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path: root/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
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Diffstat (limited to 'drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c')
-rw-r--r--drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c123
1 files changed, 57 insertions, 66 deletions
diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
index 1b184d5c6b82..fd456d1f7061 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Broadcom BM2835 V4L2 driver
+ * Broadcom BCM2835 V4L2 driver
*
* Copyright © 2013 Raspberry Pi (Trading) Ltd.
*
@@ -33,8 +33,6 @@
#include "mmal-parameters.h"
#include "bcm2835-camera.h"
-#define BM2835_MMAL_VERSION "0.0.2"
-#define BM2835_MMAL_MODULE_NAME "bcm2835-v4l2"
#define MIN_WIDTH 32
#define MIN_HEIGHT 32
#define MIN_BUFFER_SIZE (80 * 1024)
@@ -64,7 +62,7 @@ MODULE_PARM_DESC(max_video_height, "Threshold for video mode");
static atomic_t camera_instance = ATOMIC_INIT(0);
/* global device data array */
-static struct bm2835_mmal_dev *gdev[MAX_BCM2835_CAMERAS];
+static struct bcm2835_mmal_dev *gdev[MAX_BCM2835_CAMERAS];
#define FPS_MIN 1
#define FPS_MAX 90
@@ -210,7 +208,7 @@ static int queue_setup(struct vb2_queue *vq,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], struct device *alloc_ctxs[])
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
unsigned long size;
/* refuse queue setup if port is not configured */
@@ -265,7 +263,7 @@ static int queue_setup(struct vb2_queue *vq,
static int buffer_init(struct vb2_buffer *vb)
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
struct vb2_mmal_buffer *buf =
container_of(vb2, struct vb2_mmal_buffer, vb);
@@ -280,7 +278,7 @@ static int buffer_init(struct vb2_buffer *vb)
static int buffer_prepare(struct vb2_buffer *vb)
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
unsigned long size;
v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p, vb %p\n",
@@ -302,7 +300,7 @@ static int buffer_prepare(struct vb2_buffer *vb)
static void buffer_cleanup(struct vb2_buffer *vb)
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
struct vb2_mmal_buffer *buf =
container_of(vb2, struct vb2_mmal_buffer, vb);
@@ -313,7 +311,7 @@ static void buffer_cleanup(struct vb2_buffer *vb)
mmal_vchi_buffer_cleanup(&buf->mmal);
}
-static inline bool is_capturing(struct bm2835_mmal_dev *dev)
+static inline bool is_capturing(struct bcm2835_mmal_dev *dev)
{
return dev->capture.camera_port ==
&dev->component[COMP_CAMERA]->output[CAM_PORT_CAPTURE];
@@ -324,7 +322,7 @@ static void buffer_cb(struct vchiq_mmal_instance *instance,
int status,
struct mmal_buffer *mmal_buf)
{
- struct bm2835_mmal_dev *dev = port->cb_ctx;
+ struct bcm2835_mmal_dev *dev = port->cb_ctx;
struct vb2_mmal_buffer *buf =
container_of(mmal_buf, struct vb2_mmal_buffer, mmal);
@@ -416,7 +414,7 @@ static void buffer_cb(struct vchiq_mmal_instance *instance,
}
}
-static int enable_camera(struct bm2835_mmal_dev *dev)
+static int enable_camera(struct bcm2835_mmal_dev *dev)
{
int ret;
@@ -447,7 +445,7 @@ static int enable_camera(struct bm2835_mmal_dev *dev)
return 0;
}
-static int disable_camera(struct bm2835_mmal_dev *dev)
+static int disable_camera(struct bcm2835_mmal_dev *dev)
{
int ret;
@@ -482,7 +480,7 @@ static int disable_camera(struct bm2835_mmal_dev *dev)
static void buffer_queue(struct vb2_buffer *vb)
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
struct vb2_mmal_buffer *buf =
container_of(vb2, struct vb2_mmal_buffer, vb);
@@ -501,7 +499,7 @@ static void buffer_queue(struct vb2_buffer *vb)
static int start_streaming(struct vb2_queue *vq, unsigned int count)
{
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
int ret;
u32 parameter_size;
@@ -596,7 +594,7 @@ static void stop_streaming(struct vb2_queue *vq)
{
int ret;
unsigned long timeout;
- struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
+ struct bcm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
struct vchiq_mmal_port *port = dev->capture.port;
v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
@@ -654,7 +652,7 @@ static void stop_streaming(struct vb2_queue *vq)
v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n");
}
-static const struct vb2_ops bm2835_mmal_video_qops = {
+static const struct vb2_ops bcm2835_mmal_video_qops = {
.queue_setup = queue_setup,
.buf_init = buffer_init,
.buf_prepare = buffer_prepare,
@@ -671,7 +669,7 @@ static const struct vb2_ops bm2835_mmal_video_qops = {
* ------------------------------------------------------------------
*/
-static int set_overlay_params(struct bm2835_mmal_dev *dev,
+static int set_overlay_params(struct bcm2835_mmal_dev *dev,
struct vchiq_mmal_port *port)
{
struct mmal_parameter_displayregion prev_config = {
@@ -713,7 +711,7 @@ static int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv,
static int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
f->fmt.win = dev->overlay;
@@ -723,7 +721,7 @@ static int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
static int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
f->fmt.win.field = V4L2_FIELD_NONE;
f->fmt.win.chromakey = 0;
@@ -754,7 +752,7 @@ static int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
static int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
vidioc_try_fmt_vid_overlay(file, priv, f);
@@ -770,7 +768,7 @@ static int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
static int vidioc_overlay(struct file *file, void *f, unsigned int on)
{
int ret;
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
struct vchiq_mmal_port *src;
struct vchiq_mmal_port *dst;
@@ -829,7 +827,7 @@ static int vidioc_g_fbuf(struct file *file, void *fh,
/* The video overlay must stay within the framebuffer and can't be
* positioned independently.
*/
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
struct vchiq_mmal_port *preview_port =
&dev->component[COMP_CAMERA]->output[CAM_PORT_PREVIEW];
@@ -878,18 +876,16 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
u32 major;
u32 minor;
vchiq_mmal_version(dev->instance, &major, &minor);
- strscpy(cap->driver, "bm2835 mmal", sizeof(cap->driver));
- snprintf((char *)cap->card, sizeof(cap->card), "mmal service %d.%d",
- major, minor);
+ strscpy(cap->driver, "bcm2835 mmal", sizeof(cap->driver));
+ snprintf((char *)cap->card, sizeof(cap->card), "mmal service %d.%d", major, minor);
- snprintf((char *)cap->bus_info, sizeof(cap->bus_info),
- "platform:%s", dev->v4l2_dev.name);
+ snprintf((char *)cap->bus_info, sizeof(cap->bus_info), "platform:%s", dev->v4l2_dev.name);
return 0;
}
@@ -911,7 +907,7 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
f->fmt.pix.width = dev->capture.width;
f->fmt.pix.height = dev->capture.height;
@@ -936,7 +932,7 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
struct mmal_fmt *mfmt;
mfmt = get_format(f);
@@ -1010,7 +1006,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
}
-static int mmal_setup_video_component(struct bm2835_mmal_dev *dev,
+static int mmal_setup_video_component(struct bcm2835_mmal_dev *dev,
struct v4l2_format *f)
{
bool overlay_enabled = !!dev->component[COMP_PREVIEW]->enabled;
@@ -1037,9 +1033,9 @@ static int mmal_setup_video_component(struct bm2835_mmal_dev *dev,
preview_port->es.video.crop.y = 0;
preview_port->es.video.crop.width = f->fmt.pix.width;
preview_port->es.video.crop.height = f->fmt.pix.height;
- preview_port->es.video.frame_rate.num =
+ preview_port->es.video.frame_rate.numerator =
dev->capture.timeperframe.denominator;
- preview_port->es.video.frame_rate.den =
+ preview_port->es.video.frame_rate.denominator =
dev->capture.timeperframe.numerator;
ret = vchiq_mmal_port_set_format(dev->instance, preview_port);
@@ -1056,7 +1052,7 @@ static int mmal_setup_video_component(struct bm2835_mmal_dev *dev,
return ret;
}
-static int mmal_setup_encode_component(struct bm2835_mmal_dev *dev,
+static int mmal_setup_encode_component(struct bcm2835_mmal_dev *dev,
struct v4l2_format *f,
struct vchiq_mmal_port *port,
struct vchiq_mmal_port *camera_port,
@@ -1088,9 +1084,9 @@ static int mmal_setup_encode_component(struct bm2835_mmal_dev *dev,
port->es.video.crop.y = 0;
port->es.video.crop.width = f->fmt.pix.width;
port->es.video.crop.height = f->fmt.pix.height;
- port->es.video.frame_rate.num =
+ port->es.video.frame_rate.numerator =
dev->capture.timeperframe.denominator;
- port->es.video.frame_rate.den =
+ port->es.video.frame_rate.denominator =
dev->capture.timeperframe.numerator;
port->format.encoding = mfmt->mmal;
@@ -1144,7 +1140,7 @@ static int mmal_setup_encode_component(struct bm2835_mmal_dev *dev,
return 0;
}
-static int mmal_setup_components(struct bm2835_mmal_dev *dev,
+static int mmal_setup_components(struct bcm2835_mmal_dev *dev,
struct v4l2_format *f)
{
int ret;
@@ -1229,8 +1225,8 @@ static int mmal_setup_components(struct bm2835_mmal_dev *dev,
camera_port->es.video.crop.y = 0;
camera_port->es.video.crop.width = f->fmt.pix.width;
camera_port->es.video.crop.height = f->fmt.pix.height;
- camera_port->es.video.frame_rate.num = 0;
- camera_port->es.video.frame_rate.den = 1;
+ camera_port->es.video.frame_rate.numerator = 0;
+ camera_port->es.video.frame_rate.denominator = 1;
camera_port->es.video.color_space = MMAL_COLOR_SPACE_JPEG_JFIF;
ret = vchiq_mmal_port_set_format(dev->instance, camera_port);
@@ -1290,7 +1286,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
int ret;
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
struct mmal_fmt *mfmt;
/* try the format to set valid parameters */
@@ -1333,7 +1329,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
static int vidioc_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
static const struct v4l2_frmsize_stepwise sizes = {
MIN_WIDTH, 0, 2,
MIN_HEIGHT, 0, 2
@@ -1358,7 +1354,7 @@ static int vidioc_enum_framesizes(struct file *file, void *fh,
static int vidioc_enum_frameintervals(struct file *file, void *priv,
struct v4l2_frmivalenum *fival)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
int i;
if (fival->index)
@@ -1388,7 +1384,7 @@ static int vidioc_enum_frameintervals(struct file *file, void *priv,
static int vidioc_g_parm(struct file *file, void *priv,
struct v4l2_streamparm *parm)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
@@ -1402,7 +1398,7 @@ static int vidioc_g_parm(struct file *file, void *priv,
static int vidioc_s_parm(struct file *file, void *priv,
struct v4l2_streamparm *parm)
{
- struct bm2835_mmal_dev *dev = video_drvdata(file);
+ struct bcm2835_mmal_dev *dev = video_drvdata(file);
struct v4l2_fract tpf;
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -1530,7 +1526,7 @@ static int get_num_cameras(struct vchiq_mmal_instance *instance,
static int set_camera_parameters(struct vchiq_mmal_instance *instance,
struct vchiq_mmal_component *camera,
- struct bm2835_mmal_dev *dev)
+ struct bcm2835_mmal_dev *dev)
{
struct mmal_parameter_camera_config cam_config = {
.max_stills_w = dev->max_width,
@@ -1555,7 +1551,7 @@ static int set_camera_parameters(struct vchiq_mmal_instance *instance,
#define MAX_SUPPORTED_ENCODINGS 20
/* MMAL instance and component init */
-static int mmal_init(struct bm2835_mmal_dev *dev)
+static int mmal_init(struct bcm2835_mmal_dev *dev)
{
int ret;
struct mmal_es_format_local *format;
@@ -1633,8 +1629,8 @@ static int mmal_init(struct bm2835_mmal_dev *dev)
format->es->video.crop.y = 0;
format->es->video.crop.width = 1024;
format->es->video.crop.height = 768;
- format->es->video.frame_rate.num = 0; /* Rely on fps_range */
- format->es->video.frame_rate.den = 1;
+ format->es->video.frame_rate.numerator = 0; /* Rely on fps_range */
+ format->es->video.frame_rate.denominator = 1;
format = &camera->output[CAM_PORT_VIDEO].format;
@@ -1647,8 +1643,8 @@ static int mmal_init(struct bm2835_mmal_dev *dev)
format->es->video.crop.y = 0;
format->es->video.crop.width = 1024;
format->es->video.crop.height = 768;
- format->es->video.frame_rate.num = 0; /* Rely on fps_range */
- format->es->video.frame_rate.den = 1;
+ format->es->video.frame_rate.numerator = 0; /* Rely on fps_range */
+ format->es->video.frame_rate.denominator = 1;
format = &camera->output[CAM_PORT_CAPTURE].format;
@@ -1660,8 +1656,8 @@ static int mmal_init(struct bm2835_mmal_dev *dev)
format->es->video.crop.y = 0;
format->es->video.crop.width = 2592;
format->es->video.crop.height = 1944;
- format->es->video.frame_rate.num = 0; /* Rely on fps_range */
- format->es->video.frame_rate.den = 1;
+ format->es->video.frame_rate.numerator = 0; /* Rely on fps_range */
+ format->es->video.frame_rate.denominator = 1;
dev->capture.width = format->es->video.width;
dev->capture.height = format->es->video.height;
@@ -1735,7 +1731,7 @@ static int mmal_init(struct bm2835_mmal_dev *dev)
&enable,
sizeof(enable));
}
- ret = bm2835_mmal_set_all_camera_controls(dev);
+ ret = bcm2835_mmal_set_all_camera_controls(dev);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "%s: failed to set all camera controls: %d\n",
__func__, ret);
@@ -1769,8 +1765,7 @@ unreg_mmal:
return ret;
}
-static int bm2835_mmal_init_device(struct bm2835_mmal_dev *dev,
- struct video_device *vfd)
+static int bcm2835_mmal_init_device(struct bcm2835_mmal_dev *dev, struct video_device *vfd)
{
int ret;
@@ -1798,7 +1793,7 @@ static int bm2835_mmal_init_device(struct bm2835_mmal_dev *dev,
return 0;
}
-static void bcm2835_cleanup_instance(struct bm2835_mmal_dev *dev)
+static void bcm2835_cleanup_instance(struct bcm2835_mmal_dev *dev)
{
if (!dev)
return;
@@ -1849,7 +1844,7 @@ static struct v4l2_format default_v4l2_format = {
static int bcm2835_mmal_probe(struct platform_device *pdev)
{
int ret;
- struct bm2835_mmal_dev *dev;
+ struct bcm2835_mmal_dev *dev;
struct vb2_queue *q;
int camera;
unsigned int num_cameras;
@@ -1897,8 +1892,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
dev->capture.fmt = &formats[3]; /* JPEG */
/* v4l device registration */
- dev->camera_num = v4l2_device_set_name(&dev->v4l2_dev,
- BM2835_MMAL_MODULE_NAME,
+ dev->camera_num = v4l2_device_set_name(&dev->v4l2_dev, KBUILD_MODNAME,
&camera_instance);
ret = v4l2_device_register(NULL, &dev->v4l2_dev);
if (ret) {
@@ -1908,7 +1902,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
}
/* setup v4l controls */
- ret = bm2835_mmal_init_controls(dev, &dev->ctrl_handler);
+ ret = bcm2835_mmal_init_controls(dev, &dev->ctrl_handler);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "%s: could not init controls: %d\n",
__func__, ret);
@@ -1931,7 +1925,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct vb2_mmal_buffer);
- q->ops = &bm2835_mmal_video_qops;
+ q->ops = &bcm2835_mmal_video_qops;
q->mem_ops = &vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->mutex;
@@ -1940,7 +1934,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
goto unreg_dev;
/* initialise video devices */
- ret = bm2835_mmal_init_device(dev, &dev->vdev);
+ ret = bcm2835_mmal_init_device(dev, &dev->vdev);
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "%s: could not init device: %d\n",
__func__, ret);
@@ -1957,9 +1951,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
goto unreg_dev;
}
- v4l2_info(&dev->v4l2_dev,
- "Broadcom 2835 MMAL video capture ver %s loaded.\n",
- BM2835_MMAL_VERSION);
+ v4l2_info(&dev->v4l2_dev, "Broadcom 2835 MMAL video capture loaded.\n");
gdev[camera] = dev;
}
@@ -2011,5 +2003,4 @@ module_platform_driver(bcm2835_camera_driver)
MODULE_DESCRIPTION("Broadcom 2835 MMAL video capture");
MODULE_AUTHOR("Vincent Sanders");
MODULE_LICENSE("GPL");
-MODULE_VERSION(BM2835_MMAL_VERSION);
MODULE_ALIAS("platform:bcm2835-camera");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.