tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
5 * Copyright (C) 2008-2010 Nokia Corporation
6 *
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * 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; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#ifndef __IO_H__
26#define __IO_H__
27
28#include <linux/irqreturn.h>
29
30#define HW_ACCESS_MEMORY_MAX_RANGE 0x1FFC0
31
32#define HW_PARTITION_REGISTERS_ADDR 0x1FFC0
33#define HW_PART0_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR)
34#define HW_PART0_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 4)
35#define HW_PART1_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 8)
36#define HW_PART1_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 12)
37#define HW_PART2_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 16)
38#define HW_PART2_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 20)
39#define HW_PART3_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 24)
40
41#define HW_ACCESS_REGISTER_SIZE 4
42
43#define HW_ACCESS_PRAM_MAX_RANGE 0x3c000
44
45struct wl1271;
46
47void wlcore_disable_interrupts(struct wl1271 *wl);
48void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
49void wlcore_enable_interrupts(struct wl1271 *wl);
50void wlcore_synchronize_interrupts(struct wl1271 *wl);
51
52void wl1271_io_reset(struct wl1271 *wl);
53void wl1271_io_init(struct wl1271 *wl);
54int wlcore_translate_addr(struct wl1271 *wl, int addr);
55
56/* Raw target IO, address is not translated */
57static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
58 void *buf, size_t len,
59 bool fixed)
60{
61 int ret;
62
63 if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
64 WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
65 addr != HW_ACCESS_ELP_CTRL_REG)))
66 return -EIO;
67
68 ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
69 if (ret && wl->state != WLCORE_STATE_OFF)
70 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
71
72 return ret;
73}
74
75static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
76 void *buf, size_t len,
77 bool fixed)
78{
79 int ret;
80
81 if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
82 WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
83 addr != HW_ACCESS_ELP_CTRL_REG)))
84 return -EIO;
85
86 ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
87 if (ret && wl->state != WLCORE_STATE_OFF)
88 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
89
90 return ret;
91}
92
93static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
94 void *buf, size_t len,
95 bool fixed)
96{
97 return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
98}
99
100static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
101 void *buf, size_t len,
102 bool fixed)
103{
104 return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
105}
106
107static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
108 u32 *val)
109{
110 int ret;
111
112 ret = wlcore_raw_read(wl, addr, wl->buffer_32,
113 sizeof(*wl->buffer_32), false);
114 if (ret < 0)
115 return ret;
116
117 if (val)
118 *val = le32_to_cpu(*wl->buffer_32);
119
120 return 0;
121}
122
123static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
124 u32 val)
125{
126 *wl->buffer_32 = cpu_to_le32(val);
127 return wlcore_raw_write(wl, addr, wl->buffer_32,
128 sizeof(*wl->buffer_32), false);
129}
130
131static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
132 void *buf, size_t len, bool fixed)
133{
134 int physical;
135
136 physical = wlcore_translate_addr(wl, addr);
137
138 return wlcore_raw_read(wl, physical, buf, len, fixed);
139}
140
141static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
142 void *buf, size_t len, bool fixed)
143{
144 int physical;
145
146 physical = wlcore_translate_addr(wl, addr);
147
148 return wlcore_raw_write(wl, physical, buf, len, fixed);
149}
150
151static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
152 void *buf, size_t len,
153 bool fixed)
154{
155 return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
156}
157
158static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
159 void *buf, size_t len,
160 bool fixed)
161{
162 return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
163}
164
165static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
166 void *buf, size_t len,
167 bool fixed)
168{
169 int physical;
170 int addr;
171
172 /* Convert from FW internal address which is chip arch dependent */
173 addr = wl->ops->convert_hwaddr(wl, hwaddr);
174
175 physical = wlcore_translate_addr(wl, addr);
176
177 return wlcore_raw_read(wl, physical, buf, len, fixed);
178}
179
180static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
181 u32 *val)
182{
183 return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
184}
185
186static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
187 u32 val)
188{
189 return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
190}
191
192static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
193 u32 *val)
194{
195 return wlcore_raw_read32(wl,
196 wlcore_translate_addr(wl, wl->rtable[reg]),
197 val);
198}
199
200static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
201 u32 val)
202{
203 return wlcore_raw_write32(wl,
204 wlcore_translate_addr(wl, wl->rtable[reg]),
205 val);
206}
207
208static inline void wl1271_power_off(struct wl1271 *wl)
209{
210 int ret;
211
212 if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
213 return;
214
215 ret = wl->if_ops->power(wl->dev, false);
216 if (!ret)
217 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
218}
219
220static inline int wl1271_power_on(struct wl1271 *wl)
221{
222 int ret = wl->if_ops->power(wl->dev, true);
223 if (ret == 0)
224 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
225
226 return ret;
227}
228
229int wlcore_set_partition(struct wl1271 *wl,
230 const struct wlcore_partition_set *p);
231
232bool wl1271_set_block_size(struct wl1271 *wl);
233
234/* Functions from wl1271_main.c */
235
236int wl1271_tx_dummy_packet(struct wl1271 *wl);
237
238#endif