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d129bceb PO |
1 | /* |
2 | * linux/drivers/mmc/sdhci.h - Secure Digital Host Controller Interface driver | |
3 | * | |
4 | * Copyright (C) 2005 Pierre Ossman, All Rights Reserved. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
643f720c PO |
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. | |
d129bceb PO |
10 | */ |
11 | ||
12 | /* | |
13 | * PCI registers | |
14 | */ | |
15 | ||
67435274 PO |
16 | #define PCI_SDHCI_IFPIO 0x00 |
17 | #define PCI_SDHCI_IFDMA 0x01 | |
18 | #define PCI_SDHCI_IFVENDOR 0x02 | |
19 | ||
d129bceb PO |
20 | #define PCI_SLOT_INFO 0x40 /* 8 bits */ |
21 | #define PCI_SLOT_INFO_SLOTS(x) ((x >> 4) & 7) | |
22 | #define PCI_SLOT_INFO_FIRST_BAR_MASK 0x07 | |
23 | ||
24 | /* | |
25 | * Controller registers | |
26 | */ | |
27 | ||
28 | #define SDHCI_DMA_ADDRESS 0x00 | |
29 | ||
30 | #define SDHCI_BLOCK_SIZE 0x04 | |
bab76961 | 31 | #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF)) |
d129bceb PO |
32 | |
33 | #define SDHCI_BLOCK_COUNT 0x06 | |
34 | ||
35 | #define SDHCI_ARGUMENT 0x08 | |
36 | ||
37 | #define SDHCI_TRANSFER_MODE 0x0C | |
38 | #define SDHCI_TRNS_DMA 0x01 | |
39 | #define SDHCI_TRNS_BLK_CNT_EN 0x02 | |
40 | #define SDHCI_TRNS_ACMD12 0x04 | |
41 | #define SDHCI_TRNS_READ 0x10 | |
42 | #define SDHCI_TRNS_MULTI 0x20 | |
43 | ||
44 | #define SDHCI_COMMAND 0x0E | |
45 | #define SDHCI_CMD_RESP_MASK 0x03 | |
46 | #define SDHCI_CMD_CRC 0x08 | |
47 | #define SDHCI_CMD_INDEX 0x10 | |
48 | #define SDHCI_CMD_DATA 0x20 | |
49 | ||
50 | #define SDHCI_CMD_RESP_NONE 0x00 | |
51 | #define SDHCI_CMD_RESP_LONG 0x01 | |
52 | #define SDHCI_CMD_RESP_SHORT 0x02 | |
53 | #define SDHCI_CMD_RESP_SHORT_BUSY 0x03 | |
54 | ||
55 | #define SDHCI_MAKE_CMD(c, f) (((c & 0xff) << 8) | (f & 0xff)) | |
56 | ||
57 | #define SDHCI_RESPONSE 0x10 | |
58 | ||
59 | #define SDHCI_BUFFER 0x20 | |
60 | ||
61 | #define SDHCI_PRESENT_STATE 0x24 | |
62 | #define SDHCI_CMD_INHIBIT 0x00000001 | |
63 | #define SDHCI_DATA_INHIBIT 0x00000002 | |
64 | #define SDHCI_DOING_WRITE 0x00000100 | |
65 | #define SDHCI_DOING_READ 0x00000200 | |
66 | #define SDHCI_SPACE_AVAILABLE 0x00000400 | |
67 | #define SDHCI_DATA_AVAILABLE 0x00000800 | |
68 | #define SDHCI_CARD_PRESENT 0x00010000 | |
69 | #define SDHCI_WRITE_PROTECT 0x00080000 | |
70 | ||
71 | #define SDHCI_HOST_CONTROL 0x28 | |
72 | #define SDHCI_CTRL_LED 0x01 | |
73 | #define SDHCI_CTRL_4BITBUS 0x02 | |
077df884 | 74 | #define SDHCI_CTRL_HISPD 0x04 |
d129bceb PO |
75 | |
76 | #define SDHCI_POWER_CONTROL 0x29 | |
146ad66e PO |
77 | #define SDHCI_POWER_ON 0x01 |
78 | #define SDHCI_POWER_180 0x0A | |
79 | #define SDHCI_POWER_300 0x0C | |
80 | #define SDHCI_POWER_330 0x0E | |
d129bceb PO |
81 | |
82 | #define SDHCI_BLOCK_GAP_CONTROL 0x2A | |
83 | ||
84 | #define SDHCI_WALK_UP_CONTROL 0x2B | |
85 | ||
86 | #define SDHCI_CLOCK_CONTROL 0x2C | |
87 | #define SDHCI_DIVIDER_SHIFT 8 | |
88 | #define SDHCI_CLOCK_CARD_EN 0x0004 | |
89 | #define SDHCI_CLOCK_INT_STABLE 0x0002 | |
90 | #define SDHCI_CLOCK_INT_EN 0x0001 | |
91 | ||
92 | #define SDHCI_TIMEOUT_CONTROL 0x2E | |
93 | ||
94 | #define SDHCI_SOFTWARE_RESET 0x2F | |
95 | #define SDHCI_RESET_ALL 0x01 | |
96 | #define SDHCI_RESET_CMD 0x02 | |
97 | #define SDHCI_RESET_DATA 0x04 | |
98 | ||
99 | #define SDHCI_INT_STATUS 0x30 | |
100 | #define SDHCI_INT_ENABLE 0x34 | |
101 | #define SDHCI_SIGNAL_ENABLE 0x38 | |
102 | #define SDHCI_INT_RESPONSE 0x00000001 | |
103 | #define SDHCI_INT_DATA_END 0x00000002 | |
104 | #define SDHCI_INT_DMA_END 0x00000008 | |
a406f5a3 PO |
105 | #define SDHCI_INT_SPACE_AVAIL 0x00000010 |
106 | #define SDHCI_INT_DATA_AVAIL 0x00000020 | |
d129bceb PO |
107 | #define SDHCI_INT_CARD_INSERT 0x00000040 |
108 | #define SDHCI_INT_CARD_REMOVE 0x00000080 | |
109 | #define SDHCI_INT_CARD_INT 0x00000100 | |
110 | #define SDHCI_INT_TIMEOUT 0x00010000 | |
111 | #define SDHCI_INT_CRC 0x00020000 | |
112 | #define SDHCI_INT_END_BIT 0x00040000 | |
113 | #define SDHCI_INT_INDEX 0x00080000 | |
114 | #define SDHCI_INT_DATA_TIMEOUT 0x00100000 | |
115 | #define SDHCI_INT_DATA_CRC 0x00200000 | |
116 | #define SDHCI_INT_DATA_END_BIT 0x00400000 | |
117 | #define SDHCI_INT_BUS_POWER 0x00800000 | |
118 | #define SDHCI_INT_ACMD12ERR 0x01000000 | |
119 | ||
120 | #define SDHCI_INT_NORMAL_MASK 0x00007FFF | |
121 | #define SDHCI_INT_ERROR_MASK 0xFFFF8000 | |
122 | ||
123 | #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \ | |
124 | SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX) | |
125 | #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \ | |
a406f5a3 | 126 | SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \ |
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127 | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \ |
128 | SDHCI_INT_DATA_END_BIT) | |
129 | ||
130 | #define SDHCI_ACMD12_ERR 0x3C | |
131 | ||
132 | /* 3E-3F reserved */ | |
133 | ||
134 | #define SDHCI_CAPABILITIES 0x40 | |
1c8cde92 PO |
135 | #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F |
136 | #define SDHCI_TIMEOUT_CLK_SHIFT 0 | |
137 | #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080 | |
d129bceb PO |
138 | #define SDHCI_CLOCK_BASE_MASK 0x00003F00 |
139 | #define SDHCI_CLOCK_BASE_SHIFT 8 | |
1d676e02 PO |
140 | #define SDHCI_MAX_BLOCK_MASK 0x00030000 |
141 | #define SDHCI_MAX_BLOCK_SHIFT 16 | |
077df884 | 142 | #define SDHCI_CAN_DO_HISPD 0x00200000 |
146ad66e PO |
143 | #define SDHCI_CAN_DO_DMA 0x00400000 |
144 | #define SDHCI_CAN_VDD_330 0x01000000 | |
145 | #define SDHCI_CAN_VDD_300 0x02000000 | |
146 | #define SDHCI_CAN_VDD_180 0x04000000 | |
d129bceb PO |
147 | |
148 | /* 44-47 reserved for more caps */ | |
149 | ||
150 | #define SDHCI_MAX_CURRENT 0x48 | |
151 | ||
152 | /* 4C-4F reserved for more max current */ | |
153 | ||
154 | /* 50-FB reserved */ | |
155 | ||
156 | #define SDHCI_SLOT_INT_STATUS 0xFC | |
157 | ||
158 | #define SDHCI_HOST_VERSION 0xFE | |
4a965505 PO |
159 | #define SDHCI_VENDOR_VER_MASK 0xFF00 |
160 | #define SDHCI_VENDOR_VER_SHIFT 8 | |
161 | #define SDHCI_SPEC_VER_MASK 0x00FF | |
162 | #define SDHCI_SPEC_VER_SHIFT 0 | |
d129bceb PO |
163 | |
164 | struct sdhci_chip; | |
165 | ||
166 | struct sdhci_host { | |
167 | struct sdhci_chip *chip; | |
168 | struct mmc_host *mmc; /* MMC structure */ | |
169 | ||
170 | spinlock_t lock; /* Mutex */ | |
171 | ||
172 | int flags; /* Host attributes */ | |
173 | #define SDHCI_USE_DMA (1<<0) | |
174 | ||
175 | unsigned int max_clk; /* Max possible freq (MHz) */ | |
1c8cde92 | 176 | unsigned int timeout_clk; /* Timeout freq (KHz) */ |
d129bceb PO |
177 | |
178 | unsigned int clock; /* Current clock (MHz) */ | |
146ad66e | 179 | unsigned short power; /* Current voltage */ |
d129bceb PO |
180 | |
181 | struct mmc_request *mrq; /* Current request */ | |
182 | struct mmc_command *cmd; /* Current command */ | |
183 | struct mmc_data *data; /* Current data request */ | |
184 | ||
185 | struct scatterlist *cur_sg; /* We're working on this */ | |
d129bceb PO |
186 | int num_sg; /* Entries left */ |
187 | int offset; /* Offset into current sg */ | |
188 | int remain; /* Bytes left in current */ | |
189 | ||
190 | int size; /* Remaining bytes in transfer */ | |
191 | ||
192 | char slot_descr[20]; /* Name for reservations */ | |
193 | ||
194 | int irq; /* Device IRQ */ | |
195 | int bar; /* PCI BAR index */ | |
196 | unsigned long addr; /* Bus address */ | |
197 | void __iomem * ioaddr; /* Mapped address */ | |
198 | ||
199 | struct tasklet_struct card_tasklet; /* Tasklet structures */ | |
200 | struct tasklet_struct finish_tasklet; | |
201 | ||
202 | struct timer_list timer; /* Timer for timeouts */ | |
203 | }; | |
204 | ||
205 | struct sdhci_chip { | |
206 | struct pci_dev *pdev; | |
207 | ||
df673b22 PO |
208 | unsigned long quirks; |
209 | ||
d129bceb PO |
210 | int num_slots; /* Slots on controller */ |
211 | struct sdhci_host *hosts[0]; /* Pointers to hosts */ | |
212 | }; |