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-rw-r--r--drivers/media/video/Kconfig6
-rw-r--r--drivers/media/video/Makefile1
-rw-r--r--drivers/media/video/soc_camera_platform.c198
-rw-r--r--include/media/soc_camera_platform.h15
4 files changed, 220 insertions, 0 deletions
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index fdeaff257caf..1199a1a2e6f5 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -961,6 +961,12 @@ config MT9V022_PCA9536_SWITCH
961 Select this if your MT9V022 camera uses a PCA9536 I2C GPIO 961 Select this if your MT9V022 camera uses a PCA9536 I2C GPIO
962 extender to switch between 8 and 10 bit datawidth modes 962 extender to switch between 8 and 10 bit datawidth modes
963 963
964config SOC_CAMERA_PLATFORM
965 tristate "platform camera support"
966 depends on SOC_CAMERA
967 help
968 This is a generic SoC camera platform driver, useful for testing
969
964config VIDEO_PXA27x 970config VIDEO_PXA27x
965 tristate "PXA27x Quick Capture Interface driver" 971 tristate "PXA27x Quick Capture Interface driver"
966 depends on VIDEO_DEV && PXA27x 972 depends on VIDEO_DEV && PXA27x
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index 6dd51b01ef90..45d5db5abb1e 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -137,6 +137,7 @@ obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
137obj-$(CONFIG_SOC_CAMERA) += soc_camera.o 137obj-$(CONFIG_SOC_CAMERA) += soc_camera.o
138obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o 138obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o
139obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o 139obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o
140obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o
140 141
141obj-$(CONFIG_VIDEO_AU0828) += au0828/ 142obj-$(CONFIG_VIDEO_AU0828) += au0828/
142 143
diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c
new file mode 100644
index 000000000000..eefb0327ebb6
--- /dev/null
+++ b/drivers/media/video/soc_camera_platform.c
@@ -0,0 +1,198 @@
1/*
2 * Generic Platform Camera Driver
3 *
4 * Copyright (C) 2008 Magnus Damm
5 * Based on mt9m001 driver,
6 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/slab.h>
16#include <linux/delay.h>
17#include <linux/platform_device.h>
18#include <linux/videodev2.h>
19#include <media/v4l2-common.h>
20#include <media/soc_camera.h>
21
22struct soc_camera_platform_info {
23 int iface;
24 char *format_name;
25 unsigned long format_depth;
26 struct v4l2_pix_format format;
27 unsigned long bus_param;
28 int (*set_capture)(struct soc_camera_platform_info *info, int enable);
29};
30
31struct soc_camera_platform_priv {
32 struct soc_camera_platform_info *info;
33 struct soc_camera_device icd;
34 struct soc_camera_data_format format;
35};
36
37static struct soc_camera_platform_info *
38soc_camera_platform_get_info(struct soc_camera_device *icd)
39{
40 struct soc_camera_platform_priv *priv;
41 priv = container_of(icd, struct soc_camera_platform_priv, icd);
42 return priv->info;
43}
44
45static int soc_camera_platform_init(struct soc_camera_device *icd)
46{
47 return 0;
48}
49
50static int soc_camera_platform_release(struct soc_camera_device *icd)
51{
52 return 0;
53}
54
55static int soc_camera_platform_start_capture(struct soc_camera_device *icd)
56{
57 struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
58 return p->set_capture(p, 1);
59}
60
61static int soc_camera_platform_stop_capture(struct soc_camera_device *icd)
62{
63 struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
64 return p->set_capture(p, 0);
65}
66
67static int soc_camera_platform_set_bus_param(struct soc_camera_device *icd,
68 unsigned long flags)
69{
70 return 0;
71}
72
73static unsigned long
74soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
75{
76 struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
77 return p->bus_param;
78}
79
80static int soc_camera_platform_set_fmt_cap(struct soc_camera_device *icd,
81 __u32 pixfmt, struct v4l2_rect *rect)
82{
83 return 0;
84}
85
86static int soc_camera_platform_try_fmt_cap(struct soc_camera_device *icd,
87 struct v4l2_format *f)
88{
89 struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
90
91 f->fmt.pix.width = p->format.width;
92 f->fmt.pix.height = p->format.height;
93 return 0;
94}
95
96static int soc_camera_platform_video_probe(struct soc_camera_device *icd)
97{
98 struct soc_camera_platform_priv *priv;
99 priv = container_of(icd, struct soc_camera_platform_priv, icd);
100
101 priv->format.name = priv->info->format_name;
102 priv->format.depth = priv->info->format_depth;
103 priv->format.fourcc = priv->info->format.pixelformat;
104 priv->format.colorspace = priv->info->format.colorspace;
105
106 icd->formats = &priv->format;
107 icd->num_formats = 1;
108
109 return soc_camera_video_start(icd);
110}
111
112static void soc_camera_platform_video_remove(struct soc_camera_device *icd)
113{
114 soc_camera_video_stop(icd);
115}
116
117static struct soc_camera_ops soc_camera_platform_ops = {
118 .owner = THIS_MODULE,
119 .probe = soc_camera_platform_video_probe,
120 .remove = soc_camera_platform_video_remove,
121 .init = soc_camera_platform_init,
122 .release = soc_camera_platform_release,
123 .start_capture = soc_camera_platform_start_capture,
124 .stop_capture = soc_camera_platform_stop_capture,
125 .set_fmt_cap = soc_camera_platform_set_fmt_cap,
126 .try_fmt_cap = soc_camera_platform_try_fmt_cap,
127 .set_bus_param = soc_camera_platform_set_bus_param,
128 .query_bus_param = soc_camera_platform_query_bus_param,
129};
130
131static int soc_camera_platform_probe(struct platform_device *pdev)
132{
133 struct soc_camera_platform_priv *priv;
134 struct soc_camera_platform_info *p;
135 struct soc_camera_device *icd;
136 int ret;
137
138 p = pdev->dev.platform_data;
139 if (!p)
140 return -EINVAL;
141
142 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
143 if (!priv)
144 return -ENOMEM;
145
146 priv->info = p;
147 platform_set_drvdata(pdev, priv);
148
149 icd = &priv->icd;
150 icd->ops = &soc_camera_platform_ops;
151 icd->control = &pdev->dev;
152 icd->width_min = 0;
153 icd->width_max = priv->info->format.width;
154 icd->height_min = 0;
155 icd->height_max = priv->info->format.height;
156 icd->y_skip_top = 0;
157 icd->iface = priv->info->iface;
158
159 ret = soc_camera_device_register(icd);
160 if (ret)
161 kfree(priv);
162
163 return ret;
164}
165
166static int soc_camera_platform_remove(struct platform_device *pdev)
167{
168 struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
169
170 soc_camera_device_unregister(&priv->icd);
171 kfree(priv);
172 return 0;
173}
174
175static struct platform_driver soc_camera_platform_driver = {
176 .driver = {
177 .name = "soc_camera_platform",
178 },
179 .probe = soc_camera_platform_probe,
180 .remove = soc_camera_platform_remove,
181};
182
183static int __init soc_camera_platform_module_init(void)
184{
185 return platform_driver_register(&soc_camera_platform_driver);
186}
187
188static void __exit soc_camera_platform_module_exit(void)
189{
190 return platform_driver_unregister(&soc_camera_platform_driver);
191}
192
193module_init(soc_camera_platform_module_init);
194module_exit(soc_camera_platform_module_exit);
195
196MODULE_DESCRIPTION("SoC Camera Platform driver");
197MODULE_AUTHOR("Magnus Damm");
198MODULE_LICENSE("GPL v2");
diff --git a/include/media/soc_camera_platform.h b/include/media/soc_camera_platform.h
new file mode 100644
index 000000000000..851f18220984
--- /dev/null
+++ b/include/media/soc_camera_platform.h
@@ -0,0 +1,15 @@
1#ifndef __SOC_CAMERA_H__
2#define __SOC_CAMERA_H__
3
4#include <linux/videodev2.h>
5
6struct soc_camera_platform_info {
7 int iface;
8 char *format_name;
9 unsigned long format_depth;
10 struct v4l2_pix_format format;
11 unsigned long bus_param;
12 int (*set_capture)(struct soc_camera_platform_info *info, int enable);
13};
14
15#endif /* __SOC_CAMERA_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 09:07:20 -0500