Shad Ansari | 2f7f9be | 2017-06-07 13:34:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | <:copyright-BRCM:2016:DUAL/GPL:standard |
| 3 | |
| 4 | Broadcom Proprietary and Confidential.(c) 2016 Broadcom |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Unless you and Broadcom execute a separate written software license |
| 8 | agreement governing use of this software, this software is licensed |
| 9 | to you under the terms of the GNU General Public License version 2 |
| 10 | (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php, |
| 11 | with the following added to such license: |
| 12 | |
| 13 | As a special exception, the copyright holders of this software give |
| 14 | you permission to link this software with independent modules, and |
| 15 | to copy and distribute the resulting executable under terms of your |
| 16 | choice, provided that you also meet, for each linked independent |
| 17 | module, the terms and conditions of the license of that module. |
| 18 | An independent module is a module which is not derived from this |
| 19 | software. The special exception does not apply to any modifications |
| 20 | of the software. |
| 21 | |
| 22 | Not withstanding the above, under no circumstances may you combine |
| 23 | this software in any way with any other Broadcom software provided |
| 24 | under a license other than the GPL, without Broadcom's express prior |
| 25 | written consent. |
| 26 | |
| 27 | :> |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * bcmolt_dev_selector.c |
| 32 | * Set / get current device for all CLI commands |
| 33 | */ |
| 34 | #include <bcmos_system.h> |
| 35 | #include <bcmcli.h> |
| 36 | #include <bcmolt_dev_selector.h> |
| 37 | |
| 38 | /* Current device. External variable */ |
| 39 | |
| 40 | /* Device change callback registration structure */ |
| 41 | typedef struct dev_sel_subscriber dev_sel_subscriber; |
| 42 | struct dev_sel_subscriber |
| 43 | { |
| 44 | F_current_device_change_ind cb; /* Subscriber's callback */ |
| 45 | STAILQ_ENTRY(dev_sel_subscriber) next; |
| 46 | }; |
| 47 | |
| 48 | static STAILQ_HEAD(dev_sel_subscriber_list, dev_sel_subscriber) subscriber_list; |
| 49 | |
| 50 | /* Get/set the current device CLI handler |
| 51 | */ |
| 52 | static bcmos_errno _dev_sel_device_handler(bcmcli_session *session, const bcmcli_cmd_parm parm[], uint16_t nparms) |
| 53 | { |
| 54 | /* If current device was set - notify all subscribers. |
| 55 | * Do not check if it changed here. Sometimes it is good to be able |
| 56 | * to refresh. |
| 57 | */ |
| 58 | if (nparms) |
| 59 | { |
| 60 | dev_sel_subscriber *subs; |
| 61 | |
| 62 | current_device = parm[0].value.number; |
| 63 | |
| 64 | /* Notify all subscribers */ |
| 65 | STAILQ_FOREACH(subs, &subscriber_list, next) |
| 66 | { |
| 67 | subs->cb(session, current_device); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | bcmcli_session_print(session, "Current device: %ld\n", (long)current_device); |
| 72 | |
| 73 | return BCM_ERR_OK; |
| 74 | } |
| 75 | |
| 76 | |
| 77 | /* Register for current device change notification. |
| 78 | * Multiple clients can register. |
| 79 | */ |
| 80 | bcmos_errno bcmolt_dev_sel_ind_register(F_current_device_change_ind cb) |
| 81 | { |
| 82 | dev_sel_subscriber *subs = bcmos_calloc(sizeof(dev_sel_subscriber)); |
| 83 | |
| 84 | if (!subs) |
| 85 | return BCM_ERR_NOMEM; |
| 86 | |
| 87 | subs->cb = cb; |
| 88 | STAILQ_INSERT_TAIL(&subscriber_list, subs, next); |
| 89 | |
| 90 | return BCM_ERR_OK; |
| 91 | } |
| 92 | |
| 93 | /* Initialize device selector module */ |
| 94 | bcmos_errno bcmolt_dev_sel_init(bcmcli_entry *parent_dir) |
| 95 | { |
| 96 | STAILQ_INIT(&subscriber_list); |
| 97 | |
| 98 | /* Get/set current device */ |
| 99 | BCMCLI_MAKE_CMD(parent_dir, "device", "Get/Set the current device", _dev_sel_device_handler, |
| 100 | BCMCLI_MAKE_PARM_RANGE("device", "Device index", BCMCLI_PARM_NUMBER, BCMCLI_PARM_FLAG_OPTIONAL, |
| 101 | 0, BCMTR_MAX_OLTS-1)); |
| 102 | |
| 103 | return BCM_ERR_OK; |
| 104 | } |
| 105 | |
| 106 | |