Staging: Add the Meilhaus ME-IDS driver package
Originally written by Guenter Gebhardt <g.gebhardt@meilhaus.de>
and Krzysztof Gantzke <k.gantzke@meilhaus.de>
This is the drv/lnx/mod directory of ME-IDS 1.2.9 tarball with
some files from drv/lnx/include.
Signed-off-by: David Kiliani <mail@davidkiliani.de>
Cc: Guenter Gebhardt <g.gebhardt@meilhaus.de>
Cc: Krzysztof Gantzke <k.gantzke@meilhaus.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/meilhaus/me1400_device.h b/drivers/staging/meilhaus/me1400_device.h
new file mode 100644
index 0000000..6215b25
--- /dev/null
+++ b/drivers/staging/meilhaus/me1400_device.h
@@ -0,0 +1,108 @@
+/**
+ * @file me1400_device.c
+ *
+ * @brief ME-1400 device family instance.
+ * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
+ * @author Guenter Gebhardt
+ */
+
+/*
+ * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
+ *
+ * This file 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; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _ME1400_DEVICE_H_
+#define _ME1400_DEVICE_H_
+
+#include "metypes.h"
+#include "medefines.h"
+#include "meinternal.h"
+
+#include "medevice.h"
+
+#ifdef __KERNEL__
+
+/**
+ * @brief Structure to store device capabilities.
+ */
+typedef struct me1400_version {
+ uint16_t device_id; /**< The PCI device id of the device. */
+ unsigned int dio_chips; /**< The number of 8255 chips on the device. */
+ unsigned int ctr_chips; /**< The number of 8254 chips on the device. */
+ unsigned int ext_irq_subdevices; /**< The number of external interrupt inputs on the device. */
+} me1400_version_t;
+
+/**
+ * @brief Defines for each ME-1400 device version its capabilities.
+ */
+static me1400_version_t me1400_versions[] = {
+ {PCI_DEVICE_ID_MEILHAUS_ME1400, 1, 0, 0},
+ {PCI_DEVICE_ID_MEILHAUS_ME140A, 1, 1, 1},
+ {PCI_DEVICE_ID_MEILHAUS_ME140B, 2, 2, 1},
+ {PCI_DEVICE_ID_MEILHAUS_ME14E0, 1, 0, 0},
+ {PCI_DEVICE_ID_MEILHAUS_ME14EA, 1, 1, 1},
+ {PCI_DEVICE_ID_MEILHAUS_ME14EB, 2, 2, 1},
+ {PCI_DEVICE_ID_MEILHAUS_ME140C, 1, 5, 1},
+ {PCI_DEVICE_ID_MEILHAUS_ME140D, 2, 10, 1},
+ {0}
+};
+
+#define ME1400_DEVICE_VERSIONS (sizeof(me1400_versions) / sizeof(me1400_version_t) - 1) /**< Returns the number of entries in #me1400_versions. */
+
+/**
+ * @brief Returns the index of the device entry in #me1400_versions.
+ *
+ * @param device_id The PCI device id of the device to query.
+ * @return The index of the device in #me1400_versions.
+ */
+static inline unsigned int me1400_versions_get_device_index(uint16_t device_id)
+{
+ unsigned int i;
+ for (i = 0; i < ME1400_DEVICE_VERSIONS; i++)
+ if (me1400_versions[i].device_id == device_id)
+ break;
+ return i;
+}
+
+#define ME1400_MAX_8254 10 /**< The maximum number of 8254 counter subdevices available on any ME-1400 device. */
+#define ME1400_MAX_8255 2 /**< The maximum number of 8255 digital i/o subdevices available on any ME-1400 device. */
+
+/**
+ * @brief The ME-1400 device class.
+ */
+typedef struct me1400_device {
+ me_device_t base; /**< The Meilhaus device base class. */
+
+ spinlock_t clk_src_reg_lock; /**< Guards the 8254 clock source registers. */
+ spinlock_t ctr_ctrl_reg_lock[ME1400_MAX_8254]; /**< Guards the 8254 ctrl registers. */
+
+ int dio_current_mode[ME1400_MAX_8255]; /**< Saves the current mode setting of a single 8255 DIO chip. */
+ spinlock_t dio_ctrl_reg_lock[ME1400_MAX_8255]; /**< Guards the 8255 ctrl register and #dio_current_mode. */
+} me1400_device_t;
+
+/**
+ * @brief The ME-1400 device class constructor.
+ *
+ * @param pci_device The pci device structure given by the PCI subsystem.
+ *
+ * @return On succes a new ME-1400 device instance. \n
+ * NULL on error.
+ */
+me_device_t *me1400_pci_constructor(struct pci_dev *pci_device)
+ __attribute__ ((weak));
+
+#endif
+#endif