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path: root/drivers/parport/parport_gsc.c
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Diffstat (limited to 'drivers/parport/parport_gsc.c')
-rw-r--r--drivers/parport/parport_gsc.c75
1 files changed, 25 insertions, 50 deletions
diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c
index 3858b87fd0bb..c7e18382dc01 100644
--- a/drivers/parport/parport_gsc.c
+++ b/drivers/parport/parport_gsc.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Low-level parallel-support for PC-style hardware integrated in the
* LASI-Controller (on GSC-Bus) for HP-PARISC Workstations
*
- * 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 of the License, or
- * (at your option) any later version.
- *
* (C) 1999-2001 by Helge Deller <deller@gmx.de>
- *
*
* based on parport_pc.c by
* Grant Guenther <grant@torque.net>
@@ -33,7 +28,6 @@
#include <linux/sysctl.h>
#include <asm/io.h>
-#include <asm/dma.h>
#include <linux/uaccess.h>
#include <asm/superio.h>
@@ -46,7 +40,6 @@
MODULE_AUTHOR("Helge Deller <deller@gmx.de>");
MODULE_DESCRIPTION("HP-PARISC PC-style parallel port driver");
-MODULE_SUPPORTED_DEVICE("integrated PC-style parallel port");
MODULE_LICENSE("GPL");
@@ -232,9 +225,9 @@ static int parport_PS2_supported(struct parport *pb)
/* --- Initialisation code -------------------------------- */
-struct parport *parport_gsc_probe_port(unsigned long base,
+static struct parport *parport_gsc_probe_port(unsigned long base,
unsigned long base_hi, int irq,
- int dma, struct parisc_device *padev)
+ struct parisc_device *padev)
{
struct parport_gsc_private *priv;
struct parport_operations *ops;
@@ -243,25 +236,22 @@ struct parport *parport_gsc_probe_port(unsigned long base,
priv = kzalloc (sizeof (struct parport_gsc_private), GFP_KERNEL);
if (!priv) {
- printk (KERN_DEBUG "parport (0x%lx): no memory!\n", base);
+ printk(KERN_DEBUG "parport (0x%lx): no memory!\n", base);
return NULL;
}
ops = kmemdup(&parport_gsc_ops, sizeof(struct parport_operations),
GFP_KERNEL);
if (!ops) {
- printk (KERN_DEBUG "parport (0x%lx): no memory for ops!\n",
- base);
+ printk(KERN_DEBUG "parport (0x%lx): no memory for ops!\n",
+ base);
kfree (priv);
return NULL;
}
priv->ctr = 0xc;
priv->ctr_writable = 0xff;
- priv->dma_buf = 0;
- priv->dma_handle = 0;
p->base = base;
p->base_hi = base_hi;
p->irq = irq;
- p->dma = dma;
p->modes = PARPORT_MODE_PCSPP | PARPORT_MODE_SAFEININT;
p->ops = ops;
p->private_data = priv;
@@ -287,29 +277,25 @@ struct parport *parport_gsc_probe_port(unsigned long base,
p->size = (p->modes & PARPORT_MODE_EPP)?8:3;
p->private_data = priv;
- printk(KERN_INFO "%s: PC-style at 0x%lx", p->name, p->base);
+ pr_info("%s: PC-style at 0x%lx", p->name, p->base);
p->irq = irq;
if (p->irq == PARPORT_IRQ_AUTO) {
p->irq = PARPORT_IRQ_NONE;
}
- if (p->irq != PARPORT_IRQ_NONE) {
+ if (p->irq != PARPORT_IRQ_NONE)
pr_cont(", irq %d", p->irq);
- if (p->dma == PARPORT_DMA_AUTO) {
- p->dma = PARPORT_DMA_NONE;
- }
- }
- if (p->dma == PARPORT_DMA_AUTO) /* To use DMA, giving the irq
- is mandatory (see above) */
- p->dma = PARPORT_DMA_NONE;
-
pr_cont(" [");
-#define printmode(x) {if(p->modes&PARPORT_MODE_##x){pr_cont("%s%s",f?",":"",#x);f++;}}
+#define printmode(x) \
+do { \
+ if (p->modes & PARPORT_MODE_##x) \
+ pr_cont("%s%s", f++ ? "," : "", #x); \
+} while (0)
{
int f = 0;
printmode(PCSPP);
printmode(TRISTATE);
- printmode(COMPAT)
+ printmode(COMPAT);
printmode(EPP);
// printmode(ECP);
// printmode(DMA);
@@ -320,11 +306,9 @@ struct parport *parport_gsc_probe_port(unsigned long base,
if (p->irq != PARPORT_IRQ_NONE) {
if (request_irq (p->irq, parport_irq_handler,
0, p->name, p)) {
- printk (KERN_WARNING "%s: irq %d in use, "
- "resorting to polled operation\n",
+ pr_warn("%s: irq %d in use, resorting to polled operation\n",
p->name, p->irq);
p->irq = PARPORT_IRQ_NONE;
- p->dma = PARPORT_DMA_NONE;
}
}
@@ -346,13 +330,13 @@ struct parport *parport_gsc_probe_port(unsigned long base,
static int parport_count;
-static int parport_init_chip(struct parisc_device *dev)
+static int __init parport_init_chip(struct parisc_device *dev)
{
struct parport *p;
unsigned long port;
if (!dev->irq) {
- printk(KERN_WARNING "IRQ not found for parallel device at 0x%llx\n",
+ pr_warn("IRQ not found for parallel device at 0x%llx\n",
(unsigned long long)dev->hpa.start);
return -ENODEV;
}
@@ -365,15 +349,14 @@ static int parport_init_chip(struct parisc_device *dev)
if (boot_cpu_data.cpu_type > pcxt && !pdc_add_valid(port+4)) {
/* Initialize bidirectional-mode (0x10) & data-tranfer-mode #1 (0x20) */
- printk("%s: initialize bidirectional-mode.\n", __func__);
+ pr_info("%s: initialize bidirectional-mode\n", __func__);
parport_writeb ( (0x10 + 0x20), port + 4);
} else {
- printk("%s: enhanced parport-modes not supported.\n", __func__);
+ pr_info("%s: enhanced parport-modes not supported\n", __func__);
}
- p = parport_gsc_probe_port(port, 0, dev->irq,
- /* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, dev);
+ p = parport_gsc_probe_port(port, 0, dev->irq, dev);
if (p)
parport_count++;
dev_set_drvdata(&dev->dev, p);
@@ -381,43 +364,35 @@ static int parport_init_chip(struct parisc_device *dev)
return 0;
}
-static int parport_remove_chip(struct parisc_device *dev)
+static void __exit parport_remove_chip(struct parisc_device *dev)
{
struct parport *p = dev_get_drvdata(&dev->dev);
if (p) {
- struct parport_gsc_private *priv = p->private_data;
struct parport_operations *ops = p->ops;
parport_remove_port(p);
- if (p->dma != PARPORT_DMA_NONE)
- free_dma(p->dma);
if (p->irq != PARPORT_IRQ_NONE)
free_irq(p->irq, p);
- if (priv->dma_buf)
- pci_free_consistent(priv->dev, PAGE_SIZE,
- priv->dma_buf,
- priv->dma_handle);
kfree (p->private_data);
parport_put_port(p);
kfree (ops); /* hope no-one cached it */
}
- return 0;
}
-static struct parisc_device_id parport_tbl[] = {
+static const struct parisc_device_id parport_tbl[] __initconst = {
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x74 },
{ 0, }
};
MODULE_DEVICE_TABLE(parisc, parport_tbl);
-static struct parisc_driver parport_driver = {
+static struct parisc_driver parport_driver __refdata = {
.name = "Parallel",
.id_table = parport_tbl,
.probe = parport_init_chip,
- .remove = parport_remove_chip,
+ .remove = __exit_p(parport_remove_chip),
};
-int parport_gsc_init(void)
+static int parport_gsc_init(void)
{
return register_parisc_driver(&parport_driver);
}
generated by cgit (git 2.34.1) at 2025-12-25 09:28:24 +0000