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Diffstat (limited to 'drivers/staging/meilhaus/me1600_device.h')
| -rw-r--r-- | drivers/staging/meilhaus/me1600_device.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/staging/meilhaus/me1600_device.h b/drivers/staging/meilhaus/me1600_device.h new file mode 100644 index 000000000000..f7b231f73ac8 --- /dev/null +++ b/drivers/staging/meilhaus/me1600_device.h @@ -0,0 +1,101 @@ +/** + * @file me1600_device.h + * + * @brief ME-1600 device class. + * @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 _ME1600_H +#define _ME1600_H + +#include <linux/pci.h> +#include <linux/spinlock.h> + +#include "medevice.h" +#include "me1600_ao.h" +#include "me1600_ao_reg.h" + +#ifdef __KERNEL__ + +/** + * @brief Structure to store device capabilities. + */ +typedef struct me1600_version { + uint16_t device_id; /**< The PCI device id of the device. */ + unsigned int ao_chips; /**< The number of analog outputs on the device. */ + int curr; /**< Flag to identify amounts of current output. */ +} me1600_version_t; + +/** + * @brief Defines for each ME-1600 device version its capabilities. + */ +static me1600_version_t me1600_versions[] = { + {PCI_DEVICE_ID_MEILHAUS_ME1600_4U, 4, 0}, + {PCI_DEVICE_ID_MEILHAUS_ME1600_8U, 8, 0}, + {PCI_DEVICE_ID_MEILHAUS_ME1600_12U, 12, 0}, + {PCI_DEVICE_ID_MEILHAUS_ME1600_16U, 16, 0}, + {PCI_DEVICE_ID_MEILHAUS_ME1600_16U_8I, 16, 8}, + {0} +}; + +/**< Returns the number of entries in #me1600_versions. */ +#define ME1600_DEVICE_VERSIONS (sizeof(me1600_versions) / sizeof(me1600_version_t) - 1) + +/** + * @brief Returns the index of the device entry in #me1600_versions. + * + * @param device_id The PCI device id of the device to query. + * @return The index of the device in #me1600_versions. + */ +static inline unsigned int me1600_versions_get_device_index(uint16_t device_id) +{ + unsigned int i; + for (i = 0; i < ME1600_DEVICE_VERSIONS; i++) + if (me1600_versions[i].device_id == device_id) + break; + return i; +} + +/** + * @brief The ME-1600 device class structure. + */ +typedef struct me1600_device { + me_device_t base; /**< The Meilhaus device base class. */ + spinlock_t config_regs_lock; /**< Protects the configuration registers. */ + + me1600_ao_shadow_t ao_regs_shadows; /**< Addresses and shadows of output's registers. */ + spinlock_t ao_shadows_lock; /**< Protects the shadow's struct. */ +} me1600_device_t; + +/** + * @brief The ME-1600 device class constructor. + * + * @param pci_device The pci device structure given by the PCI subsystem. + * + * @return On succes a new ME-1600 device instance. \n + * NULL on error. + */ +me_device_t *me1600_pci_constructor(struct pci_dev *pci_device) + __attribute__ ((weak)); + +#endif +#endif |