| Luciano Coelho | f5fc0f8 | 2009-08-06 16:25:28 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of wl1271 |
| 3 | * |
| 4 | * Copyright (C) 2008-2009 Nokia Corporation |
| 5 | * |
| 6 | * Contact: Luciano Coelho <luciano.coelho@nokia.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 20 | * 02110-1301 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include "wl1271.h" |
| 25 | #include "wl1271_reg.h" |
| 26 | #include "wl1271_spi.h" |
| 27 | #include "wl1271_event.h" |
| 28 | #include "wl1271_ps.h" |
| 29 | |
| 30 | static int wl1271_event_scan_complete(struct wl1271 *wl, |
| 31 | struct event_mailbox *mbox) |
| 32 | { |
| 33 | wl1271_debug(DEBUG_EVENT, "status: 0x%x", |
| 34 | mbox->scheduled_scan_status); |
| 35 | |
| 36 | if (wl->scanning) { |
| 37 | mutex_unlock(&wl->mutex); |
| 38 | ieee80211_scan_completed(wl->hw, false); |
| 39 | mutex_lock(&wl->mutex); |
| 40 | wl->scanning = false; |
| 41 | } |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | static void wl1271_event_mbox_dump(struct event_mailbox *mbox) |
| 47 | { |
| 48 | wl1271_debug(DEBUG_EVENT, "MBOX DUMP:"); |
| 49 | wl1271_debug(DEBUG_EVENT, "\tvector: 0x%x", mbox->events_vector); |
| 50 | wl1271_debug(DEBUG_EVENT, "\tmask: 0x%x", mbox->events_mask); |
| 51 | } |
| 52 | |
| 53 | static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox) |
| 54 | { |
| 55 | int ret; |
| 56 | u32 vector; |
| 57 | |
| 58 | wl1271_event_mbox_dump(mbox); |
| 59 | |
| 60 | vector = mbox->events_vector & ~(mbox->events_mask); |
| 61 | wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector); |
| 62 | |
| 63 | if (vector & SCAN_COMPLETE_EVENT_ID) { |
| 64 | ret = wl1271_event_scan_complete(wl, mbox); |
| 65 | if (ret < 0) |
| 66 | return ret; |
| 67 | } |
| 68 | |
| 69 | if (vector & BSS_LOSE_EVENT_ID) { |
| 70 | wl1271_debug(DEBUG_EVENT, "BSS_LOSE_EVENT"); |
| 71 | |
| 72 | if (wl->psm_requested && wl->psm) { |
| 73 | ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE); |
| 74 | if (ret < 0) |
| 75 | return ret; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | int wl1271_event_unmask(struct wl1271 *wl) |
| 83 | { |
| 84 | int ret; |
| 85 | |
| 86 | ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask)); |
| 87 | if (ret < 0) |
| 88 | return ret; |
| 89 | |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | void wl1271_event_mbox_config(struct wl1271 *wl) |
| 94 | { |
| 95 | wl->mbox_ptr[0] = wl1271_reg_read32(wl, REG_EVENT_MAILBOX_PTR); |
| 96 | wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox); |
| 97 | |
| 98 | wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x", |
| 99 | wl->mbox_ptr[0], wl->mbox_ptr[1]); |
| 100 | } |
| 101 | |
| 102 | int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num) |
| 103 | { |
| 104 | struct event_mailbox mbox; |
| 105 | int ret; |
| 106 | |
| 107 | wl1271_debug(DEBUG_EVENT, "EVENT on mbox %d", mbox_num); |
| 108 | |
| 109 | if (mbox_num > 1) |
| 110 | return -EINVAL; |
| 111 | |
| 112 | /* first we read the mbox descriptor */ |
| 113 | wl1271_spi_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox, |
| 114 | sizeof(struct event_mailbox)); |
| 115 | |
| 116 | /* process the descriptor */ |
| 117 | ret = wl1271_event_process(wl, &mbox); |
| 118 | if (ret < 0) |
| 119 | return ret; |
| 120 | |
| 121 | /* then we let the firmware know it can go on...*/ |
| 122 | wl1271_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK); |
| 123 | |
| 124 | return 0; |
| 125 | } |