nfsmb.c revision 1.1.2.2
1 1.1.2.2 mjf /* $NetBSD: nfsmb.c,v 1.1.2.2 2007/07/11 20:07:53 mjf Exp $ */ 2 1.1.2.2 mjf /* 3 1.1.2.2 mjf * Copyright (c) 2007 KIYOHARA Takashi 4 1.1.2.2 mjf * All rights reserved. 5 1.1.2.2 mjf * 6 1.1.2.2 mjf * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 mjf * modification, are permitted provided that the following conditions 8 1.1.2.2 mjf * are met: 9 1.1.2.2 mjf * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 mjf * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 mjf * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 mjf * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 mjf * documentation and/or other materials provided with the distribution. 14 1.1.2.2 mjf * 15 1.1.2.2 mjf * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.1.2.2 mjf * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 1.1.2.2 mjf * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 1.1.2.2 mjf * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 1.1.2.2 mjf * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 1.1.2.2 mjf * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 1.1.2.2 mjf * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.1.2.2 mjf * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 1.1.2.2 mjf * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 1.1.2.2 mjf * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 1.1.2.2 mjf * POSSIBILITY OF SUCH DAMAGE. 26 1.1.2.2 mjf * 27 1.1.2.2 mjf */ 28 1.1.2.2 mjf #include <sys/cdefs.h> 29 1.1.2.2 mjf __KERNEL_RCSID(0, "$NetBSD: nfsmb.c,v 1.1.2.2 2007/07/11 20:07:53 mjf Exp $"); 30 1.1.2.2 mjf 31 1.1.2.2 mjf #include <sys/param.h> 32 1.1.2.2 mjf #include <sys/device.h> 33 1.1.2.2 mjf #include <sys/errno.h> 34 1.1.2.2 mjf #include <sys/kernel.h> 35 1.1.2.2 mjf #include <sys/lock.h> 36 1.1.2.2 mjf #include <sys/proc.h> 37 1.1.2.2 mjf 38 1.1.2.2 mjf #include <machine/bus.h> 39 1.1.2.2 mjf 40 1.1.2.2 mjf #include <dev/i2c/i2cvar.h> 41 1.1.2.2 mjf 42 1.1.2.2 mjf #include <dev/pci/pcivar.h> 43 1.1.2.2 mjf #include <dev/pci/pcireg.h> 44 1.1.2.2 mjf #include <dev/pci/pcidevs.h> 45 1.1.2.2 mjf 46 1.1.2.2 mjf #include <dev/pci/nfsmbreg.h> 47 1.1.2.2 mjf 48 1.1.2.2 mjf 49 1.1.2.2 mjf struct nfsmbc_attach_args { 50 1.1.2.2 mjf int nfsmb_num; 51 1.1.2.2 mjf bus_space_tag_t nfsmb_iot; 52 1.1.2.2 mjf int nfsmb_addr; 53 1.1.2.2 mjf }; 54 1.1.2.2 mjf 55 1.1.2.2 mjf struct nfsmb_softc; 56 1.1.2.2 mjf struct nfsmbc_softc { 57 1.1.2.2 mjf struct device sc_dev; 58 1.1.2.2 mjf 59 1.1.2.2 mjf pci_chipset_tag_t sc_pc; 60 1.1.2.2 mjf pcitag_t sc_tag; 61 1.1.2.2 mjf struct pci_attach_args *sc_pa; 62 1.1.2.2 mjf 63 1.1.2.2 mjf bus_space_tag_t sc_iot; 64 1.1.2.2 mjf struct device *sc_nfsmb[2]; 65 1.1.2.2 mjf }; 66 1.1.2.2 mjf 67 1.1.2.2 mjf struct nfsmb_softc { 68 1.1.2.2 mjf struct device sc_dev; 69 1.1.2.2 mjf int sc_num; 70 1.1.2.2 mjf struct device *sc_nfsmbc; 71 1.1.2.2 mjf 72 1.1.2.2 mjf bus_space_tag_t sc_iot; 73 1.1.2.2 mjf bus_space_handle_t sc_ioh; 74 1.1.2.2 mjf 75 1.1.2.2 mjf struct i2c_controller sc_i2c; /* i2c controller info */ 76 1.1.2.2 mjf struct lock sc_lock; 77 1.1.2.2 mjf }; 78 1.1.2.2 mjf 79 1.1.2.2 mjf 80 1.1.2.2 mjf static int nfsmbc_match(struct device *, struct cfdata *, void *); 81 1.1.2.2 mjf static void nfsmbc_attach(struct device *, struct device *, void *); 82 1.1.2.2 mjf static int nfsmbc_print(void *, const char *); 83 1.1.2.2 mjf 84 1.1.2.2 mjf static int nfsmb_match(struct device *, struct cfdata *, void *); 85 1.1.2.2 mjf static void nfsmb_attach(struct device *, struct device *, void *); 86 1.1.2.2 mjf static int nfsmb_acquire_bus(void *, int); 87 1.1.2.2 mjf static void nfsmb_release_bus(void *, int); 88 1.1.2.2 mjf static int nfsmb_exec( 89 1.1.2.2 mjf void *, i2c_op_t, i2c_addr_t, const void *, size_t, void *, size_t, int); 90 1.1.2.2 mjf static int nfsmb_check_done(struct nfsmb_softc *); 91 1.1.2.2 mjf static int 92 1.1.2.2 mjf nfsmb_send_1(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 93 1.1.2.2 mjf static int nfsmb_write_1( 94 1.1.2.2 mjf struct nfsmb_softc *, uint8_t, uint8_t, i2c_addr_t, i2c_op_t, int); 95 1.1.2.2 mjf static int nfsmb_write_2( 96 1.1.2.2 mjf struct nfsmb_softc *, uint8_t, uint16_t, i2c_addr_t, i2c_op_t, int); 97 1.1.2.2 mjf static int nfsmb_receive_1(struct nfsmb_softc *, i2c_addr_t, i2c_op_t, int); 98 1.1.2.2 mjf static int 99 1.1.2.2 mjf nfsmb_read_1(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 100 1.1.2.2 mjf static int 101 1.1.2.2 mjf nfsmb_read_2(struct nfsmb_softc *, uint8_t, i2c_addr_t, i2c_op_t, int); 102 1.1.2.2 mjf 103 1.1.2.2 mjf 104 1.1.2.2 mjf CFATTACH_DECL(nfsmbc, sizeof(struct nfsmbc_softc), 105 1.1.2.2 mjf nfsmbc_match, nfsmbc_attach, NULL, NULL); 106 1.1.2.2 mjf 107 1.1.2.2 mjf static int 108 1.1.2.2 mjf nfsmbc_match(struct device *parent, struct cfdata *match, void *aux) 109 1.1.2.2 mjf { 110 1.1.2.2 mjf struct pci_attach_args *pa = aux; 111 1.1.2.2 mjf 112 1.1.2.2 mjf if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_NVIDIA) { 113 1.1.2.2 mjf switch (PCI_PRODUCT(pa->pa_id)) { 114 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_NFORCE2_SMBUS: 115 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_NFORCE2_400_SMBUS: 116 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_NFORCE3_SMBUS: 117 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_NFORCE3_250_SMBUS: 118 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_NFORCE4_SMBUS: 119 1.1.2.2 mjf case PCI_PRODUCT_NVIDIA_MCP04_SMBUS: 120 1.1.2.2 mjf return 1; 121 1.1.2.2 mjf } 122 1.1.2.2 mjf } 123 1.1.2.2 mjf 124 1.1.2.2 mjf return 0; 125 1.1.2.2 mjf } 126 1.1.2.2 mjf 127 1.1.2.2 mjf static void 128 1.1.2.2 mjf nfsmbc_attach(struct device *parent, struct device *self, void *aux) 129 1.1.2.2 mjf { 130 1.1.2.2 mjf struct nfsmbc_softc *sc = (struct nfsmbc_softc *) self; 131 1.1.2.2 mjf struct pci_attach_args *pa = aux; 132 1.1.2.2 mjf struct nfsmbc_attach_args nfsmbca; 133 1.1.2.2 mjf uint32_t reg; 134 1.1.2.2 mjf char devinfo[256]; 135 1.1.2.2 mjf 136 1.1.2.2 mjf aprint_naive("\n"); 137 1.1.2.2 mjf pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 138 1.1.2.2 mjf aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 139 1.1.2.2 mjf PCI_REVISION(pa->pa_class)); 140 1.1.2.2 mjf 141 1.1.2.2 mjf sc->sc_pc = pa->pa_pc; 142 1.1.2.2 mjf sc->sc_tag = pa->pa_tag; 143 1.1.2.2 mjf sc->sc_pa = pa; 144 1.1.2.2 mjf sc->sc_iot = pa->pa_iot; 145 1.1.2.2 mjf 146 1.1.2.2 mjf nfsmbca.nfsmb_iot = sc->sc_iot; 147 1.1.2.2 mjf 148 1.1.2.2 mjf reg = pci_conf_read(pa->pa_pc, pa->pa_tag, NFORCE_SMB1); 149 1.1.2.2 mjf nfsmbca.nfsmb_num = 1; 150 1.1.2.2 mjf nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg); 151 1.1.2.2 mjf sc->sc_nfsmb[0] = config_found(&sc->sc_dev, &nfsmbca, nfsmbc_print); 152 1.1.2.2 mjf 153 1.1.2.2 mjf reg = pci_conf_read(pa->pa_pc, pa->pa_tag, NFORCE_SMB2); 154 1.1.2.2 mjf nfsmbca.nfsmb_num = 2; 155 1.1.2.2 mjf nfsmbca.nfsmb_addr = NFORCE_SMBBASE(reg); 156 1.1.2.2 mjf sc->sc_nfsmb[1] = config_found(&sc->sc_dev, &nfsmbca, nfsmbc_print); 157 1.1.2.2 mjf } 158 1.1.2.2 mjf 159 1.1.2.2 mjf static int 160 1.1.2.2 mjf nfsmbc_print(void *aux, const char *pnp) 161 1.1.2.2 mjf { 162 1.1.2.2 mjf struct nfsmbc_attach_args *nfsmbcap = aux; 163 1.1.2.2 mjf 164 1.1.2.2 mjf if (pnp) 165 1.1.2.2 mjf aprint_normal("nfsmb SMBus %d at %s", 166 1.1.2.2 mjf nfsmbcap->nfsmb_num, pnp); 167 1.1.2.2 mjf else 168 1.1.2.2 mjf aprint_normal(" SMBus %d", nfsmbcap->nfsmb_num); 169 1.1.2.2 mjf return UNCONF; 170 1.1.2.2 mjf } 171 1.1.2.2 mjf 172 1.1.2.2 mjf 173 1.1.2.2 mjf CFATTACH_DECL(nfsmb, sizeof(struct nfsmb_softc), 174 1.1.2.2 mjf nfsmb_match, nfsmb_attach, NULL, NULL); 175 1.1.2.2 mjf 176 1.1.2.2 mjf static int 177 1.1.2.2 mjf nfsmb_match(struct device *parent, struct cfdata *match, void *aux) 178 1.1.2.2 mjf { 179 1.1.2.2 mjf struct nfsmbc_attach_args *nfsmbcap = aux; 180 1.1.2.2 mjf 181 1.1.2.2 mjf if (nfsmbcap->nfsmb_num == 1 || nfsmbcap->nfsmb_num == 2) 182 1.1.2.2 mjf return 1; 183 1.1.2.2 mjf return 0; 184 1.1.2.2 mjf } 185 1.1.2.2 mjf 186 1.1.2.2 mjf static void 187 1.1.2.2 mjf nfsmb_attach(struct device *parent, struct device *self, void *aux) 188 1.1.2.2 mjf { 189 1.1.2.2 mjf struct nfsmb_softc *sc = (struct nfsmb_softc *) self; 190 1.1.2.2 mjf struct nfsmbc_attach_args *nfsmbcap = aux; 191 1.1.2.2 mjf struct i2cbus_attach_args iba; 192 1.1.2.2 mjf 193 1.1.2.2 mjf aprint_naive("\n"); 194 1.1.2.2 mjf aprint_normal("\n"); 195 1.1.2.2 mjf 196 1.1.2.2 mjf sc->sc_nfsmbc = parent; 197 1.1.2.2 mjf sc->sc_num = nfsmbcap->nfsmb_num; 198 1.1.2.2 mjf sc->sc_iot = nfsmbcap->nfsmb_iot; 199 1.1.2.2 mjf 200 1.1.2.2 mjf /* register with iic */ 201 1.1.2.2 mjf sc->sc_i2c.ic_cookie = sc; 202 1.1.2.2 mjf sc->sc_i2c.ic_acquire_bus = nfsmb_acquire_bus; 203 1.1.2.2 mjf sc->sc_i2c.ic_release_bus = nfsmb_release_bus; 204 1.1.2.2 mjf sc->sc_i2c.ic_send_start = NULL; 205 1.1.2.2 mjf sc->sc_i2c.ic_send_stop = NULL; 206 1.1.2.2 mjf sc->sc_i2c.ic_initiate_xfer = NULL; 207 1.1.2.2 mjf sc->sc_i2c.ic_read_byte = NULL; 208 1.1.2.2 mjf sc->sc_i2c.ic_write_byte = NULL; 209 1.1.2.2 mjf sc->sc_i2c.ic_exec = nfsmb_exec; 210 1.1.2.2 mjf 211 1.1.2.2 mjf lockinit(&sc->sc_lock, PZERO, "nfsmb", 0, 0); 212 1.1.2.2 mjf 213 1.1.2.2 mjf if (bus_space_map(sc->sc_iot, nfsmbcap->nfsmb_addr, NFORCE_SMBSIZE, 0, 214 1.1.2.2 mjf &sc->sc_ioh)) { 215 1.1.2.2 mjf aprint_error("%s: failed to map SMBus space\n", 216 1.1.2.2 mjf sc->sc_dev.dv_xname); 217 1.1.2.2 mjf return; 218 1.1.2.2 mjf } 219 1.1.2.2 mjf 220 1.1.2.2 mjf iba.iba_tag = &sc->sc_i2c; 221 1.1.2.2 mjf (void) config_found_ia(&sc->sc_dev, "i2cbus", &iba, iicbus_print); 222 1.1.2.2 mjf } 223 1.1.2.2 mjf 224 1.1.2.2 mjf static int 225 1.1.2.2 mjf nfsmb_acquire_bus(void *cookie, int flags) 226 1.1.2.2 mjf { 227 1.1.2.2 mjf struct nfsmb_softc *sc = cookie; 228 1.1.2.2 mjf int err; 229 1.1.2.2 mjf 230 1.1.2.2 mjf err = lockmgr(&sc->sc_lock, LK_EXCLUSIVE, NULL); 231 1.1.2.2 mjf 232 1.1.2.2 mjf return err; 233 1.1.2.2 mjf } 234 1.1.2.2 mjf 235 1.1.2.2 mjf static void 236 1.1.2.2 mjf nfsmb_release_bus(void *cookie, int flags) 237 1.1.2.2 mjf { 238 1.1.2.2 mjf struct nfsmb_softc *sc = cookie; 239 1.1.2.2 mjf 240 1.1.2.2 mjf lockmgr(&sc->sc_lock, LK_RELEASE, NULL); 241 1.1.2.2 mjf 242 1.1.2.2 mjf return; 243 1.1.2.2 mjf } 244 1.1.2.2 mjf 245 1.1.2.2 mjf static int 246 1.1.2.2 mjf nfsmb_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *cmd, 247 1.1.2.2 mjf size_t cmdlen, void *vbuf, size_t buflen, int flags) 248 1.1.2.2 mjf { 249 1.1.2.2 mjf struct nfsmb_softc *sc = (struct nfsmb_softc *)cookie; 250 1.1.2.2 mjf uint8_t *p = vbuf; 251 1.1.2.2 mjf int rv; 252 1.1.2.2 mjf 253 1.1.2.2 mjf if (I2C_OP_READ_P(op) && (cmdlen == 0) && (buflen == 1)) { 254 1.1.2.2 mjf rv = nfsmb_receive_1(sc, addr, op, flags); 255 1.1.2.2 mjf if (rv == -1) 256 1.1.2.2 mjf return -1; 257 1.1.2.2 mjf *p = (uint8_t)rv; 258 1.1.2.2 mjf return 0; 259 1.1.2.2 mjf } 260 1.1.2.2 mjf 261 1.1.2.2 mjf if ((I2C_OP_READ_P(op)) && (cmdlen == 1) && (buflen == 1)) { 262 1.1.2.2 mjf rv = nfsmb_read_1(sc, *(const uint8_t*)cmd, addr, op, flags); 263 1.1.2.2 mjf if (rv == -1) 264 1.1.2.2 mjf return -1; 265 1.1.2.2 mjf *p = (uint8_t)rv; 266 1.1.2.2 mjf return 0; 267 1.1.2.2 mjf } 268 1.1.2.2 mjf if ((I2C_OP_READ_P(op)) && (cmdlen == 1) && (buflen == 2)) { 269 1.1.2.2 mjf rv = nfsmb_read_2(sc, *(const uint8_t*)cmd, addr, op, flags); 270 1.1.2.2 mjf if (rv == -1) 271 1.1.2.2 mjf return -1; 272 1.1.2.2 mjf *p = (uint8_t)rv; 273 1.1.2.2 mjf return 0; 274 1.1.2.2 mjf } 275 1.1.2.2 mjf 276 1.1.2.2 mjf 277 1.1.2.2 mjf if ((I2C_OP_WRITE_P(op)) && (cmdlen == 0) && (buflen == 1)) 278 1.1.2.2 mjf return nfsmb_send_1(sc, *(uint8_t*)vbuf, addr, op, flags); 279 1.1.2.2 mjf 280 1.1.2.2 mjf if ((I2C_OP_WRITE_P(op)) && (cmdlen == 1) && (buflen == 1)) 281 1.1.2.2 mjf return nfsmb_write_1(sc, *(const uint8_t*)cmd, *(uint8_t*)vbuf, 282 1.1.2.2 mjf addr, op, flags); 283 1.1.2.2 mjf 284 1.1.2.2 mjf if ((I2C_OP_WRITE_P(op)) && (cmdlen == 1) && (buflen == 2)) 285 1.1.2.2 mjf return nfsmb_write_2(sc, 286 1.1.2.2 mjf *(const uint8_t*)cmd, *((uint16_t *)vbuf), addr, op, flags); 287 1.1.2.2 mjf 288 1.1.2.2 mjf return (-1); 289 1.1.2.2 mjf } 290 1.1.2.2 mjf 291 1.1.2.2 mjf static int 292 1.1.2.2 mjf nfsmb_check_done(struct nfsmb_softc *sc) 293 1.1.2.2 mjf { 294 1.1.2.2 mjf uint8_t stat; 295 1.1.2.2 mjf 296 1.1.2.2 mjf stat = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_STATUS); 297 1.1.2.2 mjf 298 1.1.2.2 mjf if (~stat & NFORCE_SMB_STATUS_DONE) { 299 1.1.2.2 mjf delay(500); 300 1.1.2.2 mjf stat = 301 1.1.2.2 mjf bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_STATUS); 302 1.1.2.2 mjf } 303 1.1.2.2 mjf if (~stat & NFORCE_SMB_STATUS_DONE) { 304 1.1.2.2 mjf tsleep(sc, PCATCH, "nfsmb", hz / 100); 305 1.1.2.2 mjf stat = 306 1.1.2.2 mjf bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_STATUS); 307 1.1.2.2 mjf } 308 1.1.2.2 mjf 309 1.1.2.2 mjf if ((stat & NFORCE_SMB_STATUS_DONE) && 310 1.1.2.2 mjf !(stat & NFORCE_SMB_STATUS_STATUS)) 311 1.1.2.2 mjf return 0; 312 1.1.2.2 mjf return -1; 313 1.1.2.2 mjf } 314 1.1.2.2 mjf 315 1.1.2.2 mjf /* ARGSUSED */ 316 1.1.2.2 mjf static int 317 1.1.2.2 mjf nfsmb_send_1(struct nfsmb_softc *sc, uint8_t val, i2c_addr_t addr, i2c_op_t op, 318 1.1.2.2 mjf int flags) 319 1.1.2.2 mjf { 320 1.1.2.2 mjf uint8_t data; 321 1.1.2.2 mjf 322 1.1.2.2 mjf /* store cmd */ 323 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, val); 324 1.1.2.2 mjf 325 1.1.2.2 mjf /* write smbus slave address to register */ 326 1.1.2.2 mjf data = addr << 1; 327 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 328 1.1.2.2 mjf 329 1.1.2.2 mjf /* write smbus protocol to register */ 330 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE; 331 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 332 1.1.2.2 mjf 333 1.1.2.2 mjf return nfsmb_check_done(sc); 334 1.1.2.2 mjf } 335 1.1.2.2 mjf 336 1.1.2.2 mjf /* ARGSUSED */ 337 1.1.2.2 mjf static int 338 1.1.2.2 mjf nfsmb_write_1(struct nfsmb_softc *sc, uint8_t cmd, uint8_t val, i2c_addr_t addr, 339 1.1.2.2 mjf i2c_op_t op, int flags) 340 1.1.2.2 mjf { 341 1.1.2.2 mjf uint8_t data; 342 1.1.2.2 mjf 343 1.1.2.2 mjf /* store cmd */ 344 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 345 1.1.2.2 mjf 346 1.1.2.2 mjf /* store data */ 347 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, val); 348 1.1.2.2 mjf 349 1.1.2.2 mjf /* write smbus slave address to register */ 350 1.1.2.2 mjf data = addr << 1; 351 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 352 1.1.2.2 mjf 353 1.1.2.2 mjf /* write smbus protocol to register */ 354 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 355 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 356 1.1.2.2 mjf 357 1.1.2.2 mjf return nfsmb_check_done(sc); 358 1.1.2.2 mjf } 359 1.1.2.2 mjf 360 1.1.2.2 mjf static int 361 1.1.2.2 mjf nfsmb_write_2(struct nfsmb_softc *sc, uint8_t cmd, uint16_t val, 362 1.1.2.2 mjf i2c_addr_t addr, i2c_op_t op, int flags) 363 1.1.2.2 mjf { 364 1.1.2.2 mjf uint8_t data, low, high; 365 1.1.2.2 mjf 366 1.1.2.2 mjf /* store cmd */ 367 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 368 1.1.2.2 mjf 369 1.1.2.2 mjf /* store data */ 370 1.1.2.2 mjf low = val; 371 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, low); 372 1.1.2.2 mjf high = val >> 8; 373 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA, high); 374 1.1.2.2 mjf 375 1.1.2.2 mjf /* write smbus slave address to register */ 376 1.1.2.2 mjf data = addr << 1; 377 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 378 1.1.2.2 mjf 379 1.1.2.2 mjf /* write smbus protocol to register */ 380 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_WORD_DATA; 381 1.1.2.2 mjf if (flags & I2C_F_PEC) 382 1.1.2.2 mjf data |= NFORCE_SMB_PROTOCOL_PEC; 383 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 384 1.1.2.2 mjf 385 1.1.2.2 mjf return nfsmb_check_done(sc); 386 1.1.2.2 mjf } 387 1.1.2.2 mjf 388 1.1.2.2 mjf /* ARGSUSED */ 389 1.1.2.2 mjf static int 390 1.1.2.2 mjf nfsmb_receive_1(struct nfsmb_softc *sc, i2c_addr_t addr, i2c_op_t op, int flags) 391 1.1.2.2 mjf { 392 1.1.2.2 mjf uint8_t data; 393 1.1.2.2 mjf 394 1.1.2.2 mjf /* write smbus slave address to register */ 395 1.1.2.2 mjf data = addr << 1; 396 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 397 1.1.2.2 mjf 398 1.1.2.2 mjf /* write smbus protocol to register */ 399 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE; 400 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 401 1.1.2.2 mjf 402 1.1.2.2 mjf /* check for errors */ 403 1.1.2.2 mjf if (nfsmb_check_done(sc) < 0) 404 1.1.2.2 mjf return -1; 405 1.1.2.2 mjf 406 1.1.2.2 mjf /* read data */ 407 1.1.2.2 mjf return bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 408 1.1.2.2 mjf } 409 1.1.2.2 mjf 410 1.1.2.2 mjf /* ARGSUSED */ 411 1.1.2.2 mjf static int 412 1.1.2.2 mjf nfsmb_read_1(struct nfsmb_softc *sc, uint8_t cmd, i2c_addr_t addr, i2c_op_t op, 413 1.1.2.2 mjf int flags) 414 1.1.2.2 mjf { 415 1.1.2.2 mjf uint8_t data; 416 1.1.2.2 mjf 417 1.1.2.2 mjf /* store cmd */ 418 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 419 1.1.2.2 mjf 420 1.1.2.2 mjf /* write smbus slave address to register */ 421 1.1.2.2 mjf data = addr << 1; 422 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 423 1.1.2.2 mjf 424 1.1.2.2 mjf /* write smbus protocol to register */ 425 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 426 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 427 1.1.2.2 mjf 428 1.1.2.2 mjf /* check for errors */ 429 1.1.2.2 mjf if (nfsmb_check_done(sc) < 0) 430 1.1.2.2 mjf return (-1); 431 1.1.2.2 mjf 432 1.1.2.2 mjf /* read data */ 433 1.1.2.2 mjf return bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 434 1.1.2.2 mjf } 435 1.1.2.2 mjf 436 1.1.2.2 mjf static int 437 1.1.2.2 mjf nfsmb_read_2(struct nfsmb_softc *sc, uint8_t cmd, i2c_addr_t addr, i2c_op_t op, 438 1.1.2.2 mjf int flags) 439 1.1.2.2 mjf { 440 1.1.2.2 mjf uint8_t data, low, high; 441 1.1.2.2 mjf 442 1.1.2.2 mjf /* store cmd */ 443 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_COMMAND, cmd); 444 1.1.2.2 mjf 445 1.1.2.2 mjf /* write smbus slave address to register */ 446 1.1.2.2 mjf data = addr << 1; 447 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_ADDRESS, data); 448 1.1.2.2 mjf 449 1.1.2.2 mjf /* write smbus protocol to register */ 450 1.1.2.2 mjf data = I2C_OP_READ_P(op) | NFORCE_SMB_PROTOCOL_BYTE_DATA; 451 1.1.2.2 mjf if (flags & I2C_F_PEC) 452 1.1.2.2 mjf data |= NFORCE_SMB_PROTOCOL_PEC; 453 1.1.2.2 mjf bus_space_write_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_PROTOCOL, data); 454 1.1.2.2 mjf 455 1.1.2.2 mjf /* check for errors */ 456 1.1.2.2 mjf if (nfsmb_check_done(sc) < 0) 457 1.1.2.2 mjf return (-1); 458 1.1.2.2 mjf 459 1.1.2.2 mjf /* read data */ 460 1.1.2.2 mjf low = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 461 1.1.2.2 mjf high = bus_space_read_1(sc->sc_iot, sc->sc_ioh, NFORCE_SMB_DATA); 462 1.1.2.2 mjf return low | high << 8; 463 1.1.2.2 mjf } 464
Indexes created Thu Oct 02 14:10:14 GMT 2025