sdmmc_cis.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: sdmmc_cis.c,v 1.1.2.2 2009/04/28 07:36:33 skrll Exp $ */ 2 1.1.2.2 skrll /* $OpenBSD: sdmmc_cis.c,v 1.1 2006/06/01 21:53:41 uwe Exp $ */ 3 1.1.2.2 skrll 4 1.1.2.2 skrll /* 5 1.1.2.2 skrll * Copyright (c) 2006 Uwe Stuehler <uwe (at) openbsd.org> 6 1.1.2.2 skrll * 7 1.1.2.2 skrll * Permission to use, copy, modify, and distribute this software for any 8 1.1.2.2 skrll * purpose with or without fee is hereby granted, provided that the above 9 1.1.2.2 skrll * copyright notice and this permission notice appear in all copies. 10 1.1.2.2 skrll * 11 1.1.2.2 skrll * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 1.1.2.2 skrll * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 1.1.2.2 skrll * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 1.1.2.2 skrll * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 1.1.2.2 skrll * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 1.1.2.2 skrll * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 1.1.2.2 skrll * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 1.1.2.2 skrll */ 19 1.1.2.2 skrll 20 1.1.2.2 skrll /* Routines to decode the Card Information Structure of SD I/O cards */ 21 1.1.2.2 skrll 22 1.1.2.2 skrll #include <sys/cdefs.h> 23 1.1.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: sdmmc_cis.c,v 1.1.2.2 2009/04/28 07:36:33 skrll Exp $"); 24 1.1.2.2 skrll 25 1.1.2.2 skrll #include <sys/param.h> 26 1.1.2.2 skrll #include <sys/systm.h> 27 1.1.2.2 skrll 28 1.1.2.2 skrll #include <dev/sdmmc/sdmmc_ioreg.h> 29 1.1.2.2 skrll #include <dev/sdmmc/sdmmcdevs.h> 30 1.1.2.2 skrll #include <dev/sdmmc/sdmmcvar.h> 31 1.1.2.2 skrll 32 1.1.2.2 skrll #ifdef SDMMC_DEBUG 33 1.1.2.2 skrll #define DPRINTF(s) printf s 34 1.1.2.2 skrll #else 35 1.1.2.2 skrll #define DPRINTF(s) /**/ 36 1.1.2.2 skrll #endif 37 1.1.2.2 skrll 38 1.1.2.2 skrll static uint32_t sdmmc_cisptr(struct sdmmc_function *); 39 1.1.2.2 skrll static uint32_t 40 1.1.2.2 skrll sdmmc_cisptr(struct sdmmc_function *sf) 41 1.1.2.2 skrll { 42 1.1.2.2 skrll uint32_t cisptr = 0; 43 1.1.2.2 skrll 44 1.1.2.2 skrll /* XXX where is the per-function CIS pointer register? */ 45 1.1.2.2 skrll if (sf->number != 0) 46 1.1.2.2 skrll return SD_IO_CIS_START; 47 1.1.2.2 skrll 48 1.1.2.2 skrll /* XXX is the CIS pointer stored in little-endian format? */ 49 1.1.2.2 skrll cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR + 0) << 0; 50 1.1.2.2 skrll cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR + 1) << 8; 51 1.1.2.2 skrll cisptr |= sdmmc_io_read_1(sf, SD_IO_CCCR_CISPTR + 2) << 16; 52 1.1.2.2 skrll return cisptr; 53 1.1.2.2 skrll } 54 1.1.2.2 skrll 55 1.1.2.2 skrll int 56 1.1.2.2 skrll sdmmc_read_cis(struct sdmmc_function *sf, struct sdmmc_cis *cis) 57 1.1.2.2 skrll { 58 1.1.2.2 skrll device_t dev = sf->sc->sc_dev; 59 1.1.2.2 skrll uint32_t reg; 60 1.1.2.2 skrll uint8_t tplcode; 61 1.1.2.2 skrll uint8_t tpllen; 62 1.1.2.2 skrll int start, ch, count; 63 1.1.2.2 skrll int i; 64 1.1.2.2 skrll 65 1.1.2.2 skrll memset(cis, 0, sizeof *cis); 66 1.1.2.2 skrll 67 1.1.2.2 skrll /* XXX read per-function CIS */ 68 1.1.2.2 skrll if (sf->number != 0) 69 1.1.2.2 skrll return 1; 70 1.1.2.2 skrll 71 1.1.2.2 skrll reg = sdmmc_cisptr(sf); 72 1.1.2.2 skrll if (reg < SD_IO_CIS_START || 73 1.1.2.2 skrll reg >= (SD_IO_CIS_START + SD_IO_CIS_SIZE - 16)) { 74 1.1.2.2 skrll aprint_error_dev(dev, "bad CIS ptr %#x\n", reg); 75 1.1.2.2 skrll return 1; 76 1.1.2.2 skrll } 77 1.1.2.2 skrll 78 1.1.2.2 skrll for (;;) { 79 1.1.2.2 skrll tplcode = sdmmc_io_read_1(sf, reg++); 80 1.1.2.2 skrll tpllen = sdmmc_io_read_1(sf, reg++); 81 1.1.2.2 skrll 82 1.1.2.2 skrll if (tplcode == 0xff || tpllen == 0) { 83 1.1.2.2 skrll if (tplcode != 0xff) 84 1.1.2.2 skrll aprint_error_dev(dev, "CIS parse error at %d, " 85 1.1.2.2 skrll "tuple code %#x, length %d\n", 86 1.1.2.2 skrll reg, tplcode, tpllen); 87 1.1.2.2 skrll break; 88 1.1.2.2 skrll } 89 1.1.2.2 skrll 90 1.1.2.2 skrll switch (tplcode) { 91 1.1.2.2 skrll case SD_IO_CISTPL_FUNCID: 92 1.1.2.2 skrll if (tpllen < 2) { 93 1.1.2.2 skrll aprint_error_dev(dev, 94 1.1.2.2 skrll "bad CISTPL_FUNCID length\n"); 95 1.1.2.2 skrll reg += tpllen; 96 1.1.2.2 skrll break; 97 1.1.2.2 skrll } 98 1.1.2.2 skrll cis->function = sdmmc_io_read_1(sf, reg); 99 1.1.2.2 skrll reg += tpllen; 100 1.1.2.2 skrll break; 101 1.1.2.2 skrll 102 1.1.2.2 skrll case SD_IO_CISTPL_MANFID: 103 1.1.2.2 skrll if (tpllen < 4) { 104 1.1.2.2 skrll aprint_error_dev(dev, 105 1.1.2.2 skrll "bad CISTPL_MANFID length\n"); 106 1.1.2.2 skrll reg += tpllen; 107 1.1.2.2 skrll break; 108 1.1.2.2 skrll } 109 1.1.2.2 skrll cis->manufacturer = sdmmc_io_read_1(sf, reg++); 110 1.1.2.2 skrll cis->manufacturer |= sdmmc_io_read_1(sf, reg++) << 8; 111 1.1.2.2 skrll cis->product = sdmmc_io_read_1(sf, reg++); 112 1.1.2.2 skrll cis->product |= sdmmc_io_read_1(sf, reg++) << 8; 113 1.1.2.2 skrll break; 114 1.1.2.2 skrll 115 1.1.2.2 skrll case SD_IO_CISTPL_VERS_1: 116 1.1.2.2 skrll if (tpllen < 2) { 117 1.1.2.2 skrll aprint_error_dev(dev, 118 1.1.2.2 skrll "CISTPL_VERS_1 too short\n"); 119 1.1.2.2 skrll reg += tpllen; 120 1.1.2.2 skrll break; 121 1.1.2.2 skrll } 122 1.1.2.2 skrll 123 1.1.2.2 skrll cis->cis1_major = sdmmc_io_read_1(sf, reg++); 124 1.1.2.2 skrll cis->cis1_minor = sdmmc_io_read_1(sf, reg++); 125 1.1.2.2 skrll 126 1.1.2.2 skrll for (count = 0, start = 0, i = 0; 127 1.1.2.2 skrll (count < 4) && ((i + 4) < 256); i++) { 128 1.1.2.2 skrll ch = sdmmc_io_read_1(sf, reg + i); 129 1.1.2.2 skrll if (ch == 0xff) 130 1.1.2.2 skrll break; 131 1.1.2.2 skrll cis->cis1_info_buf[i] = ch; 132 1.1.2.2 skrll if (ch == 0) { 133 1.1.2.2 skrll cis->cis1_info[count] = 134 1.1.2.2 skrll cis->cis1_info_buf + start; 135 1.1.2.2 skrll start = i + 1; 136 1.1.2.2 skrll count++; 137 1.1.2.2 skrll } 138 1.1.2.2 skrll } 139 1.1.2.2 skrll 140 1.1.2.2 skrll reg += tpllen - 2; 141 1.1.2.2 skrll break; 142 1.1.2.2 skrll 143 1.1.2.2 skrll default: 144 1.1.2.2 skrll aprint_error_dev(dev, 145 1.1.2.2 skrll "unknown tuple code %#x, length %d\n", 146 1.1.2.2 skrll tplcode, tpllen); 147 1.1.2.2 skrll reg += tpllen; 148 1.1.2.2 skrll break; 149 1.1.2.2 skrll } 150 1.1.2.2 skrll } 151 1.1.2.2 skrll 152 1.1.2.2 skrll return 0; 153 1.1.2.2 skrll } 154 1.1.2.2 skrll 155 1.1.2.2 skrll void 156 1.1.2.2 skrll sdmmc_print_cis(struct sdmmc_function *sf) 157 1.1.2.2 skrll { 158 1.1.2.2 skrll device_t dev = sf->sc->sc_dev; 159 1.1.2.2 skrll struct sdmmc_cis *cis = &sf->cis; 160 1.1.2.2 skrll int i; 161 1.1.2.2 skrll 162 1.1.2.2 skrll printf("%s: CIS version %u.%u\n", device_xname(dev), cis->cis1_major, 163 1.1.2.2 skrll cis->cis1_minor); 164 1.1.2.2 skrll 165 1.1.2.2 skrll printf("%s: CIS info: ", device_xname(dev)); 166 1.1.2.2 skrll for (i = 0; i < 4; i++) { 167 1.1.2.2 skrll if (cis->cis1_info[i] == NULL) 168 1.1.2.2 skrll break; 169 1.1.2.2 skrll if (i != 0) 170 1.1.2.2 skrll aprint_verbose(", "); 171 1.1.2.2 skrll printf("%s", cis->cis1_info[i]); 172 1.1.2.2 skrll } 173 1.1.2.2 skrll printf("\n"); 174 1.1.2.2 skrll 175 1.1.2.2 skrll printf("%s: Manufacturer code 0x%x, product 0x%x\n", device_xname(dev), 176 1.1.2.2 skrll cis->manufacturer, cis->product); 177 1.1.2.2 skrll 178 1.1.2.2 skrll printf("%s: function %d: ", device_xname(dev), sf->number); 179 1.1.2.2 skrll switch (sf->cis.function) { 180 1.1.2.2 skrll case SDMMC_FUNCTION_WLAN: 181 1.1.2.2 skrll printf("wireless network adapter"); 182 1.1.2.2 skrll break; 183 1.1.2.2 skrll 184 1.1.2.2 skrll default: 185 1.1.2.2 skrll printf("unknown function (%d)", sf->cis.function); 186 1.1.2.2 skrll break; 187 1.1.2.2 skrll } 188 1.1.2.2 skrll printf("\n"); 189 1.1.2.2 skrll } 190 1.1.2.2 skrll 191 1.1.2.2 skrll void 192 1.1.2.2 skrll sdmmc_check_cis_quirks(struct sdmmc_function *sf) 193 1.1.2.2 skrll { 194 1.1.2.2 skrll char *p; 195 1.1.2.2 skrll int i; 196 1.1.2.2 skrll 197 1.1.2.2 skrll if (sf->cis.manufacturer == SDMMC_VENDOR_SPECTEC && 198 1.1.2.2 skrll sf->cis.product == SDMMC_PRODUCT_SPECTEC_SDW820) { 199 1.1.2.2 skrll /* This card lacks the VERS_1 tuple. */ 200 1.1.2.2 skrll static const char cis1_info[] = 201 1.1.2.2 skrll "Spectec\0SDIO WLAN Card\0SDW-820\0\0"; 202 1.1.2.2 skrll 203 1.1.2.2 skrll sf->cis.cis1_major = 0x01; 204 1.1.2.2 skrll sf->cis.cis1_minor = 0x00; 205 1.1.2.2 skrll 206 1.1.2.2 skrll p = sf->cis.cis1_info_buf; 207 1.1.2.2 skrll strlcpy(p, cis1_info, sizeof(sf->cis.cis1_info_buf)); 208 1.1.2.2 skrll for (i = 0; i < 4; i++) { 209 1.1.2.2 skrll sf->cis.cis1_info[i] = p; 210 1.1.2.2 skrll p += strlen(p) + 1; 211 1.1.2.2 skrll } 212 1.1.2.2 skrll } 213 1.1.2.2 skrll } 214
Indexes created Fri Oct 03 02:09:57 GMT 2025