1/* 2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> 3 <http://rt2x00.serialmonkey.com> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the 17 Free Software Foundation, Inc., 18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 */ 20 21/* 22 Module: rt2x00pci 23 Abstract: Data structures for the rt2x00pci module. 24 */ 25 26#ifndef RT2X00PCI_H 27#define RT2X00PCI_H 28 29#include <linux/io.h> 30#include <linux/pci.h> 31 32/* 33 * This variable should be used with the 34 * pci_driver structure initialization. 35 */ 36#define PCI_DEVICE_DATA(__ops) .driver_data = (kernel_ulong_t)(__ops) 37 38/* 39 * Register access. 40 */ 41static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev, 42 const unsigned int offset, 43 u32 *value) 44{ 45 *value = readl(rt2x00dev->csr.base + offset); 46} 47 48static inline void rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev, 49 const unsigned int offset, 50 void *value, const u32 length) 51{ 52 memcpy_fromio(value, rt2x00dev->csr.base + offset, length); 53} 54 55static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, 56 const unsigned int offset, 57 u32 value) 58{ 59 writel(value, rt2x00dev->csr.base + offset); 60} 61 62static inline void rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, 63 const unsigned int offset, 64 const void *value, 65 const u32 length) 66{ 67 memcpy_toio(rt2x00dev->csr.base + offset, value, length); 68} 69 70/** 71 * rt2x00pci_regbusy_read - Read from register with busy check 72 * @rt2x00dev: Device pointer, see &struct rt2x00_dev. 73 * @offset: Register offset 74 * @field: Field to check if register is busy 75 * @reg: Pointer to where register contents should be stored 76 * 77 * This function will read the given register, and checks if the 78 * register is busy. If it is, it will sleep for a couple of 79 * microseconds before reading the register again. If the register 80 * is not read after a certain timeout, this function will return 81 * FALSE. 82 */ 83int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev, 84 const unsigned int offset, 85 const struct rt2x00_field32 field, 86 u32 *reg); 87 88/** 89 * struct queue_entry_priv_pci: Per entry PCI specific information 90 * 91 * @desc: Pointer to device descriptor 92 * @desc_dma: DMA pointer to &desc. 93 * @data: Pointer to device's entry memory. 94 * @data_dma: DMA pointer to &data. 95 */ 96struct queue_entry_priv_pci { 97 __le32 *desc; 98 dma_addr_t desc_dma; 99}; 100 101/** 102 * rt2x00pci_rxdone - Handle RX done events 103 * @rt2x00dev: Device pointer, see &struct rt2x00_dev. 104 */ 105void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev); 106 107/* 108 * Device initialization handlers. 109 */ 110int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev); 111void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev); 112 113/* 114 * PCI driver handlers. 115 */ 116int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); 117void rt2x00pci_remove(struct pci_dev *pci_dev); 118#ifdef CONFIG_PM 119int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state); 120int rt2x00pci_resume(struct pci_dev *pci_dev); 121#else 122#define rt2x00pci_suspend NULL 123#define rt2x00pci_resume NULL 124#endif /* CONFIG_PM */ 125 126#endif /* RT2X00PCI_H */ 127