| /* Copyright (c) 2015, 2017 The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef DIAGFWD_SMD_H |
| #define DIAGFWD_SMD_H |
| |
| #define DIAG_SMD_NAME_SZ 24 |
| #define SMD_DRAIN_BUF_SIZE 4096 |
| |
| struct diag_smd_info { |
| uint8_t peripheral; |
| uint8_t type; |
| uint8_t inited; |
| atomic_t opened; |
| atomic_t diag_state; |
| uint32_t fifo_size; |
| smd_channel_t *hdl; |
| char name[DIAG_SMD_NAME_SZ]; |
| struct mutex lock; |
| wait_queue_head_t read_wait_q; |
| struct workqueue_struct *wq; |
| struct work_struct open_work; |
| struct work_struct close_work; |
| struct work_struct read_work; |
| struct work_struct late_init_work; |
| struct diagfwd_info *fwd_ctxt; |
| }; |
| |
| extern struct diag_smd_info smd_data[NUM_PERIPHERALS]; |
| extern struct diag_smd_info smd_cntl[NUM_PERIPHERALS]; |
| extern struct diag_smd_info smd_dci[NUM_PERIPHERALS]; |
| extern struct diag_smd_info smd_cmd[NUM_PERIPHERALS]; |
| extern struct diag_smd_info smd_dci_cmd[NUM_PERIPHERALS]; |
| |
| int diag_smd_init_peripheral(uint8_t peripheral); |
| void diag_smd_exit(void); |
| int diag_smd_init(void); |
| void diag_smd_early_exit(void); |
| void diag_smd_invalidate(void *ctxt, struct diagfwd_info *fwd_ctxt); |
| int diag_smd_check_state(void *ctxt); |
| |
| #ifndef CONFIG_DIAG_USES_SMD |
| #define _diag_smd_exit(void) |
| #define _diag_smd_init(void) |
| #else |
| #define _diag_smd_exit(void) diag_smd_exit(void) |
| #define _diag_smd_init(void) diag_smd_init(void) |
| #endif |
| |
| #endif |