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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * This file is part of wl1271
4 *
5 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
6 * Copyright (C) 2008-2010 Nokia Corporation
7 *
8 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
9 */
10
11#ifndef __IO_H__
12#define __IO_H__
13
14#include <linux/irqreturn.h>
15
16#define HW_ACCESS_MEMORY_MAX_RANGE 0x1FFC0
17
18#define HW_PARTITION_REGISTERS_ADDR 0x1FFC0
19#define HW_PART0_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR)
20#define HW_PART0_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 4)
21#define HW_PART1_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 8)
22#define HW_PART1_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 12)
23#define HW_PART2_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 16)
24#define HW_PART2_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 20)
25#define HW_PART3_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 24)
26#define HW_PART3_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 28)
27
28#define HW_ACCESS_REGISTER_SIZE 4
29
30#define HW_ACCESS_PRAM_MAX_RANGE 0x3c000
31
32struct wl1271;
33
34void wlcore_disable_interrupts(struct wl1271 *wl);
35void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
36void wlcore_enable_interrupts(struct wl1271 *wl);
37void wlcore_synchronize_interrupts(struct wl1271 *wl);
38
39void wl1271_io_reset(struct wl1271 *wl);
40void wl1271_io_init(struct wl1271 *wl);
41int wlcore_translate_addr(struct wl1271 *wl, int addr);
42
43/* Raw target IO, address is not translated */
44static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
45 void *buf, size_t len,
46 bool fixed)
47{
48 int ret;
49
50 if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
51 WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
52 addr != HW_ACCESS_ELP_CTRL_REG)))
53 return -EIO;
54
55 ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
56 if (ret && wl->state != WLCORE_STATE_OFF)
57 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
58
59 return ret;
60}
61
62static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
63 void *buf, size_t len,
64 bool fixed)
65{
66 int ret;
67
68 if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
69 WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
70 addr != HW_ACCESS_ELP_CTRL_REG)))
71 return -EIO;
72
73 ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
74 if (ret && wl->state != WLCORE_STATE_OFF)
75 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
76
77 return ret;
78}
79
80static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
81 void *buf, size_t len,
82 bool fixed)
83{
84 return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
85}
86
87static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
88 void *buf, size_t len,
89 bool fixed)
90{
91 return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
92}
93
94static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
95 u32 *val)
96{
97 int ret;
98
99 ret = wlcore_raw_read(wl, addr, wl->buffer_32,
100 sizeof(*wl->buffer_32), false);
101 if (ret < 0)
102 return ret;
103
104 if (val)
105 *val = le32_to_cpu(*wl->buffer_32);
106
107 return 0;
108}
109
110static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
111 u32 val)
112{
113 *wl->buffer_32 = cpu_to_le32(val);
114 return wlcore_raw_write(wl, addr, wl->buffer_32,
115 sizeof(*wl->buffer_32), false);
116}
117
118static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
119 void *buf, size_t len, bool fixed)
120{
121 int physical;
122
123 physical = wlcore_translate_addr(wl, addr);
124
125 return wlcore_raw_read(wl, physical, buf, len, fixed);
126}
127
128static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
129 void *buf, size_t len, bool fixed)
130{
131 int physical;
132
133 physical = wlcore_translate_addr(wl, addr);
134
135 return wlcore_raw_write(wl, physical, buf, len, fixed);
136}
137
138static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
139 void *buf, size_t len,
140 bool fixed)
141{
142 return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
143}
144
145static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
146 void *buf, size_t len,
147 bool fixed)
148{
149 return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
150}
151
152static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
153 void *buf, size_t len,
154 bool fixed)
155{
156 int physical;
157 int addr;
158
159 /* Convert from FW internal address which is chip arch dependent */
160 addr = wl->ops->convert_hwaddr(wl, hwaddr);
161
162 physical = wlcore_translate_addr(wl, addr);
163
164 return wlcore_raw_read(wl, physical, buf, len, fixed);
165}
166
167static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
168 u32 *val)
169{
170 return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
171}
172
173static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
174 u32 val)
175{
176 return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
177}
178
179static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
180 u32 *val)
181{
182 return wlcore_raw_read32(wl,
183 wlcore_translate_addr(wl, wl->rtable[reg]),
184 val);
185}
186
187static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
188 u32 val)
189{
190 return wlcore_raw_write32(wl,
191 wlcore_translate_addr(wl, wl->rtable[reg]),
192 val);
193}
194
195static inline void wl1271_power_off(struct wl1271 *wl)
196{
197 int ret = 0;
198
199 if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
200 return;
201
202 if (wl->if_ops->power)
203 ret = wl->if_ops->power(wl->dev, false);
204 if (!ret)
205 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
206}
207
208static inline int wl1271_power_on(struct wl1271 *wl)
209{
210 int ret = 0;
211
212 if (wl->if_ops->power)
213 ret = wl->if_ops->power(wl->dev, true);
214 if (ret == 0)
215 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
216
217 return ret;
218}
219
220int wlcore_set_partition(struct wl1271 *wl,
221 const struct wlcore_partition_set *p);
222
223bool wl1271_set_block_size(struct wl1271 *wl);
224
225/* Functions from wl1271_main.c */
226
227int wl1271_tx_dummy_packet(struct wl1271 *wl);
228
229#endif