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diff --git a/drivers/net/wimax/i2400m/i2400m-sdio.h b/drivers/net/wimax/i2400m/i2400m-sdio.h
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1/*
2 * Intel Wireless WiMAX Connection 2400m
3 * SDIO-specific i2400m driver definitions
4 *
5 *
6 * Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 * * Neither the name of Intel Corporation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 *
35 * Intel Corporation <linux-wimax@intel.com>
36 * Brian Bian <brian.bian@intel.com>
37 * Dirk Brandewie <dirk.j.brandewie@intel.com>
38 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
39 * Yanir Lubetkin <yanirx.lubetkin@intel.com>
40 * - Initial implementation
41 *
42 *
43 * This driver implements the bus-specific part of the i2400m for
44 * SDIO. Check i2400m.h for a generic driver description.
45 *
46 * ARCHITECTURE
47 *
48 * This driver sits under the bus-generic i2400m driver, providing the
49 * connection to the device.
50 *
51 * When probed, all the function pointers are setup and then the
52 * bus-generic code called. The generic driver will then use the
53 * provided pointers for uploading firmware (i2400ms_bus_bm*() in
54 * sdio-fw.c) and then setting up the device (i2400ms_dev_*() in
55 * sdio.c).
56 *
57 * Once firmware is uploaded, TX functions (sdio-tx.c) are called when
58 * data is ready for transmission in the TX fifo; then the SDIO IRQ is
59 * fired and data is available (sdio-rx.c), it is sent to the generic
60 * driver for processing with i2400m_rx.
61 */
62
63#ifndef __I2400M_SDIO_H__
64#define __I2400M_SDIO_H__
65
66#include "i2400m.h"
67
68/* Host-Device interface for SDIO */
69enum {
70 I2400M_SDIO_BOOT_RETRIES = 3,
71 I2400MS_BLK_SIZE = 256,
72 I2400MS_PL_SIZE_MAX = 0x3E00,
73
74 I2400MS_DATA_ADDR = 0x0,
75 I2400MS_INTR_STATUS_ADDR = 0x13,
76 I2400MS_INTR_CLEAR_ADDR = 0x13,
77 I2400MS_INTR_ENABLE_ADDR = 0x14,
78 I2400MS_INTR_GET_SIZE_ADDR = 0x2C,
79 /* The number of ticks to wait for the device to signal that
80 * it is ready */
81 I2400MS_INIT_SLEEP_INTERVAL = 100,
82 /* How long to wait for the device to settle after reset */
83 I2400MS_SETTLE_TIME = 40,
84 /* The number of msec to wait for IOR after sending IOE */
85 IWMC3200_IOR_TIMEOUT = 10,
86};
87
88
89/**
90 * struct i2400ms - descriptor for a SDIO connected i2400m
91 *
92 * @i2400m: bus-generic i2400m implementation; has to be first (see
93 * it's documentation in i2400m.h).
94 *
95 * @func: pointer to our SDIO function
96 *
97 * @tx_worker: workqueue struct used to TX data when the bus-generic
98 * code signals packets are pending for transmission to the device.
99 *
100 * @tx_workqueue: workqeueue used for data TX; we don't use the
101 * system's workqueue as that might cause deadlocks with code in
102 * the bus-generic driver. The read/write operation to the queue
103 * is protected with spinlock (tx_lock in struct i2400m) to avoid
104 * the queue being destroyed in the middle of a the queue read/write
105 * operation.
106 *
107 * @debugfs_dentry: dentry for the SDIO specific debugfs files
108 *
109 * Note this value is set to NULL upon destruction; this is
110 * because some routinges use it to determine if we are inside the
111 * probe() path or some other path. When debugfs is disabled,
112 * creation sets the dentry to '(void*) -ENODEV', which is valid
113 * for the test.
114 */
115struct i2400ms {
116 struct i2400m i2400m; /* FIRST! See doc */
117 struct sdio_func *func;
118
119 struct work_struct tx_worker;
120 struct workqueue_struct *tx_workqueue;
121 char tx_wq_name[32];
122
123 struct dentry *debugfs_dentry;
124
125 wait_queue_head_t bm_wfa_wq;
126 int bm_wait_result;
127 size_t bm_ack_size;
128
129 /* Device is any of the iwmc3200 SKUs */
130 unsigned iwmc3200:1;
131};
132
133
134static inline
135void i2400ms_init(struct i2400ms *i2400ms)
136{
137 i2400m_init(&i2400ms->i2400m);
138}
139
140
141extern int i2400ms_rx_setup(struct i2400ms *);
142extern void i2400ms_rx_release(struct i2400ms *);
143
144extern int i2400ms_tx_setup(struct i2400ms *);
145extern void i2400ms_tx_release(struct i2400ms *);
146extern void i2400ms_bus_tx_kick(struct i2400m *);
147
148extern ssize_t i2400ms_bus_bm_cmd_send(struct i2400m *,
149 const struct i2400m_bootrom_header *,
150 size_t, int);
151extern ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *,
152 struct i2400m_bootrom_header *,
153 size_t);
154extern void i2400ms_bus_bm_release(struct i2400m *);
155extern int i2400ms_bus_bm_setup(struct i2400m *);
156
157#endif /* #ifndef __I2400M_SDIO_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-20 16:35:00 -0400