tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2
3 Broadcom B43 wireless driver
4 Bus abstraction layer
5
6 Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
21 Boston, MA 02110-1301, USA.
22
23*/
24
25#include "b43.h"
26#include "bus.h"
27
28/* BCMA */
29#ifdef CONFIG_B43_BCMA
30static int b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev *dev)
31{
32 return 0; /* bcma_bus_may_powerdown(dev->bdev->bus); */
33}
34static int b43_bus_bcma_bus_powerup(struct b43_bus_dev *dev,
35 bool dynamic_pctl)
36{
37 return 0; /* bcma_bus_powerup(dev->sdev->bus, dynamic_pctl); */
38}
39static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev)
40{
41 return bcma_core_is_enabled(dev->bdev);
42}
43static void b43_bus_bcma_device_enable(struct b43_bus_dev *dev,
44 u32 core_specific_flags)
45{
46 bcma_core_enable(dev->bdev, core_specific_flags);
47}
48static void b43_bus_bcma_device_disable(struct b43_bus_dev *dev,
49 u32 core_specific_flags)
50{
51 bcma_core_disable(dev->bdev, core_specific_flags);
52}
53static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset)
54{
55 return bcma_read16(dev->bdev, offset);
56}
57static u32 b43_bus_bcma_read32(struct b43_bus_dev *dev, u16 offset)
58{
59 return bcma_read32(dev->bdev, offset);
60}
61static
62void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
63{
64 bcma_write16(dev->bdev, offset, value);
65}
66static
67void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
68{
69 bcma_write32(dev->bdev, offset, value);
70}
71static
72void b43_bus_bcma_block_read(struct b43_bus_dev *dev, void *buffer,
73 size_t count, u16 offset, u8 reg_width)
74{
75 bcma_block_read(dev->bdev, buffer, count, offset, reg_width);
76}
77static
78void b43_bus_bcma_block_write(struct b43_bus_dev *dev, const void *buffer,
79 size_t count, u16 offset, u8 reg_width)
80{
81 bcma_block_write(dev->bdev, buffer, count, offset, reg_width);
82}
83
84struct b43_bus_dev *b43_bus_dev_bcma_init(struct bcma_device *core)
85{
86 struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
87 if (!dev)
88 return NULL;
89
90 dev->bus_type = B43_BUS_BCMA;
91 dev->bdev = core;
92
93 dev->bus_may_powerdown = b43_bus_bcma_bus_may_powerdown;
94 dev->bus_powerup = b43_bus_bcma_bus_powerup;
95 dev->device_is_enabled = b43_bus_bcma_device_is_enabled;
96 dev->device_enable = b43_bus_bcma_device_enable;
97 dev->device_disable = b43_bus_bcma_device_disable;
98
99 dev->read16 = b43_bus_bcma_read16;
100 dev->read32 = b43_bus_bcma_read32;
101 dev->write16 = b43_bus_bcma_write16;
102 dev->write32 = b43_bus_bcma_write32;
103 dev->block_read = b43_bus_bcma_block_read;
104 dev->block_write = b43_bus_bcma_block_write;
105
106 dev->dev = &core->dev;
107 dev->dma_dev = core->dma_dev;
108 dev->irq = core->irq;
109
110 dev->board_vendor = core->bus->boardinfo.vendor;
111 dev->board_type = core->bus->boardinfo.type;
112 dev->board_rev = core->bus->sprom.board_rev;
113
114 dev->chip_id = core->bus->chipinfo.id;
115 dev->chip_rev = core->bus->chipinfo.rev;
116 dev->chip_pkg = core->bus->chipinfo.pkg;
117
118 dev->bus_sprom = &core->bus->sprom;
119
120 dev->core_id = core->id.id;
121 dev->core_rev = core->id.rev;
122
123 return dev;
124}
125#endif /* CONFIG_B43_BCMA */
126
127/* SSB */
128#ifdef CONFIG_B43_SSB
129static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev)
130{
131 return ssb_bus_may_powerdown(dev->sdev->bus);
132}
133static int b43_bus_ssb_bus_powerup(struct b43_bus_dev *dev,
134 bool dynamic_pctl)
135{
136 return ssb_bus_powerup(dev->sdev->bus, dynamic_pctl);
137}
138static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev)
139{
140 return ssb_device_is_enabled(dev->sdev);
141}
142static void b43_bus_ssb_device_enable(struct b43_bus_dev *dev,
143 u32 core_specific_flags)
144{
145 ssb_device_enable(dev->sdev, core_specific_flags);
146}
147static void b43_bus_ssb_device_disable(struct b43_bus_dev *dev,
148 u32 core_specific_flags)
149{
150 ssb_device_disable(dev->sdev, core_specific_flags);
151}
152
153static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
154{
155 return ssb_read16(dev->sdev, offset);
156}
157static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
158{
159 return ssb_read32(dev->sdev, offset);
160}
161static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
162{
163 ssb_write16(dev->sdev, offset, value);
164}
165static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
166{
167 ssb_write32(dev->sdev, offset, value);
168}
169static void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer,
170 size_t count, u16 offset, u8 reg_width)
171{
172 ssb_block_read(dev->sdev, buffer, count, offset, reg_width);
173}
174static
175void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer,
176 size_t count, u16 offset, u8 reg_width)
177{
178 ssb_block_write(dev->sdev, buffer, count, offset, reg_width);
179}
180
181struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
182{
183 struct b43_bus_dev *dev;
184
185 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
186 if (!dev)
187 return NULL;
188
189 dev->bus_type = B43_BUS_SSB;
190 dev->sdev = sdev;
191
192 dev->bus_may_powerdown = b43_bus_ssb_bus_may_powerdown;
193 dev->bus_powerup = b43_bus_ssb_bus_powerup;
194 dev->device_is_enabled = b43_bus_ssb_device_is_enabled;
195 dev->device_enable = b43_bus_ssb_device_enable;
196 dev->device_disable = b43_bus_ssb_device_disable;
197
198 dev->read16 = b43_bus_ssb_read16;
199 dev->read32 = b43_bus_ssb_read32;
200 dev->write16 = b43_bus_ssb_write16;
201 dev->write32 = b43_bus_ssb_write32;
202 dev->block_read = b43_bus_ssb_block_read;
203 dev->block_write = b43_bus_ssb_block_write;
204
205 dev->dev = sdev->dev;
206 dev->dma_dev = sdev->dma_dev;
207 dev->irq = sdev->irq;
208
209 dev->board_vendor = sdev->bus->boardinfo.vendor;
210 dev->board_type = sdev->bus->boardinfo.type;
211 dev->board_rev = sdev->bus->sprom.board_rev;
212
213 dev->chip_id = sdev->bus->chip_id;
214 dev->chip_rev = sdev->bus->chip_rev;
215 dev->chip_pkg = sdev->bus->chip_package;
216
217 dev->bus_sprom = &sdev->bus->sprom;
218
219 dev->core_id = sdev->id.coreid;
220 dev->core_rev = sdev->id.revision;
221
222 return dev;
223}
224#endif /* CONFIG_B43_SSB */
225
226void *b43_bus_get_wldev(struct b43_bus_dev *dev)
227{
228 switch (dev->bus_type) {
229#ifdef CONFIG_B43_BCMA
230 case B43_BUS_BCMA:
231 return bcma_get_drvdata(dev->bdev);
232#endif
233#ifdef CONFIG_B43_SSB
234 case B43_BUS_SSB:
235 return ssb_get_drvdata(dev->sdev);
236#endif
237 }
238 return NULL;
239}
240
241void b43_bus_set_wldev(struct b43_bus_dev *dev, void *wldev)
242{
243 switch (dev->bus_type) {
244#ifdef CONFIG_B43_BCMA
245 case B43_BUS_BCMA:
246 bcma_set_drvdata(dev->bdev, wldev);
247 break;
248#endif
249#ifdef CONFIG_B43_SSB
250 case B43_BUS_SSB:
251 ssb_set_drvdata(dev->sdev, wldev);
252 break;
253#endif
254 }
255}