ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1 | /* |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 2 | * SD Memory Card emulation as defined in the "SD Memory Card Physical |
| 3 | * layer specification, Version 1.10." |
| 4 | * |
| 5 | * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org> |
| 6 | * Copyright (c) 2007 CodeSourcery |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in |
| 16 | * the documentation and/or other materials provided with the |
| 17 | * distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' |
| 20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 21 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
| 22 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR |
| 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 27 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
pbrook | 87ecb68 | 2007-11-17 17:14:51 +0000 | [diff] [blame] | 32 | #include "hw.h" |
Paolo Bonzini | 737e150 | 2012-12-17 18:19:44 +0100 | [diff] [blame] | 33 | #include "block/block.h" |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 34 | #include "sd.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 35 | #include "qemu/bitmap.h" |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 36 | |
| 37 | //#define DEBUG_SD 1 |
| 38 | |
| 39 | #ifdef DEBUG_SD |
Blue Swirl | 001faf3 | 2009-05-13 17:53:17 +0000 | [diff] [blame] | 40 | #define DPRINTF(fmt, ...) \ |
| 41 | do { fprintf(stderr, "SD: " fmt , ## __VA_ARGS__); } while (0) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 42 | #else |
Blue Swirl | 001faf3 | 2009-05-13 17:53:17 +0000 | [diff] [blame] | 43 | #define DPRINTF(fmt, ...) do {} while(0) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 44 | #endif |
| 45 | |
| 46 | typedef enum { |
| 47 | sd_r0 = 0, /* no response */ |
| 48 | sd_r1, /* normal response command */ |
| 49 | sd_r2_i, /* CID register */ |
| 50 | sd_r2_s, /* CSD register */ |
| 51 | sd_r3, /* OCR register */ |
| 52 | sd_r6 = 6, /* Published RCA response */ |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 53 | sd_r7, /* Operating voltage */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 54 | sd_r1b = -1, |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 55 | sd_illegal = -2, |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 56 | } sd_rsp_type_t; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 57 | |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 58 | enum SDCardModes { |
| 59 | sd_inactive, |
| 60 | sd_card_identification_mode, |
| 61 | sd_data_transfer_mode, |
| 62 | }; |
| 63 | |
| 64 | enum SDCardStates { |
| 65 | sd_inactive_state = -1, |
| 66 | sd_idle_state = 0, |
| 67 | sd_ready_state, |
| 68 | sd_identification_state, |
| 69 | sd_standby_state, |
| 70 | sd_transfer_state, |
| 71 | sd_sendingdata_state, |
| 72 | sd_receivingdata_state, |
| 73 | sd_programming_state, |
| 74 | sd_disconnect_state, |
| 75 | }; |
| 76 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 77 | struct SDState { |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 78 | uint32_t mode; /* current card mode, one of SDCardModes */ |
| 79 | int32_t state; /* current card state, one of SDCardStates */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 80 | uint32_t ocr; |
| 81 | uint8_t scr[8]; |
| 82 | uint8_t cid[16]; |
| 83 | uint8_t csd[16]; |
| 84 | uint16_t rca; |
| 85 | uint32_t card_status; |
| 86 | uint8_t sd_status[64]; |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 87 | uint32_t vhs; |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 88 | bool wp_switch; |
Mitsyanko Igor | a9c0183 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 89 | unsigned long *wp_groups; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 90 | int32_t wpgrps_size; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 91 | uint64_t size; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 92 | uint32_t blk_len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 93 | uint32_t erase_start; |
| 94 | uint32_t erase_end; |
| 95 | uint8_t pwd[16]; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 96 | uint32_t pwd_len; |
| 97 | uint8_t function_group[6]; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 98 | |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 99 | bool spi; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 100 | uint8_t current_cmd; |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 101 | /* True if we will handle the next command as an ACMD. Note that this does |
| 102 | * *not* track the APP_CMD status bit! |
| 103 | */ |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 104 | bool expecting_acmd; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 105 | uint32_t blk_written; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 106 | uint64_t data_start; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 107 | uint32_t data_offset; |
| 108 | uint8_t data[512]; |
balrog | 02ce600 | 2007-11-17 14:34:44 +0000 | [diff] [blame] | 109 | qemu_irq readonly_cb; |
| 110 | qemu_irq inserted_cb; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 111 | BlockDriverState *bdrv; |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 112 | uint8_t *buf; |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 113 | |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 114 | bool enable; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 115 | }; |
| 116 | |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 117 | static void sd_set_mode(SDState *sd) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 118 | { |
| 119 | switch (sd->state) { |
| 120 | case sd_inactive_state: |
| 121 | sd->mode = sd_inactive; |
| 122 | break; |
| 123 | |
| 124 | case sd_idle_state: |
| 125 | case sd_ready_state: |
| 126 | case sd_identification_state: |
| 127 | sd->mode = sd_card_identification_mode; |
| 128 | break; |
| 129 | |
| 130 | case sd_standby_state: |
| 131 | case sd_transfer_state: |
| 132 | case sd_sendingdata_state: |
| 133 | case sd_receivingdata_state: |
| 134 | case sd_programming_state: |
| 135 | case sd_disconnect_state: |
| 136 | sd->mode = sd_data_transfer_mode; |
| 137 | break; |
| 138 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 139 | } |
| 140 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 141 | static const sd_cmd_type_t sd_cmd_type[64] = { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 142 | sd_bc, sd_none, sd_bcr, sd_bcr, sd_none, sd_none, sd_none, sd_ac, |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 143 | sd_bcr, sd_ac, sd_ac, sd_adtc, sd_ac, sd_ac, sd_none, sd_ac, |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 144 | sd_ac, sd_adtc, sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 145 | sd_adtc, sd_adtc, sd_adtc, sd_adtc, sd_ac, sd_ac, sd_adtc, sd_none, |
| 146 | sd_ac, sd_ac, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_none, |
| 147 | sd_none, sd_none, sd_bc, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 148 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_ac, |
| 149 | sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 150 | }; |
| 151 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 152 | static const sd_cmd_type_t sd_acmd_type[64] = { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 153 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_none, |
| 154 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_adtc, sd_none, sd_none, |
| 155 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_adtc, sd_ac, |
| 156 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 157 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 158 | sd_none, sd_bcr, sd_ac, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 159 | sd_none, sd_none, sd_none, sd_adtc, sd_none, sd_none, sd_none, sd_none, |
| 160 | sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, |
| 161 | }; |
| 162 | |
| 163 | static const int sd_cmd_class[64] = { |
| 164 | 0, 0, 0, 0, 0, 9, 10, 0, 0, 0, 0, 1, 0, 0, 0, 0, |
| 165 | 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 6, 6, 6, 6, |
| 166 | 5, 5, 10, 10, 10, 10, 5, 9, 9, 9, 7, 7, 7, 7, 7, 7, |
| 167 | 7, 7, 10, 7, 9, 9, 9, 8, 8, 10, 8, 8, 8, 8, 8, 8, |
| 168 | }; |
| 169 | |
| 170 | static uint8_t sd_crc7(void *message, size_t width) |
| 171 | { |
| 172 | int i, bit; |
| 173 | uint8_t shift_reg = 0x00; |
| 174 | uint8_t *msg = (uint8_t *) message; |
| 175 | |
| 176 | for (i = 0; i < width; i ++, msg ++) |
| 177 | for (bit = 7; bit >= 0; bit --) { |
| 178 | shift_reg <<= 1; |
| 179 | if ((shift_reg >> 7) ^ ((*msg >> bit) & 1)) |
| 180 | shift_reg ^= 0x89; |
| 181 | } |
| 182 | |
| 183 | return shift_reg; |
| 184 | } |
| 185 | |
| 186 | static uint16_t sd_crc16(void *message, size_t width) |
| 187 | { |
| 188 | int i, bit; |
| 189 | uint16_t shift_reg = 0x0000; |
| 190 | uint16_t *msg = (uint16_t *) message; |
| 191 | width <<= 1; |
| 192 | |
| 193 | for (i = 0; i < width; i ++, msg ++) |
| 194 | for (bit = 15; bit >= 0; bit --) { |
| 195 | shift_reg <<= 1; |
| 196 | if ((shift_reg >> 15) ^ ((*msg >> bit) & 1)) |
| 197 | shift_reg ^= 0x1011; |
| 198 | } |
| 199 | |
| 200 | return shift_reg; |
| 201 | } |
| 202 | |
| 203 | static void sd_set_ocr(SDState *sd) |
| 204 | { |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 205 | /* All voltages OK, card power-up OK, Standard Capacity SD Memory Card */ |
aurel32 | 829ef7b | 2009-03-07 22:10:40 +0000 | [diff] [blame] | 206 | sd->ocr = 0x80ffff00; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | static void sd_set_scr(SDState *sd) |
| 210 | { |
| 211 | sd->scr[0] = 0x00; /* SCR Structure */ |
| 212 | sd->scr[1] = 0x2f; /* SD Security Support */ |
| 213 | sd->scr[2] = 0x00; |
| 214 | sd->scr[3] = 0x00; |
| 215 | sd->scr[4] = 0x00; |
| 216 | sd->scr[5] = 0x00; |
| 217 | sd->scr[6] = 0x00; |
| 218 | sd->scr[7] = 0x00; |
| 219 | } |
| 220 | |
| 221 | #define MID 0xaa |
| 222 | #define OID "XY" |
| 223 | #define PNM "QEMU!" |
| 224 | #define PRV 0x01 |
| 225 | #define MDT_YR 2006 |
| 226 | #define MDT_MON 2 |
| 227 | |
| 228 | static void sd_set_cid(SDState *sd) |
| 229 | { |
| 230 | sd->cid[0] = MID; /* Fake card manufacturer ID (MID) */ |
| 231 | sd->cid[1] = OID[0]; /* OEM/Application ID (OID) */ |
| 232 | sd->cid[2] = OID[1]; |
| 233 | sd->cid[3] = PNM[0]; /* Fake product name (PNM) */ |
| 234 | sd->cid[4] = PNM[1]; |
| 235 | sd->cid[5] = PNM[2]; |
| 236 | sd->cid[6] = PNM[3]; |
| 237 | sd->cid[7] = PNM[4]; |
| 238 | sd->cid[8] = PRV; /* Fake product revision (PRV) */ |
| 239 | sd->cid[9] = 0xde; /* Fake serial number (PSN) */ |
| 240 | sd->cid[10] = 0xad; |
| 241 | sd->cid[11] = 0xbe; |
| 242 | sd->cid[12] = 0xef; |
| 243 | sd->cid[13] = 0x00 | /* Manufacture date (MDT) */ |
| 244 | ((MDT_YR - 2000) / 10); |
| 245 | sd->cid[14] = ((MDT_YR % 10) << 4) | MDT_MON; |
| 246 | sd->cid[15] = (sd_crc7(sd->cid, 15) << 1) | 1; |
| 247 | } |
| 248 | |
| 249 | #define HWBLOCK_SHIFT 9 /* 512 bytes */ |
| 250 | #define SECTOR_SHIFT 5 /* 16 kilobytes */ |
| 251 | #define WPGROUP_SHIFT 7 /* 2 megs */ |
| 252 | #define CMULT_SHIFT 9 /* 512 times HWBLOCK_SIZE */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 253 | #define WPGROUP_SIZE (1 << (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT)) |
| 254 | |
| 255 | static const uint8_t sd_csd_rw_mask[16] = { |
| 256 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 257 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xfe, |
| 258 | }; |
| 259 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 260 | static void sd_set_csd(SDState *sd, uint64_t size) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 261 | { |
| 262 | uint32_t csize = (size >> (CMULT_SHIFT + HWBLOCK_SHIFT)) - 1; |
| 263 | uint32_t sectsize = (1 << (SECTOR_SHIFT + 1)) - 1; |
| 264 | uint32_t wpsize = (1 << (WPGROUP_SHIFT + 1)) - 1; |
| 265 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 266 | if (size <= 0x40000000) { /* Standard Capacity SD */ |
| 267 | sd->csd[0] = 0x00; /* CSD structure */ |
| 268 | sd->csd[1] = 0x26; /* Data read access-time-1 */ |
| 269 | sd->csd[2] = 0x00; /* Data read access-time-2 */ |
| 270 | sd->csd[3] = 0x5a; /* Max. data transfer rate */ |
| 271 | sd->csd[4] = 0x5f; /* Card Command Classes */ |
| 272 | sd->csd[5] = 0x50 | /* Max. read data block length */ |
| 273 | HWBLOCK_SHIFT; |
| 274 | sd->csd[6] = 0xe0 | /* Partial block for read allowed */ |
| 275 | ((csize >> 10) & 0x03); |
| 276 | sd->csd[7] = 0x00 | /* Device size */ |
| 277 | ((csize >> 2) & 0xff); |
| 278 | sd->csd[8] = 0x3f | /* Max. read current */ |
| 279 | ((csize << 6) & 0xc0); |
| 280 | sd->csd[9] = 0xfc | /* Max. write current */ |
| 281 | ((CMULT_SHIFT - 2) >> 1); |
| 282 | sd->csd[10] = 0x40 | /* Erase sector size */ |
| 283 | (((CMULT_SHIFT - 2) << 7) & 0x80) | (sectsize >> 1); |
| 284 | sd->csd[11] = 0x00 | /* Write protect group size */ |
| 285 | ((sectsize << 7) & 0x80) | wpsize; |
| 286 | sd->csd[12] = 0x90 | /* Write speed factor */ |
| 287 | (HWBLOCK_SHIFT >> 2); |
| 288 | sd->csd[13] = 0x20 | /* Max. write data block length */ |
| 289 | ((HWBLOCK_SHIFT << 6) & 0xc0); |
| 290 | sd->csd[14] = 0x00; /* File format group */ |
| 291 | sd->csd[15] = (sd_crc7(sd->csd, 15) << 1) | 1; |
| 292 | } else { /* SDHC */ |
| 293 | size /= 512 * 1024; |
| 294 | size -= 1; |
| 295 | sd->csd[0] = 0x40; |
| 296 | sd->csd[1] = 0x0e; |
| 297 | sd->csd[2] = 0x00; |
| 298 | sd->csd[3] = 0x32; |
| 299 | sd->csd[4] = 0x5b; |
| 300 | sd->csd[5] = 0x59; |
| 301 | sd->csd[6] = 0x00; |
| 302 | sd->csd[7] = (size >> 16) & 0xff; |
| 303 | sd->csd[8] = (size >> 8) & 0xff; |
| 304 | sd->csd[9] = (size & 0xff); |
| 305 | sd->csd[10] = 0x7f; |
| 306 | sd->csd[11] = 0x80; |
| 307 | sd->csd[12] = 0x0a; |
| 308 | sd->csd[13] = 0x40; |
| 309 | sd->csd[14] = 0x00; |
| 310 | sd->csd[15] = 0x00; |
| 311 | sd->ocr |= 1 << 30; /* High Capacity SD Memort Card */ |
| 312 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 313 | } |
| 314 | |
| 315 | static void sd_set_rca(SDState *sd) |
| 316 | { |
| 317 | sd->rca += 0x4567; |
| 318 | } |
| 319 | |
Peter Maydell | b8d334c | 2011-12-18 21:37:52 +0100 | [diff] [blame] | 320 | /* Card status bits, split by clear condition: |
| 321 | * A : According to the card current state |
| 322 | * B : Always related to the previous command |
| 323 | * C : Cleared by read |
| 324 | */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 325 | #define CARD_STATUS_A 0x02004100 |
| 326 | #define CARD_STATUS_B 0x00c01e00 |
| 327 | #define CARD_STATUS_C 0xfd39a028 |
| 328 | |
| 329 | static void sd_set_cardstatus(SDState *sd) |
| 330 | { |
| 331 | sd->card_status = 0x00000100; |
| 332 | } |
| 333 | |
| 334 | static void sd_set_sdstatus(SDState *sd) |
| 335 | { |
| 336 | memset(sd->sd_status, 0, 64); |
| 337 | } |
| 338 | |
Paul Brook | bc24a22 | 2009-05-10 01:44:56 +0100 | [diff] [blame] | 339 | static int sd_req_crc_validate(SDRequest *req) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 340 | { |
| 341 | uint8_t buffer[5]; |
| 342 | buffer[0] = 0x40 | req->cmd; |
| 343 | buffer[1] = (req->arg >> 24) & 0xff; |
| 344 | buffer[2] = (req->arg >> 16) & 0xff; |
| 345 | buffer[3] = (req->arg >> 8) & 0xff; |
| 346 | buffer[4] = (req->arg >> 0) & 0xff; |
| 347 | return 0; |
| 348 | return sd_crc7(buffer, 5) != req->crc; /* TODO */ |
| 349 | } |
| 350 | |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 351 | static void sd_response_r1_make(SDState *sd, uint8_t *response) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 352 | { |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 353 | uint32_t status = sd->card_status; |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 354 | /* Clear the "clear on read" status bits */ |
| 355 | sd->card_status &= ~CARD_STATUS_C; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 356 | |
| 357 | response[0] = (status >> 24) & 0xff; |
| 358 | response[1] = (status >> 16) & 0xff; |
| 359 | response[2] = (status >> 8) & 0xff; |
| 360 | response[3] = (status >> 0) & 0xff; |
| 361 | } |
| 362 | |
pbrook | 9596ebb | 2007-11-18 01:44:38 +0000 | [diff] [blame] | 363 | static void sd_response_r3_make(SDState *sd, uint8_t *response) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 364 | { |
| 365 | response[0] = (sd->ocr >> 24) & 0xff; |
| 366 | response[1] = (sd->ocr >> 16) & 0xff; |
| 367 | response[2] = (sd->ocr >> 8) & 0xff; |
| 368 | response[3] = (sd->ocr >> 0) & 0xff; |
| 369 | } |
| 370 | |
pbrook | 9596ebb | 2007-11-18 01:44:38 +0000 | [diff] [blame] | 371 | static void sd_response_r6_make(SDState *sd, uint8_t *response) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 372 | { |
| 373 | uint16_t arg; |
| 374 | uint16_t status; |
| 375 | |
| 376 | arg = sd->rca; |
| 377 | status = ((sd->card_status >> 8) & 0xc000) | |
| 378 | ((sd->card_status >> 6) & 0x2000) | |
| 379 | (sd->card_status & 0x1fff); |
Peter Maydell | fcfa935 | 2011-12-18 21:38:00 +0100 | [diff] [blame] | 380 | sd->card_status &= ~(CARD_STATUS_C & 0xc81fff); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 381 | |
| 382 | response[0] = (arg >> 8) & 0xff; |
| 383 | response[1] = arg & 0xff; |
| 384 | response[2] = (status >> 8) & 0xff; |
| 385 | response[3] = status & 0xff; |
| 386 | } |
| 387 | |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 388 | static void sd_response_r7_make(SDState *sd, uint8_t *response) |
| 389 | { |
| 390 | response[0] = (sd->vhs >> 24) & 0xff; |
| 391 | response[1] = (sd->vhs >> 16) & 0xff; |
| 392 | response[2] = (sd->vhs >> 8) & 0xff; |
| 393 | response[3] = (sd->vhs >> 0) & 0xff; |
| 394 | } |
| 395 | |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 396 | static inline uint64_t sd_addr_to_wpnum(uint64_t addr) |
| 397 | { |
| 398 | return addr >> (HWBLOCK_SHIFT + SECTOR_SHIFT + WPGROUP_SHIFT); |
| 399 | } |
| 400 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 401 | static void sd_reset(SDState *sd, BlockDriverState *bdrv) |
| 402 | { |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 403 | uint64_t size; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 404 | uint64_t sect; |
| 405 | |
Paul Brook | 03f311e | 2009-05-03 16:52:16 +0100 | [diff] [blame] | 406 | if (bdrv) { |
| 407 | bdrv_get_geometry(bdrv, §); |
| 408 | } else { |
| 409 | sect = 0; |
| 410 | } |
Vincent Palatin | 5e37141 | 2011-07-25 16:19:05 -0700 | [diff] [blame] | 411 | size = sect << 9; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 412 | |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 413 | sect = sd_addr_to_wpnum(size) + 1; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 414 | |
| 415 | sd->state = sd_idle_state; |
| 416 | sd->rca = 0x0000; |
| 417 | sd_set_ocr(sd); |
| 418 | sd_set_scr(sd); |
| 419 | sd_set_cid(sd); |
| 420 | sd_set_csd(sd, size); |
| 421 | sd_set_cardstatus(sd); |
| 422 | sd_set_sdstatus(sd); |
| 423 | |
| 424 | sd->bdrv = bdrv; |
| 425 | |
pbrook | 257514d | 2007-11-17 15:32:38 +0000 | [diff] [blame] | 426 | if (sd->wp_groups) |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 427 | g_free(sd->wp_groups); |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 428 | sd->wp_switch = bdrv ? bdrv_is_read_only(bdrv) : false; |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 429 | sd->wpgrps_size = sect; |
| 430 | sd->wp_groups = bitmap_new(sd->wpgrps_size); |
| 431 | memset(sd->function_group, 0, sizeof(sd->function_group)); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 432 | sd->erase_start = 0; |
| 433 | sd->erase_end = 0; |
| 434 | sd->size = size; |
| 435 | sd->blk_len = 0x200; |
| 436 | sd->pwd_len = 0; |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 437 | sd->expecting_acmd = false; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 438 | } |
| 439 | |
Markus Armbruster | 7d4b4ba | 2011-09-06 18:58:59 +0200 | [diff] [blame] | 440 | static void sd_cardchange(void *opaque, bool load) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 441 | { |
| 442 | SDState *sd = opaque; |
Christoph Hellwig | db97ee6 | 2011-01-24 13:32:41 +0100 | [diff] [blame] | 443 | |
balrog | 02ce600 | 2007-11-17 14:34:44 +0000 | [diff] [blame] | 444 | qemu_set_irq(sd->inserted_cb, bdrv_is_inserted(sd->bdrv)); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 445 | if (bdrv_is_inserted(sd->bdrv)) { |
| 446 | sd_reset(sd, sd->bdrv); |
pbrook | 257514d | 2007-11-17 15:32:38 +0000 | [diff] [blame] | 447 | qemu_set_irq(sd->readonly_cb, sd->wp_switch); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 448 | } |
| 449 | } |
| 450 | |
Markus Armbruster | 0e49de5 | 2011-08-03 15:07:41 +0200 | [diff] [blame] | 451 | static const BlockDevOps sd_block_ops = { |
Markus Armbruster | 145feb1 | 2011-08-03 15:07:42 +0200 | [diff] [blame] | 452 | .change_media_cb = sd_cardchange, |
Markus Armbruster | 0e49de5 | 2011-08-03 15:07:41 +0200 | [diff] [blame] | 453 | }; |
| 454 | |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 455 | static const VMStateDescription sd_vmstate = { |
| 456 | .name = "sd-card", |
| 457 | .version_id = 1, |
| 458 | .minimum_version_id = 1, |
| 459 | .fields = (VMStateField[]) { |
| 460 | VMSTATE_UINT32(mode, SDState), |
| 461 | VMSTATE_INT32(state, SDState), |
| 462 | VMSTATE_UINT8_ARRAY(cid, SDState, 16), |
| 463 | VMSTATE_UINT8_ARRAY(csd, SDState, 16), |
| 464 | VMSTATE_UINT16(rca, SDState), |
| 465 | VMSTATE_UINT32(card_status, SDState), |
| 466 | VMSTATE_PARTIAL_BUFFER(sd_status, SDState, 1), |
| 467 | VMSTATE_UINT32(vhs, SDState), |
| 468 | VMSTATE_BITMAP(wp_groups, SDState, 0, wpgrps_size), |
| 469 | VMSTATE_UINT32(blk_len, SDState), |
| 470 | VMSTATE_UINT32(erase_start, SDState), |
| 471 | VMSTATE_UINT32(erase_end, SDState), |
| 472 | VMSTATE_UINT8_ARRAY(pwd, SDState, 16), |
| 473 | VMSTATE_UINT32(pwd_len, SDState), |
| 474 | VMSTATE_UINT8_ARRAY(function_group, SDState, 6), |
| 475 | VMSTATE_UINT8(current_cmd, SDState), |
| 476 | VMSTATE_BOOL(expecting_acmd, SDState), |
| 477 | VMSTATE_UINT32(blk_written, SDState), |
| 478 | VMSTATE_UINT64(data_start, SDState), |
| 479 | VMSTATE_UINT32(data_offset, SDState), |
| 480 | VMSTATE_UINT8_ARRAY(data, SDState, 512), |
| 481 | VMSTATE_BUFFER_UNSAFE(buf, SDState, 1, 512), |
| 482 | VMSTATE_BOOL(enable, SDState), |
| 483 | VMSTATE_END_OF_LIST() |
| 484 | } |
| 485 | }; |
| 486 | |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 487 | /* We do not model the chip select pin, so allow the board to select |
balrog | 8ef6367 | 2007-11-25 18:46:17 +0000 | [diff] [blame] | 488 | whether card should be in SSI or MMC/SD mode. It is also up to the |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 489 | board to ensure that ssi transfers only occur when the chip select |
| 490 | is asserted. */ |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 491 | SDState *sd_init(BlockDriverState *bs, bool is_spi) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 492 | { |
| 493 | SDState *sd; |
| 494 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 495 | sd = (SDState *) g_malloc0(sizeof(SDState)); |
Christoph Hellwig | 72aef73 | 2010-09-12 23:42:56 +0200 | [diff] [blame] | 496 | sd->buf = qemu_blockalign(bs, 512); |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 497 | sd->spi = is_spi; |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 498 | sd->enable = true; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 499 | sd_reset(sd, bs); |
Paul Brook | 03f311e | 2009-05-03 16:52:16 +0100 | [diff] [blame] | 500 | if (sd->bdrv) { |
Markus Armbruster | fa879d6 | 2011-08-03 15:07:40 +0200 | [diff] [blame] | 501 | bdrv_attach_dev_nofail(sd->bdrv, sd); |
Markus Armbruster | 0e49de5 | 2011-08-03 15:07:41 +0200 | [diff] [blame] | 502 | bdrv_set_dev_ops(sd->bdrv, &sd_block_ops, sd); |
Paul Brook | 03f311e | 2009-05-03 16:52:16 +0100 | [diff] [blame] | 503 | } |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 504 | vmstate_register(NULL, -1, &sd_vmstate, sd); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 505 | return sd; |
| 506 | } |
| 507 | |
balrog | 02ce600 | 2007-11-17 14:34:44 +0000 | [diff] [blame] | 508 | void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 509 | { |
balrog | 02ce600 | 2007-11-17 14:34:44 +0000 | [diff] [blame] | 510 | sd->readonly_cb = readonly; |
| 511 | sd->inserted_cb = insert; |
Aurelien Jarno | 0d2e91c | 2011-03-06 20:02:40 +0100 | [diff] [blame] | 512 | qemu_set_irq(readonly, sd->bdrv ? bdrv_is_read_only(sd->bdrv) : 0); |
| 513 | qemu_set_irq(insert, sd->bdrv ? bdrv_is_inserted(sd->bdrv) : 0); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 514 | } |
| 515 | |
| 516 | static void sd_erase(SDState *sd) |
| 517 | { |
Igor Mitsyanko | f2d189d | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 518 | int i; |
| 519 | uint64_t erase_start = sd->erase_start; |
| 520 | uint64_t erase_end = sd->erase_end; |
| 521 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 522 | if (!sd->erase_start || !sd->erase_end) { |
| 523 | sd->card_status |= ERASE_SEQ_ERROR; |
| 524 | return; |
| 525 | } |
| 526 | |
Igor Mitsyanko | f2d189d | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 527 | if (extract32(sd->ocr, OCR_CCS_BITN, 1)) { |
| 528 | /* High capacity memory card: erase units are 512 byte blocks */ |
| 529 | erase_start *= 512; |
| 530 | erase_end *= 512; |
| 531 | } |
| 532 | |
| 533 | erase_start = sd_addr_to_wpnum(erase_start); |
| 534 | erase_end = sd_addr_to_wpnum(erase_end); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 535 | sd->erase_start = 0; |
| 536 | sd->erase_end = 0; |
| 537 | sd->csd[14] |= 0x40; |
| 538 | |
Igor Mitsyanko | f2d189d | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 539 | for (i = erase_start; i <= erase_end; i++) { |
Mitsyanko Igor | a9c0183 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 540 | if (test_bit(i, sd->wp_groups)) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 541 | sd->card_status |= WP_ERASE_SKIP; |
Mitsyanko Igor | a9c0183 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 542 | } |
| 543 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 544 | } |
| 545 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 546 | static uint32_t sd_wpbits(SDState *sd, uint64_t addr) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 547 | { |
| 548 | uint32_t i, wpnum; |
| 549 | uint32_t ret = 0; |
| 550 | |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 551 | wpnum = sd_addr_to_wpnum(addr); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 552 | |
Mitsyanko Igor | a9c0183 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 553 | for (i = 0; i < 32; i++, wpnum++, addr += WPGROUP_SIZE) { |
| 554 | if (addr < sd->size && test_bit(wpnum, sd->wp_groups)) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 555 | ret |= (1 << i); |
Mitsyanko Igor | a9c0183 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 556 | } |
| 557 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 558 | |
| 559 | return ret; |
| 560 | } |
| 561 | |
| 562 | static void sd_function_switch(SDState *sd, uint32_t arg) |
| 563 | { |
| 564 | int i, mode, new_func, crc; |
| 565 | mode = !!(arg & 0x80000000); |
| 566 | |
| 567 | sd->data[0] = 0x00; /* Maximum current consumption */ |
| 568 | sd->data[1] = 0x01; |
| 569 | sd->data[2] = 0x80; /* Supported group 6 functions */ |
| 570 | sd->data[3] = 0x01; |
| 571 | sd->data[4] = 0x80; /* Supported group 5 functions */ |
| 572 | sd->data[5] = 0x01; |
| 573 | sd->data[6] = 0x80; /* Supported group 4 functions */ |
| 574 | sd->data[7] = 0x01; |
| 575 | sd->data[8] = 0x80; /* Supported group 3 functions */ |
| 576 | sd->data[9] = 0x01; |
| 577 | sd->data[10] = 0x80; /* Supported group 2 functions */ |
| 578 | sd->data[11] = 0x43; |
| 579 | sd->data[12] = 0x80; /* Supported group 1 functions */ |
| 580 | sd->data[13] = 0x03; |
| 581 | for (i = 0; i < 6; i ++) { |
| 582 | new_func = (arg >> (i * 4)) & 0x0f; |
| 583 | if (mode && new_func != 0x0f) |
| 584 | sd->function_group[i] = new_func; |
| 585 | sd->data[14 + (i >> 1)] = new_func << ((i * 4) & 4); |
| 586 | } |
| 587 | memset(&sd->data[17], 0, 47); |
| 588 | crc = sd_crc16(sd->data, 64); |
| 589 | sd->data[65] = crc >> 8; |
| 590 | sd->data[66] = crc & 0xff; |
| 591 | } |
| 592 | |
Mitsyanko Igor | 4e8f1be | 2012-08-13 11:04:07 +0100 | [diff] [blame] | 593 | static inline bool sd_wp_addr(SDState *sd, uint64_t addr) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 594 | { |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 595 | return test_bit(sd_addr_to_wpnum(addr), sd->wp_groups); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | static void sd_lock_command(SDState *sd) |
| 599 | { |
| 600 | int erase, lock, clr_pwd, set_pwd, pwd_len; |
| 601 | erase = !!(sd->data[0] & 0x08); |
| 602 | lock = sd->data[0] & 0x04; |
| 603 | clr_pwd = sd->data[0] & 0x02; |
| 604 | set_pwd = sd->data[0] & 0x01; |
| 605 | |
| 606 | if (sd->blk_len > 1) |
| 607 | pwd_len = sd->data[1]; |
| 608 | else |
| 609 | pwd_len = 0; |
| 610 | |
| 611 | if (erase) { |
| 612 | if (!(sd->card_status & CARD_IS_LOCKED) || sd->blk_len > 1 || |
| 613 | set_pwd || clr_pwd || lock || sd->wp_switch || |
| 614 | (sd->csd[14] & 0x20)) { |
| 615 | sd->card_status |= LOCK_UNLOCK_FAILED; |
| 616 | return; |
| 617 | } |
Igor Mitsyanko | 50a5be6 | 2012-10-30 07:45:12 +0000 | [diff] [blame] | 618 | bitmap_zero(sd->wp_groups, sd->wpgrps_size); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 619 | sd->csd[14] &= ~0x10; |
| 620 | sd->card_status &= ~CARD_IS_LOCKED; |
| 621 | sd->pwd_len = 0; |
| 622 | /* Erasing the entire card here! */ |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 623 | fprintf(stderr, "SD: Card force-erased by CMD42\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 624 | return; |
| 625 | } |
| 626 | |
| 627 | if (sd->blk_len < 2 + pwd_len || |
| 628 | pwd_len <= sd->pwd_len || |
| 629 | pwd_len > sd->pwd_len + 16) { |
| 630 | sd->card_status |= LOCK_UNLOCK_FAILED; |
| 631 | return; |
| 632 | } |
| 633 | |
| 634 | if (sd->pwd_len && memcmp(sd->pwd, sd->data + 2, sd->pwd_len)) { |
| 635 | sd->card_status |= LOCK_UNLOCK_FAILED; |
| 636 | return; |
| 637 | } |
| 638 | |
| 639 | pwd_len -= sd->pwd_len; |
| 640 | if ((pwd_len && !set_pwd) || |
| 641 | (clr_pwd && (set_pwd || lock)) || |
| 642 | (lock && !sd->pwd_len && !set_pwd) || |
| 643 | (!set_pwd && !clr_pwd && |
| 644 | (((sd->card_status & CARD_IS_LOCKED) && lock) || |
| 645 | (!(sd->card_status & CARD_IS_LOCKED) && !lock)))) { |
| 646 | sd->card_status |= LOCK_UNLOCK_FAILED; |
| 647 | return; |
| 648 | } |
| 649 | |
| 650 | if (set_pwd) { |
| 651 | memcpy(sd->pwd, sd->data + 2 + sd->pwd_len, pwd_len); |
| 652 | sd->pwd_len = pwd_len; |
| 653 | } |
| 654 | |
| 655 | if (clr_pwd) { |
| 656 | sd->pwd_len = 0; |
| 657 | } |
| 658 | |
| 659 | if (lock) |
| 660 | sd->card_status |= CARD_IS_LOCKED; |
| 661 | else |
| 662 | sd->card_status &= ~CARD_IS_LOCKED; |
| 663 | } |
| 664 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 665 | static sd_rsp_type_t sd_normal_command(SDState *sd, |
Paul Brook | bc24a22 | 2009-05-10 01:44:56 +0100 | [diff] [blame] | 666 | SDRequest req) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 667 | { |
| 668 | uint32_t rca = 0x0000; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 669 | uint64_t addr = (sd->ocr & (1 << 30)) ? (uint64_t) req.arg << 9 : req.arg; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 670 | |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 671 | /* Not interpreting this as an app command */ |
| 672 | sd->card_status &= ~APP_CMD; |
| 673 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 674 | if (sd_cmd_type[req.cmd] == sd_ac || sd_cmd_type[req.cmd] == sd_adtc) |
| 675 | rca = req.arg >> 16; |
| 676 | |
| 677 | DPRINTF("CMD%d 0x%08x state %d\n", req.cmd, req.arg, sd->state); |
| 678 | switch (req.cmd) { |
| 679 | /* Basic commands (Class 0 and Class 1) */ |
| 680 | case 0: /* CMD0: GO_IDLE_STATE */ |
| 681 | switch (sd->state) { |
| 682 | case sd_inactive_state: |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 683 | return sd->spi ? sd_r1 : sd_r0; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 684 | |
| 685 | default: |
| 686 | sd->state = sd_idle_state; |
| 687 | sd_reset(sd, sd->bdrv); |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 688 | return sd->spi ? sd_r1 : sd_r0; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 689 | } |
| 690 | break; |
| 691 | |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 692 | case 1: /* CMD1: SEND_OP_CMD */ |
| 693 | if (!sd->spi) |
| 694 | goto bad_cmd; |
| 695 | |
| 696 | sd->state = sd_transfer_state; |
| 697 | return sd_r1; |
| 698 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 699 | case 2: /* CMD2: ALL_SEND_CID */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 700 | if (sd->spi) |
| 701 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 702 | switch (sd->state) { |
| 703 | case sd_ready_state: |
| 704 | sd->state = sd_identification_state; |
| 705 | return sd_r2_i; |
| 706 | |
| 707 | default: |
| 708 | break; |
| 709 | } |
| 710 | break; |
| 711 | |
| 712 | case 3: /* CMD3: SEND_RELATIVE_ADDR */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 713 | if (sd->spi) |
| 714 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 715 | switch (sd->state) { |
| 716 | case sd_identification_state: |
| 717 | case sd_standby_state: |
| 718 | sd->state = sd_standby_state; |
| 719 | sd_set_rca(sd); |
| 720 | return sd_r6; |
| 721 | |
| 722 | default: |
| 723 | break; |
| 724 | } |
| 725 | break; |
| 726 | |
| 727 | case 4: /* CMD4: SEND_DSR */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 728 | if (sd->spi) |
| 729 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 730 | switch (sd->state) { |
| 731 | case sd_standby_state: |
| 732 | break; |
| 733 | |
| 734 | default: |
| 735 | break; |
| 736 | } |
| 737 | break; |
| 738 | |
Juha Riihimäki | 109ac32 | 2009-12-03 15:56:07 +0200 | [diff] [blame] | 739 | case 5: /* CMD5: reserved for SDIO cards */ |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 740 | return sd_illegal; |
Juha Riihimäki | 109ac32 | 2009-12-03 15:56:07 +0200 | [diff] [blame] | 741 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 742 | case 6: /* CMD6: SWITCH_FUNCTION */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 743 | if (sd->spi) |
| 744 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 745 | switch (sd->mode) { |
| 746 | case sd_data_transfer_mode: |
| 747 | sd_function_switch(sd, req.arg); |
| 748 | sd->state = sd_sendingdata_state; |
| 749 | sd->data_start = 0; |
| 750 | sd->data_offset = 0; |
| 751 | return sd_r1; |
| 752 | |
| 753 | default: |
| 754 | break; |
| 755 | } |
| 756 | break; |
| 757 | |
| 758 | case 7: /* CMD7: SELECT/DESELECT_CARD */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 759 | if (sd->spi) |
| 760 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 761 | switch (sd->state) { |
| 762 | case sd_standby_state: |
| 763 | if (sd->rca != rca) |
| 764 | return sd_r0; |
| 765 | |
| 766 | sd->state = sd_transfer_state; |
| 767 | return sd_r1b; |
| 768 | |
| 769 | case sd_transfer_state: |
| 770 | case sd_sendingdata_state: |
| 771 | if (sd->rca == rca) |
| 772 | break; |
| 773 | |
| 774 | sd->state = sd_standby_state; |
| 775 | return sd_r1b; |
| 776 | |
| 777 | case sd_disconnect_state: |
| 778 | if (sd->rca != rca) |
| 779 | return sd_r0; |
| 780 | |
| 781 | sd->state = sd_programming_state; |
| 782 | return sd_r1b; |
| 783 | |
| 784 | case sd_programming_state: |
| 785 | if (sd->rca == rca) |
| 786 | break; |
| 787 | |
| 788 | sd->state = sd_disconnect_state; |
| 789 | return sd_r1b; |
| 790 | |
| 791 | default: |
| 792 | break; |
| 793 | } |
| 794 | break; |
| 795 | |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 796 | case 8: /* CMD8: SEND_IF_COND */ |
| 797 | /* Physical Layer Specification Version 2.00 command */ |
| 798 | switch (sd->state) { |
| 799 | case sd_idle_state: |
| 800 | sd->vhs = 0; |
| 801 | |
| 802 | /* No response if not exactly one VHS bit is set. */ |
| 803 | if (!(req.arg >> 8) || (req.arg >> ffs(req.arg & ~0xff))) |
| 804 | return sd->spi ? sd_r7 : sd_r0; |
| 805 | |
| 806 | /* Accept. */ |
| 807 | sd->vhs = req.arg; |
| 808 | return sd_r7; |
| 809 | |
| 810 | default: |
| 811 | break; |
| 812 | } |
| 813 | break; |
| 814 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 815 | case 9: /* CMD9: SEND_CSD */ |
| 816 | switch (sd->state) { |
| 817 | case sd_standby_state: |
| 818 | if (sd->rca != rca) |
| 819 | return sd_r0; |
| 820 | |
| 821 | return sd_r2_s; |
| 822 | |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 823 | case sd_transfer_state: |
| 824 | if (!sd->spi) |
| 825 | break; |
| 826 | sd->state = sd_sendingdata_state; |
| 827 | memcpy(sd->data, sd->csd, 16); |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 828 | sd->data_start = addr; |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 829 | sd->data_offset = 0; |
| 830 | return sd_r1; |
| 831 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 832 | default: |
| 833 | break; |
| 834 | } |
| 835 | break; |
| 836 | |
| 837 | case 10: /* CMD10: SEND_CID */ |
| 838 | switch (sd->state) { |
| 839 | case sd_standby_state: |
| 840 | if (sd->rca != rca) |
| 841 | return sd_r0; |
| 842 | |
| 843 | return sd_r2_i; |
| 844 | |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 845 | case sd_transfer_state: |
| 846 | if (!sd->spi) |
| 847 | break; |
| 848 | sd->state = sd_sendingdata_state; |
| 849 | memcpy(sd->data, sd->cid, 16); |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 850 | sd->data_start = addr; |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 851 | sd->data_offset = 0; |
| 852 | return sd_r1; |
| 853 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 854 | default: |
| 855 | break; |
| 856 | } |
| 857 | break; |
| 858 | |
| 859 | case 11: /* CMD11: READ_DAT_UNTIL_STOP */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 860 | if (sd->spi) |
| 861 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 862 | switch (sd->state) { |
| 863 | case sd_transfer_state: |
| 864 | sd->state = sd_sendingdata_state; |
| 865 | sd->data_start = req.arg; |
| 866 | sd->data_offset = 0; |
| 867 | |
| 868 | if (sd->data_start + sd->blk_len > sd->size) |
| 869 | sd->card_status |= ADDRESS_ERROR; |
| 870 | return sd_r0; |
| 871 | |
| 872 | default: |
| 873 | break; |
| 874 | } |
| 875 | break; |
| 876 | |
| 877 | case 12: /* CMD12: STOP_TRANSMISSION */ |
| 878 | switch (sd->state) { |
| 879 | case sd_sendingdata_state: |
| 880 | sd->state = sd_transfer_state; |
| 881 | return sd_r1b; |
| 882 | |
| 883 | case sd_receivingdata_state: |
| 884 | sd->state = sd_programming_state; |
| 885 | /* Bzzzzzzztt .... Operation complete. */ |
| 886 | sd->state = sd_transfer_state; |
| 887 | return sd_r1b; |
| 888 | |
| 889 | default: |
| 890 | break; |
| 891 | } |
| 892 | break; |
| 893 | |
| 894 | case 13: /* CMD13: SEND_STATUS */ |
| 895 | switch (sd->mode) { |
| 896 | case sd_data_transfer_mode: |
| 897 | if (sd->rca != rca) |
| 898 | return sd_r0; |
| 899 | |
| 900 | return sd_r1; |
| 901 | |
| 902 | default: |
| 903 | break; |
| 904 | } |
| 905 | break; |
| 906 | |
| 907 | case 15: /* CMD15: GO_INACTIVE_STATE */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 908 | if (sd->spi) |
| 909 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 910 | switch (sd->mode) { |
| 911 | case sd_data_transfer_mode: |
| 912 | if (sd->rca != rca) |
| 913 | return sd_r0; |
| 914 | |
| 915 | sd->state = sd_inactive_state; |
| 916 | return sd_r0; |
| 917 | |
| 918 | default: |
| 919 | break; |
| 920 | } |
| 921 | break; |
| 922 | |
| 923 | /* Block read commands (Classs 2) */ |
| 924 | case 16: /* CMD16: SET_BLOCKLEN */ |
| 925 | switch (sd->state) { |
| 926 | case sd_transfer_state: |
| 927 | if (req.arg > (1 << HWBLOCK_SHIFT)) |
| 928 | sd->card_status |= BLOCK_LEN_ERROR; |
| 929 | else |
| 930 | sd->blk_len = req.arg; |
| 931 | |
| 932 | return sd_r1; |
| 933 | |
| 934 | default: |
| 935 | break; |
| 936 | } |
| 937 | break; |
| 938 | |
| 939 | case 17: /* CMD17: READ_SINGLE_BLOCK */ |
| 940 | switch (sd->state) { |
| 941 | case sd_transfer_state: |
| 942 | sd->state = sd_sendingdata_state; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 943 | sd->data_start = addr; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 944 | sd->data_offset = 0; |
| 945 | |
| 946 | if (sd->data_start + sd->blk_len > sd->size) |
| 947 | sd->card_status |= ADDRESS_ERROR; |
| 948 | return sd_r1; |
| 949 | |
| 950 | default: |
| 951 | break; |
| 952 | } |
| 953 | break; |
| 954 | |
| 955 | case 18: /* CMD18: READ_MULTIPLE_BLOCK */ |
| 956 | switch (sd->state) { |
| 957 | case sd_transfer_state: |
| 958 | sd->state = sd_sendingdata_state; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 959 | sd->data_start = addr; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 960 | sd->data_offset = 0; |
| 961 | |
| 962 | if (sd->data_start + sd->blk_len > sd->size) |
| 963 | sd->card_status |= ADDRESS_ERROR; |
| 964 | return sd_r1; |
| 965 | |
| 966 | default: |
| 967 | break; |
| 968 | } |
| 969 | break; |
| 970 | |
| 971 | /* Block write commands (Class 4) */ |
| 972 | case 24: /* CMD24: WRITE_SINGLE_BLOCK */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 973 | if (sd->spi) |
| 974 | goto unimplemented_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 975 | switch (sd->state) { |
| 976 | case sd_transfer_state: |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 977 | /* Writing in SPI mode not implemented. */ |
| 978 | if (sd->spi) |
| 979 | break; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 980 | sd->state = sd_receivingdata_state; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 981 | sd->data_start = addr; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 982 | sd->data_offset = 0; |
| 983 | sd->blk_written = 0; |
| 984 | |
| 985 | if (sd->data_start + sd->blk_len > sd->size) |
| 986 | sd->card_status |= ADDRESS_ERROR; |
| 987 | if (sd_wp_addr(sd, sd->data_start)) |
| 988 | sd->card_status |= WP_VIOLATION; |
| 989 | if (sd->csd[14] & 0x30) |
| 990 | sd->card_status |= WP_VIOLATION; |
| 991 | return sd_r1; |
| 992 | |
| 993 | default: |
| 994 | break; |
| 995 | } |
| 996 | break; |
| 997 | |
| 998 | case 25: /* CMD25: WRITE_MULTIPLE_BLOCK */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 999 | if (sd->spi) |
| 1000 | goto unimplemented_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1001 | switch (sd->state) { |
| 1002 | case sd_transfer_state: |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1003 | /* Writing in SPI mode not implemented. */ |
| 1004 | if (sd->spi) |
| 1005 | break; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1006 | sd->state = sd_receivingdata_state; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1007 | sd->data_start = addr; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1008 | sd->data_offset = 0; |
| 1009 | sd->blk_written = 0; |
| 1010 | |
| 1011 | if (sd->data_start + sd->blk_len > sd->size) |
| 1012 | sd->card_status |= ADDRESS_ERROR; |
| 1013 | if (sd_wp_addr(sd, sd->data_start)) |
| 1014 | sd->card_status |= WP_VIOLATION; |
| 1015 | if (sd->csd[14] & 0x30) |
| 1016 | sd->card_status |= WP_VIOLATION; |
| 1017 | return sd_r1; |
| 1018 | |
| 1019 | default: |
| 1020 | break; |
| 1021 | } |
| 1022 | break; |
| 1023 | |
| 1024 | case 26: /* CMD26: PROGRAM_CID */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1025 | if (sd->spi) |
| 1026 | goto bad_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1027 | switch (sd->state) { |
| 1028 | case sd_transfer_state: |
| 1029 | sd->state = sd_receivingdata_state; |
| 1030 | sd->data_start = 0; |
| 1031 | sd->data_offset = 0; |
| 1032 | return sd_r1; |
| 1033 | |
| 1034 | default: |
| 1035 | break; |
| 1036 | } |
| 1037 | break; |
| 1038 | |
| 1039 | case 27: /* CMD27: PROGRAM_CSD */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1040 | if (sd->spi) |
| 1041 | goto unimplemented_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1042 | switch (sd->state) { |
| 1043 | case sd_transfer_state: |
| 1044 | sd->state = sd_receivingdata_state; |
| 1045 | sd->data_start = 0; |
| 1046 | sd->data_offset = 0; |
| 1047 | return sd_r1; |
| 1048 | |
| 1049 | default: |
| 1050 | break; |
| 1051 | } |
| 1052 | break; |
| 1053 | |
| 1054 | /* Write protection (Class 6) */ |
| 1055 | case 28: /* CMD28: SET_WRITE_PROT */ |
| 1056 | switch (sd->state) { |
| 1057 | case sd_transfer_state: |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1058 | if (addr >= sd->size) { |
Peter Maydell | e30d593 | 2011-12-18 21:37:54 +0100 | [diff] [blame] | 1059 | sd->card_status |= ADDRESS_ERROR; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1060 | return sd_r1b; |
| 1061 | } |
| 1062 | |
| 1063 | sd->state = sd_programming_state; |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1064 | set_bit(sd_addr_to_wpnum(addr), sd->wp_groups); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1065 | /* Bzzzzzzztt .... Operation complete. */ |
| 1066 | sd->state = sd_transfer_state; |
| 1067 | return sd_r1b; |
| 1068 | |
| 1069 | default: |
| 1070 | break; |
| 1071 | } |
| 1072 | break; |
| 1073 | |
| 1074 | case 29: /* CMD29: CLR_WRITE_PROT */ |
| 1075 | switch (sd->state) { |
| 1076 | case sd_transfer_state: |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1077 | if (addr >= sd->size) { |
Peter Maydell | e30d593 | 2011-12-18 21:37:54 +0100 | [diff] [blame] | 1078 | sd->card_status |= ADDRESS_ERROR; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1079 | return sd_r1b; |
| 1080 | } |
| 1081 | |
| 1082 | sd->state = sd_programming_state; |
Mitsyanko Igor | b7202b8 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1083 | clear_bit(sd_addr_to_wpnum(addr), sd->wp_groups); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1084 | /* Bzzzzzzztt .... Operation complete. */ |
| 1085 | sd->state = sd_transfer_state; |
| 1086 | return sd_r1b; |
| 1087 | |
| 1088 | default: |
| 1089 | break; |
| 1090 | } |
| 1091 | break; |
| 1092 | |
| 1093 | case 30: /* CMD30: SEND_WRITE_PROT */ |
| 1094 | switch (sd->state) { |
| 1095 | case sd_transfer_state: |
| 1096 | sd->state = sd_sendingdata_state; |
| 1097 | *(uint32_t *) sd->data = sd_wpbits(sd, req.arg); |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1098 | sd->data_start = addr; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1099 | sd->data_offset = 0; |
| 1100 | return sd_r1b; |
| 1101 | |
| 1102 | default: |
| 1103 | break; |
| 1104 | } |
| 1105 | break; |
| 1106 | |
| 1107 | /* Erase commands (Class 5) */ |
| 1108 | case 32: /* CMD32: ERASE_WR_BLK_START */ |
| 1109 | switch (sd->state) { |
| 1110 | case sd_transfer_state: |
| 1111 | sd->erase_start = req.arg; |
| 1112 | return sd_r1; |
| 1113 | |
| 1114 | default: |
| 1115 | break; |
| 1116 | } |
| 1117 | break; |
| 1118 | |
| 1119 | case 33: /* CMD33: ERASE_WR_BLK_END */ |
| 1120 | switch (sd->state) { |
| 1121 | case sd_transfer_state: |
| 1122 | sd->erase_end = req.arg; |
| 1123 | return sd_r1; |
| 1124 | |
| 1125 | default: |
| 1126 | break; |
| 1127 | } |
| 1128 | break; |
| 1129 | |
| 1130 | case 38: /* CMD38: ERASE */ |
| 1131 | switch (sd->state) { |
| 1132 | case sd_transfer_state: |
| 1133 | if (sd->csd[14] & 0x30) { |
| 1134 | sd->card_status |= WP_VIOLATION; |
| 1135 | return sd_r1b; |
| 1136 | } |
| 1137 | |
| 1138 | sd->state = sd_programming_state; |
| 1139 | sd_erase(sd); |
| 1140 | /* Bzzzzzzztt .... Operation complete. */ |
| 1141 | sd->state = sd_transfer_state; |
| 1142 | return sd_r1b; |
| 1143 | |
| 1144 | default: |
| 1145 | break; |
| 1146 | } |
| 1147 | break; |
| 1148 | |
| 1149 | /* Lock card commands (Class 7) */ |
| 1150 | case 42: /* CMD42: LOCK_UNLOCK */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1151 | if (sd->spi) |
| 1152 | goto unimplemented_cmd; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1153 | switch (sd->state) { |
| 1154 | case sd_transfer_state: |
| 1155 | sd->state = sd_receivingdata_state; |
| 1156 | sd->data_start = 0; |
| 1157 | sd->data_offset = 0; |
| 1158 | return sd_r1; |
| 1159 | |
| 1160 | default: |
| 1161 | break; |
| 1162 | } |
| 1163 | break; |
| 1164 | |
Peter Maydell | 39e594d | 2011-05-20 10:11:53 +0100 | [diff] [blame] | 1165 | case 52: |
| 1166 | case 53: |
| 1167 | /* CMD52, CMD53: reserved for SDIO cards |
| 1168 | * (see the SDIO Simplified Specification V2.0) |
| 1169 | * Handle as illegal command but do not complain |
| 1170 | * on stderr, as some OSes may use these in their |
| 1171 | * probing for presence of an SDIO card. |
| 1172 | */ |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1173 | return sd_illegal; |
Peter Maydell | 39e594d | 2011-05-20 10:11:53 +0100 | [diff] [blame] | 1174 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1175 | /* Application specific commands (Class 8) */ |
| 1176 | case 55: /* CMD55: APP_CMD */ |
| 1177 | if (sd->rca != rca) |
| 1178 | return sd_r0; |
| 1179 | |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1180 | sd->expecting_acmd = true; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1181 | sd->card_status |= APP_CMD; |
| 1182 | return sd_r1; |
| 1183 | |
| 1184 | case 56: /* CMD56: GEN_CMD */ |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1185 | fprintf(stderr, "SD: GEN_CMD 0x%08x\n", req.arg); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1186 | |
| 1187 | switch (sd->state) { |
| 1188 | case sd_transfer_state: |
| 1189 | sd->data_offset = 0; |
| 1190 | if (req.arg & 1) |
| 1191 | sd->state = sd_sendingdata_state; |
| 1192 | else |
| 1193 | sd->state = sd_receivingdata_state; |
| 1194 | return sd_r1; |
| 1195 | |
| 1196 | default: |
| 1197 | break; |
| 1198 | } |
| 1199 | break; |
| 1200 | |
| 1201 | default: |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1202 | bad_cmd: |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1203 | fprintf(stderr, "SD: Unknown CMD%i\n", req.cmd); |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1204 | return sd_illegal; |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1205 | |
| 1206 | unimplemented_cmd: |
| 1207 | /* Commands that are recognised but not yet implemented in SPI mode. */ |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1208 | fprintf(stderr, "SD: CMD%i not implemented in SPI mode\n", req.cmd); |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1209 | return sd_illegal; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1210 | } |
| 1211 | |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1212 | fprintf(stderr, "SD: CMD%i in a wrong state\n", req.cmd); |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1213 | return sd_illegal; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1214 | } |
| 1215 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1216 | static sd_rsp_type_t sd_app_command(SDState *sd, |
Blue Swirl | 22ed1d34 | 2010-04-25 19:31:06 +0000 | [diff] [blame] | 1217 | SDRequest req) |
| 1218 | { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1219 | DPRINTF("ACMD%d 0x%08x\n", req.cmd, req.arg); |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 1220 | sd->card_status |= APP_CMD; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1221 | switch (req.cmd) { |
| 1222 | case 6: /* ACMD6: SET_BUS_WIDTH */ |
| 1223 | switch (sd->state) { |
| 1224 | case sd_transfer_state: |
| 1225 | sd->sd_status[0] &= 0x3f; |
| 1226 | sd->sd_status[0] |= (req.arg & 0x03) << 6; |
| 1227 | return sd_r1; |
| 1228 | |
| 1229 | default: |
| 1230 | break; |
| 1231 | } |
| 1232 | break; |
| 1233 | |
| 1234 | case 13: /* ACMD13: SD_STATUS */ |
| 1235 | switch (sd->state) { |
| 1236 | case sd_transfer_state: |
Peter Maydell | fb1ba03 | 2011-02-18 13:39:00 +0000 | [diff] [blame] | 1237 | sd->state = sd_sendingdata_state; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1238 | sd->data_start = 0; |
| 1239 | sd->data_offset = 0; |
| 1240 | return sd_r1; |
| 1241 | |
| 1242 | default: |
| 1243 | break; |
| 1244 | } |
| 1245 | break; |
| 1246 | |
| 1247 | case 22: /* ACMD22: SEND_NUM_WR_BLOCKS */ |
| 1248 | switch (sd->state) { |
| 1249 | case sd_transfer_state: |
| 1250 | *(uint32_t *) sd->data = sd->blk_written; |
| 1251 | |
Peter Maydell | fb1ba03 | 2011-02-18 13:39:00 +0000 | [diff] [blame] | 1252 | sd->state = sd_sendingdata_state; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1253 | sd->data_start = 0; |
| 1254 | sd->data_offset = 0; |
| 1255 | return sd_r1; |
| 1256 | |
| 1257 | default: |
| 1258 | break; |
| 1259 | } |
| 1260 | break; |
| 1261 | |
| 1262 | case 23: /* ACMD23: SET_WR_BLK_ERASE_COUNT */ |
| 1263 | switch (sd->state) { |
| 1264 | case sd_transfer_state: |
| 1265 | return sd_r1; |
| 1266 | |
| 1267 | default: |
| 1268 | break; |
| 1269 | } |
| 1270 | break; |
| 1271 | |
| 1272 | case 41: /* ACMD41: SD_APP_OP_COND */ |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1273 | if (sd->spi) { |
| 1274 | /* SEND_OP_CMD */ |
| 1275 | sd->state = sd_transfer_state; |
| 1276 | return sd_r1; |
| 1277 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1278 | switch (sd->state) { |
| 1279 | case sd_idle_state: |
| 1280 | /* We accept any voltage. 10000 V is nothing. */ |
| 1281 | if (req.arg) |
| 1282 | sd->state = sd_ready_state; |
| 1283 | |
| 1284 | return sd_r3; |
| 1285 | |
| 1286 | default: |
| 1287 | break; |
| 1288 | } |
| 1289 | break; |
| 1290 | |
| 1291 | case 42: /* ACMD42: SET_CLR_CARD_DETECT */ |
| 1292 | switch (sd->state) { |
| 1293 | case sd_transfer_state: |
| 1294 | /* Bringing in the 50KOhm pull-up resistor... Done. */ |
| 1295 | return sd_r1; |
| 1296 | |
| 1297 | default: |
| 1298 | break; |
| 1299 | } |
| 1300 | break; |
| 1301 | |
| 1302 | case 51: /* ACMD51: SEND_SCR */ |
| 1303 | switch (sd->state) { |
| 1304 | case sd_transfer_state: |
| 1305 | sd->state = sd_sendingdata_state; |
| 1306 | sd->data_start = 0; |
| 1307 | sd->data_offset = 0; |
| 1308 | return sd_r1; |
| 1309 | |
| 1310 | default: |
| 1311 | break; |
| 1312 | } |
| 1313 | break; |
| 1314 | |
| 1315 | default: |
| 1316 | /* Fall back to standard commands. */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1317 | return sd_normal_command(sd, req); |
| 1318 | } |
| 1319 | |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1320 | fprintf(stderr, "SD: ACMD%i in a wrong state\n", req.cmd); |
Peter Maydell | 5b08bfe | 2011-12-18 21:37:57 +0100 | [diff] [blame] | 1321 | return sd_illegal; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1322 | } |
| 1323 | |
Peter Maydell | 25881d3 | 2011-12-18 21:37:51 +0100 | [diff] [blame] | 1324 | static int cmd_valid_while_locked(SDState *sd, SDRequest *req) |
| 1325 | { |
| 1326 | /* Valid commands in locked state: |
| 1327 | * basic class (0) |
| 1328 | * lock card class (7) |
| 1329 | * CMD16 |
| 1330 | * implicitly, the ACMD prefix CMD55 |
| 1331 | * ACMD41 and ACMD42 |
| 1332 | * Anything else provokes an "illegal command" response. |
| 1333 | */ |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 1334 | if (sd->expecting_acmd) { |
Peter Maydell | 25881d3 | 2011-12-18 21:37:51 +0100 | [diff] [blame] | 1335 | return req->cmd == 41 || req->cmd == 42; |
| 1336 | } |
| 1337 | if (req->cmd == 16 || req->cmd == 55) { |
| 1338 | return 1; |
| 1339 | } |
| 1340 | return sd_cmd_class[req->cmd] == 0 || sd_cmd_class[req->cmd] == 7; |
| 1341 | } |
| 1342 | |
Paul Brook | bc24a22 | 2009-05-10 01:44:56 +0100 | [diff] [blame] | 1343 | int sd_do_command(SDState *sd, SDRequest *req, |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1344 | uint8_t *response) { |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1345 | int last_state; |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1346 | sd_rsp_type_t rtype; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1347 | int rsplen; |
| 1348 | |
Paul Brook | 03f311e | 2009-05-03 16:52:16 +0100 | [diff] [blame] | 1349 | if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1350 | return 0; |
| 1351 | } |
| 1352 | |
| 1353 | if (sd_req_crc_validate(req)) { |
Peter Maydell | abda1f3 | 2011-12-18 21:37:53 +0100 | [diff] [blame] | 1354 | sd->card_status |= COM_CRC_ERROR; |
Peter Maydell | b1f517e | 2011-12-18 21:37:56 +0100 | [diff] [blame] | 1355 | rtype = sd_illegal; |
| 1356 | goto send_response; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1357 | } |
| 1358 | |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1359 | if (sd->card_status & CARD_IS_LOCKED) { |
Peter Maydell | 25881d3 | 2011-12-18 21:37:51 +0100 | [diff] [blame] | 1360 | if (!cmd_valid_while_locked(sd, req)) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1361 | sd->card_status |= ILLEGAL_COMMAND; |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1362 | sd->expecting_acmd = false; |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1363 | fprintf(stderr, "SD: Card is locked\n"); |
Peter Maydell | b1f517e | 2011-12-18 21:37:56 +0100 | [diff] [blame] | 1364 | rtype = sd_illegal; |
| 1365 | goto send_response; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1366 | } |
Peter Maydell | 25881d3 | 2011-12-18 21:37:51 +0100 | [diff] [blame] | 1367 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1368 | |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1369 | last_state = sd->state; |
| 1370 | sd_set_mode(sd); |
| 1371 | |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 1372 | if (sd->expecting_acmd) { |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1373 | sd->expecting_acmd = false; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1374 | rtype = sd_app_command(sd, *req); |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 1375 | } else { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1376 | rtype = sd_normal_command(sd, *req); |
Peter Maydell | 1d06cb7 | 2011-12-18 21:37:59 +0100 | [diff] [blame] | 1377 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1378 | |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1379 | if (rtype == sd_illegal) { |
| 1380 | sd->card_status |= ILLEGAL_COMMAND; |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1381 | } else { |
| 1382 | /* Valid command, we can update the 'state before command' bits. |
| 1383 | * (Do this now so they appear in r1 responses.) |
| 1384 | */ |
| 1385 | sd->current_cmd = req->cmd; |
| 1386 | sd->card_status &= ~CURRENT_STATE; |
| 1387 | sd->card_status |= (last_state << 9); |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1388 | } |
| 1389 | |
Peter Maydell | b1f517e | 2011-12-18 21:37:56 +0100 | [diff] [blame] | 1390 | send_response: |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1391 | switch (rtype) { |
| 1392 | case sd_r1: |
| 1393 | case sd_r1b: |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1394 | sd_response_r1_make(sd, response); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1395 | rsplen = 4; |
| 1396 | break; |
| 1397 | |
| 1398 | case sd_r2_i: |
| 1399 | memcpy(response, sd->cid, sizeof(sd->cid)); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1400 | rsplen = 16; |
| 1401 | break; |
| 1402 | |
| 1403 | case sd_r2_s: |
| 1404 | memcpy(response, sd->csd, sizeof(sd->csd)); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1405 | rsplen = 16; |
| 1406 | break; |
| 1407 | |
| 1408 | case sd_r3: |
| 1409 | sd_response_r3_make(sd, response); |
| 1410 | rsplen = 4; |
| 1411 | break; |
| 1412 | |
| 1413 | case sd_r6: |
| 1414 | sd_response_r6_make(sd, response); |
| 1415 | rsplen = 4; |
| 1416 | break; |
| 1417 | |
balrog | 1b08899 | 2007-12-24 14:41:39 +0000 | [diff] [blame] | 1418 | case sd_r7: |
| 1419 | sd_response_r7_make(sd, response); |
| 1420 | rsplen = 4; |
| 1421 | break; |
| 1422 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1423 | case sd_r0: |
Peter Maydell | 53bb8cc | 2011-12-18 21:37:55 +0100 | [diff] [blame] | 1424 | case sd_illegal: |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1425 | default: |
| 1426 | rsplen = 0; |
| 1427 | break; |
| 1428 | } |
| 1429 | |
Peter Maydell | 10a412d | 2011-12-18 21:37:58 +0100 | [diff] [blame] | 1430 | if (rtype != sd_illegal) { |
| 1431 | /* Clear the "clear on valid command" status bits now we've |
| 1432 | * sent any response |
| 1433 | */ |
| 1434 | sd->card_status &= ~CARD_STATUS_B; |
| 1435 | } |
| 1436 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1437 | #ifdef DEBUG_SD |
| 1438 | if (rsplen) { |
| 1439 | int i; |
| 1440 | DPRINTF("Response:"); |
| 1441 | for (i = 0; i < rsplen; i++) |
Peter Crosthwaite | 038d3d4 | 2012-11-15 16:32:53 +1000 | [diff] [blame] | 1442 | fprintf(stderr, " %02x", response[i]); |
| 1443 | fprintf(stderr, " state %d\n", sd->state); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1444 | } else { |
| 1445 | DPRINTF("No response %d\n", sd->state); |
| 1446 | } |
| 1447 | #endif |
| 1448 | |
| 1449 | return rsplen; |
| 1450 | } |
| 1451 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1452 | static void sd_blk_read(SDState *sd, uint64_t addr, uint32_t len) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1453 | { |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1454 | uint64_t end = addr + len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1455 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1456 | DPRINTF("sd_blk_read: addr = 0x%08llx, len = %d\n", |
| 1457 | (unsigned long long) addr, len); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1458 | if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1459 | fprintf(stderr, "sd_blk_read: read error on host side\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1460 | return; |
| 1461 | } |
| 1462 | |
| 1463 | if (end > (addr & ~511) + 512) { |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1464 | memcpy(sd->data, sd->buf + (addr & 511), 512 - (addr & 511)); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1465 | |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1466 | if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1467 | fprintf(stderr, "sd_blk_read: read error on host side\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1468 | return; |
| 1469 | } |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1470 | memcpy(sd->data + 512 - (addr & 511), sd->buf, end & 511); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1471 | } else |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1472 | memcpy(sd->data, sd->buf + (addr & 511), len); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1473 | } |
| 1474 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1475 | static void sd_blk_write(SDState *sd, uint64_t addr, uint32_t len) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1476 | { |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1477 | uint64_t end = addr + len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1478 | |
| 1479 | if ((addr & 511) || len < 512) |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1480 | if (!sd->bdrv || bdrv_read(sd->bdrv, addr >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1481 | fprintf(stderr, "sd_blk_write: read error on host side\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1482 | return; |
| 1483 | } |
| 1484 | |
| 1485 | if (end > (addr & ~511) + 512) { |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1486 | memcpy(sd->buf + (addr & 511), sd->data, 512 - (addr & 511)); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1487 | if (bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1488 | fprintf(stderr, "sd_blk_write: write error on host side\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1489 | return; |
| 1490 | } |
| 1491 | |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1492 | if (bdrv_read(sd->bdrv, end >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1493 | fprintf(stderr, "sd_blk_write: read error on host side\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1494 | return; |
| 1495 | } |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1496 | memcpy(sd->buf, sd->data + 512 - (addr & 511), end & 511); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1497 | if (bdrv_write(sd->bdrv, end >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1498 | fprintf(stderr, "sd_blk_write: write error on host side\n"); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1499 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1500 | } else { |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1501 | memcpy(sd->buf + (addr & 511), sd->data, len); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1502 | if (!sd->bdrv || bdrv_write(sd->bdrv, addr >> 9, sd->buf, 1) < 0) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1503 | fprintf(stderr, "sd_blk_write: write error on host side\n"); |
Stefan Weil | 7a608f5 | 2012-09-23 08:51:01 +0200 | [diff] [blame] | 1504 | } |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1505 | } |
| 1506 | } |
| 1507 | |
balrog | 33f0027 | 2007-12-24 14:33:24 +0000 | [diff] [blame] | 1508 | #define BLK_READ_BLOCK(a, len) sd_blk_read(sd, a, len) |
| 1509 | #define BLK_WRITE_BLOCK(a, len) sd_blk_write(sd, a, len) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1510 | #define APP_READ_BLOCK(a, len) memset(sd->data, 0xec, len) |
| 1511 | #define APP_WRITE_BLOCK(a, len) |
| 1512 | |
| 1513 | void sd_write_data(SDState *sd, uint8_t value) |
| 1514 | { |
| 1515 | int i; |
| 1516 | |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1517 | if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1518 | return; |
| 1519 | |
| 1520 | if (sd->state != sd_receivingdata_state) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1521 | fprintf(stderr, "sd_write_data: not in Receiving-Data state\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1522 | return; |
| 1523 | } |
| 1524 | |
| 1525 | if (sd->card_status & (ADDRESS_ERROR | WP_VIOLATION)) |
| 1526 | return; |
| 1527 | |
| 1528 | switch (sd->current_cmd) { |
| 1529 | case 24: /* CMD24: WRITE_SINGLE_BLOCK */ |
| 1530 | sd->data[sd->data_offset ++] = value; |
| 1531 | if (sd->data_offset >= sd->blk_len) { |
| 1532 | /* TODO: Check CRC before committing */ |
| 1533 | sd->state = sd_programming_state; |
| 1534 | BLK_WRITE_BLOCK(sd->data_start, sd->data_offset); |
| 1535 | sd->blk_written ++; |
| 1536 | sd->csd[14] |= 0x40; |
| 1537 | /* Bzzzzzzztt .... Operation complete. */ |
| 1538 | sd->state = sd_transfer_state; |
| 1539 | } |
| 1540 | break; |
| 1541 | |
| 1542 | case 25: /* CMD25: WRITE_MULTIPLE_BLOCK */ |
Dr. David Alan Gilbert | 33fa823 | 2011-07-25 13:21:30 +0100 | [diff] [blame] | 1543 | if (sd->data_offset == 0) { |
| 1544 | /* Start of the block - lets check the address is valid */ |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1545 | if (sd->data_start + sd->blk_len > sd->size) { |
| 1546 | sd->card_status |= ADDRESS_ERROR; |
| 1547 | break; |
| 1548 | } |
| 1549 | if (sd_wp_addr(sd, sd->data_start)) { |
| 1550 | sd->card_status |= WP_VIOLATION; |
| 1551 | break; |
| 1552 | } |
Dr. David Alan Gilbert | 33fa823 | 2011-07-25 13:21:30 +0100 | [diff] [blame] | 1553 | } |
| 1554 | sd->data[sd->data_offset++] = value; |
| 1555 | if (sd->data_offset >= sd->blk_len) { |
| 1556 | /* TODO: Check CRC before committing */ |
| 1557 | sd->state = sd_programming_state; |
| 1558 | BLK_WRITE_BLOCK(sd->data_start, sd->data_offset); |
| 1559 | sd->blk_written++; |
| 1560 | sd->data_start += sd->blk_len; |
| 1561 | sd->data_offset = 0; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1562 | sd->csd[14] |= 0x40; |
| 1563 | |
| 1564 | /* Bzzzzzzztt .... Operation complete. */ |
| 1565 | sd->state = sd_receivingdata_state; |
| 1566 | } |
| 1567 | break; |
| 1568 | |
| 1569 | case 26: /* CMD26: PROGRAM_CID */ |
| 1570 | sd->data[sd->data_offset ++] = value; |
| 1571 | if (sd->data_offset >= sizeof(sd->cid)) { |
| 1572 | /* TODO: Check CRC before committing */ |
| 1573 | sd->state = sd_programming_state; |
| 1574 | for (i = 0; i < sizeof(sd->cid); i ++) |
| 1575 | if ((sd->cid[i] | 0x00) != sd->data[i]) |
| 1576 | sd->card_status |= CID_CSD_OVERWRITE; |
| 1577 | |
| 1578 | if (!(sd->card_status & CID_CSD_OVERWRITE)) |
| 1579 | for (i = 0; i < sizeof(sd->cid); i ++) { |
| 1580 | sd->cid[i] |= 0x00; |
| 1581 | sd->cid[i] &= sd->data[i]; |
| 1582 | } |
| 1583 | /* Bzzzzzzztt .... Operation complete. */ |
| 1584 | sd->state = sd_transfer_state; |
| 1585 | } |
| 1586 | break; |
| 1587 | |
| 1588 | case 27: /* CMD27: PROGRAM_CSD */ |
| 1589 | sd->data[sd->data_offset ++] = value; |
| 1590 | if (sd->data_offset >= sizeof(sd->csd)) { |
| 1591 | /* TODO: Check CRC before committing */ |
| 1592 | sd->state = sd_programming_state; |
| 1593 | for (i = 0; i < sizeof(sd->csd); i ++) |
| 1594 | if ((sd->csd[i] | sd_csd_rw_mask[i]) != |
| 1595 | (sd->data[i] | sd_csd_rw_mask[i])) |
| 1596 | sd->card_status |= CID_CSD_OVERWRITE; |
| 1597 | |
| 1598 | /* Copy flag (OTP) & Permanent write protect */ |
| 1599 | if (sd->csd[14] & ~sd->data[14] & 0x60) |
| 1600 | sd->card_status |= CID_CSD_OVERWRITE; |
| 1601 | |
| 1602 | if (!(sd->card_status & CID_CSD_OVERWRITE)) |
| 1603 | for (i = 0; i < sizeof(sd->csd); i ++) { |
| 1604 | sd->csd[i] |= sd_csd_rw_mask[i]; |
| 1605 | sd->csd[i] &= sd->data[i]; |
| 1606 | } |
| 1607 | /* Bzzzzzzztt .... Operation complete. */ |
| 1608 | sd->state = sd_transfer_state; |
| 1609 | } |
| 1610 | break; |
| 1611 | |
| 1612 | case 42: /* CMD42: LOCK_UNLOCK */ |
| 1613 | sd->data[sd->data_offset ++] = value; |
| 1614 | if (sd->data_offset >= sd->blk_len) { |
| 1615 | /* TODO: Check CRC before committing */ |
| 1616 | sd->state = sd_programming_state; |
| 1617 | sd_lock_command(sd); |
| 1618 | /* Bzzzzzzztt .... Operation complete. */ |
| 1619 | sd->state = sd_transfer_state; |
| 1620 | } |
| 1621 | break; |
| 1622 | |
| 1623 | case 56: /* CMD56: GEN_CMD */ |
| 1624 | sd->data[sd->data_offset ++] = value; |
| 1625 | if (sd->data_offset >= sd->blk_len) { |
| 1626 | APP_WRITE_BLOCK(sd->data_start, sd->data_offset); |
| 1627 | sd->state = sd_transfer_state; |
| 1628 | } |
| 1629 | break; |
| 1630 | |
| 1631 | default: |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1632 | fprintf(stderr, "sd_write_data: unknown command\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1633 | break; |
| 1634 | } |
| 1635 | } |
| 1636 | |
| 1637 | uint8_t sd_read_data(SDState *sd) |
| 1638 | { |
| 1639 | /* TODO: Append CRCs */ |
| 1640 | uint8_t ret; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1641 | int io_len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1642 | |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1643 | if (!sd->bdrv || !bdrv_is_inserted(sd->bdrv) || !sd->enable) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1644 | return 0x00; |
| 1645 | |
| 1646 | if (sd->state != sd_sendingdata_state) { |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1647 | fprintf(stderr, "sd_read_data: not in Sending-Data state\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1648 | return 0x00; |
| 1649 | } |
| 1650 | |
| 1651 | if (sd->card_status & (ADDRESS_ERROR | WP_VIOLATION)) |
| 1652 | return 0x00; |
| 1653 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1654 | io_len = (sd->ocr & (1 << 30)) ? 512 : sd->blk_len; |
| 1655 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1656 | switch (sd->current_cmd) { |
| 1657 | case 6: /* CMD6: SWITCH_FUNCTION */ |
| 1658 | ret = sd->data[sd->data_offset ++]; |
| 1659 | |
| 1660 | if (sd->data_offset >= 64) |
| 1661 | sd->state = sd_transfer_state; |
| 1662 | break; |
| 1663 | |
pbrook | 775616c | 2007-11-24 23:35:08 +0000 | [diff] [blame] | 1664 | case 9: /* CMD9: SEND_CSD */ |
| 1665 | case 10: /* CMD10: SEND_CID */ |
| 1666 | ret = sd->data[sd->data_offset ++]; |
| 1667 | |
| 1668 | if (sd->data_offset >= 16) |
| 1669 | sd->state = sd_transfer_state; |
| 1670 | break; |
| 1671 | |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1672 | case 11: /* CMD11: READ_DAT_UNTIL_STOP */ |
| 1673 | if (sd->data_offset == 0) |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1674 | BLK_READ_BLOCK(sd->data_start, io_len); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1675 | ret = sd->data[sd->data_offset ++]; |
| 1676 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1677 | if (sd->data_offset >= io_len) { |
| 1678 | sd->data_start += io_len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1679 | sd->data_offset = 0; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1680 | if (sd->data_start + io_len > sd->size) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1681 | sd->card_status |= ADDRESS_ERROR; |
| 1682 | break; |
| 1683 | } |
| 1684 | } |
| 1685 | break; |
| 1686 | |
| 1687 | case 13: /* ACMD13: SD_STATUS */ |
| 1688 | ret = sd->sd_status[sd->data_offset ++]; |
| 1689 | |
| 1690 | if (sd->data_offset >= sizeof(sd->sd_status)) |
| 1691 | sd->state = sd_transfer_state; |
| 1692 | break; |
| 1693 | |
| 1694 | case 17: /* CMD17: READ_SINGLE_BLOCK */ |
| 1695 | if (sd->data_offset == 0) |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1696 | BLK_READ_BLOCK(sd->data_start, io_len); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1697 | ret = sd->data[sd->data_offset ++]; |
| 1698 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1699 | if (sd->data_offset >= io_len) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1700 | sd->state = sd_transfer_state; |
| 1701 | break; |
| 1702 | |
| 1703 | case 18: /* CMD18: READ_MULTIPLE_BLOCK */ |
| 1704 | if (sd->data_offset == 0) |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1705 | BLK_READ_BLOCK(sd->data_start, io_len); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1706 | ret = sd->data[sd->data_offset ++]; |
| 1707 | |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1708 | if (sd->data_offset >= io_len) { |
| 1709 | sd->data_start += io_len; |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1710 | sd->data_offset = 0; |
Andrzej Zaborowski | 2d7adea | 2009-11-03 15:28:19 +0100 | [diff] [blame] | 1711 | if (sd->data_start + io_len > sd->size) { |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1712 | sd->card_status |= ADDRESS_ERROR; |
| 1713 | break; |
| 1714 | } |
| 1715 | } |
| 1716 | break; |
| 1717 | |
| 1718 | case 22: /* ACMD22: SEND_NUM_WR_BLOCKS */ |
| 1719 | ret = sd->data[sd->data_offset ++]; |
| 1720 | |
| 1721 | if (sd->data_offset >= 4) |
| 1722 | sd->state = sd_transfer_state; |
| 1723 | break; |
| 1724 | |
| 1725 | case 30: /* CMD30: SEND_WRITE_PROT */ |
| 1726 | ret = sd->data[sd->data_offset ++]; |
| 1727 | |
| 1728 | if (sd->data_offset >= 4) |
| 1729 | sd->state = sd_transfer_state; |
| 1730 | break; |
| 1731 | |
| 1732 | case 51: /* ACMD51: SEND_SCR */ |
| 1733 | ret = sd->scr[sd->data_offset ++]; |
| 1734 | |
| 1735 | if (sd->data_offset >= sizeof(sd->scr)) |
| 1736 | sd->state = sd_transfer_state; |
| 1737 | break; |
| 1738 | |
| 1739 | case 56: /* CMD56: GEN_CMD */ |
| 1740 | if (sd->data_offset == 0) |
| 1741 | APP_READ_BLOCK(sd->data_start, sd->blk_len); |
| 1742 | ret = sd->data[sd->data_offset ++]; |
| 1743 | |
| 1744 | if (sd->data_offset >= sd->blk_len) |
| 1745 | sd->state = sd_transfer_state; |
| 1746 | break; |
| 1747 | |
| 1748 | default: |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1749 | fprintf(stderr, "sd_read_data: unknown command\n"); |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1750 | return 0x00; |
| 1751 | } |
| 1752 | |
| 1753 | return ret; |
| 1754 | } |
| 1755 | |
Mitsyanko Igor | 879bf4a | 2012-08-13 11:04:07 +0100 | [diff] [blame] | 1756 | bool sd_data_ready(SDState *sd) |
pbrook | a1bb27b | 2007-04-06 16:49:48 +0000 | [diff] [blame] | 1757 | { |
| 1758 | return sd->state == sd_sendingdata_state; |
| 1759 | } |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1760 | |
Mitsyanko Igor | bebd127 | 2012-08-13 11:04:06 +0100 | [diff] [blame] | 1761 | void sd_enable(SDState *sd, bool enable) |
balrog | 827df9f | 2008-04-14 21:05:22 +0000 | [diff] [blame] | 1762 | { |
| 1763 | sd->enable = enable; |
| 1764 | } |