2 * linux/drivers/mmc/sdhci.h - Secure Digital Host Controller Interface driver
4 * Copyright (C) 2005 Pierre Ossman, All Rights Reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
15 #define PCI_SDHCI_IFPIO 0x00
16 #define PCI_SDHCI_IFDMA 0x01
17 #define PCI_SDHCI_IFVENDOR 0x02
19 #define PCI_SLOT_INFO 0x40 /* 8 bits */
20 #define PCI_SLOT_INFO_SLOTS(x) ((x >> 4) & 7)
21 #define PCI_SLOT_INFO_FIRST_BAR_MASK 0x07
24 * Controller registers
27 #define SDHCI_DMA_ADDRESS 0x00
29 #define SDHCI_BLOCK_SIZE 0x04
30 #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
32 #define SDHCI_BLOCK_COUNT 0x06
34 #define SDHCI_ARGUMENT 0x08
36 #define SDHCI_TRANSFER_MODE 0x0C
37 #define SDHCI_TRNS_DMA 0x01
38 #define SDHCI_TRNS_BLK_CNT_EN 0x02
39 #define SDHCI_TRNS_ACMD12 0x04
40 #define SDHCI_TRNS_READ 0x10
41 #define SDHCI_TRNS_MULTI 0x20
43 #define SDHCI_COMMAND 0x0E
44 #define SDHCI_CMD_RESP_MASK 0x03
45 #define SDHCI_CMD_CRC 0x08
46 #define SDHCI_CMD_INDEX 0x10
47 #define SDHCI_CMD_DATA 0x20
49 #define SDHCI_CMD_RESP_NONE 0x00
50 #define SDHCI_CMD_RESP_LONG 0x01
51 #define SDHCI_CMD_RESP_SHORT 0x02
52 #define SDHCI_CMD_RESP_SHORT_BUSY 0x03
54 #define SDHCI_MAKE_CMD(c, f) (((c & 0xff) << 8) | (f & 0xff))
56 #define SDHCI_RESPONSE 0x10
58 #define SDHCI_BUFFER 0x20
60 #define SDHCI_PRESENT_STATE 0x24
61 #define SDHCI_CMD_INHIBIT 0x00000001
62 #define SDHCI_DATA_INHIBIT 0x00000002
63 #define SDHCI_DOING_WRITE 0x00000100
64 #define SDHCI_DOING_READ 0x00000200
65 #define SDHCI_SPACE_AVAILABLE 0x00000400
66 #define SDHCI_DATA_AVAILABLE 0x00000800
67 #define SDHCI_CARD_PRESENT 0x00010000
68 #define SDHCI_WRITE_PROTECT 0x00080000
70 #define SDHCI_HOST_CONTROL 0x28
71 #define SDHCI_CTRL_LED 0x01
72 #define SDHCI_CTRL_4BITBUS 0x02
74 #define SDHCI_POWER_CONTROL 0x29
75 #define SDHCI_POWER_ON 0x01
76 #define SDHCI_POWER_180 0x0A
77 #define SDHCI_POWER_300 0x0C
78 #define SDHCI_POWER_330 0x0E
80 #define SDHCI_BLOCK_GAP_CONTROL 0x2A
82 #define SDHCI_WALK_UP_CONTROL 0x2B
84 #define SDHCI_CLOCK_CONTROL 0x2C
85 #define SDHCI_DIVIDER_SHIFT 8
86 #define SDHCI_CLOCK_CARD_EN 0x0004
87 #define SDHCI_CLOCK_INT_STABLE 0x0002
88 #define SDHCI_CLOCK_INT_EN 0x0001
90 #define SDHCI_TIMEOUT_CONTROL 0x2E
92 #define SDHCI_SOFTWARE_RESET 0x2F
93 #define SDHCI_RESET_ALL 0x01
94 #define SDHCI_RESET_CMD 0x02
95 #define SDHCI_RESET_DATA 0x04
97 #define SDHCI_INT_STATUS 0x30
98 #define SDHCI_INT_ENABLE 0x34
99 #define SDHCI_SIGNAL_ENABLE 0x38
100 #define SDHCI_INT_RESPONSE 0x00000001
101 #define SDHCI_INT_DATA_END 0x00000002
102 #define SDHCI_INT_DMA_END 0x00000008
103 #define SDHCI_INT_SPACE_AVAIL 0x00000010
104 #define SDHCI_INT_DATA_AVAIL 0x00000020
105 #define SDHCI_INT_CARD_INSERT 0x00000040
106 #define SDHCI_INT_CARD_REMOVE 0x00000080
107 #define SDHCI_INT_CARD_INT 0x00000100
108 #define SDHCI_INT_TIMEOUT 0x00010000
109 #define SDHCI_INT_CRC 0x00020000
110 #define SDHCI_INT_END_BIT 0x00040000
111 #define SDHCI_INT_INDEX 0x00080000
112 #define SDHCI_INT_DATA_TIMEOUT 0x00100000
113 #define SDHCI_INT_DATA_CRC 0x00200000
114 #define SDHCI_INT_DATA_END_BIT 0x00400000
115 #define SDHCI_INT_BUS_POWER 0x00800000
116 #define SDHCI_INT_ACMD12ERR 0x01000000
118 #define SDHCI_INT_NORMAL_MASK 0x00007FFF
119 #define SDHCI_INT_ERROR_MASK 0xFFFF8000
121 #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \
122 SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
123 #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
124 SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
125 SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
126 SDHCI_INT_DATA_END_BIT)
128 #define SDHCI_ACMD12_ERR 0x3C
132 #define SDHCI_CAPABILITIES 0x40
133 #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F
134 #define SDHCI_TIMEOUT_CLK_SHIFT 0
135 #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080
136 #define SDHCI_CLOCK_BASE_MASK 0x00003F00
137 #define SDHCI_CLOCK_BASE_SHIFT 8
138 #define SDHCI_MAX_BLOCK_MASK 0x00030000
139 #define SDHCI_MAX_BLOCK_SHIFT 16
140 #define SDHCI_CAN_DO_DMA 0x00400000
141 #define SDHCI_CAN_VDD_330 0x01000000
142 #define SDHCI_CAN_VDD_300 0x02000000
143 #define SDHCI_CAN_VDD_180 0x04000000
145 /* 44-47 reserved for more caps */
147 #define SDHCI_MAX_CURRENT 0x48
149 /* 4C-4F reserved for more max current */
153 #define SDHCI_SLOT_INT_STATUS 0xFC
155 #define SDHCI_HOST_VERSION 0xFE
156 #define SDHCI_VENDOR_VER_MASK 0xFF00
157 #define SDHCI_VENDOR_VER_SHIFT 8
158 #define SDHCI_SPEC_VER_MASK 0x00FF
159 #define SDHCI_SPEC_VER_SHIFT 0
164 struct sdhci_chip *chip;
165 struct mmc_host *mmc; /* MMC structure */
167 spinlock_t lock; /* Mutex */
169 int flags; /* Host attributes */
170 #define SDHCI_USE_DMA (1<<0)
172 unsigned int max_clk; /* Max possible freq (MHz) */
173 unsigned int timeout_clk; /* Timeout freq (KHz) */
174 unsigned int max_block; /* Max block size (bytes) */
176 unsigned int clock; /* Current clock (MHz) */
177 unsigned short power; /* Current voltage */
179 struct mmc_request *mrq; /* Current request */
180 struct mmc_command *cmd; /* Current command */
181 struct mmc_data *data; /* Current data request */
183 struct scatterlist *cur_sg; /* We're working on this */
184 char *mapped_sg; /* This is where it's mapped */
185 int num_sg; /* Entries left */
186 int offset; /* Offset into current sg */
187 int remain; /* Bytes left in current */
189 int size; /* Remaining bytes in transfer */
191 char slot_descr[20]; /* Name for reservations */
193 int irq; /* Device IRQ */
194 int bar; /* PCI BAR index */
195 unsigned long addr; /* Bus address */
196 void __iomem * ioaddr; /* Mapped address */
198 struct tasklet_struct card_tasklet; /* Tasklet structures */
199 struct tasklet_struct finish_tasklet;
201 struct timer_list timer; /* Timer for timeouts */
205 struct pci_dev *pdev;
207 unsigned long quirks;
209 int num_slots; /* Slots on controller */
210 struct sdhci_host *hosts[0]; /* Pointers to hosts */