Commit | Line | Data |
---|---|---|
95ea3627 | 1 | /* |
811aa9ca | 2 | Copyright (C) 2004 - 2008 rt2x00 SourceForge Project |
95ea3627 ID |
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 | ||
31 | /* | |
32 | * This variable should be used with the | |
33 | * pci_driver structure initialization. | |
34 | */ | |
35 | #define PCI_DEVICE_DATA(__ops) .driver_data = (kernel_ulong_t)(__ops) | |
36 | ||
37 | /* | |
38 | * Register defines. | |
39 | * Some registers require multiple attempts before success, | |
40 | * in those cases REGISTER_BUSY_COUNT attempts should be | |
41 | * taken with a REGISTER_BUSY_DELAY interval. | |
42 | */ | |
43 | #define REGISTER_BUSY_COUNT 5 | |
44 | #define REGISTER_BUSY_DELAY 100 | |
45 | ||
95ea3627 ID |
46 | /* |
47 | * Register access. | |
48 | */ | |
0e14f6d3 | 49 | static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev, |
743b97ca | 50 | const unsigned int offset, |
95ea3627 ID |
51 | u32 *value) |
52 | { | |
21795094 | 53 | *value = readl(rt2x00dev->csr.base + offset); |
95ea3627 ID |
54 | } |
55 | ||
56 | static inline void | |
0e14f6d3 | 57 | rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev, |
743b97ca | 58 | const unsigned int offset, |
95ea3627 ID |
59 | void *value, const u16 length) |
60 | { | |
21795094 | 61 | memcpy_fromio(value, rt2x00dev->csr.base + offset, length); |
95ea3627 ID |
62 | } |
63 | ||
0e14f6d3 | 64 | static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, |
743b97ca | 65 | const unsigned int offset, |
95ea3627 ID |
66 | u32 value) |
67 | { | |
21795094 | 68 | writel(value, rt2x00dev->csr.base + offset); |
95ea3627 ID |
69 | } |
70 | ||
71 | static inline void | |
0e14f6d3 | 72 | rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, |
743b97ca | 73 | const unsigned int offset, |
f160ebcb | 74 | const void *value, const u16 length) |
95ea3627 | 75 | { |
21795094 | 76 | memcpy_toio(rt2x00dev->csr.base + offset, value, length); |
95ea3627 ID |
77 | } |
78 | ||
c9c3b1a5 ID |
79 | /** |
80 | * rt2x00pci_regbusy_read - Read from register with busy check | |
81 | * @rt2x00dev: Device pointer, see &struct rt2x00_dev. | |
82 | * @offset: Register offset | |
83 | * @field: Field to check if register is busy | |
84 | * @reg: Pointer to where register contents should be stored | |
85 | * | |
86 | * This function will read the given register, and checks if the | |
87 | * register is busy. If it is, it will sleep for a couple of | |
88 | * microseconds before reading the register again. If the register | |
89 | * is not read after a certain timeout, this function will return | |
90 | * FALSE. | |
91 | */ | |
92 | int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev, | |
93 | const unsigned int offset, | |
94 | const struct rt2x00_field32 field, | |
95 | u32 *reg); | |
96 | ||
6db3786a ID |
97 | /** |
98 | * rt2x00pci_write_tx_data - Initialize data for TX operation | |
99 | * @entry: The entry where the frame is located | |
100 | * | |
101 | * This function will initialize the DMA and skb descriptor | |
102 | * to prepare the entry for the actual TX operation. | |
95ea3627 | 103 | */ |
6db3786a | 104 | int rt2x00pci_write_tx_data(struct queue_entry *entry); |
95ea3627 | 105 | |
181d6902 | 106 | /** |
b8be63ff | 107 | * struct queue_entry_priv_pci: Per entry PCI specific information |
181d6902 ID |
108 | * |
109 | * @desc: Pointer to device descriptor | |
b8be63ff | 110 | * @desc_dma: DMA pointer to &desc. |
181d6902 | 111 | * @data: Pointer to device's entry memory. |
9a46d44e | 112 | * @data_dma: DMA pointer to &data. |
181d6902 | 113 | */ |
b8be63ff | 114 | struct queue_entry_priv_pci { |
181d6902 | 115 | __le32 *desc; |
30b3a23c | 116 | dma_addr_t desc_dma; |
181d6902 ID |
117 | }; |
118 | ||
119 | /** | |
120 | * rt2x00pci_rxdone - Handle RX done events | |
121 | * @rt2x00dev: Device pointer, see &struct rt2x00_dev. | |
95ea3627 ID |
122 | */ |
123 | void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev); | |
181d6902 | 124 | |
95ea3627 ID |
125 | /* |
126 | * Device initialization handlers. | |
127 | */ | |
128 | int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev); | |
129 | void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev); | |
130 | ||
131 | /* | |
132 | * PCI driver handlers. | |
133 | */ | |
134 | int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); | |
135 | void rt2x00pci_remove(struct pci_dev *pci_dev); | |
136 | #ifdef CONFIG_PM | |
137 | int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state); | |
138 | int rt2x00pci_resume(struct pci_dev *pci_dev); | |
139 | #else | |
140 | #define rt2x00pci_suspend NULL | |
141 | #define rt2x00pci_resume NULL | |
142 | #endif /* CONFIG_PM */ | |
143 | ||
144 | #endif /* RT2X00PCI_H */ |