forked from lemonjesus/qemu-ipod-nano
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathsdhci.h
312 lines (269 loc) · 12.3 KB
/
sdhci.h
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
/*
* SD Association Host Standard Specification v2.0 controller emulation
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Mitsyanko Igor <i.mitsyanko@samsung.com>
* Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
*
* Based on MMC controller for Samsung S5PC1xx-based board emulation
* by Alexey Merkulov and Vladimir Monakhov.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SDHCI_H
#define SDHCI_H
#include "qemu-common.h"
#include "hw/sysbus.h"
#include "hw/sd.h"
/* R/W SDMA System Address register 0x0 */
#define SDHC_SYSAD 0x00
/* R/W Host DMA Buffer Boundary and Transfer Block Size Register 0x0 */
#define SDHC_BLKSIZE 0x04
/* R/W Blocks count for current transfer 0x0 */
#define SDHC_BLKCNT 0x06
/* R/W Command Argument Register 0x0 */
#define SDHC_ARGUMENT 0x08
/* R/W Transfer Mode Setting Register 0x0 */
#define SDHC_TRNMOD 0x0C
#define SDHC_TRNS_DMA 0x0001
#define SDHC_TRNS_BLK_CNT_EN 0x0002
#define SDHC_TRNS_ACMD12 0x0004
#define SDHC_TRNS_READ 0x0010
#define SDHC_TRNS_MULTI 0x0020
/* R/W Command Register 0x0 */
#define SDHC_CMDREG 0x0E
#define SDHC_CMD_RSP_WITH_BUSY (3 << 0)
#define SDHC_CMD_DATA_PRESENT (1 << 5)
#define SDHC_CMD_SUSPEND (1 << 6)
#define SDHC_CMD_RESUME (1 << 7)
#define SDHC_CMD_ABORT ((1 << 6)|(1 << 7))
#define SDHC_CMD_TYPE_MASK ((1 << 6)|(1 << 7))
#define SDHC_COMMAND_TYPE(x) ((x) & SDHC_CMD_TYPE_MASK)
/* ROC Response Register 0 0x0 */
#define SDHC_RSPREG0 0x10
/* ROC Response Register 1 0x0 */
#define SDHC_RSPREG1 0x14
/* ROC Response Register 2 0x0 */
#define SDHC_RSPREG2 0x18
/* ROC Response Register 3 0x0 */
#define SDHC_RSPREG3 0x1C
/* R/W Buffer Data Register 0x0 */
#define SDHC_BDATA 0x20
/* R/ROC Present State Register 0x000A0000 */
#define SDHC_PRNSTS 0x24
#define SDHC_CMD_INHIBIT 0x00000001
#define SDHC_DATA_INHIBIT 0x00000002
#define SDHC_DAT_LINE_ACTIVE 0x00000004
#define SDHC_DOING_WRITE 0x00000100
#define SDHC_DOING_READ 0x00000200
#define SDHC_SPACE_AVAILABLE 0x00000400
#define SDHC_DATA_AVAILABLE 0x00000800
#define SDHC_CARD_PRESENT 0x00010000
#define SDHC_CARD_DETECT 0x00040000
#define SDHC_WRITE_PROTECT 0x00080000
#define TRANSFERRING_DATA(x) \
((x) & (SDHC_DOING_READ | SDHC_DOING_WRITE))
/* R/W Host control Register 0x0 */
#define SDHC_HOSTCTL 0x28
#define SDHC_CTRL_DMA_CHECK_MASK 0x18
#define SDHC_CTRL_SDMA 0x00
#define SDHC_CTRL_ADMA1_32 0x08
#define SDHC_CTRL_ADMA2_32 0x10
#define SDHC_CTRL_ADMA2_64 0x18
#define SDHC_DMA_TYPE(x) ((x) & SDHC_CTRL_DMA_CHECK_MASK)
/* R/W Power Control Register 0x0 */
#define SDHC_PWRCON 0x29
#define SDHC_POWER_ON (1 << 0)
/* R/W Block Gap Control Register 0x0 */
#define SDHC_BLKGAP 0x2A
#define SDHC_STOP_AT_GAP_REQ 0x01
#define SDHC_CONTINUE_REQ 0x02
/* R/W WakeUp Control Register 0x0 */
#define SDHC_WAKCON 0x2B
#define SDHC_WKUP_ON_INS (1 << 1)
#define SDHC_WKUP_ON_RMV (1 << 2)
/* CLKCON */
#define SDHC_CLKCON 0x2C
#define SDHC_CLOCK_INT_STABLE 0x0002
#define SDHC_CLOCK_INT_EN 0x0001
#define SDHC_CLOCK_SDCLK_EN (1 << 2)
#define SDHC_CLOCK_CHK_MASK 0x0007
#define SDHC_CLOCK_IS_ON(x) \
(((x) & SDHC_CLOCK_CHK_MASK) == SDHC_CLOCK_CHK_MASK)
/* R/W Timeout Control Register 0x0 */
#define SDHC_TIMEOUTCON 0x2E
/* R/W Software Reset Register 0x0 */
#define SDHC_SWRST 0x2F
#define SDHC_RESET_ALL 0x01
#define SDHC_RESET_CMD 0x02
#define SDHC_RESET_DATA 0x04
/* ROC/RW1C Normal Interrupt Status Register 0x0 */
#define SDHC_NORINTSTS 0x30
#define SDHC_NIS_ERR 0x8000
#define SDHC_NIS_CMDCMP 0x0001
#define SDHC_NIS_TRSCMP 0x0002
#define SDHC_NIS_BLKGAP 0x0004
#define SDHC_NIS_DMA 0x0008
#define SDHC_NIS_WBUFRDY 0x0010
#define SDHC_NIS_RBUFRDY 0x0020
#define SDHC_NIS_INSERT 0x0040
#define SDHC_NIS_REMOVE 0x0080
#define SDHC_NIS_CARDINT 0x0100
/* ROC/RW1C Error Interrupt Status Register 0x0 */
#define SDHC_ERRINTSTS 0x32
#define SDHC_EIS_CMDTIMEOUT 0x0001
#define SDHC_EIS_BLKGAP 0x0004
#define SDHC_EIS_CMDIDX 0x0008
#define SDHC_EIS_CMD12ERR 0x0100
#define SDHC_EIS_ADMAERR 0x0200
/* R/W Normal Interrupt Status Enable Register 0x0 */
#define SDHC_NORINTSTSEN 0x34
#define SDHC_NISEN_CMDCMP 0x0001
#define SDHC_NISEN_TRSCMP 0x0002
#define SDHC_NISEN_DMA 0x0008
#define SDHC_NISEN_WBUFRDY 0x0010
#define SDHC_NISEN_RBUFRDY 0x0020
#define SDHC_NISEN_INSERT 0x0040
#define SDHC_NISEN_REMOVE 0x0080
#define SDHC_NISEN_CARDINT 0x0100
/* R/W Error Interrupt Status Enable Register 0x0 */
#define SDHC_ERRINTSTSEN 0x36
#define SDHC_EISEN_CMDTIMEOUT 0x0001
#define SDHC_EISEN_BLKGAP 0x0004
#define SDHC_EISEN_CMDIDX 0x0008
#define SDHC_EISEN_ADMAERR 0x0200
/* R/W Normal Interrupt Signal Enable Register 0x0 */
#define SDHC_NORINTSIGEN 0x38
#define SDHC_NORINTSIG_INSERT (1 << 6)
#define SDHC_NORINTSIG_REMOVE (1 << 7)
/* R/W Error Interrupt Signal Enable Register 0x0 */
#define SDHC_ERRINTSIGEN 0x3A
/* ROC Auto CMD12 error status register 0x0 */
#define SDHC_ACMD12ERRSTS 0x3C
/* HWInit Capabilities Register 0x05E80080 */
#define SDHC_CAPAREG 0x40
#define SDHC_CAN_DO_DMA 0x00400000
#define SDHC_CAN_DO_ADMA2 0x00080000
#define SDHC_CAN_DO_ADMA1 0x00100000
#define SDHC_64_BIT_BUS_SUPPORT (1 << 28)
#define SDHC_CAPAB_BLOCKSIZE(x) (((x) >> 16) & 0x3)
/* HWInit Maximum Current Capabilities Register 0x0 */
#define SDHC_MAXCURR 0x48
/* W Force Event Auto CMD12 Error Interrupt Register 0x0000 */
#define SDHC_FEAER 0x50
/* W Force Event Error Interrupt Register Error Interrupt 0x0000 */
#define SDHC_FEERR 0x52
/* R/W ADMA Error Status Register 0x00 */
#define SDHC_ADMAERR 0x54
#define SDHC_ADMAERR_LENGTH_MISMATCH (1 << 2)
#define SDHC_ADMAERR_STATE_ST_STOP (0 << 0)
#define SDHC_ADMAERR_STATE_ST_FDS (1 << 0)
#define SDHC_ADMAERR_STATE_ST_TFR (3 << 0)
#define SDHC_ADMAERR_STATE_MASK (3 << 0)
/* R/W ADMA System Address Register 0x00 */
#define SDHC_ADMASYSADDR 0x58
#define SDHC_ADMA_ATTR_SET_LEN (1 << 4)
#define SDHC_ADMA_ATTR_ACT_TRAN (1 << 5)
#define SDHC_ADMA_ATTR_ACT_LINK (3 << 4)
#define SDHC_ADMA_ATTR_INT (1 << 2)
#define SDHC_ADMA_ATTR_END (1 << 1)
#define SDHC_ADMA_ATTR_VALID (1 << 0)
#define SDHC_ADMA_ATTR_ACT_MASK ((1 << 4)|(1 << 5))
/* Slot interrupt status */
#define SDHC_SLOT_INT_STATUS 0xFC
/* HWInit Host Controller Version Register 0x0401 */
#define SDHC_HCVER 0xFE
#define SD_HOST_SPECv2_VERS 0x2401
#define SDHC_REGISTERS_MAP_SIZE 0x100
#define SDHC_INSERTION_DELAY (get_ticks_per_sec())
#define SDHC_TRANSFER_DELAY 100
#define SDHC_ADMA_DESCS_PER_DELAY 5
#define SDHC_CMD_RESPONSE (3 << 0)
enum {
sdhc_not_stopped = 0, /* normal SDHC state */
sdhc_gap_read = 1, /* SDHC stopped at block gap during read operation */
sdhc_gap_write = 2 /* SDHC stopped at block gap during write operation */
};
/* SD/MMC host controller state */
typedef struct SDHCIState {
SysBusDevice busdev;
SDState *card;
MemoryRegion iomem;
QEMUTimer *insert_timer; /* timer for 'changing' sd card. */
QEMUTimer *transfer_timer;
qemu_irq eject_cb;
qemu_irq ro_cb;
qemu_irq irq;
uint32_t sdmasysad; /* SDMA System Address register */
uint16_t blksize; /* Host DMA Buff Boundary and Transfer BlkSize Reg */
uint16_t blkcnt; /* Blocks count for current transfer */
uint32_t argument; /* Command Argument Register */
uint16_t trnmod; /* Transfer Mode Setting Register */
uint16_t cmdreg; /* Command Register */
uint32_t rspreg[4]; /* Response Registers 0-3 */
uint32_t prnsts; /* Present State Register */
uint8_t hostctl; /* Host Control Register */
uint8_t pwrcon; /* Power control Register */
uint8_t blkgap; /* Block Gap Control Register */
uint8_t wakcon; /* WakeUp Control Register */
uint16_t clkcon; /* Clock control Register */
uint8_t timeoutcon; /* Timeout Control Register */
uint8_t admaerr; /* ADMA Error Status Register */
uint16_t norintsts; /* Normal Interrupt Status Register */
uint16_t errintsts; /* Error Interrupt Status Register */
uint16_t norintstsen; /* Normal Interrupt Status Enable Register */
uint16_t errintstsen; /* Error Interrupt Status Enable Register */
uint16_t norintsigen; /* Normal Interrupt Signal Enable Register */
uint16_t errintsigen; /* Error Interrupt Signal Enable Register */
uint16_t acmd12errsts; /* Auto CMD12 error status register */
uint64_t admasysaddr; /* ADMA System Address Register */
uint32_t capareg; /* Capabilities Register */
uint32_t maxcurr; /* Maximum Current Capabilities Register */
uint8_t *fifo_buffer; /* SD host i/o FIFO buffer */
uint32_t buf_maxsz;
uint16_t data_count; /* current element in FIFO buffer */
uint8_t stopped_state;/* Current SDHC state */
/* Buffer Data Port Register - virtual access point to R and W buffers */
/* Software Reset Register - always reads as 0 */
/* Force Event Auto CMD12 Error Interrupt Reg - write only */
/* Force Event Error Interrupt Register- write only */
/* RO Host Controller Version Register always reads as 0x2401 */
} SDHCIState;
typedef struct SDHCIClass {
SysBusDeviceClass busdev_class;
void (*reset)(SDHCIState *s);
uint32_t (*mem_read)(SDHCIState *s, unsigned int offset, unsigned size);
void (*mem_write)(SDHCIState *s, unsigned int offset, uint32_t value,
unsigned size);
void (*send_command)(SDHCIState *s);
bool (*can_issue_command)(SDHCIState *s);
void (*data_transfer)(SDHCIState *s);
void (*end_data_transfer)(SDHCIState *s);
void (*do_sdma_single)(SDHCIState *s);
void (*do_sdma_multi)(SDHCIState *s);
void (*do_adma)(SDHCIState *s);
void (*read_block_from_card)(SDHCIState *s);
void (*write_block_to_card)(SDHCIState *s);
uint32_t (*bdata_read)(SDHCIState *s, unsigned size);
void (*bdata_write)(SDHCIState *s, uint32_t value, unsigned size);
} SDHCIClass;
extern const VMStateDescription sdhci_vmstate;
#define TYPE_SDHCI "generic-sdhci"
#define SDHCI(obj) \
OBJECT_CHECK(SDHCIState, (obj), TYPE_SDHCI)
#define SDHCI_CLASS(klass) \
OBJECT_CLASS_CHECK(SDHCIClass, (klass), TYPE_SDHCI)
#define SDHCI_GET_CLASS(obj) \
OBJECT_GET_CLASS(SDHCIClass, (obj), TYPE_SDHCI)
#endif /* SDHCI_H */