1/*
2 *  linux/drivers/mmc/wbsd.h - Winbond W83L51xD SD/MMC driver
3 *
4 *  Copyright (C) 2004-2007 Pierre Ossman, All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
10 */
11
12#define LOCK_CODE		0xAA
13
14#define WBSD_CONF_SWRST		0x02
15#define WBSD_CONF_DEVICE	0x07
16#define WBSD_CONF_ID_HI		0x20
17#define WBSD_CONF_ID_LO		0x21
18#define WBSD_CONF_POWER		0x22
19#define WBSD_CONF_PME		0x23
20#define WBSD_CONF_PMES		0x24
21
22#define WBSD_CONF_ENABLE	0x30
23#define WBSD_CONF_PORT_HI	0x60
24#define WBSD_CONF_PORT_LO	0x61
25#define WBSD_CONF_IRQ		0x70
26#define WBSD_CONF_DRQ		0x74
27
28#define WBSD_CONF_PINS		0xF0
29
30#define DEVICE_SD		0x03
31
32#define WBSD_PINS_DAT3_HI	0x20
33#define WBSD_PINS_DAT3_OUT	0x10
34#define WBSD_PINS_GP11_HI	0x04
35#define WBSD_PINS_DETECT_GP11	0x02
36#define WBSD_PINS_DETECT_DAT3	0x01
37
38#define WBSD_CMDR		0x00
39#define WBSD_DFR		0x01
40#define WBSD_EIR		0x02
41#define WBSD_ISR		0x03
42#define WBSD_FSR		0x04
43#define WBSD_IDXR		0x05
44#define WBSD_DATAR		0x06
45#define WBSD_CSR		0x07
46
47#define WBSD_EINT_CARD		0x40
48#define WBSD_EINT_FIFO_THRE	0x20
49#define WBSD_EINT_CRC		0x10
50#define WBSD_EINT_TIMEOUT	0x08
51#define WBSD_EINT_PROGEND	0x04
52#define WBSD_EINT_BUSYEND	0x02
53#define WBSD_EINT_TC		0x01
54
55#define WBSD_INT_PENDING	0x80
56#define WBSD_INT_CARD		0x40
57#define WBSD_INT_FIFO_THRE	0x20
58#define WBSD_INT_CRC		0x10
59#define WBSD_INT_TIMEOUT	0x08
60#define WBSD_INT_PROGEND	0x04
61#define WBSD_INT_BUSYEND	0x02
62#define WBSD_INT_TC		0x01
63
64#define WBSD_FIFO_EMPTY		0x80
65#define WBSD_FIFO_FULL		0x40
66#define WBSD_FIFO_EMTHRE	0x20
67#define WBSD_FIFO_FUTHRE	0x10
68#define WBSD_FIFO_SZMASK	0x0F
69
70#define WBSD_MSLED		0x20
71#define WBSD_POWER_N		0x10
72#define WBSD_WRPT		0x04
73#define WBSD_CARDPRESENT	0x01
74
75#define WBSD_IDX_CLK		0x01
76#define WBSD_IDX_PBSMSB		0x02
77#define WBSD_IDX_TAAC		0x03
78#define WBSD_IDX_NSAC		0x04
79#define WBSD_IDX_PBSLSB		0x05
80#define WBSD_IDX_SETUP		0x06
81#define WBSD_IDX_DMA		0x07
82#define WBSD_IDX_FIFOEN		0x08
83#define WBSD_IDX_STATUS		0x10
84#define WBSD_IDX_RSPLEN		0x1E
85#define WBSD_IDX_RESP0		0x1F
86#define WBSD_IDX_RESP1		0x20
87#define WBSD_IDX_RESP2		0x21
88#define WBSD_IDX_RESP3		0x22
89#define WBSD_IDX_RESP4		0x23
90#define WBSD_IDX_RESP5		0x24
91#define WBSD_IDX_RESP6		0x25
92#define WBSD_IDX_RESP7		0x26
93#define WBSD_IDX_RESP8		0x27
94#define WBSD_IDX_RESP9		0x28
95#define WBSD_IDX_RESP10		0x29
96#define WBSD_IDX_RESP11		0x2A
97#define WBSD_IDX_RESP12		0x2B
98#define WBSD_IDX_RESP13		0x2C
99#define WBSD_IDX_RESP14		0x2D
100#define WBSD_IDX_RESP15		0x2E
101#define WBSD_IDX_RESP16		0x2F
102#define WBSD_IDX_CRCSTATUS	0x30
103#define WBSD_IDX_ISR		0x3F
104
105#define WBSD_CLK_375K		0x00
106#define WBSD_CLK_12M		0x01
107#define WBSD_CLK_16M		0x02
108#define WBSD_CLK_24M		0x03
109
110#define WBSD_DATA_WIDTH		0x01
111
112#define WBSD_DAT3_H		0x08
113#define WBSD_FIFO_RESET		0x04
114#define WBSD_SOFT_RESET		0x02
115#define WBSD_INC_INDEX		0x01
116
117#define WBSD_DMA_SINGLE		0x02
118#define WBSD_DMA_ENABLE		0x01
119
120#define WBSD_FIFOEN_EMPTY	0x20
121#define WBSD_FIFOEN_FULL	0x10
122#define WBSD_FIFO_THREMASK	0x0F
123
124#define WBSD_BLOCK_READ		0x80
125#define WBSD_BLOCK_WRITE	0x40
126#define WBSD_BUSY		0x20
127#define WBSD_CARDTRAFFIC	0x04
128#define WBSD_SENDCMD		0x02
129#define WBSD_RECVRES		0x01
130
131#define WBSD_RSP_SHORT		0x00
132#define WBSD_RSP_LONG		0x01
133
134#define WBSD_CRC_MASK		0x1F
135#define WBSD_CRC_OK		0x05 /* S010E (00101) */
136#define WBSD_CRC_FAIL		0x0B /* S101E (01011) */
137
138#define WBSD_DMA_SIZE		65536
139
140struct wbsd_host
141{
142	struct mmc_host*	mmc;		/* MMC structure */
143
144	spinlock_t		lock;		/* Mutex */
145
146	int			flags;		/* Driver states */
147
148#define WBSD_FCARD_PRESENT	(1<<0)		/* Card is present */
149#define WBSD_FIGNORE_DETECT	(1<<1)		/* Ignore card detection */
150
151	struct mmc_request*	mrq;		/* Current request */
152
153	u8			isr;		/* Accumulated ISR */
154
155	struct scatterlist*	cur_sg;		/* Current SG entry */
156	unsigned int		num_sg;		/* Number of entries left */
157
158	unsigned int		offset;		/* Offset into current entry */
159	unsigned int		remain;		/* Data left in curren entry */
160
161	char*			dma_buffer;	/* ISA DMA buffer */
162	dma_addr_t		dma_addr;	/* Physical address for same */
163
164	int			firsterr;	/* See fifo functions */
165
166	u8			clk;		/* Current clock speed */
167	unsigned char		bus_width;	/* Current bus width */
168
169	int			config;		/* Config port */
170	u8			unlock_code;	/* Code to unlock config */
171
172	int			chip_id;	/* ID of controller */
173
174	int			base;		/* I/O port base */
175	int			irq;		/* Interrupt */
176	int			dma;		/* DMA channel */
177
178	struct tasklet_struct	card_tasklet;	/* Tasklet structures */
179	struct tasklet_struct	fifo_tasklet;
180	struct tasklet_struct	crc_tasklet;
181	struct tasklet_struct	timeout_tasklet;
182	struct tasklet_struct	finish_tasklet;
183
184	struct timer_list	ignore_timer;	/* Ignore detection timer */
185};
186