/* Copyright (C) 2004 - 2008 rt2x00 SourceForge Project <http://rt2x00.serialmonkey.com> This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Module: rt2x00pci Abstract: Data structures for the rt2x00pci module. */ #ifndef RT2X00PCI_H #define RT2X00PCI_H #include <linux/io.h> /* * This variable should be used with the * pci_driver structure initialization. */ #define PCI_DEVICE_DATA(__ops) .driver_data = (kernel_ulong_t)(__ops) /* * Register defines. * Some registers require multiple attempts before success, * in those cases REGISTER_BUSY_COUNT attempts should be * taken with a REGISTER_BUSY_DELAY interval. */ #define REGISTER_BUSY_COUNT 5 #define REGISTER_BUSY_DELAY 100 /* * Descriptor availability flags. * All PCI device descriptors have these 2 flags * with the exact same definition. * By storing them here we can use them inside rt2x00pci * for some simple entry availability checking. */ #define TXD_ENTRY_OWNER_NIC FIELD32(0x00000001) #define TXD_ENTRY_VALID FIELD32(0x00000002) #define RXD_ENTRY_OWNER_NIC FIELD32(0x00000001) /* * Register access. */ static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev, const unsigned long offset, u32 *value) { *value = readl(rt2x00dev->csr.base + offset); } static inline void rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev, const unsigned long offset, void *value, const u16 length) { memcpy_fromio(value, rt2x00dev->csr.base + offset, length); } static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, const unsigned long offset, u32 value) { writel(value, rt2x00dev->csr.base + offset); } static inline void rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, const unsigned long offset, const void *value, const u16 length) { memcpy_toio(rt2x00dev->csr.base + offset, value, length); } /** * rt2x00pci_write_tx_data - Initialize data for TX operation * @entry: The entry where the frame is located * * This function will initialize the DMA and skb descriptor * to prepare the entry for the actual TX operation. */ int rt2x00pci_write_tx_data(struct queue_entry *entry); /** * struct queue_entry_priv_pci: Per entry PCI specific information * * @desc: Pointer to device descriptor * @desc_dma: DMA pointer to &desc. * @data: Pointer to device's entry memory. * @data_dma: DMA pointer to &data. */ struct queue_entry_priv_pci { __le32 *desc; dma_addr_t desc_dma; }; /** * rt2x00pci_rxdone - Handle RX done events * @rt2x00dev: Device pointer, see &struct rt2x00_dev. */ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev); /* * Device initialization handlers. */ int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev); void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev); /* * PCI driver handlers. */ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); void rt2x00pci_remove(struct pci_dev *pci_dev); #ifdef CONFIG_PM int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state); int rt2x00pci_resume(struct pci_dev *pci_dev); #else #define rt2x00pci_suspend NULL #define rt2x00pci_resume NULL #endif /* CONFIG_PM */ #endif /* RT2X00PCI_H */