basic core: does nothing but registers successfully

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

basic core: does nothing but registers successfully
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
ba88b5e2 · Alessandro Rubini · 1e143662 · ba88b5e2 · ba88b5e2
Commit ba88b5e2 authored Feb 29, 2012 by Alessandro Rubini
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spec-core.c kernel/spec-core.c +75 -0

spec.h kernel/spec.h +66 -0

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--- a/kernel/spec-core.c
+++ b/kernel/spec-core.c
+/*
+ * Copyright (C) 2010-2012 CERN (www.cern.ch)
+ * Author: Alessandro Rubini <rubini@gnudd.com>
+ *
+ * Released according to the GNU GPL, version 2 or any later version.
+ *
+ * This work is part of the White Rabbit project, a research effort led
+ * by CERN, the European Institute for Nuclear Research.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+
+#include "spec.h"
+
+static char *spec_names[SPEC_MAX_BOARDS];
+static int spec_n_names;
+
+module_param_array_named(name, spec_names, charp, &spec_n_names, 0444);
+
+
+DEFINE_PCI_DEVICE_TABLE(spec_idtable) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_CERN, PCI_DEVICE_ID_SPEC) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_GENNUM, PCI_DEVICE_ID_GN4124) },
+	{ 0,},
+};
+
+/* The loader is laid out as a kernel thread, to simplify stuff */
+
+/* FIXME */
+
+static struct list_head spec_list;
+
+/* The probe can be called in atomic context, so all loading is delayed */
+static int spec_probe (struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct spec_dev *dev;
+	printk("%s\n", __func__);
+	/* FIXME */
+	return 0;
+}
+
+static void spec_remove(struct pci_dev *pdev)
+{
+	printk("%s\n", __func__);
+	/* FIXME */
+}
+
+static struct pci_driver spec_driver = {
+	.name = "spec",
+	.id_table = spec_idtable,
+	.probe = spec_probe,
+	.remove = spec_remove,
+};
+
+static int spec_init(void)
+{
+	INIT_LIST_HEAD(&spec_list);
+	return pci_register_driver(&spec_driver);
+}
+
+static void spec_exit(void)
+{
+	pci_unregister_driver(&spec_driver);
+
+}
+
+module_init(spec_init);
+module_exit(spec_exit);
+
+MODULE_LICENSE("GPL");
--- a/kernel/spec.h
+++ b/kernel/spec.h
+/*
+ * Copyright (C) 2010-2012 CERN (www.cern.ch)
+ * Author: Alessandro Rubini <rubini@gnudd.com>
+ *
+ * Released according to the GNU GPL, version 2 or any later version.
+ *
+ * This work is part of the White Rabbit project, a research effort led
+ * by CERN, the European Institute for Nuclear Research.
+ */
+#ifndef __SPEC_H__
+#define __SPEC_H__
+#include <linux/pci.h>
+#include <linux/workqueue.h>
+#include <linux/firmware.h>
+#include <linux/list.h>
+
+#define PCI_VENDOR_ID_CERN	0x10dc
+#define PCI_DEVICE_ID_SPEC		0x018d
+#define PCI_VENDOR_ID_GENNUM	0x1a39
+#define PCI_DEVICE_ID_GN4124		0x0004
+
+#define SPEC_MAX_BOARDS 8
+
+/* Our device structure */
+struct spec_dev {
+	struct pci_driver	*pci_driver;
+	struct pci_dev		*pdev;
+	struct resource		*area[3];	/* bar 0, 2, 4 */
+	void			*remap[3];	/* ioremap of bar 0, 2, 4 */
+	char			*fw_name;
+	char			*elf_name;
+	char			*submod_name;
+	struct work_struct	work;
+	const struct firmware	*fw;
+	struct list_head	list;
+	unsigned long		irqcount;
+};
+
+/* Registers from the gennum header files */
+enum {
+	GNGPIO_BASE = 0xA00,
+	GNGPIO_DIRECTION_MODE = GNGPIO_BASE + 0x4,
+	GNGPIO_OUTPUT_ENABLE = GNGPIO_BASE + 0x8,
+	GNGPIO_OUTPUT_VALUE = GNGPIO_BASE + 0xC,
+	GNGPIO_INPUT_VALUE = GNGPIO_BASE + 0x10,
+
+	FCL_BASE	= 0xB00,
+	FCL_CTRL	= FCL_BASE,
+	FCL_STATUS	= FCL_BASE + 0x4,
+	FCL_IODATA_IN	= FCL_BASE + 0x8,
+	FCL_IODATA_OUT	= FCL_BASE + 0xC,
+	FCL_EN		= FCL_BASE + 0x10,
+	FCL_TIMER_0	= FCL_BASE + 0x14,
+	FCL_TIMER_1	= FCL_BASE + 0x18,
+	FCL_CLK_DIV	= FCL_BASE + 0x1C,
+	FCL_IRQ		= FCL_BASE + 0x20,
+	FCL_TIMER_CTRL	= FCL_BASE + 0x24,
+	FCL_IM		= FCL_BASE + 0x28,
+	FCL_TIMER2_0	= FCL_BASE + 0x2C,
+	FCL_TIMER2_1	= FCL_BASE + 0x30,
+	FCL_DBG_STS	= FCL_BASE + 0x34,
+	FCL_FIFO	= 0xE00,
+	PCI_SYS_CFG_SYSTEM = 0x800
+};
+
+#endif /* __SPEC_H__ */