nfsmb.c revision 1.6.2.3
1 1.6.2.3 yamt /* $NetBSD: nfsmb.c,v 1.6.2.3 2007/10/27 11:33:19 yamt Exp $ */ 2 1.6.2.2 yamt /* 3 1.6.2.2 yamt * Copyright (c) 2007 KIYOHARA Takashi 4 1.6.2.2 yamt * All rights reserved. 5 1.6.2.2 yamt * 6 1.6.2.2 yamt * Redistribution and use in source and binary forms, with or without 7 1.6.2.2 yamt * modification, are permitted provided that the following conditions 8 1.6.2.2 yamt * are met: 9 1.6.2.2 yamt * 1. Redistributions of source code must retain the above copyright 10 1.6.2.2 yamt * notice, this list of conditions and the following disclaimer. 11 1.6.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 12 1.6.2.2 yamt * notice, this list of conditions and the following disclaimer in the 13 1.6.2.2 yamt * documentation and/or other materials provided with the distribution. 14 1.6.2.2 yamt * 15 1.6.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.6.2.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 1.6.2.2 yamt * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 1.6.2.2 yamt * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 1.6.2.2 yamt * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 1.6.2.2 yamt * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 1.6.2.2 yamt * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.6.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 1.6.2.2 yamt * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 1.6.2.2 yamt * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 1.6.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 26 1.6.2.2 yamt * 27 1.6.2.2 yamt */ 28 1.6.2.2 yamt #include <sys/cdefs.h> 29 1.6.2.3 yamt __KERNEL_RCSID(0, "$NetBSD: nfsmb.c,v 1.6.2.3 2007/10/27 11:33:19 yamt Exp $"); 30 1.6.2.2 yamt 31 1.6.2.2 yamt #include <sys/param.h> 32 1.6.2.2 yamt #include <sys/device.h> 33 1.6.2.2 yamt #include <sys/errno.h> 34 1.6.2.2 yamt #include <sys/kernel.h> 35 1.6.2.2 yamt #include <sys/rwlock.h> 36 1.6.2.2 yamt #include <sys/proc.h> 37 1.6.2.2 yamt 38 1.6.2.3 yamt #include <sys/bus.h> 39 1.6.2.2 yamt 40 1.6.2.2 yamt #include <dev/i2c/i2cvar.h> 41 1.6.2.2 yamt 42 1.6.2.2 yamt #include <dev/pci/pcivar.h> 43 1.6.2.2 yamt #include <dev/pci/pcireg.h> 44 1.6.2.2 yamt #include <dev/pci/pcidevs.h> 45 1.6.2.2 yamt 46 1.6.2.2 yamt #include <dev/pci/nfsmbreg.h> 47 1.6.2.2 yamt 48 1.6.2.2 yamt 49 1.6.2.2 yamt struct nfsmbc_attach_args { 50 1.6.2.2 yamt int nfsmb_num; 51 1.6.2.2 yamt bus_space_tag_t nfsmb_iot; 52 1.6.2.2 yamt int nfsmb_addr; 53 1.6.2.2 yamt }; 54 1.6.2.2 yamt 55 1.6.2.2 yamt struct nfsmb_softc; 56 1.6.2.2 yamt struct nfsmbc_softc { 57 1.6.2.2 yamt struct device sc_dev; 58 1.6.2.2 yamt 59 1.6.2.2 yamt pci_chipset_tag_t sc_pc; 60 1.6.2.2 yamt pcitag_t sc_tag; 61 1.6.2.2 yamt struct pci_attach_args *sc_pa; 62 1.6.2.2 yamt 63 1.6.2.2 yamt bus_space_tag_t sc_iot; 64 1.6.2.2 yamt struct device *sc_nfsmb[2]; 65 1.6.2.2 yamt }; 66 1.6.2.2 yamt 67 1.6.2.2 yamt struct nfsmb_softc { 68 1.6.2.2 yamt struct device sc_dev; 69 1.6.2.2 yamt int sc_num; 70 1.6.2.2 yamt struct device *sc_nfsmbc; 71 1.6.2.2 yamt 72 1.6.2.2 yamt bus_space_tag_t sc_iot; 73 1.6.2.2 yamt bus_space_handle_t sc_ioh; 74 1.6.2.2 yamt 75 1.6.2.2 yamt struct i2c_controller sc_i2c; /* i2c controller info */ 76 1.6.2.2 yamt krwlock_t sc_rwlock; 77 1.6.2.2 yamt }; 78 1.6.2.2 yamt 79 1.6.2.2 yamt 80 1.6.2.2 yamt static int nfsmbc_match(struct device *, struct cfdata *, void *); 81 1.6.2.2 yamt static void nfsmbc_attach(struct device *, struct device *, void *); 82 1.6.2.2 yamt static int nfsmbc_print(void *, const char *); 83 1.6.2.2 yamt 84 1.6.2.2 yamt static int nfsmb_match(struct device *, struct cfdata *, void *); 85 1.6.2.2 yamt static void nfsmb_attach(struct device *, struct device *, void *); 86 1.6.2.2 yamt static int nfsmb_acquire_bus(void *, int); 87 1.6.2.2 yamt static void nfsmb_release_bus(void *, int); 88 1.6.2.2 yamt static int nfsmb_exec( 89 1.6.2.2 yamt void *, i2c_op_t, i2c_addr_t, const void *, size_t, void *, size_t, int); 90 1.6.2.2 yamt static int nfsmb_check_done(struct nfsmb_softc *); 91 1.6.2.2 yamt static int 92 1.6.2.2 yamt nfsmb_send_1(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 93 1.6.2.2 yamt static int nfsmb_write_1( 94 1.6.2.2 yamt struct nfsmb_softc *, uint8_t, uint8_t, i2c_addr_t, i2c_op_t, int); 95 1.6.2.2 yamt static int nfsmb_write_2( 96 1.6.2.2 yamt struct nfsmb_softc *, uint8_t, uint16_t, i2c_addr_t, i2c_op_t, int); 97 1.6.2.2 yamt static int nfsmb_receive_1(struct nfsmb_softc *, i2c_addr_t, i2c_op_t, int); 98 1.6.2.2 yamt static int 99 1.6.2.2 yamt nfsmb_read_1(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 100 1.6.2.2 yamt static int 101 1.6.2.2 yamt nfsmb_read_2(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 102 1.6.2.2 yamt 103 1.6.2.2 yamt 104 1.6.2.2 yamt CFATTACH_DECL(nfsmbc, sizeof(struct nfsmbc_softc), 105 1.6.2.2 yamt nfsmbc_match, nfsmbc_attach, NULL, NULL); 106 1.6.2.2 yamt 107 1.6.2.2 yamt static int 108 1.6.2.2 yamt nfsmbc_match(struct device *parent, struct cfdata *match, void *aux) 109 1.6.2.2 yamt { 110 1.6.2.2 yamt struct pci_attach_args *pa = aux; 111 1.6.2.2 yamt 112 1.6.2.2 yamt if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NVIDIA) { 113 1.6.2.2 yamt switch (PCI_PRODUCT(pa->pa_id)) { 114 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_NFORCE2_SMBUS: 115 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_NFORCE2_400_SMBUS: 116 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_NFORCE3_SMBUS: 117 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_NFORCE3_250_SMBUS: 118 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_NFORCE4_SMBUS: 119 1.6.2.2 yamt case PCI_PRODUCT_NVIDIA_MCP04_SMBUS: 120 1.6.2.2 yamt return 1; 121 1.6.2.2 yamt } 122 1.6.2.2 yamt } 123 1.6.2.2 yamt 124 1.6.2.2 yamt return 0; 125 1.6.2.2 yamt } 126 1.6.2.2 yamt 127 1.6.2.2 yamt static void 128 1.6.2.2 yamt nfsmbc_attach(struct device *parent, struct device *self, void *aux) 129 1.6.2.2 yamt { 130 1.6.2.2 yamt struct nfsmbc_softc *sc = (struct nfsmbc_softc *) self; 131 1.6.2.2 yamt struct pci_attach_args *pa = aux; 132 1.6.2.2 yamt struct nfsmbc_attach_args nfsmbca; 133 1.6.2.2 yamt pcireg_t reg; 134 1.6.2.2 yamt char devinfo[256]; 135 1.6.2.2 yamt 136 1.6.2.2 yamt aprint_naive("\n"); 137 1.6.2.2 yamt pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 138 1.6.2.2 yamt aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 139 1.6.2.2 yamt PCI_REVISION(pa->pa_class)); 140 1.6.2.2 yamt 141 1.6.2.2 yamt sc->sc_pc = pa->pa_pc; 142 1.6.2.2 yamt sc->sc_tag = pa->pa_tag; 143 1.6.2.2 yamt sc->sc_pa = pa; 144 1.6.2.2 yamt sc->sc_iot = pa->pa_iot; 145 1.6.2.2 yamt 146 1.6.2.2 yamt nfsmbca.nfsmb_iot = sc->sc_iot; 147 1.6.2.2 yamt 148 1.6.2.2 yamt reg = pci_conf_read(pa->pa_pc, pa->pa_tag, NFORCE_SMB1); 149 1.6.2.2 yamt nfsmbca.nfsmb_num = 1; 150 1.6.2.2 yamt nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg); 151 1.6.2.2 yamt sc->sc_nfsmb[0] = config_found(&sc->sc_dev, &nfsmbca, nfsmbc_print); 152 1.6.2.2 yamt 153 1.6.2.2 yamt reg = pci_conf_read(pa->pa_pc, pa->pa_tag, NFORCE_SMB2); 154 1.6.2.2 yamt nfsmbca.nfsmb_num = 2; 155 1.6.2.2 yamt nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg); 156 1.6.2.2 yamt sc->sc_nfsmb[1] = config_found(&sc->sc_dev, &nfsmbca, nfsmbc_print); 157 1.6.2.2 yamt } 158 1.6.2.2 yamt 159 1.6.2.2 yamt static int 160 1.6.2.2 yamt nfsmbc_print(void *aux, const char *pnp) 161 1.6.2.2 yamt { 162 1.6.2.2 yamt struct nfsmbc_attach_args *nfsmbcap = aux; 163 1.6.2.2 yamt 164 1.6.2.2 yamt if (pnp) 165 1.6.2.2 yamt aprint_normal("nfsmb SMBus %d at %s", 166 1.6.2.2 yamt nfsmbcap->nfsmb_num, pnp); 167 1.6.2.2 yamt else 168 1.6.2.2 yamt aprint_normal(" SMBus %d", nfsmbcap->nfsmb_num); 169 1.6.2.2 yamt return UNCONF; 170 1.6.2.2 yamt } 171 1.6.2.2 yamt 172 1.6.2.2 yamt 173 1.6.2.2 yamt CFATTACH_DECL(nfsmb, sizeof(struct nfsmb_softc), 174 1.6.2.2 yamt nfsmb_match, nfsmb_attach, NULL, NULL); 175 1.6.2.2 yamt 176 1.6.2.2 yamt static int 177 1.6.2.2 yamt nfsmb_match(struct device *parent, struct cfdata *match, void *aux) 178 1.6.2.2 yamt { 179 1.6.2.2 yamt struct nfsmbc_attach_args *nfsmbcap = aux; 180 1.6.2.2 yamt 181 1.6.2.2 yamt if (nfsmbcap->nfsmb_num == 1 || nfsmbcap->nfsmb_num == 2) 182 1.6.2.2 yamt return 1; 183 1.6.2.2 yamt return 0; 184 1.6.2.2 yamt } 185 1.6.2.2 yamt 186 1.6.2.2 yamt static void 187 1.6.2.2 yamt nfsmb_attach(struct device *parent, struct device *self, void *aux) 188 1.6.2.2 yamt { 189 1.6.2.2 yamt struct nfsmb_softc *sc = (struct nfsmb_softc *) self; 190 1.6.2.2 yamt struct nfsmbc_attach_args *nfsmbcap = aux; 191 1.6.2.2 yamt struct i2cbus_attach_args iba; 192 1.6.2.2 yamt 193 1.6.2.2 yamt aprint_naive("\n"); 194 1.6.2.2 yamt aprint_normal("\n"); 195 1.6.2.2 yamt 196 1.6.2.2 yamt sc->sc_nfsmbc = parent; 197 1.6.2.2 yamt sc->sc_num = nfsmbcap->nfsmb_num; 198 1.6.2.2 yamt sc->sc_iot = nfsmbcap->nfsmb_iot; 199 1.6.2.2 yamt 200 1.6.2.2 yamt /* register with iic */ 201 1.6.2.2 yamt sc->sc_i2c.ic_cookie = sc; 202 1.6.2.2 yamt sc->sc_i2c.ic_acquire_bus = nfsmb_acquire_bus; 203 1.6.2.2 yamt sc->sc_i2c.ic_release_bus = nfsmb_release_bus; 204 1.6.2.2 yamt sc->sc_i2c.ic_send_start = NULL; 205 1.6.2.2 yamt sc->sc_i2c.ic_send_stop = NULL; 206 1.6.2.2 yamt sc->sc_i2c.ic_initiate_xfer = NULL; 207 1.6.2.2 yamt sc->sc_i2c.ic_read_byte = NULL; 208 1.6.2.2 yamt sc->sc_i2c.ic_write_byte = NULL; 209 1.6.2.2 yamt sc->sc_i2c.ic_exec = nfsmb_exec; 210 1.6.2.2 yamt 211 1.6.2.2 yamt rw_init(&sc->sc_rwlock); 212 1.6.2.2 yamt 213 1.6.2.2 yamt if (bus_space_map(sc->sc_iot, nfsmbcap->nfsmb_addr, NFORCE_SMBSIZE, 0, 214 1.6.2.2 yamt &sc->sc_ioh) != 0) { 215 1.6.2.2 yamt aprint_error("%s: failed to map SMBus space\n", 216 1.6.2.2 yamt sc->sc_dev.dv_xname); 217 1.6.2.2 yamt return; 218 1.6.2.2 yamt } 219 1.6.2.2 yamt 220 1.6.2.2 yamt iba.iba_type = I2C_TYPE_SMBUS; 221 1.6.2.2 yamt iba.iba_tag = &sc->sc_i2c; 222 1.6.2.2 yamt (void) config_found_ia(&sc->sc_dev, "i2cbus", &iba, iicbus_print); 223 1.6.2.2 yamt } 224 1.6.2.2 yamt 225 1.6.2.2 yamt static int 226 1.6.2.2 yamt nfsmb_acquire_bus(void *cookie, int flags) 227 1.6.2.2 yamt { 228 1.6.2.2 yamt struct nfsmb_softc *sc = cookie; 229 1.6.2.2 yamt 230 1.6.2.2 yamt rw_enter(&sc->sc_rwlock, RW_WRITER); 231 1.6.2.2 yamt return 0; 232 1.6.2.2 yamt } 233 1.6.2.2 yamt 234 1.6.2.2 yamt static void 235 1.6.2.2 yamt nfsmb_release_bus(void *cookie, int flags) 236 1.6.2.2 yamt { 237 1.6.2.2 yamt struct nfsmb_softc *sc = cookie; 238 1.6.2.2 yamt 239 1.6.2.2 yamt rw_exit(&sc->sc_rwlock); 240 1.6.2.2 yamt } 241 1.6.2.2 yamt 242 1.6.2.2 yamt static int 243 1.6.2.2 yamt nfsmb_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *cmd, 244 1.6.2.2 yamt size_t cmdlen, void *vbuf, size_t buflen, int flags) 245 1.6.2.2 yamt { 246 1.6.2.2 yamt struct nfsmb_softc *sc = (struct nfsmb_softc *)cookie; 247 1.6.2.2 yamt uint8_t *p = vbuf; 248 1.6.2.2 yamt int rv; 249 1.6.2.2 yamt 250 1.6.2.2 yamt if (I2C_OP_READ_P(op) && (cmdlen == 0) && (buflen == 1)) { 251 1.6.2.2 yamt rv = nfsmb_receive_1(sc, addr, op, flags); 252 1.6.2.2 yamt if (rv == -1) 253 1.6.2.2 yamt return -1; 254 1.6.2.2 yamt *p = (uint8_t)rv; 255 1.6.2.2 yamt return 0; 256 1.6.2.2 yamt } 257 1.6.2.2 yamt 258 1.6.2.2 yamt if ((I2C_OP_READ_P(op)) && (cmdlen == 1) && (buflen == 1)) { 259 1.6.2.2 yamt rv = nfsmb_read_1(sc, *(const uint8_t*)cmd, addr, op, flags); 260 1.6.2.2 yamt if (rv == -1) 261 1.6.2.2 yamt return -1; 262 1.6.2.2 yamt *p = (uint8_t)rv; 263 1.6.2.2 yamt return 0; 264 1.6.2.2 yamt } 265 1.6.2.2 yamt 266 1.6.2.2 yamt if ((I2C_OP_READ_P(op)) && (cmdlen == 1) && (buflen == 2)) { 267 1.6.2.2 yamt rv = nfsmb_read_2(sc, *(const uint8_t*)cmd, addr, op, flags); 268 1.6.2.2 yamt if (rv == -1) 269 1.6.2.2 yamt return -1; 270 1.6.2.2 yamt *p = (uint8_t)rv; 271 1.6.2.2 yamt return 0; 272 1.6.2.2 yamt } 273 1.6.2.2 yamt 274 1.6.2.2 yamt if ((I2C_OP_WRITE_P(op)) && (cmdlen == 0) && (buflen == 1)) 275 1.6.2.2 yamt return nfsmb_send_1(sc, *(uint8_t*)vbuf, addr, op, flags); 276 1.6.2.2 yamt 277 1.6.2.2 yamt if ((I2C_OP_WRITE_P(op)) && (cmdlen == 1) && (buflen == 1)) 278 1.6.2.2 yamt return nfsmb_write_1(sc, *(const uint8_t*)cmd, *(uint8_t*)vbuf, 279 1.6.2.2 yamt addr, op, flags); 280 1.6.2.2 yamt 281 1.6.2.2 yamt if ((I2C_OP_WRITE_P(op)) && (cmdlen == 1) && (buflen == 2)) 282 1.6.2.2 yamt return nfsmb_write_2(sc, 283 1.6.2.2 yamt *(const uint8_t*)cmd, *((uint16_t *)vbuf), addr, op, flags); 284 1.6.2.2 yamt 285 1.6.2.2 yamt return -1; 286 1.6.2.2 yamt } 287 1.6.2.2 yamt 288 1.6.2.2 yamt static int 289 1.6.2.2 yamt nfsmb_check_done(struct nfsmb_softc *sc) 290 1.6.2.2 yamt { 291 1.6.2.2 yamt int us; 292 1.6.2.2 yamt uint8_t stat; 293 1.6.2.2 yamt 294 1.6.2.2 yamt us = 10 * 1000; /* XXXX: wait maximum 10 msec */ 295 1.6.2.2 yamt do { 296 1.6.2.2 yamt delay(10); 297 1.6.2.2 yamt us -= 10; 298 1.6.2.2 yamt if (us <= 0) 299 1.6.2.2 yamt return -1; 300 1.6.2.2 yamt } while (bus_space_read_1(sc->sc_iot, sc->sc_ioh, 301 1.6.2.2 yamt NFORCE_SMB_PROTOCOL) != 0); 302 1.6.2.2 yamt 303 1.6.2.2 yamt stat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_STATUS); 304 1.6.2.2 yamt if ((stat & NFORCE_SMB_STATUS_DONE) && 305 1.6.2.2 yamt !(stat & NFORCE_SMB_STATUS_STATUS)) 306 1.6.2.2 yamt return 0; 307 1.6.2.2 yamt return -1; 308 1.6.2.2 yamt } 309 1.6.2.2 yamt 310 1.6.2.2 yamt /* ARGSUSED */ 311 1.6.2.2 yamt static int 312 1.6.2.2 yamt nfsmb_send_1(struct nfsmb_softc *sc, uint8_t val, i2c_addr_t addr, i2c_op_t op, 313 1.6.2.2 yamt int flags) 314 1.6.2.2 yamt { 315 1.6.2.2 yamt uint8_t data; 316 1.6.2.2 yamt 317 1.6.2.2 yamt /* store cmd */ 318 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, val); 319 1.6.2.2 yamt 320 1.6.2.2 yamt /* write smbus slave address to register */ 321 1.6.2.2 yamt data = addr << 1; 322 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 323 1.6.2.2 yamt 324 1.6.2.2 yamt /* write smbus protocol to register */ 325 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE; 326 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 327 1.6.2.2 yamt 328 1.6.2.2 yamt return nfsmb_check_done(sc); 329 1.6.2.2 yamt } 330 1.6.2.2 yamt 331 1.6.2.2 yamt /* ARGSUSED */ 332 1.6.2.2 yamt static int 333 1.6.2.2 yamt nfsmb_write_1(struct nfsmb_softc *sc, uint8_t cmd, uint8_t val, i2c_addr_t addr, 334 1.6.2.2 yamt i2c_op_t op, int flags) 335 1.6.2.2 yamt { 336 1.6.2.2 yamt uint8_t data; 337 1.6.2.2 yamt 338 1.6.2.2 yamt /* store cmd */ 339 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 340 1.6.2.2 yamt 341 1.6.2.2 yamt /* store data */ 342 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, val); 343 1.6.2.2 yamt 344 1.6.2.2 yamt /* write smbus slave address to register */ 345 1.6.2.2 yamt data = addr << 1; 346 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 347 1.6.2.2 yamt 348 1.6.2.2 yamt /* write smbus protocol to register */ 349 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 350 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 351 1.6.2.2 yamt 352 1.6.2.2 yamt return nfsmb_check_done(sc); 353 1.6.2.2 yamt } 354 1.6.2.2 yamt 355 1.6.2.2 yamt static int 356 1.6.2.2 yamt nfsmb_write_2(struct nfsmb_softc *sc, uint8_t cmd, uint16_t val, 357 1.6.2.2 yamt i2c_addr_t addr, i2c_op_t op, int flags) 358 1.6.2.2 yamt { 359 1.6.2.2 yamt uint8_t data, low, high; 360 1.6.2.2 yamt 361 1.6.2.2 yamt /* store cmd */ 362 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 363 1.6.2.2 yamt 364 1.6.2.2 yamt /* store data */ 365 1.6.2.2 yamt low = val; 366 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, low); 367 1.6.2.2 yamt high = val >> 8; 368 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, high); 369 1.6.2.2 yamt 370 1.6.2.2 yamt /* write smbus slave address to register */ 371 1.6.2.2 yamt data = addr << 1; 372 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 373 1.6.2.2 yamt 374 1.6.2.2 yamt /* write smbus protocol to register */ 375 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_WORD_DATA; 376 1.6.2.2 yamt if (flags & I2C_F_PEC) 377 1.6.2.2 yamt data |= NFORCE_SMB_PROTOCOL_PEC; 378 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 379 1.6.2.2 yamt 380 1.6.2.2 yamt return nfsmb_check_done(sc); 381 1.6.2.2 yamt } 382 1.6.2.2 yamt 383 1.6.2.2 yamt /* ARGSUSED */ 384 1.6.2.2 yamt static int 385 1.6.2.2 yamt nfsmb_receive_1(struct nfsmb_softc *sc, i2c_addr_t addr, i2c_op_t op, int flags) 386 1.6.2.2 yamt { 387 1.6.2.2 yamt uint8_t data; 388 1.6.2.2 yamt 389 1.6.2.2 yamt /* write smbus slave address to register */ 390 1.6.2.2 yamt data = addr << 1; 391 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 392 1.6.2.2 yamt 393 1.6.2.2 yamt /* write smbus protocol to register */ 394 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE; 395 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 396 1.6.2.2 yamt 397 1.6.2.2 yamt /* check for errors */ 398 1.6.2.2 yamt if (nfsmb_check_done(sc) < 0) 399 1.6.2.2 yamt return -1; 400 1.6.2.2 yamt 401 1.6.2.2 yamt /* read data */ 402 1.6.2.2 yamt return bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 403 1.6.2.2 yamt } 404 1.6.2.2 yamt 405 1.6.2.2 yamt /* ARGSUSED */ 406 1.6.2.2 yamt static int 407 1.6.2.2 yamt nfsmb_read_1(struct nfsmb_softc *sc, uint8_t cmd, i2c_addr_t addr, i2c_op_t op, 408 1.6.2.2 yamt int flags) 409 1.6.2.2 yamt { 410 1.6.2.2 yamt uint8_t data; 411 1.6.2.2 yamt 412 1.6.2.2 yamt /* store cmd */ 413 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 414 1.6.2.2 yamt 415 1.6.2.2 yamt /* write smbus slave address to register */ 416 1.6.2.2 yamt data = addr << 1; 417 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 418 1.6.2.2 yamt 419 1.6.2.2 yamt /* write smbus protocol to register */ 420 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 421 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 422 1.6.2.2 yamt 423 1.6.2.2 yamt /* check for errors */ 424 1.6.2.2 yamt if (nfsmb_check_done(sc) < 0) 425 1.6.2.2 yamt return -1; 426 1.6.2.2 yamt 427 1.6.2.2 yamt /* read data */ 428 1.6.2.2 yamt return bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 429 1.6.2.2 yamt } 430 1.6.2.2 yamt 431 1.6.2.2 yamt static int 432 1.6.2.2 yamt nfsmb_read_2(struct nfsmb_softc *sc, uint8_t cmd, i2c_addr_t addr, i2c_op_t op, 433 1.6.2.2 yamt int flags) 434 1.6.2.2 yamt { 435 1.6.2.2 yamt uint8_t data, low, high; 436 1.6.2.2 yamt 437 1.6.2.2 yamt /* store cmd */ 438 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 439 1.6.2.2 yamt 440 1.6.2.2 yamt /* write smbus slave address to register */ 441 1.6.2.2 yamt data = addr << 1; 442 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 443 1.6.2.2 yamt 444 1.6.2.2 yamt /* write smbus protocol to register */ 445 1.6.2.2 yamt data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 446 1.6.2.2 yamt if (flags & I2C_F_PEC) 447 1.6.2.2 yamt data |= NFORCE_SMB_PROTOCOL_PEC; 448 1.6.2.2 yamt bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 449 1.6.2.2 yamt 450 1.6.2.2 yamt /* check for errors */ 451 1.6.2.2 yamt if (nfsmb_check_done(sc) < 0) 452 1.6.2.2 yamt return -1; 453 1.6.2.2 yamt 454 1.6.2.2 yamt /* read data */ 455 1.6.2.2 yamt low = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 456 1.6.2.2 yamt high = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 457 1.6.2.2 yamt return low | high << 8; 458 1.6.2.2 yamt } 459
Indexes created Thu Oct 02 14:10:14 GMT 2025