projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| af935746 KD |
1 | /* |
| 2 | * drivers/media/video/samsung/mfc5/s5p_mfc_intr.c | |
| 3 | * | |
| 4 | * C file for Samsung MFC (Multi Function Codec - FIMV) driver | |
| 5 | * This file contains functions used to wait for command completion. | |
| 6 | * | |
| 7 | * Kamil Debski, Copyright (C) 2011 Samsung Electronics Co., Ltd. | |
| 8 | * http://www.samsung.com/ | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License version 2 as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/delay.h> | |
| 16 | #include <linux/errno.h> | |
| 17 | #include <linux/io.h> | |
| 18 | #include <linux/sched.h> | |
| 19 | #include <linux/wait.h> | |
| 20 | #include "regs-mfc.h" | |
| 21 | #include "s5p_mfc_common.h" | |
| 22 | #include "s5p_mfc_debug.h" | |
| 23 | #include "s5p_mfc_intr.h" | |
| 24 | ||
| 25 | int s5p_mfc_wait_for_done_dev(struct s5p_mfc_dev *dev, int command) | |
| 26 | { | |
| 27 | int ret; | |
| 28 | ||
| 29 | ret = wait_event_interruptible_timeout(dev->queue, | |
| 30 | (dev->int_cond && (dev->int_type == command | |
| 31 | || dev->int_type == S5P_FIMV_R2H_CMD_ERR_RET)), | |
| 32 | msecs_to_jiffies(MFC_INT_TIMEOUT)); | |
| 33 | if (ret == 0) { | |
| 34 | mfc_err("Interrupt (dev->int_type:%d, command:%d) timed out\n", | |
| 35 | dev->int_type, command); | |
| 36 | return 1; | |
| 37 | } else if (ret == -ERESTARTSYS) { | |
| 38 | mfc_err("Interrupted by a signal\n"); | |
| 39 | return 1; | |
| 40 | } | |
| 41 | mfc_debug(1, "Finished waiting (dev->int_type:%d, command: %d)\n", | |
| 42 | dev->int_type, command); | |
| 43 | if (dev->int_type == S5P_FIMV_R2H_CMD_ERR_RET) | |
| 44 | return 1; | |
| 45 | return 0; | |
| 46 | } | |
| 47 | ||
| 48 | void s5p_mfc_clean_dev_int_flags(struct s5p_mfc_dev *dev) | |
| 49 | { | |
| 50 | dev->int_cond = 0; | |
| 51 | dev->int_type = 0; | |
| 52 | dev->int_err = 0; | |
| 53 | } | |
| 54 | ||
| 55 | int s5p_mfc_wait_for_done_ctx(struct s5p_mfc_ctx *ctx, | |
| 56 | int command, int interrupt) | |
| 57 | { | |
| 58 | int ret; | |
| 59 | ||
| 60 | if (interrupt) { | |
| 61 | ret = wait_event_interruptible_timeout(ctx->queue, | |
| 62 | (ctx->int_cond && (ctx->int_type == command | |
| 63 | || ctx->int_type == S5P_FIMV_R2H_CMD_ERR_RET)), | |
| 64 | msecs_to_jiffies(MFC_INT_TIMEOUT)); | |
| 65 | } else { | |
| 66 | ret = wait_event_timeout(ctx->queue, | |
| 67 | (ctx->int_cond && (ctx->int_type == command | |
| 68 | || ctx->int_type == S5P_FIMV_R2H_CMD_ERR_RET)), | |
| 69 | msecs_to_jiffies(MFC_INT_TIMEOUT)); | |
| 70 | } | |
| 71 | if (ret == 0) { | |
| 72 | mfc_err("Interrupt (ctx->int_type:%d, command:%d) timed out\n", | |
| 73 | ctx->int_type, command); | |
| 74 | return 1; | |
| 75 | } else if (ret == -ERESTARTSYS) { | |
| 76 | mfc_err("Interrupted by a signal\n"); | |
| 77 | return 1; | |
| 78 | } | |
| 79 | mfc_debug(1, "Finished waiting (ctx->int_type:%d, command: %d)\n", | |
| 80 | ctx->int_type, command); | |
| 81 | if (ctx->int_type == S5P_FIMV_R2H_CMD_ERR_RET) | |
| 82 | return 1; | |
| 83 | return 0; | |
| 84 | } | |
| 85 | ||
| 86 | void s5p_mfc_clean_ctx_int_flags(struct s5p_mfc_ctx *ctx) | |
| 87 | { | |
| 88 | ctx->int_cond = 0; | |
| 89 | ctx->int_type = 0; | |
| 90 | ctx->int_err = 0; | |
| 91 | } | |
| 92 |