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bus.c
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1 /*
2 
3  Broadcom B43 wireless driver
4  Bus abstraction layer
5 
6  Copyright (c) 2011 Rafał Miłecki <[email protected]>
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
30 static int b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev *dev)
31 {
32  return 0; /* bcma_bus_may_powerdown(dev->bdev->bus); */
33 }
34 static 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 }
39 static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev)
40 {
41  return bcma_core_is_enabled(dev->bdev);
42 }
43 static 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 }
48 static 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 }
53 static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset)
54 {
55  return bcma_read16(dev->bdev, offset);
56 }
57 static u32 b43_bus_bcma_read32(struct b43_bus_dev *dev, u16 offset)
58 {
59  return bcma_read32(dev->bdev, offset);
60 }
61 static
62 void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
63 {
64  bcma_write16(dev->bdev, offset, value);
65 }
66 static
67 void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
68 {
69  bcma_write32(dev->bdev, offset, value);
70 }
71 static
72 void 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 }
77 static
78 void 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 
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
129 static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev)
130 {
131  return ssb_bus_may_powerdown(dev->sdev->bus);
132 }
133 static 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 }
138 static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev)
139 {
140  return ssb_device_is_enabled(dev->sdev);
141 }
142 static 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 }
147 static 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 
153 static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
154 {
155  return ssb_read16(dev->sdev, offset);
156 }
157 static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
158 {
159  return ssb_read32(dev->sdev, offset);
160 }
161 static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
162 {
163  ssb_write16(dev->sdev, offset, value);
164 }
165 static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
166 {
167  ssb_write32(dev->sdev, offset, value);
168 }
169 static 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 }
174 static
175 void 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 
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 
226 void *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 
241 void 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 }