| Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame] | 1 | /* arch/arm/mach-msm/qdsp6/dal.h |
| 2 | * |
| 3 | * Copyright (C) 2009 Google, Inc. |
| 4 | * Author: Brian Swetland <swetland@google.com> |
| 5 | * |
| 6 | * This software is licensed under the terms of the GNU General Public |
| 7 | * License version 2, as published by the Free Software Foundation, and |
| 8 | * may be copied, distributed, and modified under those terms. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #ifndef _MACH_MSM_DAL_ |
| 18 | #define _MACH_MSM_DAL_ |
| 19 | |
| 20 | struct dal_client; |
| 21 | |
| 22 | struct dal_info { |
| 23 | uint32_t size; |
| 24 | uint32_t version; |
| 25 | char name[32]; |
| 26 | }; |
| 27 | |
| 28 | typedef void (*dal_event_func_t)(void *data, int len, void *cookie); |
| 29 | |
| 30 | struct dal_client *dal_attach(uint32_t device_id, const char *name, |
| 31 | uint32_t cpu, dal_event_func_t func, void *cookie); |
| 32 | |
| 33 | int dal_detach(struct dal_client *client); |
| 34 | |
| 35 | int dal_call(struct dal_client *client, |
| 36 | unsigned ddi, unsigned prototype, |
| 37 | void *data, int data_len, |
| 38 | void *reply, int reply_max); |
| 39 | |
| 40 | void dal_trace(struct dal_client *client); |
| 41 | void dal_trace_dump(struct dal_client *client); |
| 42 | |
| 43 | /* function to call before panic on stalled dal calls */ |
| 44 | void dal_set_oops(struct dal_client *client, void (*oops)(void)); |
| 45 | |
| 46 | /* convenience wrappers */ |
| 47 | int dal_call_f0(struct dal_client *client, uint32_t ddi, |
| 48 | uint32_t arg1); |
| 49 | int dal_call_f1(struct dal_client *client, uint32_t ddi, |
| 50 | uint32_t arg1, uint32_t arg2); |
| 51 | int dal_call_f5(struct dal_client *client, uint32_t ddi, |
| 52 | void *ibuf, uint32_t ilen); |
| 53 | int dal_call_f6(struct dal_client *client, uint32_t ddi, |
| 54 | uint32_t s1, void *ibuf, uint32_t ilen); |
| 55 | int dal_call_f9(struct dal_client *client, uint32_t ddi, |
| 56 | void *obuf, uint32_t olen); |
| 57 | int dal_call_f11(struct dal_client *client, uint32_t ddi, |
| 58 | uint32_t s1, void *obuf, uint32_t olen); |
| 59 | int dal_call_f13(struct dal_client *client, uint32_t ddi, void *ibuf1, |
| 60 | uint32_t ilen1, void *ibuf2, uint32_t ilen2, void *obuf, |
| 61 | uint32_t olen); |
| 62 | int dal_call_f14(struct dal_client *client, uint32_t ddi, void *ibuf, |
| 63 | uint32_t ilen, void *obuf1, uint32_t olen1, void *obuf2, |
| 64 | uint32_t olen2, uint32_t *oalen2); |
| 65 | |
| 66 | /* common DAL operations */ |
| 67 | enum { |
| 68 | DAL_OP_ATTACH = 0, |
| 69 | DAL_OP_DETACH, |
| 70 | DAL_OP_INIT, |
| 71 | DAL_OP_DEINIT, |
| 72 | DAL_OP_OPEN, |
| 73 | DAL_OP_CLOSE, |
| 74 | DAL_OP_INFO, |
| 75 | DAL_OP_POWEREVENT, |
| 76 | DAL_OP_SYSREQUEST, |
| 77 | DAL_OP_FIRST_DEVICE_API, |
| 78 | }; |
| 79 | |
| 80 | static inline int check_version(struct dal_client *client, uint32_t version) |
| 81 | { |
| 82 | struct dal_info info; |
| 83 | int res; |
| 84 | |
| 85 | res = dal_call_f9(client, DAL_OP_INFO, &info, sizeof(struct dal_info)); |
| 86 | if (!res) { |
| 87 | if (((info.version & 0xFFFF0000) != (version & 0xFFFF0000)) || |
| 88 | ((info.version & 0x0000FFFF) < |
| 89 | (version & 0x0000FFFF))) { |
| 90 | res = -EINVAL; |
| 91 | } |
| 92 | } |
| 93 | return res; |
| 94 | } |
| 95 | |
| 96 | #endif |