2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include "opt_mmccam.h"
35 /* Macro for sizing the SDMA bounce buffer on the SDMA buffer boundary. */
36 #define SDHCI_SDMA_BNDRY_TO_BBUFSZ(bndry) (4096 * (1 << bndry))
38 /* Controller doesn't honor resets unless we touch the clock register */
39 #define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1 << 0)
40 /* Controller really supports DMA */
41 #define SDHCI_QUIRK_FORCE_DMA (1 << 1)
42 /* Controller has unusable DMA engine */
43 #define SDHCI_QUIRK_BROKEN_DMA (1 << 2)
44 /* Controller doesn't like to be reset when there is no card inserted. */
45 #define SDHCI_QUIRK_NO_CARD_NO_RESET (1 << 3)
46 /* Controller has flaky internal state so reset it on each ios change */
47 #define SDHCI_QUIRK_RESET_ON_IOS (1 << 4)
48 /* Controller can only DMA chunk sizes that are a multiple of 32 bits */
49 #define SDHCI_QUIRK_32BIT_DMA_SIZE (1 << 5)
50 /* Controller needs to be reset after each request to stay stable */
51 #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1 << 6)
52 /* Controller has an off-by-one issue with timeout value */
53 #define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1 << 7)
54 /* Controller has broken read timings */
55 #define SDHCI_QUIRK_BROKEN_TIMINGS (1 << 8)
56 /* Controller needs lowered frequency */
57 #define SDHCI_QUIRK_LOWER_FREQUENCY (1 << 9)
58 /* Data timeout is invalid, should use SD clock */
59 #define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1 << 10)
60 /* Timeout value is invalid, should be overriden */
61 #define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1 << 11)
62 /* SDHCI_CAPABILITIES is invalid */
63 #define SDHCI_QUIRK_MISSING_CAPS (1 << 12)
64 /* Hardware shifts the 136-bit response, don't do it in software. */
65 #define SDHCI_QUIRK_DONT_SHIFT_RESPONSE (1 << 13)
66 /* Wait to see reset bit asserted before waiting for de-asserted */
67 #define SDHCI_QUIRK_WAITFOR_RESET_ASSERTED (1 << 14)
68 /* Leave controller in standard mode when putting card in HS mode. */
69 #define SDHCI_QUIRK_DONT_SET_HISPD_BIT (1 << 15)
70 /* Alternate clock source is required when supplying a 400 KHz clock. */
71 #define SDHCI_QUIRK_BCM577XX_400KHZ_CLKSRC (1 << 16)
72 /* Card insert/remove interrupts don't work, polling required. */
73 #define SDHCI_QUIRK_POLL_CARD_PRESENT (1 << 17)
74 /* All controller slots are non-removable. */
75 #define SDHCI_QUIRK_ALL_SLOTS_NON_REMOVABLE (1 << 18)
76 /* Issue custom Intel controller reset sequence after power-up. */
77 #define SDHCI_QUIRK_INTEL_POWER_UP_RESET (1 << 19)
78 /* Data timeout is invalid, use 1 MHz clock instead. */
79 #define SDHCI_QUIRK_DATA_TIMEOUT_1MHZ (1 << 20)
80 /* Controller doesn't allow access boot partitions. */
81 #define SDHCI_QUIRK_BOOT_NOACC (1 << 21)
82 /* Controller waits for busy responses. */
83 #define SDHCI_QUIRK_WAIT_WHILE_BUSY (1 << 22)
84 /* Controller supports eMMC DDR52 mode. */
85 #define SDHCI_QUIRK_MMC_DDR52 (1 << 23)
86 /* Controller support for UHS DDR50 mode is broken. */
87 #define SDHCI_QUIRK_BROKEN_UHS_DDR50 (1 << 24)
88 /* Controller support for eMMC HS200 mode is broken. */
89 #define SDHCI_QUIRK_BROKEN_MMC_HS200 (1 << 25)
90 /* Controller reports support for eMMC HS400 mode as SDHCI_CAN_MMC_HS400. */
91 #define SDHCI_QUIRK_CAPS_BIT63_FOR_MMC_HS400 (1 << 26)
92 /* Controller support for SDHCI_CTRL2_PRESET_VALUE is broken. */
93 #define SDHCI_QUIRK_PRESET_VALUE_BROKEN (1 << 27)
94 /* Controller does not support or the support for ACMD12 is broken. */
95 #define SDHCI_QUIRK_BROKEN_AUTO_STOP (1 << 28)
96 /* Controller supports eMMC HS400 mode if SDHCI_CAN_SDR104 is set. */
97 #define SDHCI_QUIRK_MMC_HS400_IF_CAN_SDR104 (1 << 29)
98 /* SDMA boundary in SDHCI_BLOCK_SIZE broken - use front-end supplied value. */
99 #define SDHCI_QUIRK_BROKEN_SDMA_BOUNDARY (1 << 30)
102 * Controller registers
104 #define SDHCI_DMA_ADDRESS 0x00
106 #define SDHCI_BLOCK_SIZE 0x04
107 #define SDHCI_BLKSZ_SDMA_BNDRY_4K 0x00
108 #define SDHCI_BLKSZ_SDMA_BNDRY_8K 0x01
109 #define SDHCI_BLKSZ_SDMA_BNDRY_16K 0x02
110 #define SDHCI_BLKSZ_SDMA_BNDRY_32K 0x03
111 #define SDHCI_BLKSZ_SDMA_BNDRY_64K 0x04
112 #define SDHCI_BLKSZ_SDMA_BNDRY_128K 0x05
113 #define SDHCI_BLKSZ_SDMA_BNDRY_256K 0x06
114 #define SDHCI_BLKSZ_SDMA_BNDRY_512K 0x07
115 #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF))
117 #define SDHCI_BLOCK_COUNT 0x06
119 #define SDHCI_ARGUMENT 0x08
121 #define SDHCI_TRANSFER_MODE 0x0C
122 #define SDHCI_TRNS_DMA 0x01
123 #define SDHCI_TRNS_BLK_CNT_EN 0x02
124 #define SDHCI_TRNS_ACMD12 0x04
125 #define SDHCI_TRNS_READ 0x10
126 #define SDHCI_TRNS_MULTI 0x20
128 #define SDHCI_COMMAND_FLAGS 0x0E
129 #define SDHCI_CMD_RESP_NONE 0x00
130 #define SDHCI_CMD_RESP_LONG 0x01
131 #define SDHCI_CMD_RESP_SHORT 0x02
132 #define SDHCI_CMD_RESP_SHORT_BUSY 0x03
133 #define SDHCI_CMD_RESP_MASK 0x03
134 #define SDHCI_CMD_CRC 0x08
135 #define SDHCI_CMD_INDEX 0x10
136 #define SDHCI_CMD_DATA 0x20
137 #define SDHCI_CMD_TYPE_NORMAL 0x00
138 #define SDHCI_CMD_TYPE_SUSPEND 0x40
139 #define SDHCI_CMD_TYPE_RESUME 0x80
140 #define SDHCI_CMD_TYPE_ABORT 0xc0
141 #define SDHCI_CMD_TYPE_MASK 0xc0
143 #define SDHCI_COMMAND 0x0F
145 #define SDHCI_RESPONSE 0x10
147 #define SDHCI_BUFFER 0x20
149 #define SDHCI_PRESENT_STATE 0x24
150 #define SDHCI_CMD_INHIBIT 0x00000001
151 #define SDHCI_DAT_INHIBIT 0x00000002
152 #define SDHCI_DAT_ACTIVE 0x00000004
153 #define SDHCI_RETUNE_REQUEST 0x00000008
154 #define SDHCI_DOING_WRITE 0x00000100
155 #define SDHCI_DOING_READ 0x00000200
156 #define SDHCI_SPACE_AVAILABLE 0x00000400
157 #define SDHCI_DATA_AVAILABLE 0x00000800
158 #define SDHCI_CARD_PRESENT 0x00010000
159 #define SDHCI_CARD_STABLE 0x00020000
160 #define SDHCI_CARD_PIN 0x00040000
161 #define SDHCI_WRITE_PROTECT 0x00080000
162 #define SDHCI_STATE_DAT_MASK 0x00f00000
163 #define SDHCI_STATE_CMD 0x01000000
165 #define SDHCI_HOST_CONTROL 0x28
166 #define SDHCI_CTRL_LED 0x01
167 #define SDHCI_CTRL_4BITBUS 0x02
168 #define SDHCI_CTRL_HISPD 0x04
169 #define SDHCI_CTRL_SDMA 0x08
170 #define SDHCI_CTRL_ADMA2 0x10
171 #define SDHCI_CTRL_ADMA264 0x18
172 #define SDHCI_CTRL_DMA_MASK 0x18
173 #define SDHCI_CTRL_8BITBUS 0x20
174 #define SDHCI_CTRL_CARD_DET 0x40
175 #define SDHCI_CTRL_FORCE_CARD 0x80
177 #define SDHCI_POWER_CONTROL 0x29
178 #define SDHCI_POWER_ON 0x01
179 #define SDHCI_POWER_180 0x0A
180 #define SDHCI_POWER_300 0x0C
181 #define SDHCI_POWER_330 0x0E
183 #define SDHCI_BLOCK_GAP_CONTROL 0x2A
185 #define SDHCI_WAKE_UP_CONTROL 0x2B
187 #define SDHCI_CLOCK_CONTROL 0x2C
188 #define SDHCI_DIVIDER_MASK 0xff
189 #define SDHCI_DIVIDER_MASK_LEN 8
190 #define SDHCI_DIVIDER_SHIFT 8
191 #define SDHCI_DIVIDER_HI_MASK 3
192 #define SDHCI_DIVIDER_HI_SHIFT 6
193 #define SDHCI_CLOCK_CARD_EN 0x0004
194 #define SDHCI_CLOCK_INT_STABLE 0x0002
195 #define SDHCI_CLOCK_INT_EN 0x0001
196 #define SDHCI_DIVIDERS_MASK \
197 ((SDHCI_DIVIDER_MASK << SDHCI_DIVIDER_SHIFT) | \
198 (SDHCI_DIVIDER_HI_MASK << SDHCI_DIVIDER_HI_SHIFT))
200 #define SDHCI_TIMEOUT_CONTROL 0x2E
202 #define SDHCI_SOFTWARE_RESET 0x2F
203 #define SDHCI_RESET_ALL 0x01
204 #define SDHCI_RESET_CMD 0x02
205 #define SDHCI_RESET_DATA 0x04
207 #define SDHCI_INT_STATUS 0x30
208 #define SDHCI_INT_ENABLE 0x34
209 #define SDHCI_SIGNAL_ENABLE 0x38
210 #define SDHCI_INT_RESPONSE 0x00000001
211 #define SDHCI_INT_DATA_END 0x00000002
212 #define SDHCI_INT_BLOCK_GAP 0x00000004
213 #define SDHCI_INT_DMA_END 0x00000008
214 #define SDHCI_INT_SPACE_AVAIL 0x00000010
215 #define SDHCI_INT_DATA_AVAIL 0x00000020
216 #define SDHCI_INT_CARD_INSERT 0x00000040
217 #define SDHCI_INT_CARD_REMOVE 0x00000080
218 #define SDHCI_INT_CARD_INT 0x00000100
219 #define SDHCI_INT_INT_A 0x00000200
220 #define SDHCI_INT_INT_B 0x00000400
221 #define SDHCI_INT_INT_C 0x00000800
222 #define SDHCI_INT_RETUNE 0x00001000
223 #define SDHCI_INT_ERROR 0x00008000
224 #define SDHCI_INT_TIMEOUT 0x00010000
225 #define SDHCI_INT_CRC 0x00020000
226 #define SDHCI_INT_END_BIT 0x00040000
227 #define SDHCI_INT_INDEX 0x00080000
228 #define SDHCI_INT_DATA_TIMEOUT 0x00100000
229 #define SDHCI_INT_DATA_CRC 0x00200000
230 #define SDHCI_INT_DATA_END_BIT 0x00400000
231 #define SDHCI_INT_BUS_POWER 0x00800000
232 #define SDHCI_INT_ACMD12ERR 0x01000000
233 #define SDHCI_INT_ADMAERR 0x02000000
234 #define SDHCI_INT_TUNEERR 0x04000000
236 #define SDHCI_INT_NORMAL_MASK 0x00007FFF
237 #define SDHCI_INT_ERROR_MASK 0xFFFF8000
239 #define SDHCI_INT_CMD_ERROR_MASK (SDHCI_INT_TIMEOUT | \
240 SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX)
242 #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_CMD_ERROR_MASK)
244 #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
245 SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
246 SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
247 SDHCI_INT_DATA_END_BIT)
249 #define SDHCI_ACMD12_ERR 0x3C
251 #define SDHCI_HOST_CONTROL2 0x3E
252 #define SDHCI_CTRL2_PRESET_VALUE 0x8000
253 #define SDHCI_CTRL2_ASYNC_INTR 0x4000
254 #define SDHCI_CTRL2_64BIT_ENABLE 0x2000
255 #define SDHCI_CTRL2_HOST_V4_ENABLE 0x1000
256 #define SDHCI_CTRL2_CMD23_ENABLE 0x0800
257 #define SDHCI_CTRL2_ADMA2_LENGTH_MODE 0x0400
258 #define SDHCI_CTRL2_UHS2_IFACE_ENABLE 0x0100
259 #define SDHCI_CTRL2_SAMPLING_CLOCK 0x0080
260 #define SDHCI_CTRL2_EXEC_TUNING 0x0040
261 #define SDHCI_CTRL2_DRIVER_TYPE_MASK 0x0030
262 #define SDHCI_CTRL2_DRIVER_TYPE_B 0x0000
263 #define SDHCI_CTRL2_DRIVER_TYPE_A 0x0010
264 #define SDHCI_CTRL2_DRIVER_TYPE_C 0x0020
265 #define SDHCI_CTRL2_DRIVER_TYPE_D 0x0030
266 #define SDHCI_CTRL2_S18_ENABLE 0x0008
267 #define SDHCI_CTRL2_UHS_MASK 0x0007
268 #define SDHCI_CTRL2_UHS_SDR12 0x0000
269 #define SDHCI_CTRL2_UHS_SDR25 0x0001
270 #define SDHCI_CTRL2_UHS_SDR50 0x0002
271 #define SDHCI_CTRL2_UHS_SDR104 0x0003
272 #define SDHCI_CTRL2_UHS_DDR50 0x0004
273 #define SDHCI_CTRL2_MMC_HS400 0x0005 /* non-standard */
275 #define SDHCI_CAPABILITIES 0x40
276 #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F
277 #define SDHCI_TIMEOUT_CLK_SHIFT 0
278 #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080
279 #define SDHCI_CLOCK_BASE_MASK 0x00003F00
280 #define SDHCI_CLOCK_V3_BASE_MASK 0x0000FF00
281 #define SDHCI_CLOCK_BASE_SHIFT 8
282 #define SDHCI_MAX_BLOCK_MASK 0x00030000
283 #define SDHCI_MAX_BLOCK_SHIFT 16
284 #define SDHCI_CAN_DO_8BITBUS 0x00040000
285 #define SDHCI_CAN_DO_ADMA2 0x00080000
286 #define SDHCI_CAN_DO_HISPD 0x00200000
287 #define SDHCI_CAN_DO_DMA 0x00400000
288 #define SDHCI_CAN_DO_SUSPEND 0x00800000
289 #define SDHCI_CAN_VDD_330 0x01000000
290 #define SDHCI_CAN_VDD_300 0x02000000
291 #define SDHCI_CAN_VDD_180 0x04000000
292 #define SDHCI_CAN_DO_64BIT 0x10000000
293 #define SDHCI_CAN_ASYNC_INTR 0x20000000
294 #define SDHCI_SLOTTYPE_MASK 0xC0000000
295 #define SDHCI_SLOTTYPE_REMOVABLE 0x00000000
296 #define SDHCI_SLOTTYPE_EMBEDDED 0x40000000
297 #define SDHCI_SLOTTYPE_SHARED 0x80000000
299 #define SDHCI_CAPABILITIES2 0x44
300 #define SDHCI_CAN_SDR50 0x00000001
301 #define SDHCI_CAN_SDR104 0x00000002
302 #define SDHCI_CAN_DDR50 0x00000004
303 #define SDHCI_CAN_DRIVE_TYPE_A 0x00000010
304 #define SDHCI_CAN_DRIVE_TYPE_C 0x00000020
305 #define SDHCI_CAN_DRIVE_TYPE_D 0x00000040
306 #define SDHCI_RETUNE_CNT_MASK 0x00000F00
307 #define SDHCI_RETUNE_CNT_SHIFT 8
308 #define SDHCI_TUNE_SDR50 0x00002000
309 #define SDHCI_RETUNE_MODES_MASK 0x0000C000
310 #define SDHCI_RETUNE_MODES_SHIFT 14
311 #define SDHCI_CLOCK_MULT_MASK 0x00FF0000
312 #define SDHCI_CLOCK_MULT_SHIFT 16
313 #define SDHCI_CAN_MMC_HS400 0x80000000 /* non-standard */
315 #define SDHCI_MAX_CURRENT 0x48
316 #define SDHCI_FORCE_AUTO_EVENT 0x50
317 #define SDHCI_FORCE_INTR_EVENT 0x52
319 #define SDHCI_ADMA_ERR 0x54
320 #define SDHCI_ADMA_ERR_LENGTH 0x04
321 #define SDHCI_ADMA_ERR_STATE_MASK 0x03
322 #define SDHCI_ADMA_ERR_STATE_STOP 0x00
323 #define SDHCI_ADMA_ERR_STATE_FDS 0x01
324 #define SDHCI_ADMA_ERR_STATE_TFR 0x03
326 #define SDHCI_ADMA_ADDRESS_LO 0x58
327 #define SDHCI_ADMA_ADDRESS_HI 0x5C
329 #define SDHCI_PRESET_VALUE 0x60
330 #define SDHCI_SHARED_BUS_CTRL 0xE0
332 #define SDHCI_SLOT_INT_STATUS 0xFC
334 #define SDHCI_HOST_VERSION 0xFE
335 #define SDHCI_VENDOR_VER_MASK 0xFF00
336 #define SDHCI_VENDOR_VER_SHIFT 8
337 #define SDHCI_SPEC_VER_MASK 0x00FF
338 #define SDHCI_SPEC_VER_SHIFT 0
339 #define SDHCI_SPEC_100 0
340 #define SDHCI_SPEC_200 1
341 #define SDHCI_SPEC_300 2
342 #define SDHCI_SPEC_400 3
343 #define SDHCI_SPEC_410 4
344 #define SDHCI_SPEC_420 5
346 SYSCTL_DECL(_hw_sdhci);
348 extern u_int sdhci_quirk_clear;
349 extern u_int sdhci_quirk_set;
352 struct mtx mtx; /* Slot mutex */
353 u_int quirks; /* Chip specific quirks */
354 u_int caps; /* Override SDHCI_CAPABILITIES */
355 u_int caps2; /* Override SDHCI_CAPABILITIES2 */
356 device_t bus; /* Bus device */
357 device_t dev; /* Slot device */
358 u_char num; /* Slot number */
359 u_char opt; /* Slot options */
360 #define SDHCI_HAVE_DMA 0x01
361 #define SDHCI_PLATFORM_TRANSFER 0x02
362 #define SDHCI_NON_REMOVABLE 0x04
363 #define SDHCI_TUNING_SUPPORTED 0x08
364 #define SDHCI_TUNING_ENABLED 0x10
365 #define SDHCI_SDR50_NEEDS_TUNING 0x20
366 #define SDHCI_SLOT_EMBEDDED 0x40
368 int timeout; /* Transfer timeout */
369 uint32_t max_clk; /* Max possible freq */
370 uint32_t timeout_clk; /* Timeout freq */
371 bus_dma_tag_t dmatag;
374 bus_addr_t paddr; /* DMA buffer address */
375 uint32_t sdma_bbufsz; /* SDMA bounce buffer size */
376 uint8_t sdma_boundary; /* SDMA boundary */
377 struct task card_task; /* Card presence check task */
379 card_delayed_task;/* Card insert delayed task */
380 struct callout card_poll_callout;/* Card present polling callout */
381 struct callout timeout_callout;/* Card command/data response timeout */
382 struct callout retune_callout; /* Re-tuning mode 1 callout */
383 struct mmc_host host; /* Host parameters */
384 struct mmc_request *req; /* Current request */
385 struct mmc_command *curcmd; /* Current command of current request */
387 struct mmc_request *tune_req; /* Tuning request */
388 struct mmc_command *tune_cmd; /* Tuning command of tuning request */
389 struct mmc_data *tune_data; /* Tuning data of tuning command */
390 uint32_t retune_ticks; /* Re-tuning callout ticks [hz] */
391 uint32_t intmask; /* Current interrupt mask */
392 uint32_t clock; /* Current clock freq. */
393 size_t offset; /* Data buffer offset */
394 uint8_t hostctrl; /* Current host control register */
395 uint8_t retune_count; /* Controller re-tuning count [s] */
396 uint8_t retune_mode; /* Controller re-tuning mode */
397 #define SDHCI_RETUNE_MODE_1 0x00
398 #define SDHCI_RETUNE_MODE_2 0x01
399 #define SDHCI_RETUNE_MODE_3 0x02
400 uint8_t retune_req; /* Re-tuning request status */
401 #define SDHCI_RETUNE_REQ_NEEDED 0x01 /* Re-tuning w/o circuit reset needed */
402 #define SDHCI_RETUNE_REQ_RESET 0x02 /* Re-tuning w/ circuit reset needed */
403 u_char power; /* Current power */
404 u_char bus_busy; /* Bus busy status */
405 u_char cmd_done; /* CMD command part done flag */
406 u_char data_done; /* DAT command part done flag */
407 u_char flags; /* Request execution flags */
408 #define CMD_STARTED 1
409 #define STOP_STARTED 2
410 #define SDHCI_USE_DMA 4 /* Use DMA for this req. */
411 #define PLATFORM_DATA_STARTED 8 /* Data xfer is handled by platform */
416 struct cam_devq *devq;
419 u_char card_present; /* XXX Maybe derive this from elsewhere? */
423 int sdhci_generic_read_ivar(device_t bus, device_t child, int which,
425 int sdhci_generic_write_ivar(device_t bus, device_t child, int which,
427 int sdhci_init_slot(device_t dev, struct sdhci_slot *slot, int num);
428 void sdhci_start_slot(struct sdhci_slot *slot);
429 /* performs generic clean-up for platform transfers */
430 void sdhci_finish_data(struct sdhci_slot *slot);
431 int sdhci_cleanup_slot(struct sdhci_slot *slot);
432 int sdhci_generic_suspend(struct sdhci_slot *slot);
433 int sdhci_generic_resume(struct sdhci_slot *slot);
434 int sdhci_generic_update_ios(device_t brdev, device_t reqdev);
435 int sdhci_generic_tune(device_t brdev, device_t reqdev, bool hs400);
436 int sdhci_generic_switch_vccq(device_t brdev, device_t reqdev);
437 int sdhci_generic_retune(device_t brdev, device_t reqdev, bool reset);
438 int sdhci_generic_request(device_t brdev, device_t reqdev,
439 struct mmc_request *req);
440 int sdhci_generic_get_ro(device_t brdev, device_t reqdev);
441 int sdhci_generic_acquire_host(device_t brdev, device_t reqdev);
442 int sdhci_generic_release_host(device_t brdev, device_t reqdev);
443 void sdhci_generic_intr(struct sdhci_slot *slot);
444 uint32_t sdhci_generic_min_freq(device_t brdev, struct sdhci_slot *slot);
445 bool sdhci_generic_get_card_present(device_t brdev, struct sdhci_slot *slot);
446 void sdhci_generic_set_uhs_timing(device_t brdev, struct sdhci_slot *slot);
447 void sdhci_handle_card_present(struct sdhci_slot *slot, bool is_present);
449 #define SDHCI_VERSION 2
451 #define SDHCI_DEPEND(name) \
452 MODULE_DEPEND(name, sdhci, SDHCI_VERSION, SDHCI_VERSION, SDHCI_VERSION);
454 #endif /* __SDHCI_H__ */