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path: root/drivers/uio/uio_pdrv.c
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Diffstat (limited to 'drivers/uio/uio_pdrv.c')
-rw-r--r--drivers/uio/uio_pdrv.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/drivers/uio/uio_pdrv.c b/drivers/uio/uio_pdrv.c
deleted file mode 100644
index 39be9e0..0000000
--- a/drivers/uio/uio_pdrv.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * drivers/uio/uio_pdrv.c
- *
- * Copyright (C) 2008 by Digi International Inc.
- * 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 version 2 as published by
- * the Free Software Foundation.
- */
-#include <linux/platform_device.h>
-#include <linux/uio_driver.h>
-#include <linux/stringify.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#define DRIVER_NAME "uio_pdrv"
-
-struct uio_platdata {
- struct uio_info *uioinfo;
-};
-
-static int uio_pdrv_probe(struct platform_device *pdev)
-{
- struct uio_info *uioinfo = pdev->dev.platform_data;
- struct uio_platdata *pdata;
- struct uio_mem *uiomem;
- int ret = -ENODEV;
- int i;
-
- if (!uioinfo || !uioinfo->name || !uioinfo->version) {
- dev_dbg(&pdev->dev, "%s: err_uioinfo\n", __func__);
- goto err_uioinfo;
- }
-
- pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
- if (!pdata) {
- ret = -ENOMEM;
- dev_dbg(&pdev->dev, "%s: err_alloc_pdata\n", __func__);
- goto err_alloc_pdata;
- }
-
- pdata->uioinfo = uioinfo;
-
- uiomem = &uioinfo->mem[0];
-
- for (i = 0; i < pdev->num_resources; ++i) {
- struct resource *r = &pdev->resource[i];
-
- if (r->flags != IORESOURCE_MEM)
- continue;
-
- if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) {
- dev_warn(&pdev->dev, "device has more than "
- __stringify(MAX_UIO_MAPS)
- " I/O memory resources.\n");
- break;
- }
-
- uiomem->memtype = UIO_MEM_PHYS;
- uiomem->addr = r->start;
- uiomem->size = resource_size(r);
- uiomem->name = r->name;
- ++uiomem;
- }
-
- while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) {
- uiomem->size = 0;
- ++uiomem;
- }
-
- pdata->uioinfo->priv = pdata;
-
- ret = uio_register_device(&pdev->dev, pdata->uioinfo);
-
- if (ret) {
- kfree(pdata);
-err_alloc_pdata:
-err_uioinfo:
- return ret;
- }
-
- platform_set_drvdata(pdev, pdata);
-
- return 0;
-}
-
-static int uio_pdrv_remove(struct platform_device *pdev)
-{
- struct uio_platdata *pdata = platform_get_drvdata(pdev);
-
- uio_unregister_device(pdata->uioinfo);
-
- kfree(pdata);
-
- return 0;
-}
-
-static struct platform_driver uio_pdrv = {
- .probe = uio_pdrv_probe,
- .remove = uio_pdrv_remove,
- .driver = {
- .name = DRIVER_NAME,
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(uio_pdrv);
-
-MODULE_AUTHOR("Uwe Kleine-Koenig");
-MODULE_DESCRIPTION("Userspace I/O platform driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRIVER_NAME);
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