1 /*- 2 * Copyright (c) 2008 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef __SDHCI_H__ 29 #define __SDHCI_H__ 30 31 #define DMA_BLOCK_SIZE 4096 32 #define DMA_BOUNDARY 0 /* DMA reload every 4K */ 33 34 /* Controller doesn't honor resets unless we touch the clock register */ 35 #define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0) 36 /* Controller really supports DMA */ 37 #define SDHCI_QUIRK_FORCE_DMA (1<<1) 38 /* Controller has unusable DMA engine */ 39 #define SDHCI_QUIRK_BROKEN_DMA (1<<2) 40 /* Controller doesn't like to be reset when there is no card inserted. */ 41 #define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<3) 42 /* Controller has flaky internal state so reset it on each ios change */ 43 #define SDHCI_QUIRK_RESET_ON_IOS (1<<4) 44 /* Controller can only DMA chunk sizes that are a multiple of 32 bits */ 45 #define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<5) 46 /* Controller needs to be reset after each request to stay stable */ 47 #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<6) 48 /* Controller has an off-by-one issue with timeout value */ 49 #define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1<<7) 50 /* Controller has broken read timings */ 51 #define SDHCI_QUIRK_BROKEN_TIMINGS (1<<8) 52 /* Controller needs lowered frequency */ 53 #define SDHCI_QUIRK_LOWER_FREQUENCY (1<<9) 54 /* Data timeout is invalid, should use SD clock */ 55 #define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK (1<<10) 56 /* Timeout value is invalid, should be overriden */ 57 #define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<11) 58 /* SDHCI_CAPABILITIES is invalid */ 59 #define SDHCI_QUIRK_MISSING_CAPS (1<<12) 60 /* Hardware shifts the 136-bit response, don't do it in software. */ 61 #define SDHCI_QUIRK_DONT_SHIFT_RESPONSE (1<<13) 62 63 /* 64 * Controller registers 65 */ 66 #define SDHCI_DMA_ADDRESS 0x00 67 68 #define SDHCI_BLOCK_SIZE 0x04 69 #define SDHCI_MAKE_BLKSZ(dma, blksz) (((dma & 0x7) << 12) | (blksz & 0xFFF)) 70 71 #define SDHCI_BLOCK_COUNT 0x06 72 73 #define SDHCI_ARGUMENT 0x08 74 75 #define SDHCI_TRANSFER_MODE 0x0C 76 #define SDHCI_TRNS_DMA 0x01 77 #define SDHCI_TRNS_BLK_CNT_EN 0x02 78 #define SDHCI_TRNS_ACMD12 0x04 79 #define SDHCI_TRNS_READ 0x10 80 #define SDHCI_TRNS_MULTI 0x20 81 82 #define SDHCI_COMMAND_FLAGS 0x0E 83 #define SDHCI_CMD_RESP_NONE 0x00 84 #define SDHCI_CMD_RESP_LONG 0x01 85 #define SDHCI_CMD_RESP_SHORT 0x02 86 #define SDHCI_CMD_RESP_SHORT_BUSY 0x03 87 #define SDHCI_CMD_RESP_MASK 0x03 88 #define SDHCI_CMD_CRC 0x08 89 #define SDHCI_CMD_INDEX 0x10 90 #define SDHCI_CMD_DATA 0x20 91 #define SDHCI_CMD_TYPE_NORMAL 0x00 92 #define SDHCI_CMD_TYPE_SUSPEND 0x40 93 #define SDHCI_CMD_TYPE_RESUME 0x80 94 #define SDHCI_CMD_TYPE_ABORT 0xc0 95 #define SDHCI_CMD_TYPE_MASK 0xc0 96 97 #define SDHCI_COMMAND 0x0F 98 99 #define SDHCI_RESPONSE 0x10 100 101 #define SDHCI_BUFFER 0x20 102 103 #define SDHCI_PRESENT_STATE 0x24 104 #define SDHCI_CMD_INHIBIT 0x00000001 105 #define SDHCI_DAT_INHIBIT 0x00000002 106 #define SDHCI_DAT_ACTIVE 0x00000004 107 #define SDHCI_RETUNE_REQUEST 0x00000008 108 #define SDHCI_DOING_WRITE 0x00000100 109 #define SDHCI_DOING_READ 0x00000200 110 #define SDHCI_SPACE_AVAILABLE 0x00000400 111 #define SDHCI_DATA_AVAILABLE 0x00000800 112 #define SDHCI_CARD_PRESENT 0x00010000 113 #define SDHCI_CARD_STABLE 0x00020000 114 #define SDHCI_CARD_PIN 0x00040000 115 #define SDHCI_WRITE_PROTECT 0x00080000 116 #define SDHCI_STATE_DAT_MASK 0x00f00000 117 #define SDHCI_STATE_CMD 0x01000000 118 119 #define SDHCI_HOST_CONTROL 0x28 120 #define SDHCI_CTRL_LED 0x01 121 #define SDHCI_CTRL_4BITBUS 0x02 122 #define SDHCI_CTRL_HISPD 0x04 123 #define SDHCI_CTRL_SDMA 0x08 124 #define SDHCI_CTRL_ADMA2 0x10 125 #define SDHCI_CTRL_ADMA264 0x18 126 #define SDHCI_CTRL_DMA_MASK 0x18 127 #define SDHCI_CTRL_8BITBUS 0x20 128 #define SDHCI_CTRL_CARD_DET 0x40 129 #define SDHCI_CTRL_FORCE_CARD 0x80 130 131 #define SDHCI_POWER_CONTROL 0x29 132 #define SDHCI_POWER_ON 0x01 133 #define SDHCI_POWER_180 0x0A 134 #define SDHCI_POWER_300 0x0C 135 #define SDHCI_POWER_330 0x0E 136 137 #define SDHCI_BLOCK_GAP_CONTROL 0x2A 138 139 #define SDHCI_WAKE_UP_CONTROL 0x2B 140 141 #define SDHCI_CLOCK_CONTROL 0x2C 142 #define SDHCI_DIVIDER_MASK 0xff 143 #define SDHCI_DIVIDER_MASK_LEN 8 144 #define SDHCI_DIVIDER_SHIFT 8 145 #define SDHCI_DIVIDER_HI_MASK 3 146 #define SDHCI_DIVIDER_HI_SHIFT 6 147 #define SDHCI_CLOCK_CARD_EN 0x0004 148 #define SDHCI_CLOCK_INT_STABLE 0x0002 149 #define SDHCI_CLOCK_INT_EN 0x0001 150 151 #define SDHCI_TIMEOUT_CONTROL 0x2E 152 153 #define SDHCI_SOFTWARE_RESET 0x2F 154 #define SDHCI_RESET_ALL 0x01 155 #define SDHCI_RESET_CMD 0x02 156 #define SDHCI_RESET_DATA 0x04 157 158 #define SDHCI_INT_STATUS 0x30 159 #define SDHCI_INT_ENABLE 0x34 160 #define SDHCI_SIGNAL_ENABLE 0x38 161 #define SDHCI_INT_RESPONSE 0x00000001 162 #define SDHCI_INT_DATA_END 0x00000002 163 #define SDHCI_INT_BLOCK_GAP 0x00000004 164 #define SDHCI_INT_DMA_END 0x00000008 165 #define SDHCI_INT_SPACE_AVAIL 0x00000010 166 #define SDHCI_INT_DATA_AVAIL 0x00000020 167 #define SDHCI_INT_CARD_INSERT 0x00000040 168 #define SDHCI_INT_CARD_REMOVE 0x00000080 169 #define SDHCI_INT_CARD_INT 0x00000100 170 #define SDHCI_INT_ERROR 0x00008000 171 #define SDHCI_INT_TIMEOUT 0x00010000 172 #define SDHCI_INT_CRC 0x00020000 173 #define SDHCI_INT_END_BIT 0x00040000 174 #define SDHCI_INT_INDEX 0x00080000 175 #define SDHCI_INT_DATA_TIMEOUT 0x00100000 176 #define SDHCI_INT_DATA_CRC 0x00200000 177 #define SDHCI_INT_DATA_END_BIT 0x00400000 178 #define SDHCI_INT_BUS_POWER 0x00800000 179 #define SDHCI_INT_ACMD12ERR 0x01000000 180 #define SDHCI_INT_ADMAERR 0x02000000 181 182 #define SDHCI_INT_NORMAL_MASK 0x00007FFF 183 #define SDHCI_INT_ERROR_MASK 0xFFFF8000 184 185 #define SDHCI_INT_CMD_MASK (SDHCI_INT_RESPONSE | SDHCI_INT_TIMEOUT | \ 186 SDHCI_INT_CRC | SDHCI_INT_END_BIT | SDHCI_INT_INDEX) 187 #define SDHCI_INT_DATA_MASK (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \ 188 SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \ 189 SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \ 190 SDHCI_INT_DATA_END_BIT) 191 192 #define SDHCI_ACMD12_ERR 0x3C 193 194 #define SDHCI_CAPABILITIES 0x40 195 #define SDHCI_TIMEOUT_CLK_MASK 0x0000003F 196 #define SDHCI_TIMEOUT_CLK_SHIFT 0 197 #define SDHCI_TIMEOUT_CLK_UNIT 0x00000080 198 #define SDHCI_CLOCK_BASE_MASK 0x00003F00 199 #define SDHCI_CLOCK_V3_BASE_MASK 0x0000FF00 200 #define SDHCI_CLOCK_BASE_SHIFT 8 201 #define SDHCI_MAX_BLOCK_MASK 0x00030000 202 #define SDHCI_MAX_BLOCK_SHIFT 16 203 #define SDHCI_CAN_DO_8BITBUS 0x00040000 204 #define SDHCI_CAN_DO_ADMA2 0x00080000 205 #define SDHCI_CAN_DO_HISPD 0x00200000 206 #define SDHCI_CAN_DO_DMA 0x00400000 207 #define SDHCI_CAN_DO_SUSPEND 0x00800000 208 #define SDHCI_CAN_VDD_330 0x01000000 209 #define SDHCI_CAN_VDD_300 0x02000000 210 #define SDHCI_CAN_VDD_180 0x04000000 211 #define SDHCI_CAN_DO_64BIT 0x10000000 212 213 #define SDHCI_MAX_CURRENT 0x48 214 215 #define SDHCI_SLOT_INT_STATUS 0xFC 216 217 #define SDHCI_HOST_VERSION 0xFE 218 #define SDHCI_VENDOR_VER_MASK 0xFF00 219 #define SDHCI_VENDOR_VER_SHIFT 8 220 #define SDHCI_SPEC_VER_MASK 0x00FF 221 #define SDHCI_SPEC_VER_SHIFT 0 222 #define SDHCI_SPEC_100 0 223 #define SDHCI_SPEC_200 1 224 #define SDHCI_SPEC_300 2 225 226 struct sdhci_slot { 227 u_int quirks; /* Chip specific quirks */ 228 u_int caps; /* Override SDHCI_CAPABILITIES */ 229 device_t bus; /* Bus device */ 230 device_t dev; /* Slot device */ 231 u_char num; /* Slot number */ 232 u_char opt; /* Slot options */ 233 #define SDHCI_HAVE_DMA 1 234 #define SDHCI_PLATFORM_TRANSFER 2 235 u_char version; 236 uint32_t max_clk; /* Max possible freq */ 237 uint32_t timeout_clk; /* Timeout freq */ 238 bus_dma_tag_t dmatag; 239 bus_dmamap_t dmamap; 240 u_char *dmamem; 241 bus_addr_t paddr; /* DMA buffer address */ 242 struct task card_task; /* Card presence check task */ 243 struct callout card_callout; /* Card insert delay callout */ 244 struct callout timeout_callout;/* Card command/data response timeout */ 245 struct mmc_host host; /* Host parameters */ 246 struct mmc_request *req; /* Current request */ 247 struct mmc_command *curcmd; /* Current command of current request */ 248 249 uint32_t intmask; /* Current interrupt mask */ 250 uint32_t clock; /* Current clock freq. */ 251 size_t offset; /* Data buffer offset */ 252 uint8_t hostctrl; /* Current host control register */ 253 u_char power; /* Current power */ 254 u_char bus_busy; /* Bus busy status */ 255 u_char cmd_done; /* CMD command part done flag */ 256 u_char data_done; /* DAT command part done flag */ 257 u_char flags; /* Request execution flags */ 258 #define CMD_STARTED 1 259 #define STOP_STARTED 2 260 #define SDHCI_USE_DMA 4 /* Use DMA for this req. */ 261 #define PLATFORM_DATA_STARTED 8 /* Data transfer is handled by platform */ 262 struct mtx mtx; /* Slot mutex */ 263 }; 264 265 int sdhci_generic_read_ivar(device_t bus, device_t child, int which, uintptr_t *result); 266 int sdhci_generic_write_ivar(device_t bus, device_t child, int which, uintptr_t value); 267 int sdhci_init_slot(device_t dev, struct sdhci_slot *slot, int num); 268 void sdhci_start_slot(struct sdhci_slot *slot); 269 /* performs generic clean-up for platform transfers */ 270 void sdhci_finish_data(struct sdhci_slot *slot); 271 int sdhci_cleanup_slot(struct sdhci_slot *slot); 272 int sdhci_generic_suspend(struct sdhci_slot *slot); 273 int sdhci_generic_resume(struct sdhci_slot *slot); 274 int sdhci_generic_update_ios(device_t brdev, device_t reqdev); 275 int sdhci_generic_request(device_t brdev, device_t reqdev, struct mmc_request *req); 276 int sdhci_generic_get_ro(device_t brdev, device_t reqdev); 277 int sdhci_generic_acquire_host(device_t brdev, device_t reqdev); 278 int sdhci_generic_release_host(device_t brdev, device_t reqdev); 279 void sdhci_generic_intr(struct sdhci_slot *slot); 280 uint32_t sdhci_generic_min_freq(device_t brdev, struct sdhci_slot *slot); 281 282 #endif /* __SDHCI_H__ */ 283