patch-2.4.20 linux-2.4.20/drivers/gsc/serial.c
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- Lines: 134
- Date:
Thu Nov 28 15:53:12 2002
- Orig file:
linux-2.4.19/drivers/gsc/serial.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/drivers/gsc/serial.c linux-2.4.20/drivers/gsc/serial.c
@@ -0,0 +1,133 @@
+/*
+ * Serial Device Initialisation for LASI/ASP/WAX/DINO
+ *
+ * (c) Copyright 2000 The Puffin Group Inc.
+ * (c) Copyright 2000-2001 Helge Deller <deller@gmx.de>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/signal.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/module.h>
+#include <linux/serial.h>
+#include <linux/slab.h>
+
+#include <asm/serial.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/gsc.h>
+
+#include "busdevice.h"
+
+static void setup_parisc_serial(struct serial_struct *serial,
+ unsigned long address, int irq, int line)
+{
+ memset(serial, 0, sizeof(struct serial_struct));
+
+ /* autoconfig() sets state->type. This sets info->type */
+ serial->type = PORT_16550A;
+
+ serial->line = line;
+ serial->iomem_base = ioremap(address, 0x8);
+
+ serial->irq = irq;
+ serial->io_type = SERIAL_IO_MEM; /* define access method */
+ serial->flags = 0;
+ serial->xmit_fifo_size = 16;
+ serial->custom_divisor = 0;
+ serial->baud_base = LASI_BASE_BAUD;
+}
+
+static int __init
+serial_init_chip(struct parisc_device *dev)
+{
+ static int serial_line_nr;
+ unsigned long address;
+
+ struct serial_struct *serial;
+
+ if (!dev->irq) {
+ if (dev->parent->id.hw_type != HPHW_IOA) {
+ printk(KERN_INFO "Serial: device 0x%lx not configured.\n"
+ "Enable support for Wax, Lasi, Asp or Dino.\n", dev->hpa);
+ }
+ return -ENODEV;
+ }
+
+ serial = kmalloc(sizeof(*serial), GFP_KERNEL);
+ if (!serial)
+ return -ENOMEM;
+
+ address = dev->hpa;
+ if (dev->id.sversion != 0x8d) {
+ address += 0x800;
+ }
+
+ setup_parisc_serial(serial, address, dev->irq, serial_line_nr++);
+
+ if (register_serial(serial) < 0) {
+ printk(KERN_WARNING "register_serial returned error\n");
+ kfree(serial);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static struct parisc_device_id serial_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
+ { 0 }
+};
+
+/* Hack. Dino's serial port will get listed first on some machines.
+ * So we register this driver first which knows about Lasi's serial port.
+ * This needs to get fixed properly somehow.
+ */
+static struct parisc_device_id serial1_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */
+ { HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */
+ { 0 }
+};
+
+
+MODULE_DEVICE_TABLE(parisc, serial_tbl);
+
+static struct parisc_driver serial1_driver = {
+ name: "Serial RS232",
+ id_table: serial1_tbl,
+ probe: serial_init_chip,
+};
+
+static struct parisc_driver serial_driver = {
+ name: "Serial RS232",
+ id_table: serial_tbl,
+ probe: serial_init_chip,
+};
+
+void __init probe_serial_gsc(void)
+{
+ register_parisc_driver(&serial1_driver);
+ register_parisc_driver(&serial_driver);
+}
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