Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 404 insertions, 0 deletions

diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
new file mode 100644
index 000000000000..d4847d4f1473
--- /dev/null
+++ b/drivers/serial/jsm/jsm_driver.c
@@ -0,0 +1,404 @@
+/************************************************************************
+ * Copyright 2003 Digi International (www.digi.com)
+ *
+ * Copyright (C) 2004 IBM Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 * Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ *
+ * Contact Information:
+ * Scott H Kilau <Scott_Kilau@digi.com>
+ * Wendy Xiong   <wendyx@us.ltcfwd.linux.ibm.com>
+ *
+ ***********************************************************************/
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+
+#include "jsm.h"
+
+MODULE_AUTHOR("Digi International, http://www.digi.com");
+MODULE_DESCRIPTION("Driver for the Digi International Neo PCI based product line");
+MODULE_SUPPORTED_DEVICE("jsm");
+
+#define JSM_DRIVER_NAME "jsm"
+#define NR_PORTS        32
+#define JSM_MINOR_START 0
+
+struct uart_driver jsm_uart_driver = {
+        .owner          = THIS_MODULE,
+        .driver_name    = JSM_DRIVER_NAME,
+        .dev_name       = "ttyn",
+        .major          = 253,
+        .minor          = JSM_MINOR_START,
+        .nr             = NR_PORTS,
+        .cons           = NULL,
+};
+
+int jsm_debug;
+int jsm_rawreadok;
+module_param(jsm_debug, int, 0);
+module_param(jsm_rawreadok, int, 0);
+MODULE_PARM_DESC(jsm_debug, "Driver debugging level");
+MODULE_PARM_DESC(jsm_rawreadok, "Bypass flip buffers on input");
+
+/*
+ * Globals
+ */
+int             jsm_driver_state = DRIVER_INITIALIZED;
+spinlock_t      jsm_board_head_lock = SPIN_LOCK_UNLOCKED;
+LIST_HEAD(jsm_board_head);
+
+static struct pci_device_id jsm_pci_tbl[] = {
+        { PCI_DEVICE (PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2DB9),      0,      0,      0 },
+        { PCI_DEVICE (PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2DB9PRI),   0,      0,      1 },
+        { PCI_DEVICE (PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45),     0,      0,      2 },
+        { PCI_DEVICE (PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_NEO_2RJ45PRI),  0,      0,      3 },
+        { 0,}                                           /* 0 terminated list. */
+};
+MODULE_DEVICE_TABLE(pci, jsm_pci_tbl);
+
+static struct board_id jsm_Ids[] = {
+        { PCI_DEVICE_NEO_2DB9_PCI_NAME,         2 },
+        { PCI_DEVICE_NEO_2DB9PRI_PCI_NAME,      2 },
+        { PCI_DEVICE_NEO_2RJ45_PCI_NAME,        2 },
+        { PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME,     2 },
+        { NULL,                                 0 }
+};
+
+char *jsm_driver_state_text[] = {
+        "Driver Initialized",
+        "Driver Ready."
+};
+
+static int jsm_finalize_board_init(struct jsm_board *brd)
+{
+        int rc = 0;
+
+        jsm_printk(INIT, INFO, &brd->pci_dev, "start\n");
+
+        if (brd->irq) {
+                rc = request_irq(brd->irq, brd->bd_ops->intr, SA_INTERRUPT|SA_SHIRQ, "JSM", brd);
+
+                if (rc) {
+                        printk(KERN_WARNING "Failed to hook IRQ %d\n",brd->irq);
+                        brd->state = BOARD_FAILED;
+                        brd->dpastatus = BD_NOFEP;
+                        rc = -ENODEV;
+                } else
+                        jsm_printk(INIT, INFO, &brd->pci_dev,
+                                "Requested and received usage of IRQ %d\n", brd->irq);
+        }
+        return rc;
+}
+
+/*
+ * jsm_found_board()
+ *
+ * A board has been found, init it.
+ */
+static int jsm_found_board(struct pci_dev *pdev, int id)
+{
+        struct jsm_board *brd;
+        int i = 0;
+        int rc = 0;
+        struct list_head *tmp;
+        struct jsm_board *cur_board_entry;
+        unsigned long lock_flags;
+        int adapter_count = 0;
+        int retval;
+
+        brd = kmalloc(sizeof(struct jsm_board), GFP_KERNEL);
+        if (!brd) {
+                dev_err(&pdev->dev, "memory allocation for board structure failed\n");
+                return -ENOMEM;
+        }
+        memset(brd, 0, sizeof(struct jsm_board));
+
+        spin_lock_irqsave(&jsm_board_head_lock, lock_flags);
+        list_for_each(tmp, &jsm_board_head) {
+                cur_board_entry =
+                        list_entry(tmp, struct jsm_board,
+                                jsm_board_entry);
+                if (cur_board_entry->boardnum != adapter_count) {
+                        break;
+                }
+                adapter_count++;
+        }
+
+        list_add_tail(&brd->jsm_board_entry, &jsm_board_head);
+        spin_unlock_irqrestore(&jsm_board_head_lock, lock_flags);
+
+        /* store the info for the board we've found */
+        brd->boardnum = adapter_count;
+        brd->pci_dev = pdev;
+        brd->name = jsm_Ids[id].name;
+        brd->maxports = jsm_Ids[id].maxports;
+        brd->dpastatus = BD_NOFEP;
+        init_waitqueue_head(&brd->state_wait);
+
+        spin_lock_init(&brd->bd_lock);
+        spin_lock_init(&brd->bd_intr_lock);
+
+        brd->state = BOARD_FOUND;
+
+        for (i = 0; i < brd->maxports; i++)
+                brd->channels[i] = NULL;
+
+        /* store which revision we have */
+        pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
+
+        brd->irq = pdev->irq;
+
+        switch(brd->pci_dev->device) {
+
+        case PCI_DEVICE_ID_NEO_2DB9:
+        case PCI_DEVICE_ID_NEO_2DB9PRI:
+        case PCI_DEVICE_ID_NEO_2RJ45:
+        case PCI_DEVICE_ID_NEO_2RJ45PRI:
+
+                /*
+                 * This chip is set up 100% when we get to it.
+                 * No need to enable global interrupts or anything.
+                 */
+                brd->dpatype = T_NEO | T_PCIBUS;
+
+                jsm_printk(INIT, INFO, &brd->pci_dev,
+                        "jsm_found_board - NEO adapter\n");
+
+                /* get the PCI Base Address Registers */
+                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;
+
+                /* Assign the board_ops struct */
+                brd->bd_ops = &jsm_neo_ops;
+
+                brd->bd_uart_offset = 0x200;
+                brd->bd_dividend = 921600;
+
+                brd->re_map_membase = ioremap(brd->membase, 0x1000);
+                jsm_printk(INIT, INFO, &brd->pci_dev,
+                        "remapped mem: 0x%p\n", brd->re_map_membase);
+                if (!brd->re_map_membase) {
+                        kfree(brd);
+                        dev_err(&pdev->dev, "card has no PCI Memory resources, failing board.\n");
+                        return -ENOMEM;
+                }
+                break;
+
+        default:
+                dev_err(&pdev->dev, "Did not find any compatible Neo or Classic PCI boards in system.\n");
+                kfree(brd);
+                return -ENXIO;
+        }
+
+        /*
+         * Do tty device initialization.
+         */
+        rc = jsm_finalize_board_init(brd);
+        if (rc < 0) {
+                dev_err(&pdev->dev, "Can't finalize board init (%d)\n", rc);
+                brd->state = BOARD_FAILED;
+                retval = -ENXIO;
+                goto failed0;
+        }
+
+        rc = jsm_tty_init(brd);
+        if (rc < 0) {
+                dev_err(&pdev->dev, "Can't init tty devices (%d)\n", rc);
+                brd->state = BOARD_FAILED;
+                retval = -ENXIO;
+                goto failed1;
+        }
+
+        rc = jsm_uart_port_init(brd);
+        if (rc < 0) {
+                dev_err(&pdev->dev, "Can't init uart port (%d)\n", rc);
+                brd->state = BOARD_FAILED;
+                retval = -ENXIO;
+                goto failed1;
+        }
+
+        brd->state = BOARD_READY;
+        brd->dpastatus = BD_RUNNING;
+
+        /* Log the information about the board */
+        dev_info(&pdev->dev, "board %d: %s (rev %d), irq %d\n",adapter_count, brd->name, brd->rev, brd->irq);
+
+        /*
+         * allocate flip buffer for board.
+         *
+         * Okay to malloc with GFP_KERNEL, we are not at interrupt
+         * context, and there are no locks held.
+         */
+        brd->flipbuf = kmalloc(MYFLIPLEN, GFP_KERNEL);
+        if (!brd->flipbuf) {
+                dev_err(&pdev->dev, "memory allocation for flipbuf failed\n");
+                brd->state = BOARD_FAILED;
+                retval = -ENOMEM;
+                goto failed1;
+        }
+        memset(brd->flipbuf, 0, MYFLIPLEN);
+
+        jsm_create_driver_sysfiles(pdev->dev.driver);
+
+        wake_up_interruptible(&brd->state_wait);
+        return 0;
+failed1:
+        free_irq(brd->irq, brd);
+failed0:
+        kfree(brd);
+        iounmap(brd->re_map_membase);
+        return retval;
+}
+
+/* returns count (>= 0), or negative on error */
+static int jsm_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+        int rc;
+
+        rc = pci_enable_device(pdev);
+        if (rc) {
+                dev_err(&pdev->dev, "Device enable FAILED\n");
+                return rc;
+        }
+
+        if ((rc = pci_request_regions(pdev, "jsm"))) {
+        dev_err(&pdev->dev, "pci_request_region FAILED\n");
+                pci_disable_device(pdev);
+                return rc;
+        }
+
+        if ((rc = jsm_found_board(pdev, ent->driver_data))) {
+                dev_err(&pdev->dev, "jsm_found_board FAILED\n");
+                pci_release_regions(pdev);
+                pci_disable_device(pdev);
+                return rc;
+        }
+        return rc;
+}
+
+
+/*
+ * jsm_cleanup_board()
+ *
+ * Free all the memory associated with a board
+ */
+static void jsm_cleanup_board(struct jsm_board *brd)
+{
+        int i = 0;
+
+        free_irq(brd->irq, brd);
+        iounmap(brd->re_map_membase);
+
+        /* Free all allocated channels structs */
+        for (i = 0; i < brd->maxports; i++) {
+                if (brd->channels[i]) {
+                        if (brd->channels[i]->ch_rqueue)
+                                kfree(brd->channels[i]->ch_rqueue);
+                        if (brd->channels[i]->ch_equeue)
+                                kfree(brd->channels[i]->ch_equeue);
+                        if (brd->channels[i]->ch_wqueue)
+                                kfree(brd->channels[i]->ch_wqueue);
+                        kfree(brd->channels[i]);
+                }
+        }
+
+        pci_release_regions(brd->pci_dev);
+        pci_disable_device(brd->pci_dev);
+        kfree(brd->flipbuf);
+        kfree(brd);
+}
+
+static void jsm_remove_one(struct pci_dev *dev)
+{
+        unsigned long lock_flags;
+        struct list_head *tmp;
+        struct jsm_board *brd;
+
+        spin_lock_irqsave(&jsm_board_head_lock, lock_flags);
+        list_for_each(tmp, &jsm_board_head) {
+                brd = list_entry(tmp, struct jsm_board,
+                                        jsm_board_entry);
+                if ( brd != NULL && brd->pci_dev == dev) {
+                        jsm_remove_uart_port(brd);
+                        jsm_cleanup_board(brd);
+                        list_del(&brd->jsm_board_entry);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(&jsm_board_head_lock, lock_flags);
+        return;
+}
+
+struct pci_driver jsm_driver = {
+        .name           = "jsm",
+        .probe          = jsm_init_one,
+        .id_table       = jsm_pci_tbl,
+        .remove         = __devexit_p(jsm_remove_one),
+};
+
+/*
+ * jsm_init_module()
+ *
+ * Module load.  This is where it all starts.
+ */
+static int __init jsm_init_module(void)
+{
+        int rc = 0;
+
+        printk(KERN_INFO "%s, Digi International Part Number %s\n",
+                        JSM_VERSION, JSM_VERSION);
+
+        /*
+         * Initialize global stuff
+         */
+
+        rc = uart_register_driver(&jsm_uart_driver);
+        if (rc < 0) {
+                return rc;
+        }
+
+        rc = pci_register_driver(&jsm_driver);
+        if (rc < 0) {
+                uart_unregister_driver(&jsm_uart_driver);
+                return rc;
+        }
+        jsm_driver_state = DRIVER_READY;
+
+        return rc;
+}
+
+module_init(jsm_init_module);
+
+/*
+ * jsm_exit_module()
+ *
+ * Module unload.  This is where it all ends.
+ */
+static void __exit jsm_exit_module(void)
+{
+        jsm_remove_driver_sysfiles(&jsm_driver.driver);
+
+        pci_unregister_driver(&jsm_driver);
+
+        uart_unregister_driver(&jsm_uart_driver);
+}
+module_exit(jsm_exit_module);
+MODULE_LICENSE("GPL");