| /** |
| * @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 |