mlx_pci.c revision 1.1.2.2
1 1.1.2.2 bouyer /* $NetBSD: mlx_pci.c,v 1.1.2.2 2001/02/11 19:15:58 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by Andrew Doran. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer /*- 40 1.1.2.2 bouyer * Copyright (c) 1999 Michael Smith 41 1.1.2.2 bouyer * All rights reserved. 42 1.1.2.2 bouyer * 43 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 44 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 45 1.1.2.2 bouyer * are met: 46 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 47 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 48 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 49 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 50 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 51 1.1.2.2 bouyer * 52 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 53 1.1.2.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 1.1.2.2 bouyer * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 1.1.2.2 bouyer * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 56 1.1.2.2 bouyer * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 1.1.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 1.1.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 1.1.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 1.1.2.2 bouyer * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 1.1.2.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 1.1.2.2 bouyer * SUCH DAMAGE. 63 1.1.2.2 bouyer * 64 1.1.2.2 bouyer * from FreeBSD: mlx_pci.c,v 1.4.2.4 2000/10/28 10:48:09 msmith Exp 65 1.1.2.2 bouyer */ 66 1.1.2.2 bouyer 67 1.1.2.2 bouyer /* 68 1.1.2.2 bouyer * PCI front-end for the mlx(4) driver. 69 1.1.2.2 bouyer */ 70 1.1.2.2 bouyer 71 1.1.2.2 bouyer #include <sys/param.h> 72 1.1.2.2 bouyer #include <sys/systm.h> 73 1.1.2.2 bouyer #include <sys/kernel.h> 74 1.1.2.2 bouyer #include <sys/device.h> 75 1.1.2.2 bouyer #include <sys/queue.h> 76 1.1.2.2 bouyer #include <sys/callout.h> 77 1.1.2.2 bouyer 78 1.1.2.2 bouyer #include <machine/endian.h> 79 1.1.2.2 bouyer #include <machine/bus.h> 80 1.1.2.2 bouyer 81 1.1.2.2 bouyer #include <dev/ic/mlxreg.h> 82 1.1.2.2 bouyer #include <dev/ic/mlxio.h> 83 1.1.2.2 bouyer #include <dev/ic/mlxvar.h> 84 1.1.2.2 bouyer 85 1.1.2.2 bouyer #include <dev/pci/pcireg.h> 86 1.1.2.2 bouyer #include <dev/pci/pcivar.h> 87 1.1.2.2 bouyer #include <dev/pci/pcidevs.h> 88 1.1.2.2 bouyer 89 1.1.2.2 bouyer static void mlx_pci_attach(struct device *, struct device *, void *); 90 1.1.2.2 bouyer static int mlx_pci_match(struct device *, struct cfdata *, void *); 91 1.1.2.2 bouyer static const struct mlx_pci_ident *mlx_pci_findmpi(struct pci_attach_args *); 92 1.1.2.2 bouyer 93 1.1.2.2 bouyer static int mlx_v3_submit(struct mlx_softc *, struct mlx_ccb *); 94 1.1.2.2 bouyer static int mlx_v3_findcomplete(struct mlx_softc *, u_int *, u_int *); 95 1.1.2.2 bouyer static void mlx_v3_intaction(struct mlx_softc *, int); 96 1.1.2.2 bouyer static int mlx_v3_fw_handshake(struct mlx_softc *, int *, int *, int *); 97 1.1.2.2 bouyer 98 1.1.2.2 bouyer static int mlx_v4_submit(struct mlx_softc *, struct mlx_ccb *); 99 1.1.2.2 bouyer static int mlx_v4_findcomplete(struct mlx_softc *, u_int *, u_int *); 100 1.1.2.2 bouyer static void mlx_v4_intaction(struct mlx_softc *, int); 101 1.1.2.2 bouyer static int mlx_v4_fw_handshake(struct mlx_softc *, int *, int *, int *); 102 1.1.2.2 bouyer 103 1.1.2.2 bouyer static int mlx_v5_submit(struct mlx_softc *, struct mlx_ccb *); 104 1.1.2.2 bouyer static int mlx_v5_findcomplete(struct mlx_softc *, u_int *, u_int *); 105 1.1.2.2 bouyer static void mlx_v5_intaction(struct mlx_softc *, int); 106 1.1.2.2 bouyer static int mlx_v5_fw_handshake(struct mlx_softc *, int *, int *, int *); 107 1.1.2.2 bouyer 108 1.1.2.2 bouyer struct mlx_pci_ident { 109 1.1.2.2 bouyer u_short mpi_vendor; 110 1.1.2.2 bouyer u_short mpi_product; 111 1.1.2.2 bouyer u_short mpi_subvendor; 112 1.1.2.2 bouyer u_short mpi_subproduct; 113 1.1.2.2 bouyer int mpi_iftype; 114 1.1.2.2 bouyer } static const mlx_pci_ident[] = { 115 1.1.2.2 bouyer { 116 1.1.2.2 bouyer PCI_VENDOR_MYLEX, 117 1.1.2.2 bouyer PCI_PRODUCT_MYLEX_RAID_V2, 118 1.1.2.2 bouyer 0x0000, 119 1.1.2.2 bouyer 0x0000, 120 1.1.2.2 bouyer 2, 121 1.1.2.2 bouyer }, 122 1.1.2.2 bouyer { 123 1.1.2.2 bouyer PCI_VENDOR_MYLEX, 124 1.1.2.2 bouyer PCI_PRODUCT_MYLEX_RAID_V3, 125 1.1.2.2 bouyer 0x0000, 126 1.1.2.2 bouyer 0x0000, 127 1.1.2.2 bouyer 3, 128 1.1.2.2 bouyer }, 129 1.1.2.2 bouyer { 130 1.1.2.2 bouyer PCI_VENDOR_MYLEX, 131 1.1.2.2 bouyer PCI_PRODUCT_MYLEX_RAID_V4, 132 1.1.2.2 bouyer 0x0000, 133 1.1.2.2 bouyer 0x0000, 134 1.1.2.2 bouyer 4, 135 1.1.2.2 bouyer }, 136 1.1.2.2 bouyer { 137 1.1.2.2 bouyer PCI_VENDOR_DEC, 138 1.1.2.2 bouyer PCI_PRODUCT_DEC_SWXCR, 139 1.1.2.2 bouyer PCI_VENDOR_MYLEX, 140 1.1.2.2 bouyer PCI_PRODUCT_MYLEX_RAID_V5, 141 1.1.2.2 bouyer 5, 142 1.1.2.2 bouyer }, 143 1.1.2.2 bouyer }; 144 1.1.2.2 bouyer 145 1.1.2.2 bouyer struct cfattach mlx_pci_ca = { 146 1.1.2.2 bouyer sizeof(struct mlx_softc), mlx_pci_match, mlx_pci_attach 147 1.1.2.2 bouyer }; 148 1.1.2.2 bouyer 149 1.1.2.2 bouyer /* 150 1.1.2.2 bouyer * Try to find a `mlx_pci_ident' entry corresponding to this board. 151 1.1.2.2 bouyer */ 152 1.1.2.2 bouyer static const struct mlx_pci_ident * 153 1.1.2.2 bouyer mlx_pci_findmpi(struct pci_attach_args *pa) 154 1.1.2.2 bouyer { 155 1.1.2.2 bouyer const struct mlx_pci_ident *mpi, *maxmpi; 156 1.1.2.2 bouyer pcireg_t reg; 157 1.1.2.2 bouyer 158 1.1.2.2 bouyer mpi = mlx_pci_ident; 159 1.1.2.2 bouyer maxmpi = mpi + sizeof(mlx_pci_ident) / sizeof(mlx_pci_ident[0]); 160 1.1.2.2 bouyer 161 1.1.2.2 bouyer for (; mpi < maxmpi; mpi++) { 162 1.1.2.2 bouyer if (PCI_VENDOR(pa->pa_id) != mpi->mpi_vendor || 163 1.1.2.2 bouyer PCI_PRODUCT(pa->pa_id) != mpi->mpi_product) 164 1.1.2.2 bouyer continue; 165 1.1.2.2 bouyer 166 1.1.2.2 bouyer if (mpi->mpi_subvendor == 0x0000) 167 1.1.2.2 bouyer return (mpi); 168 1.1.2.2 bouyer 169 1.1.2.2 bouyer reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 170 1.1.2.2 bouyer 171 1.1.2.2 bouyer if (PCI_VENDOR(reg) == mpi->mpi_subvendor && 172 1.1.2.2 bouyer PCI_PRODUCT(reg) == mpi->mpi_subproduct) 173 1.1.2.2 bouyer return (mpi); 174 1.1.2.2 bouyer } 175 1.1.2.2 bouyer 176 1.1.2.2 bouyer return (NULL); 177 1.1.2.2 bouyer } 178 1.1.2.2 bouyer 179 1.1.2.2 bouyer /* 180 1.1.2.2 bouyer * Match a supported board. 181 1.1.2.2 bouyer */ 182 1.1.2.2 bouyer static int 183 1.1.2.2 bouyer mlx_pci_match(struct device *parent, struct cfdata *cfdata, void *aux) 184 1.1.2.2 bouyer { 185 1.1.2.2 bouyer 186 1.1.2.2 bouyer return (mlx_pci_findmpi(aux) != NULL); 187 1.1.2.2 bouyer } 188 1.1.2.2 bouyer 189 1.1.2.2 bouyer /* 190 1.1.2.2 bouyer * Attach a supported board. 191 1.1.2.2 bouyer */ 192 1.1.2.2 bouyer static void 193 1.1.2.2 bouyer mlx_pci_attach(struct device *parent, struct device *self, void *aux) 194 1.1.2.2 bouyer { 195 1.1.2.2 bouyer struct pci_attach_args *pa; 196 1.1.2.2 bouyer struct mlx_softc *mlx; 197 1.1.2.2 bouyer pci_chipset_tag_t pc; 198 1.1.2.2 bouyer pci_intr_handle_t ih; 199 1.1.2.2 bouyer pcireg_t reg; 200 1.1.2.2 bouyer const char *intrstr; 201 1.1.2.2 bouyer int ior, memr, i; 202 1.1.2.2 bouyer const struct mlx_pci_ident *mpi; 203 1.1.2.2 bouyer 204 1.1.2.2 bouyer mlx = (struct mlx_softc *)self; 205 1.1.2.2 bouyer pa = aux; 206 1.1.2.2 bouyer pc = pa->pa_pc; 207 1.1.2.2 bouyer mpi = mlx_pci_findmpi(aux); 208 1.1.2.2 bouyer 209 1.1.2.2 bouyer mlx->mlx_dmat = pa->pa_dmat; 210 1.1.2.2 bouyer mlx->mlx_iftype = mpi->mpi_iftype; 211 1.1.2.2 bouyer 212 1.1.2.2 bouyer printf(": Mylex RAID (v%d interface)\n", mpi->mpi_iftype); 213 1.1.2.2 bouyer 214 1.1.2.2 bouyer /* 215 1.1.2.2 bouyer * Map the PCI register window. 216 1.1.2.2 bouyer */ 217 1.1.2.2 bouyer memr = -1; 218 1.1.2.2 bouyer ior = -1; 219 1.1.2.2 bouyer 220 1.1.2.2 bouyer for (i = 0x10; i <= 0x14; i += 4) { 221 1.1.2.2 bouyer reg = pci_conf_read(pa->pa_pc, pa->pa_tag, i); 222 1.1.2.2 bouyer 223 1.1.2.2 bouyer if (PCI_MAPREG_TYPE(reg) == PCI_MAPREG_TYPE_IO) { 224 1.1.2.2 bouyer if (ior == -1 && PCI_MAPREG_IO_SIZE(reg) != 0) 225 1.1.2.2 bouyer ior = i; 226 1.1.2.2 bouyer } else { 227 1.1.2.2 bouyer if (memr == -1 && PCI_MAPREG_MEM_SIZE(reg) != 0) 228 1.1.2.2 bouyer memr = i; 229 1.1.2.2 bouyer } 230 1.1.2.2 bouyer } 231 1.1.2.2 bouyer 232 1.1.2.2 bouyer if (memr != -1) 233 1.1.2.2 bouyer if (pci_mapreg_map(pa, memr, PCI_MAPREG_TYPE_MEM, 0, 234 1.1.2.2 bouyer &mlx->mlx_iot, &mlx->mlx_ioh, NULL, NULL)) 235 1.1.2.2 bouyer memr = -1; 236 1.1.2.2 bouyer if (ior != -1) 237 1.1.2.2 bouyer if (pci_mapreg_map(pa, ior, PCI_MAPREG_TYPE_IO, 0, 238 1.1.2.2 bouyer &mlx->mlx_iot, &mlx->mlx_ioh, NULL, NULL)) 239 1.1.2.2 bouyer ior = -1; 240 1.1.2.2 bouyer if (memr == -1 && ior == -1) { 241 1.1.2.2 bouyer printf("%s: can't map i/o or memory space\n", self->dv_xname); 242 1.1.2.2 bouyer return; 243 1.1.2.2 bouyer } 244 1.1.2.2 bouyer 245 1.1.2.2 bouyer /* Enable the device. */ 246 1.1.2.2 bouyer reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 247 1.1.2.2 bouyer pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 248 1.1.2.2 bouyer reg | PCI_COMMAND_MASTER_ENABLE); 249 1.1.2.2 bouyer 250 1.1.2.2 bouyer /* Map and establish the interrupt. */ 251 1.1.2.2 bouyer if (pci_intr_map(pa, &ih)) { 252 1.1.2.2 bouyer printf("%s: can't map interrupt\n", self->dv_xname); 253 1.1.2.2 bouyer return; 254 1.1.2.2 bouyer } 255 1.1.2.2 bouyer intrstr = pci_intr_string(pc, ih); 256 1.1.2.2 bouyer mlx->mlx_ih = pci_intr_establish(pc, ih, IPL_BIO, mlx_intr, mlx); 257 1.1.2.2 bouyer if (mlx->mlx_ih == NULL) { 258 1.1.2.2 bouyer printf("%s: can't establish interrupt", self->dv_xname); 259 1.1.2.2 bouyer if (intrstr != NULL) 260 1.1.2.2 bouyer printf(" at %s", intrstr); 261 1.1.2.2 bouyer printf("\n"); 262 1.1.2.2 bouyer return; 263 1.1.2.2 bouyer } 264 1.1.2.2 bouyer 265 1.1.2.2 bouyer /* Select linkage based on controller interface type. */ 266 1.1.2.2 bouyer switch (mlx->mlx_iftype) { 267 1.1.2.2 bouyer case 2: 268 1.1.2.2 bouyer case 3: 269 1.1.2.2 bouyer mlx->mlx_submit = mlx_v3_submit; 270 1.1.2.2 bouyer mlx->mlx_findcomplete = mlx_v3_findcomplete; 271 1.1.2.2 bouyer mlx->mlx_intaction = mlx_v3_intaction; 272 1.1.2.2 bouyer mlx->mlx_fw_handshake = mlx_v3_fw_handshake; 273 1.1.2.2 bouyer break; 274 1.1.2.2 bouyer 275 1.1.2.2 bouyer case 4: 276 1.1.2.2 bouyer mlx->mlx_submit = mlx_v4_submit; 277 1.1.2.2 bouyer mlx->mlx_findcomplete = mlx_v4_findcomplete; 278 1.1.2.2 bouyer mlx->mlx_intaction = mlx_v4_intaction; 279 1.1.2.2 bouyer mlx->mlx_fw_handshake = mlx_v4_fw_handshake; 280 1.1.2.2 bouyer break; 281 1.1.2.2 bouyer 282 1.1.2.2 bouyer case 5: 283 1.1.2.2 bouyer mlx->mlx_submit = mlx_v5_submit; 284 1.1.2.2 bouyer mlx->mlx_findcomplete = mlx_v5_findcomplete; 285 1.1.2.2 bouyer mlx->mlx_intaction = mlx_v5_intaction; 286 1.1.2.2 bouyer mlx->mlx_fw_handshake = mlx_v5_fw_handshake; 287 1.1.2.2 bouyer break; 288 1.1.2.2 bouyer } 289 1.1.2.2 bouyer 290 1.1.2.2 bouyer mlx_init(mlx, intrstr); 291 1.1.2.2 bouyer } 292 1.1.2.2 bouyer 293 1.1.2.2 bouyer /* 294 1.1.2.2 bouyer * ================= V3 interface linkage ================= 295 1.1.2.2 bouyer */ 296 1.1.2.2 bouyer 297 1.1.2.2 bouyer /* 298 1.1.2.2 bouyer * Try to give (mc) to the controller. Returns 1 if successful, 0 on 299 1.1.2.2 bouyer * failure (the controller is not ready to take a command). 300 1.1.2.2 bouyer * 301 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 302 1.1.2.2 bouyer */ 303 1.1.2.2 bouyer static int 304 1.1.2.2 bouyer mlx_v3_submit(struct mlx_softc *mlx, struct mlx_ccb *mc) 305 1.1.2.2 bouyer { 306 1.1.2.2 bouyer 307 1.1.2.2 bouyer /* Ready for our command? */ 308 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V3REG_IDB) & MLX_V3_IDB_FULL) == 0) { 309 1.1.2.2 bouyer /* Copy mailbox data to window. */ 310 1.1.2.2 bouyer bus_space_write_region_1(mlx->mlx_iot, mlx->mlx_ioh, 311 1.1.2.2 bouyer MLX_V3REG_MAILBOX, mc->mc_mbox, MLX_V3_MAILBOX_LEN); 312 1.1.2.2 bouyer bus_space_barrier(mlx->mlx_iot, mlx->mlx_ioh, 313 1.1.2.2 bouyer MLX_V3REG_MAILBOX, MLX_V3_MAILBOX_LEN, 314 1.1.2.2 bouyer BUS_SPACE_BARRIER_WRITE); 315 1.1.2.2 bouyer 316 1.1.2.2 bouyer /* Post command. */ 317 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_IDB, MLX_V3_IDB_FULL); 318 1.1.2.2 bouyer return (1); 319 1.1.2.2 bouyer } 320 1.1.2.2 bouyer 321 1.1.2.2 bouyer return (0); 322 1.1.2.2 bouyer } 323 1.1.2.2 bouyer 324 1.1.2.2 bouyer /* 325 1.1.2.2 bouyer * See if a command has been completed, if so acknowledge its completion and 326 1.1.2.2 bouyer * recover the slot number and status code. 327 1.1.2.2 bouyer * 328 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 329 1.1.2.2 bouyer */ 330 1.1.2.2 bouyer static int 331 1.1.2.2 bouyer mlx_v3_findcomplete(struct mlx_softc *mlx, u_int *slot, u_int *status) 332 1.1.2.2 bouyer { 333 1.1.2.2 bouyer 334 1.1.2.2 bouyer /* Status available? */ 335 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V3REG_ODB) & MLX_V3_ODB_SAVAIL) != 0) { 336 1.1.2.2 bouyer *slot = mlx_inb(mlx, MLX_V3REG_STATUS_IDENT); 337 1.1.2.2 bouyer *status = mlx_inw(mlx, MLX_V3REG_STATUS); 338 1.1.2.2 bouyer 339 1.1.2.2 bouyer /* Acknowledge completion. */ 340 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_ODB, MLX_V3_ODB_SAVAIL); 341 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_IDB, MLX_V3_IDB_SACK); 342 1.1.2.2 bouyer return (1); 343 1.1.2.2 bouyer } 344 1.1.2.2 bouyer 345 1.1.2.2 bouyer return (0); 346 1.1.2.2 bouyer } 347 1.1.2.2 bouyer 348 1.1.2.2 bouyer /* 349 1.1.2.2 bouyer * Enable/disable interrupts as requested. (No acknowledge required) 350 1.1.2.2 bouyer * 351 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 352 1.1.2.2 bouyer */ 353 1.1.2.2 bouyer static void 354 1.1.2.2 bouyer mlx_v3_intaction(struct mlx_softc *mlx, int action) 355 1.1.2.2 bouyer { 356 1.1.2.2 bouyer 357 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_IE, action != 0); 358 1.1.2.2 bouyer } 359 1.1.2.2 bouyer 360 1.1.2.2 bouyer /* 361 1.1.2.2 bouyer * Poll for firmware error codes during controller initialisation. 362 1.1.2.2 bouyer * 363 1.1.2.2 bouyer * Returns 0 if initialisation is complete, 1 if still in progress but no 364 1.1.2.2 bouyer * error has been fetched, 2 if an error has been retrieved. 365 1.1.2.2 bouyer */ 366 1.1.2.2 bouyer static int 367 1.1.2.2 bouyer mlx_v3_fw_handshake(struct mlx_softc *mlx, int *error, int *param1, int *param2) 368 1.1.2.2 bouyer { 369 1.1.2.2 bouyer u_int8_t fwerror; 370 1.1.2.2 bouyer 371 1.1.2.2 bouyer /* First time around, clear any hardware completion status. */ 372 1.1.2.2 bouyer if ((mlx->mlx_flags & MLXF_FW_INITTED) == 0) { 373 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_IDB, MLX_V3_IDB_SACK); 374 1.1.2.2 bouyer DELAY(1000); 375 1.1.2.2 bouyer mlx->mlx_flags |= MLXF_FW_INITTED; 376 1.1.2.2 bouyer } 377 1.1.2.2 bouyer 378 1.1.2.2 bouyer /* Init in progress? */ 379 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V3REG_IDB) & MLX_V3_IDB_INIT_BUSY) == 0) 380 1.1.2.2 bouyer return (0); 381 1.1.2.2 bouyer 382 1.1.2.2 bouyer /* Test error value. */ 383 1.1.2.2 bouyer fwerror = mlx_inb(mlx, MLX_V3REG_FWERROR); 384 1.1.2.2 bouyer 385 1.1.2.2 bouyer if ((fwerror & MLX_V3_FWERROR_PEND) == 0) 386 1.1.2.2 bouyer return (1); 387 1.1.2.2 bouyer 388 1.1.2.2 bouyer /* Mask status pending bit, fetch status. */ 389 1.1.2.2 bouyer *error = fwerror & ~MLX_V3_FWERROR_PEND; 390 1.1.2.2 bouyer *param1 = mlx_inb(mlx, MLX_V3REG_FWERROR_PARAM1); 391 1.1.2.2 bouyer *param2 = mlx_inb(mlx, MLX_V3REG_FWERROR_PARAM2); 392 1.1.2.2 bouyer 393 1.1.2.2 bouyer /* Acknowledge. */ 394 1.1.2.2 bouyer mlx_outb(mlx, MLX_V3REG_FWERROR, 0); 395 1.1.2.2 bouyer 396 1.1.2.2 bouyer return (2); 397 1.1.2.2 bouyer } 398 1.1.2.2 bouyer 399 1.1.2.2 bouyer /* 400 1.1.2.2 bouyer * ================= V4 interface linkage ================= 401 1.1.2.2 bouyer */ 402 1.1.2.2 bouyer 403 1.1.2.2 bouyer /* 404 1.1.2.2 bouyer * Try to give (mc) to the controller. Returns 1 if successful, 0 on 405 1.1.2.2 bouyer * failure (the controller is not ready to take a command). 406 1.1.2.2 bouyer * 407 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 408 1.1.2.2 bouyer */ 409 1.1.2.2 bouyer static int 410 1.1.2.2 bouyer mlx_v4_submit(struct mlx_softc *mlx, struct mlx_ccb *mc) 411 1.1.2.2 bouyer { 412 1.1.2.2 bouyer 413 1.1.2.2 bouyer /* Ready for our command? */ 414 1.1.2.2 bouyer if ((mlx_inl(mlx, MLX_V4REG_IDB) & MLX_V4_IDB_FULL) == 0) { 415 1.1.2.2 bouyer /* Copy mailbox data to window. */ 416 1.1.2.2 bouyer bus_space_write_region_4(mlx->mlx_iot, mlx->mlx_ioh, 417 1.1.2.2 bouyer MLX_V4REG_MAILBOX, mc->mc_mbox, MLX_V4_MAILBOX_LEN >> 2); 418 1.1.2.2 bouyer bus_space_barrier(mlx->mlx_iot, mlx->mlx_ioh, 419 1.1.2.2 bouyer MLX_V4REG_MAILBOX, MLX_V4_MAILBOX_LEN, 420 1.1.2.2 bouyer BUS_SPACE_BARRIER_WRITE); 421 1.1.2.2 bouyer 422 1.1.2.2 bouyer /* Post command. */ 423 1.1.2.2 bouyer mlx_outl(mlx, MLX_V4REG_IDB, MLX_V4_IDB_HWMBOX_CMD); 424 1.1.2.2 bouyer return (1); 425 1.1.2.2 bouyer } 426 1.1.2.2 bouyer 427 1.1.2.2 bouyer return (0); 428 1.1.2.2 bouyer } 429 1.1.2.2 bouyer 430 1.1.2.2 bouyer /* 431 1.1.2.2 bouyer * See if a command has been completed, if so acknowledge its completion and 432 1.1.2.2 bouyer * recover the slot number and status code. 433 1.1.2.2 bouyer * 434 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 435 1.1.2.2 bouyer */ 436 1.1.2.2 bouyer static int 437 1.1.2.2 bouyer mlx_v4_findcomplete(struct mlx_softc *mlx, u_int *slot, u_int *status) 438 1.1.2.2 bouyer { 439 1.1.2.2 bouyer 440 1.1.2.2 bouyer /* Status available? */ 441 1.1.2.2 bouyer if ((mlx_inl(mlx, MLX_V4REG_ODB) & MLX_V4_ODB_HWSAVAIL) != 0) { 442 1.1.2.2 bouyer *slot = mlx_inb(mlx, MLX_V4REG_STATUS_IDENT); 443 1.1.2.2 bouyer *status = mlx_inw(mlx, MLX_V4REG_STATUS); 444 1.1.2.2 bouyer 445 1.1.2.2 bouyer /* Acknowledge completion. */ 446 1.1.2.2 bouyer mlx_outl(mlx, MLX_V4REG_ODB, MLX_V4_ODB_HWMBOX_ACK); 447 1.1.2.2 bouyer mlx_outl(mlx, MLX_V4REG_IDB, MLX_V4_IDB_SACK); 448 1.1.2.2 bouyer return (1); 449 1.1.2.2 bouyer } 450 1.1.2.2 bouyer 451 1.1.2.2 bouyer return (0); 452 1.1.2.2 bouyer } 453 1.1.2.2 bouyer 454 1.1.2.2 bouyer /* 455 1.1.2.2 bouyer * Enable/disable interrupts as requested. 456 1.1.2.2 bouyer * 457 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 458 1.1.2.2 bouyer */ 459 1.1.2.2 bouyer static void 460 1.1.2.2 bouyer mlx_v4_intaction(struct mlx_softc *mlx, int action) 461 1.1.2.2 bouyer { 462 1.1.2.2 bouyer u_int32_t ier; 463 1.1.2.2 bouyer 464 1.1.2.2 bouyer if (!action) 465 1.1.2.2 bouyer ier = MLX_V4_IE_MASK | MLX_V4_IE_DISINT; 466 1.1.2.2 bouyer else 467 1.1.2.2 bouyer ier = MLX_V4_IE_MASK & ~MLX_V4_IE_DISINT; 468 1.1.2.2 bouyer 469 1.1.2.2 bouyer mlx_outl(mlx, MLX_V4REG_IE, ier); 470 1.1.2.2 bouyer } 471 1.1.2.2 bouyer 472 1.1.2.2 bouyer /* 473 1.1.2.2 bouyer * Poll for firmware error codes during controller initialisation. 474 1.1.2.2 bouyer * 475 1.1.2.2 bouyer * Returns 0 if initialisation is complete, 1 if still in progress but no 476 1.1.2.2 bouyer * error has been fetched, 2 if an error has been retrieved. 477 1.1.2.2 bouyer */ 478 1.1.2.2 bouyer static int 479 1.1.2.2 bouyer mlx_v4_fw_handshake(struct mlx_softc *mlx, int *error, int *param1, int *param2) 480 1.1.2.2 bouyer { 481 1.1.2.2 bouyer u_int8_t fwerror; 482 1.1.2.2 bouyer 483 1.1.2.2 bouyer /* First time around, clear any hardware completion status. */ 484 1.1.2.2 bouyer if ((mlx->mlx_flags & MLXF_FW_INITTED) == 0) { 485 1.1.2.2 bouyer mlx_outl(mlx, MLX_V4REG_IDB, MLX_V4_IDB_SACK); 486 1.1.2.2 bouyer DELAY(1000); 487 1.1.2.2 bouyer mlx->mlx_flags |= MLXF_FW_INITTED; 488 1.1.2.2 bouyer } 489 1.1.2.2 bouyer 490 1.1.2.2 bouyer /* Init in progress? */ 491 1.1.2.2 bouyer if ((mlx_inl(mlx, MLX_V4REG_IDB) & MLX_V4_IDB_INIT_BUSY) == 0) 492 1.1.2.2 bouyer return (0); 493 1.1.2.2 bouyer 494 1.1.2.2 bouyer /* Test error value */ 495 1.1.2.2 bouyer fwerror = mlx_inb(mlx, MLX_V4REG_FWERROR); 496 1.1.2.2 bouyer if ((fwerror & MLX_V4_FWERROR_PEND) == 0) 497 1.1.2.2 bouyer return (1); 498 1.1.2.2 bouyer 499 1.1.2.2 bouyer /* Mask status pending bit, fetch status. */ 500 1.1.2.2 bouyer *error = fwerror & ~MLX_V4_FWERROR_PEND; 501 1.1.2.2 bouyer *param1 = mlx_inb(mlx, MLX_V4REG_FWERROR_PARAM1); 502 1.1.2.2 bouyer *param2 = mlx_inb(mlx, MLX_V4REG_FWERROR_PARAM2); 503 1.1.2.2 bouyer 504 1.1.2.2 bouyer /* Acknowledge. */ 505 1.1.2.2 bouyer mlx_outb(mlx, MLX_V4REG_FWERROR, 0); 506 1.1.2.2 bouyer 507 1.1.2.2 bouyer return (2); 508 1.1.2.2 bouyer } 509 1.1.2.2 bouyer 510 1.1.2.2 bouyer /* 511 1.1.2.2 bouyer * ================= V5 interface linkage ================= 512 1.1.2.2 bouyer */ 513 1.1.2.2 bouyer 514 1.1.2.2 bouyer /* 515 1.1.2.2 bouyer * Try to give (mc) to the controller. Returns 1 if successful, 0 on failure 516 1.1.2.2 bouyer * (the controller is not ready to take a command). 517 1.1.2.2 bouyer * 518 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 519 1.1.2.2 bouyer */ 520 1.1.2.2 bouyer static int 521 1.1.2.2 bouyer mlx_v5_submit(struct mlx_softc *mlx, struct mlx_ccb *mc) 522 1.1.2.2 bouyer { 523 1.1.2.2 bouyer 524 1.1.2.2 bouyer /* Ready for our command? */ 525 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V5REG_IDB) & MLX_V5_IDB_EMPTY) != 0) { 526 1.1.2.2 bouyer /* Copy mailbox data to window. */ 527 1.1.2.2 bouyer bus_space_write_region_4(mlx->mlx_iot, mlx->mlx_ioh, 528 1.1.2.2 bouyer MLX_V5REG_MAILBOX, mc->mc_mbox, MLX_V5_MAILBOX_LEN >> 2); 529 1.1.2.2 bouyer bus_space_barrier(mlx->mlx_iot, mlx->mlx_ioh, 530 1.1.2.2 bouyer MLX_V5REG_MAILBOX, MLX_V5_MAILBOX_LEN, 531 1.1.2.2 bouyer BUS_SPACE_BARRIER_WRITE); 532 1.1.2.2 bouyer 533 1.1.2.2 bouyer /* Post command */ 534 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_IDB, MLX_V5_IDB_HWMBOX_CMD); 535 1.1.2.2 bouyer return (1); 536 1.1.2.2 bouyer } 537 1.1.2.2 bouyer 538 1.1.2.2 bouyer return (0); 539 1.1.2.2 bouyer } 540 1.1.2.2 bouyer 541 1.1.2.2 bouyer /* 542 1.1.2.2 bouyer * See if a command has been completed, if so acknowledge its completion and 543 1.1.2.2 bouyer * recover the slot number and status code. 544 1.1.2.2 bouyer * 545 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 546 1.1.2.2 bouyer */ 547 1.1.2.2 bouyer static int 548 1.1.2.2 bouyer mlx_v5_findcomplete(struct mlx_softc *mlx, u_int *slot, u_int *status) 549 1.1.2.2 bouyer { 550 1.1.2.2 bouyer 551 1.1.2.2 bouyer /* Status available? */ 552 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V5REG_ODB) & MLX_V5_ODB_HWSAVAIL) != 0) { 553 1.1.2.2 bouyer *slot = mlx_inb(mlx, MLX_V5REG_STATUS_IDENT); 554 1.1.2.2 bouyer *status = mlx_inw(mlx, MLX_V5REG_STATUS); 555 1.1.2.2 bouyer 556 1.1.2.2 bouyer /* Acknowledge completion. */ 557 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_ODB, MLX_V5_ODB_HWMBOX_ACK); 558 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_IDB, MLX_V5_IDB_SACK); 559 1.1.2.2 bouyer return (1); 560 1.1.2.2 bouyer } 561 1.1.2.2 bouyer 562 1.1.2.2 bouyer return (0); 563 1.1.2.2 bouyer } 564 1.1.2.2 bouyer 565 1.1.2.2 bouyer /* 566 1.1.2.2 bouyer * Enable/disable interrupts as requested. 567 1.1.2.2 bouyer * 568 1.1.2.2 bouyer * Must be called at splbio or in a fashion that prevents reentry. 569 1.1.2.2 bouyer */ 570 1.1.2.2 bouyer static void 571 1.1.2.2 bouyer mlx_v5_intaction(struct mlx_softc *mlx, int action) 572 1.1.2.2 bouyer { 573 1.1.2.2 bouyer u_int8_t ier; 574 1.1.2.2 bouyer 575 1.1.2.2 bouyer if (!action) 576 1.1.2.2 bouyer ier = 0xff & MLX_V5_IE_DISINT; 577 1.1.2.2 bouyer else 578 1.1.2.2 bouyer ier = 0xff & ~MLX_V5_IE_DISINT; 579 1.1.2.2 bouyer 580 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_IE, ier); 581 1.1.2.2 bouyer } 582 1.1.2.2 bouyer 583 1.1.2.2 bouyer /* 584 1.1.2.2 bouyer * Poll for firmware error codes during controller initialisation. 585 1.1.2.2 bouyer * 586 1.1.2.2 bouyer * Returns 0 if initialisation is complete, 1 if still in progress but no 587 1.1.2.2 bouyer * error has been fetched, 2 if an error has been retrieved. 588 1.1.2.2 bouyer */ 589 1.1.2.2 bouyer static int 590 1.1.2.2 bouyer mlx_v5_fw_handshake(struct mlx_softc *mlx, int *error, int *param1, int *param2) 591 1.1.2.2 bouyer { 592 1.1.2.2 bouyer u_int8_t fwerror; 593 1.1.2.2 bouyer 594 1.1.2.2 bouyer /* First time around, clear any hardware completion status. */ 595 1.1.2.2 bouyer if ((mlx->mlx_flags & MLXF_FW_INITTED) == 0) { 596 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_IDB, MLX_V5_IDB_SACK); 597 1.1.2.2 bouyer DELAY(1000); 598 1.1.2.2 bouyer mlx->mlx_flags |= MLXF_FW_INITTED; 599 1.1.2.2 bouyer } 600 1.1.2.2 bouyer 601 1.1.2.2 bouyer /* Init in progress? */ 602 1.1.2.2 bouyer if ((mlx_inb(mlx, MLX_V5REG_IDB) & MLX_V5_IDB_INIT_DONE) != 0) 603 1.1.2.2 bouyer return (0); 604 1.1.2.2 bouyer 605 1.1.2.2 bouyer /* Test for error value. */ 606 1.1.2.2 bouyer fwerror = mlx_inb(mlx, MLX_V5REG_FWERROR); 607 1.1.2.2 bouyer if ((fwerror & MLX_V5_FWERROR_PEND) == 0) 608 1.1.2.2 bouyer return (1); 609 1.1.2.2 bouyer 610 1.1.2.2 bouyer /* Mask status pending bit, fetch status. */ 611 1.1.2.2 bouyer *error = fwerror & ~MLX_V5_FWERROR_PEND; 612 1.1.2.2 bouyer *param1 = mlx_inb(mlx, MLX_V5REG_FWERROR_PARAM1); 613 1.1.2.2 bouyer *param2 = mlx_inb(mlx, MLX_V5REG_FWERROR_PARAM2); 614 1.1.2.2 bouyer 615 1.1.2.2 bouyer /* Acknowledge. */ 616 1.1.2.2 bouyer mlx_outb(mlx, MLX_V5REG_FWERROR, 0xff); 617 1.1.2.2 bouyer 618 1.1.2.2 bouyer return (2); 619 1.1.2.2 bouyer } 620
Indexes created Tue Sep 30 07:10:03 GMT 2025