| Eric Holmberg | 6275b60 | 2012-11-19 13:05:04 -0700 | [diff] [blame] | 1 | /* arch/arm/mach-msm/smp2p_private_api.h |
| 2 | * |
| 3 | * Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 and |
| 7 | * only version 2 as published by the Free Software Foundation. |
| 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 | #ifndef _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_ |
| 15 | #define _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_ |
| 16 | |
| 17 | #include <linux/notifier.h> |
| 18 | |
| 19 | struct msm_smp2p_out; |
| 20 | |
| 21 | /* Maximum size of the entry name and trailing null. */ |
| 22 | #define SMP2P_MAX_ENTRY_NAME 16 |
| 23 | |
| 24 | /* Bits per entry */ |
| 25 | #define SMP2P_BITS_PER_ENTRY 32 |
| 26 | |
| 27 | /* Processor ID's */ |
| 28 | enum { |
| 29 | SMP2P_APPS_PROC = 0, |
| 30 | SMP2P_MODEM_PROC = 1, |
| 31 | SMP2P_AUDIO_PROC = 2, |
| 32 | SMP2P_RESERVED_PROC_1 = 3, |
| 33 | SMP2P_WIRELESS_PROC = 4, |
| 34 | SMP2P_RESERVED_PROC_2 = 5, |
| 35 | SMP2P_POWER_PROC = 6, |
| 36 | /* add new processors here */ |
| 37 | |
| 38 | SMP2P_REMOTE_MOCK_PROC, |
| 39 | SMP2P_NUM_PROCS, |
| 40 | }; |
| 41 | |
| 42 | /** |
| 43 | * Notification events that are passed to notifier for incoming and outgoing |
| 44 | * entries. |
| 45 | * |
| 46 | * If the @metadata argument in the notifier is non-null, then it will |
| 47 | * point to the associated struct smux_meta_* structure. |
| 48 | */ |
| 49 | enum msm_smp2p_events { |
| 50 | SMP2P_OPEN, /* data is NULL */ |
| 51 | SMP2P_ENTRY_UPDATE, /* data => struct msm_smp2p_update_notif */ |
| 52 | }; |
| 53 | |
| 54 | /** |
| 55 | * Passed in response to a SMP2P_ENTRY_UPDATE event. |
| 56 | * |
| 57 | * @prev_value: previous value of entry |
| 58 | * @current_value: latest value of entry |
| 59 | */ |
| 60 | struct msm_smp2p_update_notif { |
| 61 | uint32_t previous_value; |
| 62 | uint32_t current_value; |
| 63 | }; |
| 64 | |
| 65 | int msm_smp2p_out_open(int remote_pid, const char *entry, |
| 66 | struct notifier_block *open_notifier, |
| 67 | struct msm_smp2p_out **handle); |
| 68 | int msm_smp2p_out_close(struct msm_smp2p_out **handle); |
| 69 | int msm_smp2p_out_read(struct msm_smp2p_out *handle, uint32_t *data); |
| 70 | int msm_smp2p_out_write(struct msm_smp2p_out *handle, uint32_t data); |
| 71 | int msm_smp2p_out_modify(struct msm_smp2p_out *handle, uint32_t set_mask, |
| 72 | uint32_t clear_mask); |
| 73 | int msm_smp2p_in_read(int remote_pid, const char *entry, uint32_t *data); |
| 74 | int msm_smp2p_in_register(int remote_pid, const char *entry, |
| 75 | struct notifier_block *in_notifier); |
| 76 | int msm_smp2p_in_unregister(int remote_pid, const char *entry, |
| 77 | struct notifier_block *in_notifier); |
| 78 | |
| 79 | #endif /* _ARCH_ARM_MACH_MSM_SMP2P_PRIVATE_API_H_ */ |