1/* $OpenBSD: dma_sbus.c,v 1.12 2005/03/03 01:41:45 miod Exp $ */ 2/* $NetBSD: dma_sbus.c,v 1.5 2000/07/09 20:57:42 pk Exp $ */ 3 4/*- 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation --- 49 unchanged lines hidden (view full) --- 58 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 62 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 */ 64 65#include <sys/cdefs.h> |
66__FBSDID("$FreeBSD: head/sys/sparc64/sbus/dma_sbus.c 152684 2005-11-22 16:39:44Z marius $"); |
67 68#include <sys/param.h> 69#include <sys/systm.h> 70#include <sys/bus.h> 71#include <sys/kernel.h> 72#include <sys/module.h> 73#include <sys/resource.h> 74#include <sys/rman.h> 75 76#include <dev/ofw/ofw_bus.h> |
77#include <dev/ofw/ofw_bus_subr.h> |
78#include <dev/ofw/openfirm.h> 79 80#include <machine/bus.h> 81#include <machine/bus_common.h> 82#include <machine/resource.h> 83 84#include <sparc64/sbus/lsi64854reg.h> 85#include <sparc64/sbus/lsi64854var.h> 86#include <sparc64/sbus/ofw_sbus.h> 87#include <sparc64/sbus/sbusreg.h> 88#include <sparc64/sbus/sbusvar.h> 89 90struct dma_devinfo { |
91 struct ofw_bus_devinfo ddi_obdinfo; |
92 struct resource_list ddi_rl; 93}; 94 95struct dma_softc { 96 struct lsi64854_softc sc_lsi64854; /* base device */ 97 int sc_ign; 98 int sc_slot; 99}; 100 101static devclass_t dma_devclass; 102 103static device_probe_t dma_probe; 104static device_attach_t dma_attach; 105static bus_print_child_t dma_print_child; 106static bus_probe_nomatch_t dma_probe_nomatch; 107static bus_get_resource_list_t dma_get_resource_list; 108#if 0 109static bus_setup_intr_t dma_setup_intr; 110#endif |
111static ofw_bus_get_devinfo_t dma_get_devinfo; |
112 |
113static struct dma_devinfo *dma_setup_dinfo(device_t, struct dma_softc *, 114 phandle_t); |
115static void dma_destroy_dinfo(struct dma_devinfo *); |
116static int dma_print_res(struct dma_devinfo *); |
117 118static device_method_t dma_methods[] = { 119 /* Device interface */ 120 DEVMETHOD(device_probe, dma_probe), 121 DEVMETHOD(device_attach, dma_attach), 122 123 /* Bus interface */ 124 DEVMETHOD(bus_print_child, dma_print_child), --- 7 unchanged lines hidden (view full) --- 132 DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource), 133 DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), 134 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 135 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 136 DEVMETHOD(bus_get_resource_list, dma_get_resource_list), 137 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 138 139 /* ofw_bus interface */ |
140 DEVMETHOD(ofw_bus_get_devinfo, dma_get_devinfo), 141 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 142 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 143 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 144 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 145 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), |
146 147 { 0, 0 } 148}; 149 150static driver_t dma_driver = { 151 "dma", 152 dma_methods, 153 sizeof(struct dma_softc), --- 18 unchanged lines hidden (view full) --- 172static int 173dma_attach(device_t dev) 174{ 175 struct dma_softc *dsc; 176 struct lsi64854_softc *lsc; 177 struct dma_devinfo *ddi; 178 device_t cdev; 179 const char *name; |
180 char *cabletype; |
181 uint32_t csr; 182 phandle_t child, node; 183 int error, burst, children; 184 185 dsc = device_get_softc(dev); |
186 lsc = &dsc->sc_lsi64854; 187 188 name = ofw_bus_get_name(dev); 189 node = ofw_bus_get_node(dev); 190 dsc->sc_ign = sbus_get_ign(dev); 191 dsc->sc_slot = sbus_get_slot(dev); 192 193 lsc->sc_rid = 0; --- 63 unchanged lines hidden (view full) --- 257 if (error != 0) { 258 device_printf(dev, "lsi64854_attach failed\n"); 259 goto fail_lpdma; 260 } 261 262 /* Attach children. */ 263 children = 0; 264 for (child = OF_child(node); child != 0; child = OF_peer(child)) { |
265 if ((ddi = dma_setup_dinfo(dev, dsc, child)) == NULL) |
266 continue; |
267 if (children != 0) { |
268 device_printf(dev, 269 "<%s>: only one child per DMA channel supported\n", 270 ddi->ddi_obdinfo.obd_name); |
271 dma_destroy_dinfo(ddi); |
272 continue; 273 } 274 if ((cdev = device_add_child(dev, NULL, -1)) == NULL) { 275 device_printf(dev, "<%s>: device_add_child failed\n", |
276 ddi->ddi_obdinfo.obd_name); |
277 dma_destroy_dinfo(ddi); |
278 continue; 279 } 280 device_set_ivars(cdev, ddi); 281 children++; 282 } |
283 return (bus_generic_attach(dev)); |
284 |
285 fail_lpdma: 286 bus_dma_tag_destroy(lsc->sc_parent_dmat); 287 fail_lres: 288 bus_release_resource(dev, SYS_RES_MEMORY, lsc->sc_rid, lsc->sc_res); 289 return (error); 290} 291 292static struct dma_devinfo * |
293dma_setup_dinfo(device_t dev, struct dma_softc *dsc, phandle_t node) |
294{ |
295 struct dma_devinfo *ddi; 296 struct sbus_regs *reg; 297 uint32_t base, iv, *intr; 298 int i, nreg, nintr, slot, rslot; 299 |
300 ddi = malloc(sizeof(*ddi), M_DEVBUF, M_WAITOK | M_ZERO); |
301 if (ofw_bus_gen_setup_devinfo(&ddi->ddi_obdinfo, node) != 0) { 302 free(ddi, M_DEVBUF); |
303 return (NULL); |
304 } |
305 resource_list_init(&ddi->ddi_rl); |
306 slot = -1; 307 nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 308 if (nreg == -1) { |
309 device_printf(dev, "<%s>: incomplete\n", 310 ddi->ddi_obdinfo.obd_name); 311 goto fail; |
312 } 313 for (i = 0; i < nreg; i++) { 314 base = reg[i].sbr_offset; 315 if (SBUS_ABS(base)) { 316 rslot = SBUS_ABS_TO_SLOT(base); 317 base = SBUS_ABS_TO_OFFSET(base); 318 } else 319 rslot = reg[i].sbr_slot; 320 if (slot != -1 && slot != rslot) { |
321 device_printf(dev, "<%s>: multiple slots\n", 322 ddi->ddi_obdinfo.obd_name); |
323 free(reg, M_OFWPROP); |
324 goto fail; |
325 } 326 slot = rslot; 327 328 resource_list_add(&ddi->ddi_rl, SYS_RES_MEMORY, i, base, 329 base + reg[i].sbr_size, reg[i].sbr_size); 330 } 331 free(reg, M_OFWPROP); 332 if (slot != dsc->sc_slot) { 333 device_printf(dev, "<%s>: parent and child slot do not match\n", |
334 ddi->ddi_obdinfo.obd_name); 335 goto fail; |
336 } 337 338 /* 339 * The `interrupts' property contains the SBus interrupt level. 340 */ 341 nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 342 (void **)&intr); 343 if (nintr != -1) { --- 8 unchanged lines hidden (view full) --- 352 /* Set the IGN as appropriate. */ 353 iv |= dsc->sc_ign << INTMAP_IGN_SHIFT; 354 resource_list_add(&ddi->ddi_rl, SYS_RES_IRQ, i, 355 iv, iv, 1); 356 } 357 free(intr, M_OFWPROP); 358 } 359 return (ddi); |
360 361 fail: 362 dma_destroy_dinfo(ddi); 363 return (NULL); |
364} 365 366static void 367dma_destroy_dinfo(struct dma_devinfo *dinfo) 368{ 369 370 resource_list_free(&dinfo->ddi_rl); |
371 ofw_bus_gen_destroy_devinfo(&dinfo->ddi_obdinfo); |
372 free(dinfo, M_DEVBUF); 373} 374 375static int 376dma_print_child(device_t dev, device_t child) 377{ |
378 int rv; 379 |
380 rv = bus_print_child_header(dev, child); |
381 rv += dma_print_res(device_get_ivars(child)); |
382 rv += bus_print_child_footer(dev, child); 383 return (rv); 384} 385 386static void 387dma_probe_nomatch(device_t dev, device_t child) 388{ |
389 const char *type; |
390 |
391 device_printf(dev, "<%s>", ofw_bus_get_name(child)); 392 dma_print_res(device_get_ivars(child)); 393 type = ofw_bus_get_type(child); 394 printf(" type %s (no driver attached)\n", 395 type != NULL ? type : "unknown"); |
396} 397 398static struct resource_list * 399dma_get_resource_list(device_t dev, device_t child) 400{ 401 struct dma_devinfo *ddi; 402 403 ddi = device_get_ivars(child); --- 16 unchanged lines hidden (view full) --- 420 arg = sc; 421 } 422 423 return (BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, 424 intr, arg, cookiep)); 425} 426#endif 427 |
428static const struct ofw_bus_devinfo * 429dma_get_devinfo(device_t bus, device_t child) |
430{ |
431 struct dma_devinfo *ddi; |
432 |
433 ddi = device_get_ivars(child); 434 return (&ddi->ddi_obdinfo); |
435} 436 |
437static int 438dma_print_res(struct dma_devinfo *ddi) |
439{ |
440 int rv; |
441 |
442 rv = 0; 443 rv += resource_list_print_type(&ddi->ddi_rl, "mem", SYS_RES_MEMORY, 444 "%#lx"); 445 rv += resource_list_print_type(&ddi->ddi_rl, "irq", SYS_RES_IRQ, "%ld"); 446 return (rv); |
447} |