dect: com-on-air: add PCI driver

Signed-off-by: Patrick McHardy <kaber@trash.net>

drivers/dect/coa/Kconfig

@@ -1,3 +1,12 @@
+config DECT_COA_PCI
+	tristate "Com-on-Air PCI DECT support"
+	depends on DECT
+	depends on PCI
+	select DECT_COA
+	select DECT_COA_U2785
+	help
+	  This option enables support for the Com-on-Air DECT PCI devices.
+
 config DECT_COA_CS
 	tristate "Com-on-Air PCMCIA DECT support"
 	depends on DECT

drivers/dect/coa/Makefile

@@ -3,6 +3,7 @@ com_on_air-$(CONFIG_DECT_COA_U2785)	+= radio_u2785.o
 com_on_air-$(CONFIG_DECT_COA_LMX3161)	+= radio_lmx3161.o
 
 obj-$(CONFIG_DECT_COA)			+= com_on_air.o
+obj-$(CONFIG_DECT_COA_PCI)		+= com_on_air_pci.o
 obj-$(CONFIG_DECT_COA_CS)		+= com_on_air_cs.o
 
 $(obj)/sc14421.o:			$(obj)/sc14421_firmware.c

drivers/dect/coa/com_on_air_pci.c

@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2009 Patrick McHardy <kaber@trash.net>
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <net/dect/transceiver.h>
+
+#include "com_on_air.h"
+
+#define PCI_VENDOR_ID_QUICKLOGIC	0x11e3
+#define PCI_DEVICE_ID_COA		0x0001
+
+static int __devinit coa_probe(struct pci_dev *pdev,
+			       const struct pci_device_id *ent)
+{
+	struct dect_transceiver *trx;
+	struct coa_device *dev;
+	void __iomem *base;
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to enable PCI device\n");
+		goto err1;
+	}
+	pci_set_master(pdev);
+
+	err = pci_request_regions(pdev, KBUILD_MODNAME);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to obtain PCI resources\n");
+		goto err2;
+	}
+
+	base = ioremap_nocache(pci_resource_start(pdev, 0),
+			       pci_resource_len(pdev, 0));
+	if (base == NULL) {
+		dev_err(&pdev->dev, "failed to remap PCI resource\n");
+		err = -EIO;
+		goto err3;
+	}
+
+	trx = dect_transceiver_alloc(&sc14421_transceiver_ops, sizeof(*dev));
+	if (trx == NULL) {
+		err = -ENOMEM;
+		goto err4;
+	}
+	pci_set_drvdata(pdev, trx);
+
+	dev = dect_transceiver_priv(trx);
+	dev->type	  = COA_TYPE_PCI;
+	dev->dev	  = &pdev->dev;
+	dev->sc14421_base = base;
+	dev->radio_ops    = &coa_u2785_radio_ops;
+	dev->data_base	  = 0x0a00;
+	dev->data_mask	  = 0x7ff;
+	dev->cfg_reg	  = 0x1fe2;
+	dev->code_base	  = 0x1a00;
+
+	err = sc14421_init_device(dev);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to initialize chip\n");
+		goto err5;
+	}
+
+	err = request_irq(pdev->irq, sc14421_interrupt, IRQF_SHARED,
+			  KBUILD_MODNAME, trx);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to request IRQ%d\n", pdev->irq);
+		goto err6;
+	}
+
+	dev->irq = pdev->irq;
+	err = dect_register_transceiver(trx);
+	if (err < 0)
+		goto err7;
+
+	return 0;
+
+err7:
+	free_irq(pdev->irq, trx);
+err6:
+	sc14421_shutdown_device(dev);
+err5:
+	dect_transceiver_free(trx);
+err4:
+	iounmap(base);
+err3:
+	pci_release_regions(pdev);
+err2:
+	pci_disable_device(pdev);
+err1:
+	return err;
+}
+
+static void __devexit coa_remove(struct pci_dev *pdev)
+{
+	struct dect_transceiver *trx = pci_get_drvdata(pdev);
+	struct coa_device *dev = dect_transceiver_priv(trx);
+
+	sc14421_shutdown_device(dev);
+	free_irq(pdev->irq, trx);
+	iounmap(dev->sc14421_base);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	dect_unregister_transceiver(trx);
+}
+
+static int coa_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct dect_transceiver *trx = pci_get_drvdata(pdev);
+	struct coa_device *dev = dect_transceiver_priv(trx);
+
+	sc14421_shutdown_device(dev);
+	pci_save_state(pdev);
+	return 0;
+}
+
+static int coa_resume(struct pci_dev *pdev)
+{
+	struct dect_transceiver *trx = pci_get_drvdata(pdev);
+	struct coa_device *dev = dect_transceiver_priv(trx);
+
+	pci_restore_state(pdev);
+	return sc14421_init_device(dev);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(coa_pci_tbl) = {
+	{PCI_DEVICE(PCI_VENDOR_ID_QUICKLOGIC, PCI_DEVICE_ID_COA)},
+	{}
+};
+
+static struct pci_driver coa_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= coa_pci_tbl,
+	.probe		= coa_probe,
+	.remove		= __devexit_p(coa_remove),
+	.suspend	= coa_suspend,
+	.resume		= coa_resume,
+};
+
+static int __init coa_pci_init(void)
+{
+	return pci_register_driver(&coa_driver);
+}
+
+static void __exit coa_pci_exit(void)
+{
+	pci_unregister_driver(&coa_driver);
+}
+
+module_init(coa_pci_init);
+module_exit(coa_pci_exit);
+
+MODULE_DESCRIPTION("Dosch&Amand COM-ON-AIR PCI driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, coa_pci_tbl);