1 Polarity Active high (0x2),
@@ -194,55 +151,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id)
break;
- case PCI_DEVICE_NEO_4_DID:
- case PCI_DEVICE_NEO_8_DID:
- case PCI_DEVICE_NEO_2DB9_DID:
- case PCI_DEVICE_NEO_2DB9PRI_DID:
- case PCI_DEVICE_NEO_2RJ45_DID:
- case PCI_DEVICE_NEO_2RJ45PRI_DID:
- case PCI_DEVICE_NEO_1_422_DID:
- case PCI_DEVICE_NEO_1_422_485_DID:
- case PCI_DEVICE_NEO_2_422_485_DID:
- case PCI_DEVICE_NEO_EXPRESS_8_DID:
- case PCI_DEVICE_NEO_EXPRESS_4_DID:
- case PCI_DEVICE_NEO_EXPRESS_4RJ45_DID:
- case PCI_DEVICE_NEO_EXPRESS_8RJ45_DID:
-
- /*
- * This chip is set up 100% when we get to it.
- * No need to enable global interrupts or anything.
- */
- if (brd->bd_flags & BD_IS_PCI_EXPRESS)
- brd->dpatype = T_NEO_EXPRESS | T_PCIBUS;
- else
- brd->dpatype = T_NEO | T_PCIBUS;
-
- brd->membase = pci_resource_start(pdev, 0);
- brd->membase_end = pci_resource_end(pdev, 0);
-
- if (brd->membase & 1)
- brd->membase &= ~3;
- else
- brd->membase &= ~15;
-
- brd->bd_ops = &dgnc_neo_ops;
-
- brd->bd_uart_offset = 0x200;
- brd->bd_dividend = 921600;
-
- rc = dgnc_do_remap(brd);
-
- if (rc < 0)
- goto failed;
-
- /* Read and store the dvid after remapping */
- brd->dvid = readb(brd->re_map_membase + 0x8D);
-
- /* Get and store the board VPD, if it exists */
- brd->bd_ops->vpd(brd);
-
- break;
-
default:
dev_err(&brd->pdev->dev,
"Didn't find any compatible Neo/Classic PCI boards.\n");
@@ -273,7 +181,6 @@ static int dgnc_request_irq(struct dgnc_board *brd)
dev_err(&brd->pdev->dev,
"Failed to hook IRQ %d\n", brd->irq);
brd->state = BOARD_FAILED;
- brd->dpastatus = BD_NOFEP;
return -ENODEV;
}
}
@@ -364,7 +271,6 @@ static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}
brd->state = BOARD_READY;
- brd->dpastatus = BD_RUNNING;
dgnc_board[dgnc_num_boards++] = brd;
@@ -388,32 +294,7 @@ static struct pci_driver dgnc_driver = {
static int dgnc_start(void)
{
- int rc = 0;
unsigned long flags;
- struct device *dev;
-
- rc = register_chrdev(0, "dgnc", &dgnc_board_fops);
- if (rc < 0) {
- pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
- return rc;
- }
- dgnc_major = rc;
-
- dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt");
- if (IS_ERR(dgnc_class)) {
- rc = PTR_ERR(dgnc_class);
- pr_err(DRVSTR ": Can't create dgnc_mgmt class (%d)\n", rc);
- goto failed_class;
- }
-
- dev = device_create(dgnc_class, NULL,
- MKDEV(dgnc_major, 0),
- NULL, "dgnc_mgmt");
- if (IS_ERR(dev)) {
- rc = PTR_ERR(dev);
- pr_err(DRVSTR ": Can't create device (%d)\n", rc);
- goto failed_device;
- }
/* Start the poller */
spin_lock_irqsave(&dgnc_poll_lock, flags);
@@ -425,13 +306,6 @@ static int dgnc_start(void)
add_timer(&dgnc_poll_timer);
return 0;
-
-failed_device:
- class_destroy(dgnc_class);
-failed_class:
- unregister_chrdev(dgnc_major, "dgnc");
-
- return rc;
}
/* Free all the memory associated with a board */
@@ -495,10 +369,6 @@ static void cleanup(void)
/* Turn off poller right away. */
del_timer_sync(&dgnc_poll_timer);
- device_destroy(dgnc_class, MKDEV(dgnc_major, 0));
- class_destroy(dgnc_class);
- unregister_chrdev(dgnc_major, "dgnc");
-
for (i = 0; i < dgnc_num_boards; ++i) {
dgnc_cleanup_tty(dgnc_board[i]);
dgnc_cleanup_board(dgnc_board[i]);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.