--- /dev/null
+/* orinoco_tmd.c
+ *
+ * Driver for Prism II devices which would usually be driven by orinoco_cs,
+ * but are connected to the PCI bus by a TMD7160.
+ *
+ * Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net>
+ * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * The actual driving is done by main.c, this is just resource
+ * allocation stuff.
+ *
+ * This driver is modeled after the orinoco_plx driver. The main
+ * difference is that the TMD chip has only IO port ranges and doesn't
+ * provide access to the PCMCIA attribute space.
+ *
+ * Pheecom sells cards with the TMD chip as "ASIC version"
+ */
+
+#define DRIVER_NAME "orinoco_tmd"
+#define PFX DRIVER_NAME ": "
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <pcmcia/cisreg.h>
+
+#include "orinoco.h"
+#include "orinoco_pci.h"
+
+#define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
+#define COR_RESET (0x80) /* reset bit in the COR register */
+#define TMD_RESET_TIME (500) /* milliseconds */
+
+/*
+ * Do a soft reset of the card using the Configuration Option Register
+ */
+static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
+{
+ struct hermes *hw = &priv->hw;
+ struct orinoco_pci_card *card = priv->card;
+ unsigned long timeout;
+ u16 reg;
+
+ iowrite8(COR_VALUE | COR_RESET, card->bridge_io);
+ mdelay(1);
+
+ iowrite8(COR_VALUE, card->bridge_io);
+ mdelay(1);
+
+ /* Just in case, wait more until the card is no longer busy */
+ timeout = jiffies + msecs_to_jiffies(TMD_RESET_TIME);
+ reg = hermes_read_regn(hw, CMD);
+ while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) {
+ mdelay(1);
+ reg = hermes_read_regn(hw, CMD);
+ }
+
+ /* Still busy? */
+ if (reg & HERMES_CMD_BUSY) {
+ printk(KERN_ERR PFX "Busy timeout\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+
+static int orinoco_tmd_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int err;
+ struct orinoco_private *priv;
+ struct orinoco_pci_card *card;
+ void __iomem *hermes_io, *bridge_io;
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ printk(KERN_ERR PFX "Cannot enable PCI device\n");
+ return err;
+ }
+
+ err = pci_request_regions(pdev, DRIVER_NAME);
+ if (err) {
+ printk(KERN_ERR PFX "Cannot obtain PCI resources\n");
+ goto fail_resources;
+ }
+
+ bridge_io = pci_iomap(pdev, 1, 0);
+ if (!bridge_io) {
+ printk(KERN_ERR PFX "Cannot map bridge registers\n");
+ err = -EIO;
+ goto fail_map_bridge;
+ }
+
+ hermes_io = pci_iomap(pdev, 2, 0);
+ if (!hermes_io) {
+ printk(KERN_ERR PFX "Cannot map chipset registers\n");
+ err = -EIO;
+ goto fail_map_hermes;
+ }
+
+ /* Allocate network device */
+ priv = alloc_orinocodev(sizeof(*card), &pdev->dev,
+ orinoco_tmd_cor_reset, NULL);
+ if (!priv) {
+ printk(KERN_ERR PFX "Cannot allocate network device\n");
+ err = -ENOMEM;
+ goto fail_alloc;
+ }
+
+ card = priv->card;
+ card->bridge_io = bridge_io;
+
+ hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING);
+
+ err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
+ DRIVER_NAME, priv);
+ if (err) {
+ printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);
+ err = -EBUSY;
+ goto fail_irq;
+ }
+
+ err = orinoco_tmd_cor_reset(priv);
+ if (err) {
+ printk(KERN_ERR PFX "Initial reset failed\n");
+ goto fail;
+ }
+
+ err = orinoco_init(priv);
+ if (err) {
+ printk(KERN_ERR PFX "orinoco_init() failed\n");
+ goto fail;
+ }
+
+ err = orinoco_if_add(priv, 0, 0, NULL);
+ if (err) {
+ printk(KERN_ERR PFX "orinoco_if_add() failed\n");
+ goto fail;
+ }
+
+ pci_set_drvdata(pdev, priv);
+
+ return 0;
+
+ fail:
+ free_irq(pdev->irq, priv);
+
+ fail_irq:
+ free_orinocodev(priv);
+
+ fail_alloc:
+ pci_iounmap(pdev, hermes_io);
+
+ fail_map_hermes:
+ pci_iounmap(pdev, bridge_io);
+
+ fail_map_bridge:
+ pci_release_regions(pdev);
+
+ fail_resources:
+ pci_disable_device(pdev);
+
+ return err;
+}
+
+static void orinoco_tmd_remove_one(struct pci_dev *pdev)
+{
+ struct orinoco_private *priv = pci_get_drvdata(pdev);
+ struct orinoco_pci_card *card = priv->card;
+
+ orinoco_if_del(priv);
+ free_irq(pdev->irq, priv);
+ free_orinocodev(priv);
+ pci_iounmap(pdev, priv->hw.iobase);
+ pci_iounmap(pdev, card->bridge_io);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+static const struct pci_device_id orinoco_tmd_id_table[] = {
+ {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */
+ {0,},
+};
+
+MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table);
+
+static struct pci_driver orinoco_tmd_driver = {
+ .name = DRIVER_NAME,
+ .id_table = orinoco_tmd_id_table,
+ .probe = orinoco_tmd_init_one,
+ .remove = orinoco_tmd_remove_one,
+ .suspend = orinoco_pci_suspend,
+ .resume = orinoco_pci_resume,
+};
+
+static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
+ " (Joerg Dorchain <joerg@dorchain.net>)";
+MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
+MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge");
+MODULE_LICENSE("Dual MPL/GPL");
+
+static int __init orinoco_tmd_init(void)
+{
+ printk(KERN_DEBUG "%s\n", version);
+ return pci_register_driver(&orinoco_tmd_driver);
+}
+
+static void __exit orinoco_tmd_exit(void)
+{
+ pci_unregister_driver(&orinoco_tmd_driver);
+}
+
+module_init(orinoco_tmd_init);
+module_exit(orinoco_tmd_exit);
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
Code Review / kvmfornfv.git / blobdiff