From 037e16396df671074fca9e0348626b724d2c2960 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 9 Aug 2006 21:05:32 +0000 Subject: 2006-08-09 Kolja Waschk * configure.ac: New port to Altera NIOS II. * nios2/.cvsignore, nios2/Makefile.am, nios2/README, nios2/bridges.c, nios2/bridges.h, nios2/clocks.c, nios2/clocks.h, nios2/configure.ac, nios2/devices.c, nios2/devices.h, nios2/nios2gen.c, nios2/output.c, nios2/output.h, nios2/ptf.c, nios2/ptf.h: New files. --- tools/cpu/nios2/devices.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 tools/cpu/nios2/devices.c (limited to 'tools/cpu/nios2/devices.c') diff --git a/tools/cpu/nios2/devices.c b/tools/cpu/nios2/devices.c new file mode 100644 index 0000000000..112191f487 --- /dev/null +++ b/tools/cpu/nios2/devices.c @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#include +#include +#include + +#include "ptf.h" +#include "bridges.h" +#include "devices.h" + +void add_device(device_desc **dl, struct ptf *dev) +{ + device_desc *eds; + + for(eds = *dl; eds; eds = eds->next) + { + if(eds->ptf == dev) + { + eds->slaves++; + return; + }; + }; + + eds = (device_desc *)malloc(sizeof(device_desc)); + eds->slaves = 1; + eds->ptf = dev; + eds->next = *dl; + *dl = eds; +} + +void check_and_add_device(struct ptf_item *pi, void *arg) +{ + struct ptf *module = pi->item[pi->level-3]; + struct ptf *sysinfo = pi->item[pi->level-2]; + char *master_name = pi->item[pi->level]->value; + + struct { char *dm; char *im; device_desc **dl; bus_bridge_pair *bridges; } *dinfo = arg; + + if(is_bridged(dinfo->dm, master_name, dinfo->bridges) || + is_bridged(dinfo->im, master_name, dinfo->bridges)) + { + struct ptf *ni = ptf_alloc_item(item, "N2G_Selected", "1"); + if(ni != NULL) + { + ni->next = sysinfo->sub; + sysinfo->sub = ni; + }; + add_device(dinfo->dl, module); + }; +} + +void set_dev_cfgname(struct ptf_item *pi, void *arg) +{ + device_desc *dev = arg; + dev->cfgname = pi->item[pi->level]->name; +} + + +device_desc *find_devices( + struct ptf *ptf, + struct ptf *cfg, + struct ptf *cpu, + bus_bridge_pair *bridges) +{ + struct ptf system = { section, "SYSTEM", 0, 0, 0 }; + struct ptf module = { section, "MODULE", 0, 0, 0 }; + struct ptf slave = { section, "SLAVE", 0, 0, 0 }; + struct ptf syb = { section, "SYSTEM_BUILDER_INFO", 0, 0, 0 }; + struct ptf maby = { section, "MASTERED_BY", 0, 0, 0 }; + struct ptf_item brdg = { 5, &system, &module, &slave, &syb, &maby }; + + struct ptf modules = { section, "MODULES", 0, 0, 0 }; + struct ptf named = { item, 0, 0, 0, 0}; + struct ptf_item devcf = { 2, &modules, &named }; + + struct { char *dm; char *im; device_desc **dl; bus_bridge_pair *bridges; } dinfo; + + device_desc *found, *reverse; + + found = NULL; + + add_device(&found, cpu); /* The CPU is "self-connected", add it */ + + dinfo.dl = &found; + dinfo.bridges = bridges; + dinfo.dm = (char *)malloc(strlen(cpu->value)+13); + dinfo.im = (char *)malloc(strlen(cpu->value)+20); + + strcpy(dinfo.im, cpu->value); + strcat(dinfo.im, "/"); + strcpy(dinfo.dm, dinfo.im); + strcat(dinfo.dm, "data_master"); + strcat(dinfo.im, "instruction_master"); + + /* "Available" is any MODULE with a SLAVE section that is MASTERED_BY + either instr_master or data_master of selected CPU, either directly + or through a bridge. See code above for more info about bridges. + */ + + ptf_match(ptf, &brdg, check_and_add_device, &dinfo); + + free(dinfo.dm); + free(dinfo.im); + + /* Reverse the linked list */ + + reverse = NULL; + while(found) + { + device_desc *tmp = found; + found = found->next; + + tmp->next = reverse; + reverse = tmp; + + named.value = tmp->ptf->value; + tmp->cfgname = NULL; + ptf_match(cfg, &devcf, set_dev_cfgname, tmp); + if(tmp->cfgname == NULL) tmp->cfgname = ptf_defused_name(tmp->ptf->value); + }; + + return reverse; +} + -- cgit v1.2.3