summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath10k/hif.h
blob: 6679dd9cfd12857342abf2ff87f86d835971044e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _HIF_H_
#define _HIF_H_

#include <linux/kernel.h>
#include "core.h"
#include "debug.h"

struct ath10k_hif_sg_item {
	u16 transfer_id;
	void *transfer_context; /* NULL = tx completion callback not called */
	void *vaddr; /* for debugging mostly */
	u32 paddr;
	u16 len;
};

struct ath10k_hif_ops {
	/* send a scatter-gather list to the target */
	int (*tx_sg)(struct ath10k *ar, u8 pipe_id,
		     struct ath10k_hif_sg_item *items, int n_items);

	/* read firmware memory through the diagnose interface */
	int (*diag_read)(struct ath10k *ar, u32 address, void *buf,
			 size_t buf_len);

	int (*diag_write)(struct ath10k *ar, u32 address, const void *data,
			  int nbytes);
	/*
	 * API to handle HIF-specific BMI message exchanges, this API is
	 * synchronous and only allowed to be called from a context that
	 * can block (sleep)
	 */
	int (*exchange_bmi_msg)(struct ath10k *ar,
				void *request, u32 request_len,
				void *response, u32 *response_len);

	/* Post BMI phase, after FW is loaded. Starts regular operation */
	int (*start)(struct ath10k *ar);

	/* Clean up what start() did. This does not revert to BMI phase. If
	 * desired so, call power_down() and power_up()
	 */
	void (*stop)(struct ath10k *ar);

	int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
				   u8 *ul_pipe, u8 *dl_pipe);

	void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);

	/*
	 * Check if prior sends have completed.
	 *
	 * Check whether the pipe in question has any completed
	 * sends that have not yet been processed.
	 * This function is only relevant for HIF pipes that are configured
	 * to be polled rather than interrupt-driven.
	 */
	void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);

	u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);

	u32 (*read32)(struct ath10k *ar, u32 address);

	void (*write32)(struct ath10k *ar, u32 address, u32 value);

	/* Power up the device and enter BMI transfer mode for FW download */
	int (*power_up)(struct ath10k *ar);

	/* Power down the device and free up resources. stop() must be called
	 * before this if start() was called earlier
	 */
	void (*power_down)(struct ath10k *ar);

	int (*suspend)(struct ath10k *ar);
	int (*resume)(struct ath10k *ar);

	/* fetch calibration data from target eeprom */
	int (*fetch_cal_eeprom)(struct ath10k *ar, void **data,
				size_t *data_len);
};

static inline int ath10k_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
				   struct ath10k_hif_sg_item *items,
				   int n_items)
{
	return ar->hif.ops->tx_sg(ar, pipe_id, items, n_items);
}

static inline int ath10k_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
				       size_t buf_len)
{
	return ar->hif.ops->diag_read(ar, address, buf, buf_len);
}

static inline int ath10k_hif_diag_write(struct ath10k *ar, u32 address,
					const void *data, int nbytes)
{
	if (!ar->hif.ops->diag_write)
		return -EOPNOTSUPP;

	return ar->hif.ops->diag_write(ar, address, data, nbytes);
}

static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
					      void *request, u32 request_len,
					      void *response, u32 *response_len)
{
	return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
					     response, response_len);
}

static inline int ath10k_hif_start(struct ath10k *ar)
{
	return ar->hif.ops->start(ar);
}

static inline void ath10k_hif_stop(struct ath10k *ar)
{
	return ar->hif.ops->stop(ar);
}

static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
						 u16 service_id,
						 u8 *ul_pipe, u8 *dl_pipe)
{
	return ar->hif.ops->map_service_to_pipe(ar, service_id,
						ul_pipe, dl_pipe);
}

static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
					       u8 *ul_pipe, u8 *dl_pipe)
{
	ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
}

static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
						  u8 pipe_id, int force)
{
	ar->hif.ops->send_complete_check(ar, pipe_id, force);
}

static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
						   u8 pipe_id)
{
	return ar->hif.ops->get_free_queue_number(ar, pipe_id);
}

static inline int ath10k_hif_power_up(struct ath10k *ar)
{
	return ar->hif.ops->power_up(ar);
}

static inline void ath10k_hif_power_down(struct ath10k *ar)
{
	ar->hif.ops->power_down(ar);
}

static inline int ath10k_hif_suspend(struct ath10k *ar)
{
	if (!ar->hif.ops->suspend)
		return -EOPNOTSUPP;

	return ar->hif.ops->suspend(ar);
}

static inline int ath10k_hif_resume(struct ath10k *ar)
{
	if (!ar->hif.ops->resume)
		return -EOPNOTSUPP;

	return ar->hif.ops->resume(ar);
}

static inline u32 ath10k_hif_read32(struct ath10k *ar, u32 address)
{
	if (!ar->hif.ops->read32) {
		ath10k_warn(ar, "hif read32 not supported\n");
		return 0xdeaddead;
	}

	return ar->hif.ops->read32(ar, address);
}

static inline void ath10k_hif_write32(struct ath10k *ar,
				      u32 address, u32 data)
{
	if (!ar->hif.ops->write32) {
		ath10k_warn(ar, "hif write32 not supported\n");
		return;
	}

	ar->hif.ops->write32(ar, address, data);
}

static inline int ath10k_hif_fetch_cal_eeprom(struct ath10k *ar,
					      void **data,
					      size_t *data_len)
{
	if (!ar->hif.ops->fetch_cal_eeprom)
		return -EOPNOTSUPP;

	return ar->hif.ops->fetch_cal_eeprom(ar, data, data_len);
}

#endif /* _HIF_H_ */
OpenPOWER on IntegriCloud