Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wireless / b43 / pcmcia.c

diff --git a/kernel/drivers/net/wireless/b43/pcmcia.c b/kernel/drivers/net/wireless/b43/pcmcia.c
new file mode 100644 (file)
index 0000000..55f2bd7
--- /dev/null
+++ b/kernel/drivers/net/wireless/b43/pcmcia.c
@@ -0,0 +1,145 @@
+/*
+
+  Broadcom B43 wireless driver
+
+  Copyright (c) 2007 Michael Buesch <m@bues.ch>
+
+  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.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; 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; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "pcmcia.h"
+
+#include <linux/ssb/ssb.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+
+static const struct pcmcia_device_id b43_pcmcia_tbl[] = {
+       PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
+       PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x476),
+       PCMCIA_DEVICE_NULL,
+};
+
+MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
+
+#ifdef CONFIG_PM
+static int b43_pcmcia_suspend(struct pcmcia_device *dev)
+{
+       struct ssb_bus *ssb = dev->priv;
+
+       return ssb_bus_suspend(ssb);
+}
+
+static int b43_pcmcia_resume(struct pcmcia_device *dev)
+{
+       struct ssb_bus *ssb = dev->priv;
+
+       return ssb_bus_resume(ssb);
+}
+#else /* CONFIG_PM */
+# define b43_pcmcia_suspend            NULL
+# define b43_pcmcia_resume             NULL
+#endif /* CONFIG_PM */
+
+static int b43_pcmcia_probe(struct pcmcia_device *dev)
+{
+       struct ssb_bus *ssb;
+       int err = -ENOMEM;
+       int res = 0;
+
+       ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
+       if (!ssb)
+               goto out_error;
+
+       err = -ENODEV;
+
+       dev->config_flags |= CONF_ENABLE_IRQ;
+
+       dev->resource[2]->flags |=  WIN_ENABLE | WIN_DATA_WIDTH_16 |
+                        WIN_USE_WAIT;
+       dev->resource[2]->start = 0;
+       dev->resource[2]->end = SSB_CORE_SIZE;
+       res = pcmcia_request_window(dev, dev->resource[2], 250);
+       if (res != 0)
+               goto err_kfree_ssb;
+
+       res = pcmcia_map_mem_page(dev, dev->resource[2], 0);
+       if (res != 0)
+               goto err_disable;
+
+       if (!dev->irq)
+               goto err_disable;
+
+       res = pcmcia_enable_device(dev);
+       if (res != 0)
+               goto err_disable;
+
+       err = ssb_bus_pcmciabus_register(ssb, dev, dev->resource[2]->start);
+       if (err)
+               goto err_disable;
+       dev->priv = ssb;
+
+       return 0;
+
+err_disable:
+       pcmcia_disable_device(dev);
+err_kfree_ssb:
+       kfree(ssb);
+out_error:
+       printk(KERN_ERR "b43-pcmcia: Initialization failed (%d, %d)\n",
+              res, err);
+       return err;
+}
+
+static void b43_pcmcia_remove(struct pcmcia_device *dev)
+{
+       struct ssb_bus *ssb = dev->priv;
+
+       ssb_bus_unregister(ssb);
+       pcmcia_disable_device(dev);
+       kfree(ssb);
+       dev->priv = NULL;
+}
+
+static struct pcmcia_driver b43_pcmcia_driver = {
+       .owner          = THIS_MODULE,
+       .name           = "b43-pcmcia",
+       .id_table       = b43_pcmcia_tbl,
+       .probe          = b43_pcmcia_probe,
+       .remove         = b43_pcmcia_remove,
+       .suspend        = b43_pcmcia_suspend,
+       .resume         = b43_pcmcia_resume,
+};
+
+/*
+ * These are not module init/exit functions!
+ * The module_pcmcia_driver() helper cannot be used here.
+ */
+int b43_pcmcia_init(void)
+{
+       return pcmcia_register_driver(&b43_pcmcia_driver);
+}
+
+void b43_pcmcia_exit(void)
+{
+       pcmcia_unregister_driver(&b43_pcmcia_driver);
+}