summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/libertas/if_spi.h
blob: 9745bd407d76bbd9bbde33c3d6ec41c8c399f590 (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
/*
 *	linux/drivers/net/wireless/libertas/if_spi.c
 *
 *	Driver for Marvell SPI WLAN cards.
 *
 *	Copyright 2008 Analog Devices Inc.
 *
 *	Authors:
 *	Andrey Yurovsky <andrey@cozybit.com>
 *	Colin McCabe <colin@cozybit.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 */

#ifndef _LBS_IF_SPI_H_
#define _LBS_IF_SPI_H_

#define IPFIELD_ALIGN_OFFSET 2
#define IF_SPI_CMD_BUF_SIZE 2400

/***************** Firmware *****************/

#define IF_SPI_FW_NAME_MAX 30

#define MAX_MAIN_FW_LOAD_CRC_ERR 10

/* Chunk size when loading the helper firmware */
#define HELPER_FW_LOAD_CHUNK_SZ 64

/* Value to write to indicate end of helper firmware dnld */
#define FIRMWARE_DNLD_OK 0x0000

/* Value to check once the main firmware is downloaded */
#define SUCCESSFUL_FW_DOWNLOAD_MAGIC 0x88888888

/***************** SPI Interface Unit *****************/
/* Masks used in SPI register read/write operations */
#define IF_SPI_READ_OPERATION_MASK 0x0
#define IF_SPI_WRITE_OPERATION_MASK 0x8000

/* SPI register offsets. 4-byte aligned. */
#define IF_SPI_DEVICEID_CTRL_REG 0x00	/* DeviceID controller reg */
#define IF_SPI_IO_READBASE_REG 0x04 	/* Read I/O base reg */
#define IF_SPI_IO_WRITEBASE_REG 0x08	/* Write I/O base reg */
#define IF_SPI_IO_RDWRPORT_REG 0x0C	/* Read/Write I/O port reg */

#define IF_SPI_CMD_READBASE_REG 0x10	/* Read command base reg */
#define IF_SPI_CMD_WRITEBASE_REG 0x14	/* Write command base reg */
#define IF_SPI_CMD_RDWRPORT_REG 0x18	/* Read/Write command port reg */

#define IF_SPI_DATA_READBASE_REG 0x1C	/* Read data base reg */
#define IF_SPI_DATA_WRITEBASE_REG 0x20	/* Write data base reg */
#define IF_SPI_DATA_RDWRPORT_REG 0x24	/* Read/Write data port reg */

#define IF_SPI_SCRATCH_1_REG 0x28	/* Scratch reg 1 */
#define IF_SPI_SCRATCH_2_REG 0x2C	/* Scratch reg 2 */
#define IF_SPI_SCRATCH_3_REG 0x30	/* Scratch reg 3 */
#define IF_SPI_SCRATCH_4_REG 0x34	/* Scratch reg 4 */

#define IF_SPI_TX_FRAME_SEQ_NUM_REG 0x38 /* Tx frame sequence number reg */
#define IF_SPI_TX_FRAME_STATUS_REG 0x3C	/* Tx frame status reg */

#define IF_SPI_HOST_INT_CTRL_REG 0x40	/* Host interrupt controller reg */

#define IF_SPI_CARD_INT_CAUSE_REG 0x44	/* Card interrupt cause reg */
#define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interupt status reg */
#define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */
#define IF_SPI_CARD_INT_STATUS_MASK_REG	0x50 /* Card interrupt status mask */

#define IF_SPI_CARD_INT_RESET_SELECT_REG 0x54 /* Card interrupt reset select */

#define IF_SPI_HOST_INT_CAUSE_REG 0x58	/* Host interrupt cause reg */
#define IF_SPI_HOST_INT_STATUS_REG 0x5C	/* Host interrupt status reg */
#define IF_SPI_HOST_INT_EVENT_MASK_REG 0x60 /* Host interrupt event mask */
#define IF_SPI_HOST_INT_STATUS_MASK_REG	0x64 /* Host interrupt status mask */
#define IF_SPI_HOST_INT_RESET_SELECT_REG 0x68 /* Host interrupt reset select */

#define IF_SPI_DELAY_READ_REG 0x6C	/* Delay read reg */
#define IF_SPI_SPU_BUS_MODE_REG 0x70	/* SPU BUS mode reg */

/***************** IF_SPI_DEVICEID_CTRL_REG *****************/
#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dc) ((dc & 0xffff0000)>>16)
#define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dc) (dc & 0x000000ff)

/***************** IF_SPI_HOST_INT_CTRL_REG *****************/
/* Host Interrupt Control bit : Wake up */
#define IF_SPI_HICT_WAKE_UP				(1<<0)
/* Host Interrupt Control bit : WLAN ready */
#define IF_SPI_HICT_WLAN_READY				(1<<1)
/*#define IF_SPI_HICT_FIFO_FIRST_HALF_EMPTY		(1<<2) */
/*#define IF_SPI_HICT_FIFO_SECOND_HALF_EMPTY		(1<<3) */
/*#define IF_SPI_HICT_IRQSRC_WLAN			(1<<4) */
/* Host Interrupt Control bit : Tx auto download */
#define IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO		(1<<5)
/* Host Interrupt Control bit : Rx auto upload */
#define IF_SPI_HICT_RX_UPLOAD_OVER_AUTO			(1<<6)
/* Host Interrupt Control bit : Command auto download */
#define IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO		(1<<7)
/* Host Interrupt Control bit : Command auto upload */
#define IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO		(1<<8)

/***************** IF_SPI_CARD_INT_CAUSE_REG *****************/
/* Card Interrupt Case bit : Tx download over */
#define IF_SPI_CIC_TX_DOWNLOAD_OVER			(1<<0)
/* Card Interrupt Case bit : Rx upload over */
#define IF_SPI_CIC_RX_UPLOAD_OVER			(1<<1)
/* Card Interrupt Case bit : Command download over */
#define IF_SPI_CIC_CMD_DOWNLOAD_OVER			(1<<2)
/* Card Interrupt Case bit : Host event */
#define IF_SPI_CIC_HOST_EVENT				(1<<3)
/* Card Interrupt Case bit : Command upload over */
#define IF_SPI_CIC_CMD_UPLOAD_OVER			(1<<4)
/* Card Interrupt Case bit : Power down */
#define IF_SPI_CIC_POWER_DOWN				(1<<5)

/***************** IF_SPI_CARD_INT_STATUS_REG *****************/
#define IF_SPI_CIS_TX_DOWNLOAD_OVER			(1<<0)
#define IF_SPI_CIS_RX_UPLOAD_OVER			(1<<1)
#define IF_SPI_CIS_CMD_DOWNLOAD_OVER			(1<<2)
#define IF_SPI_CIS_HOST_EVENT				(1<<3)
#define IF_SPI_CIS_CMD_UPLOAD_OVER			(1<<4)
#define IF_SPI_CIS_POWER_DOWN				(1<<5)

/***************** IF_SPI_HOST_INT_CAUSE_REG *****************/
#define IF_SPI_HICU_TX_DOWNLOAD_RDY			(1<<0)
#define IF_SPI_HICU_RX_UPLOAD_RDY			(1<<1)
#define IF_SPI_HICU_CMD_DOWNLOAD_RDY			(1<<2)
#define IF_SPI_HICU_CARD_EVENT				(1<<3)
#define IF_SPI_HICU_CMD_UPLOAD_RDY			(1<<4)
#define IF_SPI_HICU_IO_WR_FIFO_OVERFLOW			(1<<5)
#define IF_SPI_HICU_IO_RD_FIFO_UNDERFLOW		(1<<6)
#define IF_SPI_HICU_DATA_WR_FIFO_OVERFLOW		(1<<7)
#define IF_SPI_HICU_DATA_RD_FIFO_UNDERFLOW		(1<<8)
#define IF_SPI_HICU_CMD_WR_FIFO_OVERFLOW		(1<<9)
#define IF_SPI_HICU_CMD_RD_FIFO_UNDERFLOW		(1<<10)

/***************** IF_SPI_HOST_INT_STATUS_REG *****************/
/* Host Interrupt Status bit : Tx download ready */
#define IF_SPI_HIST_TX_DOWNLOAD_RDY			(1<<0)
/* Host Interrupt Status bit : Rx upload ready */
#define IF_SPI_HIST_RX_UPLOAD_RDY			(1<<1)
/* Host Interrupt Status bit : Command download ready */
#define IF_SPI_HIST_CMD_DOWNLOAD_RDY			(1<<2)
/* Host Interrupt Status bit : Card event */
#define IF_SPI_HIST_CARD_EVENT				(1<<3)
/* Host Interrupt Status bit : Command upload ready */
#define IF_SPI_HIST_CMD_UPLOAD_RDY			(1<<4)
/* Host Interrupt Status bit : I/O write FIFO overflow */
#define IF_SPI_HIST_IO_WR_FIFO_OVERFLOW			(1<<5)
/* Host Interrupt Status bit : I/O read FIFO underflow */
#define IF_SPI_HIST_IO_RD_FIFO_UNDRFLOW			(1<<6)
/* Host Interrupt Status bit : Data write FIFO overflow */
#define IF_SPI_HIST_DATA_WR_FIFO_OVERFLOW		(1<<7)
/* Host Interrupt Status bit : Data read FIFO underflow */
#define IF_SPI_HIST_DATA_RD_FIFO_UNDERFLOW		(1<<8)
/* Host Interrupt Status bit : Command write FIFO overflow */
#define IF_SPI_HIST_CMD_WR_FIFO_OVERFLOW		(1<<9)
/* Host Interrupt Status bit : Command read FIFO underflow */
#define IF_SPI_HIST_CMD_RD_FIFO_UNDERFLOW		(1<<10)

/***************** IF_SPI_HOST_INT_STATUS_MASK_REG *****************/
/* Host Interrupt Status Mask bit : Tx download ready */
#define IF_SPI_HISM_TX_DOWNLOAD_RDY			(1<<0)
/* Host Interrupt Status Mask bit : Rx upload ready */
#define IF_SPI_HISM_RX_UPLOAD_RDY			(1<<1)
/* Host Interrupt Status Mask bit : Command download ready */
#define IF_SPI_HISM_CMD_DOWNLOAD_RDY			(1<<2)
/* Host Interrupt Status Mask bit : Card event */
#define IF_SPI_HISM_CARDEVENT				(1<<3)
/* Host Interrupt Status Mask bit : Command upload ready */
#define IF_SPI_HISM_CMD_UPLOAD_RDY			(1<<4)
/* Host Interrupt Status Mask bit : I/O write FIFO overflow */
#define IF_SPI_HISM_IO_WR_FIFO_OVERFLOW			(1<<5)
/* Host Interrupt Status Mask bit : I/O read FIFO underflow */
#define IF_SPI_HISM_IO_RD_FIFO_UNDERFLOW		(1<<6)
/* Host Interrupt Status Mask bit : Data write FIFO overflow */
#define IF_SPI_HISM_DATA_WR_FIFO_OVERFLOW		(1<<7)
/* Host Interrupt Status Mask bit : Data write FIFO underflow */
#define IF_SPI_HISM_DATA_RD_FIFO_UNDERFLOW		(1<<8)
/* Host Interrupt Status Mask bit : Command write FIFO overflow */
#define IF_SPI_HISM_CMD_WR_FIFO_OVERFLOW		(1<<9)
/* Host Interrupt Status Mask bit : Command write FIFO underflow */
#define IF_SPI_HISM_CMD_RD_FIFO_UNDERFLOW		(1<<10)

/***************** IF_SPI_SPU_BUS_MODE_REG *****************/
/* SCK edge on which the WLAN module outputs data on MISO */
#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_FALLING 0x8
#define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING 0x0

/* In a SPU read operation, there is a delay between writing the SPU
 * register name and getting back data from the WLAN module.
 * This can be specified in terms of nanoseconds or in terms of dummy
 * clock cycles which the master must output before receiving a response. */
#define IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK 0x4
#define IF_SPI_BUS_MODE_DELAY_METHOD_TIMED 0x0

/* Some different modes of SPI operation */
#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_16_BIT_DATA 0x00
#define IF_SPI_BUS_MODE_8_BIT_ADDRESS_32_BIT_DATA 0x01
#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA 0x02
#define IF_SPI_BUS_MODE_16_BIT_ADDRESS_32_BIT_DATA 0x03

#endif