projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 32c96f77 MN |
1 | /* |
| 2 | * Copyright (C) 2001 Dave Engebretsen IBM Corporation | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License as published by | |
| 6 | * the Free Software Foundation; either version 2 of the License, or | |
| 7 | * (at your option) any later version. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #include <asm/prom.h> | |
| 20 | ||
| 21 | #include "pseries.h" | |
| 22 | ||
| 23 | void request_event_sources_irqs(struct device_node *np, | |
| 24 | irq_handler_t handler, | |
| 25 | const char *name) | |
| 26 | { | |
| 27 | int i, index, count = 0; | |
| 530210c7 | 28 | struct of_phandle_args oirq; |
| 32c96f77 MN |
29 | const u32 *opicprop; |
| 30 | unsigned int opicplen; | |
| 31 | unsigned int virqs[16]; | |
| 32 | ||
| 33 | /* Check for obsolete "open-pic-interrupt" property. If present, then | |
| 34 | * map those interrupts using the default interrupt host and default | |
| 35 | * trigger | |
| 36 | */ | |
| 37 | opicprop = of_get_property(np, "open-pic-interrupt", &opicplen); | |
| 38 | if (opicprop) { | |
| 39 | opicplen /= sizeof(u32); | |
| 40 | for (i = 0; i < opicplen; i++) { | |
| 41 | if (count > 15) | |
| 42 | break; | |
| 43 | virqs[count] = irq_create_mapping(NULL, *(opicprop++)); | |
| 68581e93 MN |
44 | if (virqs[count] == NO_IRQ) { |
| 45 | pr_err("event-sources: Unable to allocate " | |
| 46 | "interrupt number for %s\n", | |
| 47 | np->full_name); | |
| 48 | WARN_ON(1); | |
| 49 | } | |
| 32c96f77 MN |
50 | else |
| 51 | count++; | |
| 52 | ||
| 53 | } | |
| 54 | } | |
| 55 | /* Else use normal interrupt tree parsing */ | |
| 56 | else { | |
| 57 | /* First try to do a proper OF tree parsing */ | |
| 0c02c800 | 58 | for (index = 0; of_irq_parse_one(np, index, &oirq) == 0; |
| 32c96f77 MN |
59 | index++) { |
| 60 | if (count > 15) | |
| 61 | break; | |
| e6d30ab1 | 62 | virqs[count] = irq_create_of_mapping(&oirq); |
| 68581e93 MN |
63 | if (virqs[count] == NO_IRQ) { |
| 64 | pr_err("event-sources: Unable to allocate " | |
| 65 | "interrupt number for %s\n", | |
| 66 | np->full_name); | |
| 67 | WARN_ON(1); | |
| 68 | } | |
| 32c96f77 MN |
69 | else |
| 70 | count++; | |
| 71 | } | |
| 72 | } | |
| 73 | ||
| 74 | /* Now request them */ | |
| 75 | for (i = 0; i < count; i++) { | |
| 76 | if (request_irq(virqs[i], handler, 0, name, NULL)) { | |
| 68581e93 MN |
77 | pr_err("event-sources: Unable to request interrupt " |
| 78 | "%d for %s\n", virqs[i], np->full_name); | |
| 79 | WARN_ON(1); | |
| 32c96f77 MN |
80 | return; |
| 81 | } | |
| 82 | } | |
| 83 | } | |
| 84 |