Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 196 insertions, 0 deletions

diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c
new file mode 100644
index 000000000..e9b52e4a4
--- /dev/null
+++ b/drivers/parport/parport_cs.c
@@ -0,0 +1,196 @@
+/*======================================================================
+
+    A driver for PCMCIA parallel port adapters
+
+    (specifically, for the Quatech SPP-100 EPP card: other cards will
+    probably require driver tweaks)
+    
+    parport_cs.c 1.29 2002/10/11 06:57:41
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is David A. Hinds
+    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU General Public License version 2 (the "GPL"), in
+    which case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+    
+======================================================================*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/major.h>
+#include <linux/interrupt.h>
+
+#include <linux/parport.h>
+#include <linux/parport_pc.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ciscode.h>
+
+/*====================================================================*/
+
+/* Module parameters */
+
+MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
+MODULE_DESCRIPTION("PCMCIA parallel port card driver");
+MODULE_LICENSE("Dual MPL/GPL");
+
+#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
+
+INT_MODULE_PARM(epp_mode, 1);
+
+
+/*====================================================================*/
+
+#define FORCE_EPP_MODE	0x08
+
+typedef struct parport_info_t {
+	struct pcmcia_device	*p_dev;
+    int			ndev;
+    struct parport	*port;
+} parport_info_t;
+
+static void parport_detach(struct pcmcia_device *p_dev);
+static int parport_config(struct pcmcia_device *link);
+static void parport_cs_release(struct pcmcia_device *);
+
+static int parport_probe(struct pcmcia_device *link)
+{
+    parport_info_t *info;
+
+    dev_dbg(&link->dev, "parport_attach()\n");
+
+    /* Create new parport device */
+    info = kzalloc(sizeof(*info), GFP_KERNEL);
+    if (!info) return -ENOMEM;
+    link->priv = info;
+    info->p_dev = link;
+
+    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+
+    return parport_config(link);
+} /* parport_attach */
+
+static void parport_detach(struct pcmcia_device *link)
+{
+    dev_dbg(&link->dev, "parport_detach\n");
+
+    parport_cs_release(link);
+
+    kfree(link->priv);
+} /* parport_detach */
+
+static int parport_config_check(struct pcmcia_device *p_dev, void *priv_data)
+{
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
+
+	return pcmcia_request_io(p_dev);
+}
+
+static int parport_config(struct pcmcia_device *link)
+{
+    parport_info_t *info = link->priv;
+    struct parport *p;
+    int ret;
+
+    dev_dbg(&link->dev, "parport_config\n");
+
+    if (epp_mode)
+	    link->config_index |= FORCE_EPP_MODE;
+
+    ret = pcmcia_loop_config(link, parport_config_check, NULL);
+    if (ret)
+	    goto failed;
+
+    if (!link->irq)
+	    goto failed;
+    ret = pcmcia_enable_device(link);
+    if (ret)
+	    goto failed;
+
+    p = parport_pc_probe_port(link->resource[0]->start,
+			      link->resource[1]->start,
+			      link->irq, PARPORT_DMA_NONE,
+			      &link->dev, IRQF_SHARED);
+    if (p == NULL) {
+	printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
+	       "0x%3x, irq %u failed\n",
+	       (unsigned int) link->resource[0]->start,
+	       link->irq);
+	goto failed;
+    }
+
+    p->modes |= PARPORT_MODE_PCSPP;
+    if (epp_mode)
+	p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
+    info->ndev = 1;
+    info->port = p;
+
+    return 0;
+
+failed:
+    parport_cs_release(link);
+    return -ENODEV;
+} /* parport_config */
+
+static void parport_cs_release(struct pcmcia_device *link)
+{
+	parport_info_t *info = link->priv;
+
+	dev_dbg(&link->dev, "parport_release\n");
+
+	if (info->ndev) {
+		struct parport *p = info->port;
+		parport_pc_unregister_port(p);
+	}
+	info->ndev = 0;
+
+	pcmcia_disable_device(link);
+} /* parport_cs_release */
+
+
+static const struct pcmcia_device_id parport_ids[] = {
+	PCMCIA_DEVICE_FUNC_ID(3),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc),
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
+	PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, parport_ids);
+
+static struct pcmcia_driver parport_cs_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "parport_cs",
+	.probe		= parport_probe,
+	.remove		= parport_detach,
+	.id_table	= parport_ids,
+};
+module_pcmcia_driver(parport_cs_driver);