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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
* Copyright (C) 2014 Freescale Semiconductor, Inc. All Rights Reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <linux/string.h>
#include <linux/list.h>
#include <gis.h>
#include "mxc_pxp.h"
#define BV_PXP_OUT_CTRL_FORMAT__RGB888 0x4
#define BV_PXP_OUT_CTRL_FORMAT__RGB555 0xC
#define BV_PXP_OUT_CTRL_FORMAT__RGB444 0xD
#define BV_PXP_OUT_CTRL_FORMAT__RGB565 0xE
#define BV_PXP_OUT_CTRL_FORMAT__YUV1P444 0x10
#define BV_PXP_OUT_CTRL_FORMAT__UYVY1P422 0x12
#define BV_PXP_OUT_CTRL_FORMAT__VYUY1P422 0x13
#define BV_PXP_PS_CTRL_FORMAT__RGB888 0x4
#define BV_PXP_PS_CTRL_FORMAT__RGB565 0xE
#define BV_PXP_PS_CTRL_FORMAT__YUV1P444 0x10
#define BV_PXP_PS_CTRL_FORMAT__UYVY1P422 0x12
#define BV_PXP_PS_CTRL_FORMAT__VYUY1P422 0x13
#define BP_PXP_PS_CTRL_SWAP 5
#define BM_PXP_PS_CTRL_SWAP 0x000000E0
#define BF_PXP_PS_CTRL_SWAP(v) \
(((v) << 5) & BM_PXP_PS_CTRL_SWAP)
#define PXP_DOWNSCALE_THRESHOLD 0x4000
static void pxp_set_ctrl(struct pxp_config_data *pxp_conf)
{
u32 ctrl;
u32 fmt_ctrl;
int need_swap = 0; /* to support YUYV and YVYU formats */
struct mxs_pxp_regs *regs = (struct mxs_pxp_regs *)PXP_BASE_ADDR;
/* Configure S0 input format */
switch (pxp_conf->s0_param.pixel_fmt) {
case FMT_YUV444:
fmt_ctrl = BV_PXP_PS_CTRL_FORMAT__YUV1P444;
break;
case FMT_UYVY:
fmt_ctrl = BV_PXP_PS_CTRL_FORMAT__UYVY1P422;
break;
case FMT_YUYV:
fmt_ctrl = BV_PXP_PS_CTRL_FORMAT__UYVY1P422;
need_swap = 1;
default:
fmt_ctrl = 0;
}
ctrl = BF_PXP_PS_CTRL_FORMAT(fmt_ctrl) | BF_PXP_PS_CTRL_SWAP(need_swap);
writel(ctrl, ®s->pxp_ps_ctrl);
/* Configure output format based on out_channel format */
switch (pxp_conf->out_param.pixel_fmt) {
case FMT_RGB565:
fmt_ctrl = BV_PXP_OUT_CTRL_FORMAT__RGB565;
break;
case FMT_RGB888:
fmt_ctrl = BV_PXP_OUT_CTRL_FORMAT__RGB888;
break;
default:
fmt_ctrl = 0;
}
ctrl = BF_PXP_OUT_CTRL_FORMAT(fmt_ctrl);
writel(ctrl, ®s->pxp_out_ctrl);
}
static int pxp_set_scaling(struct pxp_config_data *pxp_conf)
{
int ret = 0;
u32 xscale, yscale, s0scale;
u32 decx, decy, xdec = 0, ydec = 0;
struct pxp_layer_param *s0_params = &pxp_conf->s0_param;
struct pxp_layer_param *out_params = &pxp_conf->out_param;
struct mxs_pxp_regs *regs = (struct mxs_pxp_regs *)PXP_BASE_ADDR;
decx = s0_params->width / out_params->width;
decy = s0_params->height / out_params->height;
if (decx > 1) {
if (decx >= 2 && decx < 4) {
decx = 2;
xdec = 1;
} else if (decx >= 4 && decx < 8) {
decx = 4;
xdec = 2;
} else if (decx >= 8) {
decx = 8;
xdec = 3;
}
xscale = s0_params->width * 0x1000 /
(out_params->width * decx);
} else {
if ((s0_params->pixel_fmt == FMT_YUYV) ||
(s0_params->pixel_fmt == FMT_UYVY) ||
(s0_params->pixel_fmt == FMT_YUV444))
xscale = (s0_params->width - 1) * 0x1000 /
(out_params->width - 1);
else
xscale = (s0_params->width - 2) * 0x1000 /
(out_params->width - 1);
}
if (decy > 1) {
if (decy >= 2 && decy < 4) {
decy = 2;
ydec = 1;
} else if (decy >= 4 && decy < 8) {
decy = 4;
ydec = 2;
} else if (decy >= 8) {
decy = 8;
ydec = 3;
}
yscale = s0_params->height * 0x1000 /
(out_params->height * decy);
} else
yscale = (s0_params->height - 1) * 0x1000 /
(out_params->height - 1);
writel((xdec << 10) | (ydec << 8), ®s->pxp_ps_ctrl);
if (xscale > PXP_DOWNSCALE_THRESHOLD)
xscale = PXP_DOWNSCALE_THRESHOLD;
if (yscale > PXP_DOWNSCALE_THRESHOLD)
yscale = PXP_DOWNSCALE_THRESHOLD;
s0scale = BF_PXP_PS_SCALE_YSCALE(yscale) |
BF_PXP_PS_SCALE_XSCALE(xscale);
writel(s0scale, ®s->pxp_ps_scale);
pxp_set_ctrl(pxp_conf);
return ret;
}
void pxp_power_down(void)
{
struct mxs_pxp_regs *regs = (struct mxs_pxp_regs *)PXP_BASE_ADDR;
u32 val;
val = BM_PXP_CTRL_SFTRST | BM_PXP_CTRL_CLKGATE;
writel(val , ®s->pxp_ctrl);
}
void pxp_config(struct pxp_config_data *pxp_conf)
{
struct mxs_pxp_regs *regs = (struct mxs_pxp_regs *)PXP_BASE_ADDR;
/* reset */
mxs_reset_block(®s->pxp_ctrl_reg);
/* output buffer */
if (pxp_conf->out_param.pixel_fmt == FMT_RGB888)
writel(BV_PXP_OUT_CTRL_FORMAT__RGB888, ®s->pxp_out_ctrl);
else
writel(BV_PXP_OUT_CTRL_FORMAT__RGB565, ®s->pxp_out_ctrl);
writel((u32)pxp_conf->out_param.paddr, ®s->pxp_out_buf);
writel(pxp_conf->out_param.stride, ®s->pxp_out_pitch);
writel((pxp_conf->out_param.width - 1) << 16 |
(pxp_conf->out_param.height - 1),
®s->pxp_out_lrc);
/* scale needed */
writel(0, ®s->pxp_out_ps_ulc);
writel((pxp_conf->out_param.width - 1) << 16 |
(pxp_conf->out_param.height - 1),
®s->pxp_out_ps_lrc);
pxp_set_scaling(pxp_conf);
writel(0, ®s->pxp_out_as_ulc);
writel(0, ®s->pxp_out_as_lrc);
/* input buffer */
if (pxp_conf->s0_param.pixel_fmt == FMT_YUV444)
writel(BV_PXP_PS_CTRL_FORMAT__YUV1P444, ®s->pxp_ps_ctrl);
else if (pxp_conf->s0_param.pixel_fmt == FMT_YUYV)
writel(BV_PXP_PS_CTRL_FORMAT__UYVY1P422 | BF_PXP_PS_CTRL_SWAP(1),
®s->pxp_ps_ctrl);
else if (pxp_conf->s0_param.pixel_fmt == FMT_UYVY)
writel(BV_PXP_PS_CTRL_FORMAT__UYVY1P422, ®s->pxp_ps_ctrl);
else
printf("%s, unsupport fmt\n", __func__);
writel((u32)pxp_conf->s0_param.paddr, ®s->pxp_ps_buf);
writel(pxp_conf->s0_param.stride, ®s->pxp_ps_pitch);
writel(0, ®s->pxp_ps_background);
writel(0x84ab01f0, ®s->pxp_csc1_coef0);
writel(0x01980204, ®s->pxp_csc1_coef1);
writel(0x0730079c, ®s->pxp_csc1_coef2);
/* pxp start */
writel(BM_PXP_CTRL_IRQ_ENABLE | BM_PXP_CTRL_ENABLE, ®s->pxp_ctrl);
}
|
