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
b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev * dev)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 }
b43_bus_bcma_bus_powerup(struct b43_bus_dev * dev,bool dynamic_pctl)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 }
b43_bus_bcma_device_is_enabled(struct b43_bus_dev * dev)39 static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev)
40 {
41 return bcma_core_is_enabled(dev->bdev);
42 }
b43_bus_bcma_device_enable(struct b43_bus_dev * dev,u32 core_specific_flags)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 }
b43_bus_bcma_device_disable(struct b43_bus_dev * dev,u32 core_specific_flags)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 }
b43_bus_bcma_read16(struct b43_bus_dev * dev,u16 offset)53 static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset)
54 {
55 return bcma_read16(dev->bdev, offset);
56 }
b43_bus_bcma_read32(struct b43_bus_dev * dev,u16 offset)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
b43_bus_bcma_write16(struct b43_bus_dev * dev,u16 offset,u16 value)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
b43_bus_bcma_write32(struct b43_bus_dev * dev,u16 offset,u32 value)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
b43_bus_bcma_block_read(struct b43_bus_dev * dev,void * buffer,size_t count,u16 offset,u8 reg_width)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
b43_bus_bcma_block_write(struct b43_bus_dev * dev,const void * buffer,size_t count,u16 offset,u8 reg_width)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
b43_bus_dev_bcma_init(struct bcma_device * core)84 struct 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
b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev * dev)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 }
b43_bus_ssb_bus_powerup(struct b43_bus_dev * dev,bool dynamic_pctl)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 }
b43_bus_ssb_device_is_enabled(struct b43_bus_dev * dev)138 static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev)
139 {
140 return ssb_device_is_enabled(dev->sdev);
141 }
b43_bus_ssb_device_enable(struct b43_bus_dev * dev,u32 core_specific_flags)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 }
b43_bus_ssb_device_disable(struct b43_bus_dev * dev,u32 core_specific_flags)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
b43_bus_ssb_read16(struct b43_bus_dev * dev,u16 offset)153 static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
154 {
155 return ssb_read16(dev->sdev, offset);
156 }
b43_bus_ssb_read32(struct b43_bus_dev * dev,u16 offset)157 static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
158 {
159 return ssb_read32(dev->sdev, offset);
160 }
b43_bus_ssb_write16(struct b43_bus_dev * dev,u16 offset,u16 value)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 }
b43_bus_ssb_write32(struct b43_bus_dev * dev,u16 offset,u32 value)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 }
b43_bus_ssb_block_read(struct b43_bus_dev * dev,void * buffer,size_t count,u16 offset,u8 reg_width)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
b43_bus_ssb_block_write(struct b43_bus_dev * dev,const void * buffer,size_t count,u16 offset,u8 reg_width)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
b43_bus_dev_ssb_init(struct ssb_device * sdev)181 struct 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
b43_bus_get_wldev(struct b43_bus_dev * dev)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
b43_bus_set_wldev(struct b43_bus_dev * dev,void * wldev)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 }
256