1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* linux/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c
*
* Copyright (C) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "regs-mfc.h"
#include "s5p_mfc_cmd.h"
#include "s5p_mfc_common.h"
#include "s5p_mfc_debug.h"
/* This function is used to send a command to the MFC */
int s5p_mfc_cmd_host2risc_v5(struct s5p_mfc_dev *dev, int cmd,
struct s5p_mfc_cmd_args *args)
{
int cur_cmd;
unsigned long timeout;
timeout = jiffies + msecs_to_jiffies(MFC_BW_TIMEOUT);
/* wait until host to risc command register becomes 'H2R_CMD_EMPTY' */
do {
if (time_after(jiffies, timeout)) {
mfc_err("Timeout while waiting for hardware\n");
return -EIO;
}
cur_cmd = mfc_read(dev, S5P_FIMV_HOST2RISC_CMD);
} while (cur_cmd != S5P_FIMV_H2R_CMD_EMPTY);
mfc_write(dev, args->arg[0], S5P_FIMV_HOST2RISC_ARG1);
mfc_write(dev, args->arg[1], S5P_FIMV_HOST2RISC_ARG2);
mfc_write(dev, args->arg[2], S5P_FIMV_HOST2RISC_ARG3);
mfc_write(dev, args->arg[3], S5P_FIMV_HOST2RISC_ARG4);
/* Issue the command */
mfc_write(dev, cmd, S5P_FIMV_HOST2RISC_CMD);
return 0;
}
/* Initialize the MFC */
int s5p_mfc_sys_init_cmd_v5(struct s5p_mfc_dev *dev)
{
struct s5p_mfc_cmd_args h2r_args;
memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args));
h2r_args.arg[0] = dev->fw_size;
return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_SYS_INIT,
&h2r_args);
}
/* Suspend the MFC hardware */
int s5p_mfc_sleep_cmd_v5(struct s5p_mfc_dev *dev)
{
struct s5p_mfc_cmd_args h2r_args;
memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args));
return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_SLEEP, &h2r_args);
}
/* Wake up the MFC hardware */
int s5p_mfc_wakeup_cmd_v5(struct s5p_mfc_dev *dev)
{
struct s5p_mfc_cmd_args h2r_args;
memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args));
return s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_WAKEUP,
&h2r_args);
}
int s5p_mfc_open_inst_cmd_v5(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_dev *dev = ctx->dev;
struct s5p_mfc_cmd_args h2r_args;
int ret;
/* Preparing decoding - getting instance number */
mfc_debug(2, "Getting instance number (codec: %d)\n", ctx->codec_mode);
dev->curr_ctx = ctx->num;
memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args));
switch (ctx->codec_mode) {
case S5P_MFC_CODEC_H264_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_H264_DEC;
break;
case S5P_MFC_CODEC_VC1_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_VC1_DEC;
break;
case S5P_MFC_CODEC_MPEG4_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG4_DEC;
break;
case S5P_MFC_CODEC_MPEG2_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG2_DEC;
break;
case S5P_MFC_CODEC_H263_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_H263_DEC;
break;
case S5P_MFC_CODEC_VC1RCV_DEC:
h2r_args.arg[0] = S5P_FIMV_CODEC_VC1RCV_DEC;
break;
case S5P_MFC_CODEC_H264_ENC:
h2r_args.arg[0] = S5P_FIMV_CODEC_H264_ENC;
break;
case S5P_MFC_CODEC_MPEG4_ENC:
h2r_args.arg[0] = S5P_FIMV_CODEC_MPEG4_ENC;
break;
case S5P_MFC_CODEC_H263_ENC:
h2r_args.arg[0] = S5P_FIMV_CODEC_H263_ENC;
break;
default:
h2r_args.arg[0] = S5P_FIMV_CODEC_NONE;
};
h2r_args.arg[1] = 0; /* no crc & no pixelcache */
h2r_args.arg[2] = ctx->ctx.ofs;
h2r_args.arg[3] = ctx->ctx.size;
ret = s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_OPEN_INSTANCE,
&h2r_args);
if (ret) {
mfc_err("Failed to create a new instance\n");
ctx->state = MFCINST_ERROR;
}
return ret;
}
int s5p_mfc_close_inst_cmd_v5(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_dev *dev = ctx->dev;
struct s5p_mfc_cmd_args h2r_args;
int ret;
if (ctx->state == MFCINST_FREE) {
mfc_err("Instance already returned\n");
ctx->state = MFCINST_ERROR;
return -EINVAL;
}
/* Closing decoding instance */
mfc_debug(2, "Returning instance number %d\n", ctx->inst_no);
dev->curr_ctx = ctx->num;
memset(&h2r_args, 0, sizeof(struct s5p_mfc_cmd_args));
h2r_args.arg[0] = ctx->inst_no;
ret = s5p_mfc_cmd_host2risc_v5(dev, S5P_FIMV_H2R_CMD_CLOSE_INSTANCE,
&h2r_args);
if (ret) {
mfc_err("Failed to return an instance\n");
ctx->state = MFCINST_ERROR;
return -EINVAL;
}
return 0;
}
/* Initialize cmd function pointers for MFC v5 */
static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v5 = {
.cmd_host2risc = s5p_mfc_cmd_host2risc_v5,
.sys_init_cmd = s5p_mfc_sys_init_cmd_v5,
.sleep_cmd = s5p_mfc_sleep_cmd_v5,
.wakeup_cmd = s5p_mfc_wakeup_cmd_v5,
.open_inst_cmd = s5p_mfc_open_inst_cmd_v5,
.close_inst_cmd = s5p_mfc_close_inst_cmd_v5,
};
struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void)
{
return &s5p_mfc_cmds_v5;
}
|
