mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1670 lines
43 KiB
1670 lines
43 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Samsung EXYNOS FIMC-LITE (camera host interface) driver |
|
* |
|
* Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd. |
|
* Author: Sylwester Nawrocki <[email protected]> |
|
*/ |
|
#define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__ |
|
|
|
#include <linux/bug.h> |
|
#include <linux/clk.h> |
|
#include <linux/device.h> |
|
#include <linux/errno.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/kernel.h> |
|
#include <linux/list.h> |
|
#include <linux/module.h> |
|
#include <linux/of.h> |
|
#include <linux/types.h> |
|
#include <linux/platform_device.h> |
|
#include <linux/pm_runtime.h> |
|
#include <linux/slab.h> |
|
#include <linux/videodev2.h> |
|
|
|
#include <media/v4l2-device.h> |
|
#include <media/v4l2-ioctl.h> |
|
#include <media/v4l2-mem2mem.h> |
|
#include <media/v4l2-rect.h> |
|
#include <media/videobuf2-v4l2.h> |
|
#include <media/videobuf2-dma-contig.h> |
|
#include <media/drv-intf/exynos-fimc.h> |
|
|
|
#include "common.h" |
|
#include "fimc-core.h" |
|
#include "fimc-lite.h" |
|
#include "fimc-lite-reg.h" |
|
|
|
static int debug; |
|
module_param(debug, int, 0644); |
|
|
|
static const struct fimc_fmt fimc_lite_formats[] = { |
|
{ |
|
.fourcc = V4L2_PIX_FMT_YUYV, |
|
.colorspace = V4L2_COLORSPACE_JPEG, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_YCBYCR422, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, |
|
.flags = FMT_FLAGS_YUV, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_UYVY, |
|
.colorspace = V4L2_COLORSPACE_JPEG, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_CBYCRY422, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, |
|
.flags = FMT_FLAGS_YUV, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_VYUY, |
|
.colorspace = V4L2_COLORSPACE_JPEG, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_CRYCBY422, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_VYUY8_2X8, |
|
.flags = FMT_FLAGS_YUV, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_YVYU, |
|
.colorspace = V4L2_COLORSPACE_JPEG, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_YCRYCB422, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_YVYU8_2X8, |
|
.flags = FMT_FLAGS_YUV, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_SGRBG8, |
|
.colorspace = V4L2_COLORSPACE_SRGB, |
|
.depth = { 8 }, |
|
.color = FIMC_FMT_RAW8, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_SGRBG8_1X8, |
|
.flags = FMT_FLAGS_RAW_BAYER, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_SGRBG10, |
|
.colorspace = V4L2_COLORSPACE_SRGB, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_RAW10, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10, |
|
.flags = FMT_FLAGS_RAW_BAYER, |
|
}, { |
|
.fourcc = V4L2_PIX_FMT_SGRBG12, |
|
.colorspace = V4L2_COLORSPACE_SRGB, |
|
.depth = { 16 }, |
|
.color = FIMC_FMT_RAW12, |
|
.memplanes = 1, |
|
.mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12, |
|
.flags = FMT_FLAGS_RAW_BAYER, |
|
}, |
|
}; |
|
|
|
/** |
|
* fimc_lite_find_format - lookup fimc color format by fourcc or media bus code |
|
* @pixelformat: fourcc to match, ignored if null |
|
* @mbus_code: media bus code to match, ignored if null |
|
* @mask: the color format flags to match |
|
* @index: index to the fimc_lite_formats array, ignored if negative |
|
*/ |
|
static const struct fimc_fmt *fimc_lite_find_format(const u32 *pixelformat, |
|
const u32 *mbus_code, unsigned int mask, int index) |
|
{ |
|
const struct fimc_fmt *fmt, *def_fmt = NULL; |
|
unsigned int i; |
|
int id = 0; |
|
|
|
if (index >= (int)ARRAY_SIZE(fimc_lite_formats)) |
|
return NULL; |
|
|
|
for (i = 0; i < ARRAY_SIZE(fimc_lite_formats); ++i) { |
|
fmt = &fimc_lite_formats[i]; |
|
if (mask && !(fmt->flags & mask)) |
|
continue; |
|
if (pixelformat && fmt->fourcc == *pixelformat) |
|
return fmt; |
|
if (mbus_code && fmt->mbus_code == *mbus_code) |
|
return fmt; |
|
if (index == id) |
|
def_fmt = fmt; |
|
id++; |
|
} |
|
return def_fmt; |
|
} |
|
|
|
static int fimc_lite_hw_init(struct fimc_lite *fimc, bool isp_output) |
|
{ |
|
struct fimc_source_info *si; |
|
unsigned long flags; |
|
|
|
if (fimc->sensor == NULL) |
|
return -ENXIO; |
|
|
|
if (fimc->inp_frame.fmt == NULL || fimc->out_frame.fmt == NULL) |
|
return -EINVAL; |
|
|
|
/* Get sensor configuration data from the sensor subdev */ |
|
si = v4l2_get_subdev_hostdata(fimc->sensor); |
|
if (!si) |
|
return -EINVAL; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
|
|
flite_hw_set_camera_bus(fimc, si); |
|
flite_hw_set_source_format(fimc, &fimc->inp_frame); |
|
flite_hw_set_window_offset(fimc, &fimc->inp_frame); |
|
flite_hw_set_dma_buf_mask(fimc, 0); |
|
flite_hw_set_output_dma(fimc, &fimc->out_frame, !isp_output); |
|
flite_hw_set_interrupt_mask(fimc); |
|
flite_hw_set_test_pattern(fimc, fimc->test_pattern->val); |
|
|
|
if (debug > 0) |
|
flite_hw_dump_regs(fimc, __func__); |
|
|
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
return 0; |
|
} |
|
|
|
/* |
|
* Reinitialize the driver so it is ready to start the streaming again. |
|
* Set fimc->state to indicate stream off and the hardware shut down state. |
|
* If not suspending (@suspend is false), return any buffers to videobuf2. |
|
* Otherwise put any owned buffers onto the pending buffers queue, so they |
|
* can be re-spun when the device is being resumed. Also perform FIMC |
|
* software reset and disable streaming on the whole pipeline if required. |
|
*/ |
|
static int fimc_lite_reinit(struct fimc_lite *fimc, bool suspend) |
|
{ |
|
struct flite_buffer *buf; |
|
unsigned long flags; |
|
bool streaming; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
streaming = fimc->state & (1 << ST_SENSOR_STREAM); |
|
|
|
fimc->state &= ~(1 << ST_FLITE_RUN | 1 << ST_FLITE_OFF | |
|
1 << ST_FLITE_STREAM | 1 << ST_SENSOR_STREAM); |
|
if (suspend) |
|
fimc->state |= (1 << ST_FLITE_SUSPENDED); |
|
else |
|
fimc->state &= ~(1 << ST_FLITE_PENDING | |
|
1 << ST_FLITE_SUSPENDED); |
|
|
|
/* Release unused buffers */ |
|
while (!suspend && !list_empty(&fimc->pending_buf_q)) { |
|
buf = fimc_lite_pending_queue_pop(fimc); |
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
|
} |
|
/* If suspending put unused buffers onto pending queue */ |
|
while (!list_empty(&fimc->active_buf_q)) { |
|
buf = fimc_lite_active_queue_pop(fimc); |
|
if (suspend) |
|
fimc_lite_pending_queue_add(fimc, buf); |
|
else |
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
|
} |
|
|
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
flite_hw_reset(fimc); |
|
|
|
if (!streaming) |
|
return 0; |
|
|
|
return fimc_pipeline_call(&fimc->ve, set_stream, 0); |
|
} |
|
|
|
static int fimc_lite_stop_capture(struct fimc_lite *fimc, bool suspend) |
|
{ |
|
unsigned long flags; |
|
|
|
if (!fimc_lite_active(fimc)) |
|
return 0; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
set_bit(ST_FLITE_OFF, &fimc->state); |
|
flite_hw_capture_stop(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
wait_event_timeout(fimc->irq_queue, |
|
!test_bit(ST_FLITE_OFF, &fimc->state), |
|
(2*HZ/10)); /* 200 ms */ |
|
|
|
return fimc_lite_reinit(fimc, suspend); |
|
} |
|
|
|
/* Must be called with fimc.slock spinlock held. */ |
|
static void fimc_lite_config_update(struct fimc_lite *fimc) |
|
{ |
|
flite_hw_set_window_offset(fimc, &fimc->inp_frame); |
|
flite_hw_set_dma_window(fimc, &fimc->out_frame); |
|
flite_hw_set_test_pattern(fimc, fimc->test_pattern->val); |
|
clear_bit(ST_FLITE_CONFIG, &fimc->state); |
|
} |
|
|
|
static irqreturn_t flite_irq_handler(int irq, void *priv) |
|
{ |
|
struct fimc_lite *fimc = priv; |
|
struct flite_buffer *vbuf; |
|
unsigned long flags; |
|
u32 intsrc; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
|
|
intsrc = flite_hw_get_interrupt_source(fimc); |
|
flite_hw_clear_pending_irq(fimc); |
|
|
|
if (test_and_clear_bit(ST_FLITE_OFF, &fimc->state)) { |
|
wake_up(&fimc->irq_queue); |
|
goto done; |
|
} |
|
|
|
if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_OVERFLOW) { |
|
clear_bit(ST_FLITE_RUN, &fimc->state); |
|
fimc->events.data_overflow++; |
|
} |
|
|
|
if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_LASTCAPEND) { |
|
flite_hw_clear_last_capture_end(fimc); |
|
clear_bit(ST_FLITE_STREAM, &fimc->state); |
|
wake_up(&fimc->irq_queue); |
|
} |
|
|
|
if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) |
|
goto done; |
|
|
|
if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART) && |
|
test_bit(ST_FLITE_RUN, &fimc->state) && |
|
!list_empty(&fimc->pending_buf_q)) { |
|
vbuf = fimc_lite_pending_queue_pop(fimc); |
|
flite_hw_set_dma_buffer(fimc, vbuf); |
|
fimc_lite_active_queue_add(fimc, vbuf); |
|
} |
|
|
|
if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMEND) && |
|
test_bit(ST_FLITE_RUN, &fimc->state) && |
|
!list_empty(&fimc->active_buf_q)) { |
|
vbuf = fimc_lite_active_queue_pop(fimc); |
|
vbuf->vb.vb2_buf.timestamp = ktime_get_ns(); |
|
vbuf->vb.sequence = fimc->frame_count++; |
|
flite_hw_mask_dma_buffer(fimc, vbuf->index); |
|
vb2_buffer_done(&vbuf->vb.vb2_buf, VB2_BUF_STATE_DONE); |
|
} |
|
|
|
if (test_bit(ST_FLITE_CONFIG, &fimc->state)) |
|
fimc_lite_config_update(fimc); |
|
|
|
if (list_empty(&fimc->pending_buf_q)) { |
|
flite_hw_capture_stop(fimc); |
|
clear_bit(ST_FLITE_STREAM, &fimc->state); |
|
} |
|
done: |
|
set_bit(ST_FLITE_RUN, &fimc->state); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
static int start_streaming(struct vb2_queue *q, unsigned int count) |
|
{ |
|
struct fimc_lite *fimc = q->drv_priv; |
|
unsigned long flags; |
|
int ret; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
|
|
fimc->buf_index = 0; |
|
fimc->frame_count = 0; |
|
|
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
ret = fimc_lite_hw_init(fimc, false); |
|
if (ret) { |
|
fimc_lite_reinit(fimc, false); |
|
return ret; |
|
} |
|
|
|
set_bit(ST_FLITE_PENDING, &fimc->state); |
|
|
|
if (!list_empty(&fimc->active_buf_q) && |
|
!test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) { |
|
flite_hw_capture_start(fimc); |
|
|
|
if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state)) |
|
fimc_pipeline_call(&fimc->ve, set_stream, 1); |
|
} |
|
if (debug > 0) |
|
flite_hw_dump_regs(fimc, __func__); |
|
|
|
return 0; |
|
} |
|
|
|
static void stop_streaming(struct vb2_queue *q) |
|
{ |
|
struct fimc_lite *fimc = q->drv_priv; |
|
|
|
if (!fimc_lite_active(fimc)) |
|
return; |
|
|
|
fimc_lite_stop_capture(fimc, false); |
|
} |
|
|
|
static int queue_setup(struct vb2_queue *vq, |
|
unsigned int *num_buffers, unsigned int *num_planes, |
|
unsigned int sizes[], struct device *alloc_devs[]) |
|
{ |
|
struct fimc_lite *fimc = vq->drv_priv; |
|
struct flite_frame *frame = &fimc->out_frame; |
|
const struct fimc_fmt *fmt = frame->fmt; |
|
unsigned long wh = frame->f_width * frame->f_height; |
|
int i; |
|
|
|
if (fmt == NULL) |
|
return -EINVAL; |
|
|
|
if (*num_planes) { |
|
if (*num_planes != fmt->memplanes) |
|
return -EINVAL; |
|
for (i = 0; i < *num_planes; i++) |
|
if (sizes[i] < (wh * fmt->depth[i]) / 8) |
|
return -EINVAL; |
|
return 0; |
|
} |
|
|
|
*num_planes = fmt->memplanes; |
|
|
|
for (i = 0; i < fmt->memplanes; i++) |
|
sizes[i] = (wh * fmt->depth[i]) / 8; |
|
|
|
return 0; |
|
} |
|
|
|
static int buffer_prepare(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_queue *vq = vb->vb2_queue; |
|
struct fimc_lite *fimc = vq->drv_priv; |
|
int i; |
|
|
|
if (fimc->out_frame.fmt == NULL) |
|
return -EINVAL; |
|
|
|
for (i = 0; i < fimc->out_frame.fmt->memplanes; i++) { |
|
unsigned long size = fimc->payload[i]; |
|
|
|
if (vb2_plane_size(vb, i) < size) { |
|
v4l2_err(&fimc->ve.vdev, |
|
"User buffer too small (%ld < %ld)\n", |
|
vb2_plane_size(vb, i), size); |
|
return -EINVAL; |
|
} |
|
vb2_set_plane_payload(vb, i, size); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void buffer_queue(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct flite_buffer *buf |
|
= container_of(vbuf, struct flite_buffer, vb); |
|
struct fimc_lite *fimc = vb2_get_drv_priv(vb->vb2_queue); |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
buf->addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
|
|
|
buf->index = fimc->buf_index++; |
|
if (fimc->buf_index >= fimc->reqbufs_count) |
|
fimc->buf_index = 0; |
|
|
|
if (!test_bit(ST_FLITE_SUSPENDED, &fimc->state) && |
|
!test_bit(ST_FLITE_STREAM, &fimc->state) && |
|
list_empty(&fimc->active_buf_q)) { |
|
flite_hw_set_dma_buffer(fimc, buf); |
|
fimc_lite_active_queue_add(fimc, buf); |
|
} else { |
|
fimc_lite_pending_queue_add(fimc, buf); |
|
} |
|
|
|
if (vb2_is_streaming(&fimc->vb_queue) && |
|
!list_empty(&fimc->pending_buf_q) && |
|
!test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) { |
|
flite_hw_capture_start(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state)) |
|
fimc_pipeline_call(&fimc->ve, set_stream, 1); |
|
return; |
|
} |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
} |
|
|
|
static const struct vb2_ops fimc_lite_qops = { |
|
.queue_setup = queue_setup, |
|
.buf_prepare = buffer_prepare, |
|
.buf_queue = buffer_queue, |
|
.wait_prepare = vb2_ops_wait_prepare, |
|
.wait_finish = vb2_ops_wait_finish, |
|
.start_streaming = start_streaming, |
|
.stop_streaming = stop_streaming, |
|
}; |
|
|
|
static void fimc_lite_clear_event_counters(struct fimc_lite *fimc) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
memset(&fimc->events, 0, sizeof(fimc->events)); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
} |
|
|
|
static int fimc_lite_open(struct file *file) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct media_entity *me = &fimc->ve.vdev.entity; |
|
int ret; |
|
|
|
mutex_lock(&fimc->lock); |
|
if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) { |
|
ret = -EBUSY; |
|
goto unlock; |
|
} |
|
|
|
set_bit(ST_FLITE_IN_USE, &fimc->state); |
|
ret = pm_runtime_get_sync(&fimc->pdev->dev); |
|
if (ret < 0) |
|
goto err_pm; |
|
|
|
ret = v4l2_fh_open(file); |
|
if (ret < 0) |
|
goto err_pm; |
|
|
|
if (!v4l2_fh_is_singular_file(file) || |
|
atomic_read(&fimc->out_path) != FIMC_IO_DMA) |
|
goto unlock; |
|
|
|
mutex_lock(&me->graph_obj.mdev->graph_mutex); |
|
|
|
ret = fimc_pipeline_call(&fimc->ve, open, me, true); |
|
|
|
/* Mark video pipeline ending at this video node as in use. */ |
|
if (ret == 0) |
|
me->use_count++; |
|
|
|
mutex_unlock(&me->graph_obj.mdev->graph_mutex); |
|
|
|
if (!ret) { |
|
fimc_lite_clear_event_counters(fimc); |
|
goto unlock; |
|
} |
|
|
|
v4l2_fh_release(file); |
|
err_pm: |
|
pm_runtime_put_sync(&fimc->pdev->dev); |
|
clear_bit(ST_FLITE_IN_USE, &fimc->state); |
|
unlock: |
|
mutex_unlock(&fimc->lock); |
|
return ret; |
|
} |
|
|
|
static int fimc_lite_release(struct file *file) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct media_entity *entity = &fimc->ve.vdev.entity; |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
if (v4l2_fh_is_singular_file(file) && |
|
atomic_read(&fimc->out_path) == FIMC_IO_DMA) { |
|
if (fimc->streaming) { |
|
media_pipeline_stop(entity); |
|
fimc->streaming = false; |
|
} |
|
fimc_lite_stop_capture(fimc, false); |
|
fimc_pipeline_call(&fimc->ve, close); |
|
clear_bit(ST_FLITE_IN_USE, &fimc->state); |
|
|
|
mutex_lock(&entity->graph_obj.mdev->graph_mutex); |
|
entity->use_count--; |
|
mutex_unlock(&entity->graph_obj.mdev->graph_mutex); |
|
} |
|
|
|
_vb2_fop_release(file, NULL); |
|
pm_runtime_put(&fimc->pdev->dev); |
|
clear_bit(ST_FLITE_SUSPENDED, &fimc->state); |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static const struct v4l2_file_operations fimc_lite_fops = { |
|
.owner = THIS_MODULE, |
|
.open = fimc_lite_open, |
|
.release = fimc_lite_release, |
|
.poll = vb2_fop_poll, |
|
.unlocked_ioctl = video_ioctl2, |
|
.mmap = vb2_fop_mmap, |
|
}; |
|
|
|
/* |
|
* Format and crop negotiation helpers |
|
*/ |
|
|
|
static const struct fimc_fmt *fimc_lite_subdev_try_fmt(struct fimc_lite *fimc, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_format *format) |
|
{ |
|
struct flite_drvdata *dd = fimc->dd; |
|
struct v4l2_mbus_framefmt *mf = &format->format; |
|
const struct fimc_fmt *fmt = NULL; |
|
|
|
if (format->pad == FLITE_SD_PAD_SINK) { |
|
v4l_bound_align_image(&mf->width, 8, dd->max_width, |
|
ffs(dd->out_width_align) - 1, |
|
&mf->height, 0, dd->max_height, 0, 0); |
|
|
|
fmt = fimc_lite_find_format(NULL, &mf->code, 0, 0); |
|
if (WARN_ON(!fmt)) |
|
return NULL; |
|
|
|
mf->colorspace = fmt->colorspace; |
|
mf->code = fmt->mbus_code; |
|
} else { |
|
struct flite_frame *sink = &fimc->inp_frame; |
|
struct v4l2_mbus_framefmt *sink_fmt; |
|
struct v4l2_rect *rect; |
|
|
|
if (format->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
sink_fmt = v4l2_subdev_get_try_format(&fimc->subdev, cfg, |
|
FLITE_SD_PAD_SINK); |
|
|
|
mf->code = sink_fmt->code; |
|
mf->colorspace = sink_fmt->colorspace; |
|
|
|
rect = v4l2_subdev_get_try_crop(&fimc->subdev, cfg, |
|
FLITE_SD_PAD_SINK); |
|
} else { |
|
mf->code = sink->fmt->mbus_code; |
|
mf->colorspace = sink->fmt->colorspace; |
|
rect = &sink->rect; |
|
} |
|
|
|
/* Allow changing format only on sink pad */ |
|
mf->width = rect->width; |
|
mf->height = rect->height; |
|
} |
|
|
|
mf->field = V4L2_FIELD_NONE; |
|
|
|
v4l2_dbg(1, debug, &fimc->subdev, "code: %#x (%d), %dx%d\n", |
|
mf->code, mf->colorspace, mf->width, mf->height); |
|
|
|
return fmt; |
|
} |
|
|
|
static void fimc_lite_try_crop(struct fimc_lite *fimc, struct v4l2_rect *r) |
|
{ |
|
struct flite_frame *frame = &fimc->inp_frame; |
|
|
|
v4l_bound_align_image(&r->width, 0, frame->f_width, 0, |
|
&r->height, 0, frame->f_height, 0, 0); |
|
|
|
/* Adjust left/top if cropping rectangle got out of bounds */ |
|
r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width); |
|
r->left = round_down(r->left, fimc->dd->win_hor_offs_align); |
|
r->top = clamp_t(u32, r->top, 0, frame->f_height - r->height); |
|
|
|
v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, sink fmt: %dx%d\n", |
|
r->left, r->top, r->width, r->height, |
|
frame->f_width, frame->f_height); |
|
} |
|
|
|
static void fimc_lite_try_compose(struct fimc_lite *fimc, struct v4l2_rect *r) |
|
{ |
|
struct flite_frame *frame = &fimc->out_frame; |
|
struct v4l2_rect *crop_rect = &fimc->inp_frame.rect; |
|
|
|
/* Scaling is not supported so we enforce compose rectangle size |
|
same as size of the sink crop rectangle. */ |
|
r->width = crop_rect->width; |
|
r->height = crop_rect->height; |
|
|
|
/* Adjust left/top if the composing rectangle got out of bounds */ |
|
r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width); |
|
r->left = round_down(r->left, fimc->dd->out_hor_offs_align); |
|
r->top = clamp_t(u32, r->top, 0, fimc->out_frame.f_height - r->height); |
|
|
|
v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, source fmt: %dx%d\n", |
|
r->left, r->top, r->width, r->height, |
|
frame->f_width, frame->f_height); |
|
} |
|
|
|
/* |
|
* Video node ioctl operations |
|
*/ |
|
static int fimc_lite_querycap(struct file *file, void *priv, |
|
struct v4l2_capability *cap) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
|
|
strscpy(cap->driver, FIMC_LITE_DRV_NAME, sizeof(cap->driver)); |
|
strscpy(cap->card, FIMC_LITE_DRV_NAME, sizeof(cap->card)); |
|
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", |
|
dev_name(&fimc->pdev->dev)); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_enum_fmt(struct file *file, void *priv, |
|
struct v4l2_fmtdesc *f) |
|
{ |
|
const struct fimc_fmt *fmt; |
|
|
|
if (f->index >= ARRAY_SIZE(fimc_lite_formats)) |
|
return -EINVAL; |
|
|
|
fmt = &fimc_lite_formats[f->index]; |
|
f->pixelformat = fmt->fourcc; |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_lite_g_fmt_mplane(struct file *file, void *fh, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; |
|
struct v4l2_plane_pix_format *plane_fmt = &pixm->plane_fmt[0]; |
|
struct flite_frame *frame = &fimc->out_frame; |
|
const struct fimc_fmt *fmt = frame->fmt; |
|
|
|
plane_fmt->bytesperline = (frame->f_width * fmt->depth[0]) / 8; |
|
plane_fmt->sizeimage = plane_fmt->bytesperline * frame->f_height; |
|
|
|
pixm->num_planes = fmt->memplanes; |
|
pixm->pixelformat = fmt->fourcc; |
|
pixm->width = frame->f_width; |
|
pixm->height = frame->f_height; |
|
pixm->field = V4L2_FIELD_NONE; |
|
pixm->colorspace = fmt->colorspace; |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_try_fmt(struct fimc_lite *fimc, |
|
struct v4l2_pix_format_mplane *pixm, |
|
const struct fimc_fmt **ffmt) |
|
{ |
|
u32 bpl = pixm->plane_fmt[0].bytesperline; |
|
struct flite_drvdata *dd = fimc->dd; |
|
const struct fimc_fmt *inp_fmt = fimc->inp_frame.fmt; |
|
const struct fimc_fmt *fmt; |
|
|
|
if (WARN_ON(inp_fmt == NULL)) |
|
return -EINVAL; |
|
/* |
|
* We allow some flexibility only for YUV formats. In case of raw |
|
* raw Bayer the FIMC-LITE's output format must match its camera |
|
* interface input format. |
|
*/ |
|
if (inp_fmt->flags & FMT_FLAGS_YUV) |
|
fmt = fimc_lite_find_format(&pixm->pixelformat, NULL, |
|
inp_fmt->flags, 0); |
|
else |
|
fmt = inp_fmt; |
|
|
|
if (WARN_ON(fmt == NULL)) |
|
return -EINVAL; |
|
if (ffmt) |
|
*ffmt = fmt; |
|
v4l_bound_align_image(&pixm->width, 8, dd->max_width, |
|
ffs(dd->out_width_align) - 1, |
|
&pixm->height, 0, dd->max_height, 0, 0); |
|
|
|
if ((bpl == 0 || ((bpl * 8) / fmt->depth[0]) < pixm->width)) |
|
pixm->plane_fmt[0].bytesperline = (pixm->width * |
|
fmt->depth[0]) / 8; |
|
|
|
if (pixm->plane_fmt[0].sizeimage == 0) |
|
pixm->plane_fmt[0].sizeimage = (pixm->width * pixm->height * |
|
fmt->depth[0]) / 8; |
|
pixm->num_planes = fmt->memplanes; |
|
pixm->pixelformat = fmt->fourcc; |
|
pixm->colorspace = fmt->colorspace; |
|
pixm->field = V4L2_FIELD_NONE; |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_try_fmt_mplane(struct file *file, void *fh, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
return fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, NULL); |
|
} |
|
|
|
static int fimc_lite_s_fmt_mplane(struct file *file, void *priv, |
|
struct v4l2_format *f) |
|
{ |
|
struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct flite_frame *frame = &fimc->out_frame; |
|
const struct fimc_fmt *fmt = NULL; |
|
int ret; |
|
|
|
if (vb2_is_busy(&fimc->vb_queue)) |
|
return -EBUSY; |
|
|
|
ret = fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, &fmt); |
|
if (ret < 0) |
|
return ret; |
|
|
|
frame->fmt = fmt; |
|
fimc->payload[0] = max((pixm->width * pixm->height * fmt->depth[0]) / 8, |
|
pixm->plane_fmt[0].sizeimage); |
|
frame->f_width = pixm->width; |
|
frame->f_height = pixm->height; |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_pipeline_validate(struct fimc_lite *fimc) |
|
{ |
|
struct v4l2_subdev *sd = &fimc->subdev; |
|
struct v4l2_subdev_format sink_fmt, src_fmt; |
|
struct media_pad *pad; |
|
int ret; |
|
|
|
while (1) { |
|
/* Retrieve format at the sink pad */ |
|
pad = &sd->entity.pads[0]; |
|
if (!(pad->flags & MEDIA_PAD_FL_SINK)) |
|
break; |
|
/* Don't call FIMC subdev operation to avoid nested locking */ |
|
if (sd == &fimc->subdev) { |
|
struct flite_frame *ff = &fimc->out_frame; |
|
sink_fmt.format.width = ff->f_width; |
|
sink_fmt.format.height = ff->f_height; |
|
sink_fmt.format.code = fimc->inp_frame.fmt->mbus_code; |
|
} else { |
|
sink_fmt.pad = pad->index; |
|
sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; |
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, |
|
&sink_fmt); |
|
if (ret < 0 && ret != -ENOIOCTLCMD) |
|
return -EPIPE; |
|
} |
|
/* Retrieve format at the source pad */ |
|
pad = media_entity_remote_pad(pad); |
|
if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) |
|
break; |
|
|
|
sd = media_entity_to_v4l2_subdev(pad->entity); |
|
src_fmt.pad = pad->index; |
|
src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; |
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); |
|
if (ret < 0 && ret != -ENOIOCTLCMD) |
|
return -EPIPE; |
|
|
|
if (src_fmt.format.width != sink_fmt.format.width || |
|
src_fmt.format.height != sink_fmt.format.height || |
|
src_fmt.format.code != sink_fmt.format.code) |
|
return -EPIPE; |
|
} |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_streamon(struct file *file, void *priv, |
|
enum v4l2_buf_type type) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct media_entity *entity = &fimc->ve.vdev.entity; |
|
int ret; |
|
|
|
if (fimc_lite_active(fimc)) |
|
return -EBUSY; |
|
|
|
ret = media_pipeline_start(entity, &fimc->ve.pipe->mp); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = fimc_pipeline_validate(fimc); |
|
if (ret < 0) |
|
goto err_p_stop; |
|
|
|
fimc->sensor = fimc_find_remote_sensor(&fimc->subdev.entity); |
|
|
|
ret = vb2_ioctl_streamon(file, priv, type); |
|
if (!ret) { |
|
fimc->streaming = true; |
|
return ret; |
|
} |
|
|
|
err_p_stop: |
|
media_pipeline_stop(entity); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_streamoff(struct file *file, void *priv, |
|
enum v4l2_buf_type type) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
int ret; |
|
|
|
ret = vb2_ioctl_streamoff(file, priv, type); |
|
if (ret < 0) |
|
return ret; |
|
|
|
media_pipeline_stop(&fimc->ve.vdev.entity); |
|
fimc->streaming = false; |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_reqbufs(struct file *file, void *priv, |
|
struct v4l2_requestbuffers *reqbufs) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
int ret; |
|
|
|
reqbufs->count = max_t(u32, FLITE_REQ_BUFS_MIN, reqbufs->count); |
|
ret = vb2_ioctl_reqbufs(file, priv, reqbufs); |
|
if (!ret) |
|
fimc->reqbufs_count = reqbufs->count; |
|
|
|
return ret; |
|
} |
|
|
|
static int fimc_lite_g_selection(struct file *file, void *fh, |
|
struct v4l2_selection *sel) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct flite_frame *f = &fimc->out_frame; |
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
|
|
switch (sel->target) { |
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
|
sel->r.left = 0; |
|
sel->r.top = 0; |
|
sel->r.width = f->f_width; |
|
sel->r.height = f->f_height; |
|
return 0; |
|
|
|
case V4L2_SEL_TGT_COMPOSE: |
|
sel->r = f->rect; |
|
return 0; |
|
} |
|
|
|
return -EINVAL; |
|
} |
|
|
|
static int fimc_lite_s_selection(struct file *file, void *fh, |
|
struct v4l2_selection *sel) |
|
{ |
|
struct fimc_lite *fimc = video_drvdata(file); |
|
struct flite_frame *f = &fimc->out_frame; |
|
struct v4l2_rect rect = sel->r; |
|
unsigned long flags; |
|
|
|
if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || |
|
sel->target != V4L2_SEL_TGT_COMPOSE) |
|
return -EINVAL; |
|
|
|
fimc_lite_try_compose(fimc, &rect); |
|
|
|
if ((sel->flags & V4L2_SEL_FLAG_LE) && |
|
!v4l2_rect_enclosed(&rect, &sel->r)) |
|
return -ERANGE; |
|
|
|
if ((sel->flags & V4L2_SEL_FLAG_GE) && |
|
!v4l2_rect_enclosed(&sel->r, &rect)) |
|
return -ERANGE; |
|
|
|
sel->r = rect; |
|
spin_lock_irqsave(&fimc->slock, flags); |
|
f->rect = rect; |
|
set_bit(ST_FLITE_CONFIG, &fimc->state); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct v4l2_ioctl_ops fimc_lite_ioctl_ops = { |
|
.vidioc_querycap = fimc_lite_querycap, |
|
.vidioc_enum_fmt_vid_cap = fimc_lite_enum_fmt, |
|
.vidioc_try_fmt_vid_cap_mplane = fimc_lite_try_fmt_mplane, |
|
.vidioc_s_fmt_vid_cap_mplane = fimc_lite_s_fmt_mplane, |
|
.vidioc_g_fmt_vid_cap_mplane = fimc_lite_g_fmt_mplane, |
|
.vidioc_g_selection = fimc_lite_g_selection, |
|
.vidioc_s_selection = fimc_lite_s_selection, |
|
.vidioc_reqbufs = fimc_lite_reqbufs, |
|
.vidioc_querybuf = vb2_ioctl_querybuf, |
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf, |
|
.vidioc_create_bufs = vb2_ioctl_create_bufs, |
|
.vidioc_qbuf = vb2_ioctl_qbuf, |
|
.vidioc_dqbuf = vb2_ioctl_dqbuf, |
|
.vidioc_streamon = fimc_lite_streamon, |
|
.vidioc_streamoff = fimc_lite_streamoff, |
|
}; |
|
|
|
/* Capture subdev media entity operations */ |
|
static int fimc_lite_link_setup(struct media_entity *entity, |
|
const struct media_pad *local, |
|
const struct media_pad *remote, u32 flags) |
|
{ |
|
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
int ret = 0; |
|
|
|
if (WARN_ON(fimc == NULL)) |
|
return 0; |
|
|
|
v4l2_dbg(1, debug, sd, "%s: %s --> %s, flags: 0x%x. source_id: 0x%x\n", |
|
__func__, remote->entity->name, local->entity->name, |
|
flags, fimc->source_subdev_grp_id); |
|
|
|
switch (local->index) { |
|
case FLITE_SD_PAD_SINK: |
|
if (flags & MEDIA_LNK_FL_ENABLED) { |
|
if (fimc->source_subdev_grp_id == 0) |
|
fimc->source_subdev_grp_id = sd->grp_id; |
|
else |
|
ret = -EBUSY; |
|
} else { |
|
fimc->source_subdev_grp_id = 0; |
|
fimc->sensor = NULL; |
|
} |
|
break; |
|
|
|
case FLITE_SD_PAD_SOURCE_DMA: |
|
if (!(flags & MEDIA_LNK_FL_ENABLED)) |
|
atomic_set(&fimc->out_path, FIMC_IO_NONE); |
|
else |
|
atomic_set(&fimc->out_path, FIMC_IO_DMA); |
|
break; |
|
|
|
case FLITE_SD_PAD_SOURCE_ISP: |
|
if (!(flags & MEDIA_LNK_FL_ENABLED)) |
|
atomic_set(&fimc->out_path, FIMC_IO_NONE); |
|
else |
|
atomic_set(&fimc->out_path, FIMC_IO_ISP); |
|
break; |
|
|
|
default: |
|
v4l2_err(sd, "Invalid pad index\n"); |
|
ret = -EINVAL; |
|
} |
|
mb(); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct media_entity_operations fimc_lite_subdev_media_ops = { |
|
.link_setup = fimc_lite_link_setup, |
|
}; |
|
|
|
static int fimc_lite_subdev_enum_mbus_code(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_mbus_code_enum *code) |
|
{ |
|
const struct fimc_fmt *fmt; |
|
|
|
fmt = fimc_lite_find_format(NULL, NULL, 0, code->index); |
|
if (!fmt) |
|
return -EINVAL; |
|
code->code = fmt->mbus_code; |
|
return 0; |
|
} |
|
|
|
static struct v4l2_mbus_framefmt *__fimc_lite_subdev_get_try_fmt( |
|
struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, unsigned int pad) |
|
{ |
|
if (pad != FLITE_SD_PAD_SINK) |
|
pad = FLITE_SD_PAD_SOURCE_DMA; |
|
|
|
return v4l2_subdev_get_try_format(sd, cfg, pad); |
|
} |
|
|
|
static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_format *fmt) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
struct v4l2_mbus_framefmt *mf = &fmt->format; |
|
struct flite_frame *f = &fimc->inp_frame; |
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
mf = __fimc_lite_subdev_get_try_fmt(sd, cfg, fmt->pad); |
|
fmt->format = *mf; |
|
return 0; |
|
} |
|
|
|
mutex_lock(&fimc->lock); |
|
mf->colorspace = f->fmt->colorspace; |
|
mf->code = f->fmt->mbus_code; |
|
|
|
if (fmt->pad == FLITE_SD_PAD_SINK) { |
|
/* full camera input frame size */ |
|
mf->width = f->f_width; |
|
mf->height = f->f_height; |
|
} else { |
|
/* crop size */ |
|
mf->width = f->rect.width; |
|
mf->height = f->rect.height; |
|
} |
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_subdev_set_fmt(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_format *fmt) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
struct v4l2_mbus_framefmt *mf = &fmt->format; |
|
struct flite_frame *sink = &fimc->inp_frame; |
|
struct flite_frame *source = &fimc->out_frame; |
|
const struct fimc_fmt *ffmt; |
|
|
|
v4l2_dbg(1, debug, sd, "pad%d: code: 0x%x, %dx%d\n", |
|
fmt->pad, mf->code, mf->width, mf->height); |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
if ((atomic_read(&fimc->out_path) == FIMC_IO_ISP && |
|
sd->entity.stream_count > 0) || |
|
(atomic_read(&fimc->out_path) == FIMC_IO_DMA && |
|
vb2_is_busy(&fimc->vb_queue))) { |
|
mutex_unlock(&fimc->lock); |
|
return -EBUSY; |
|
} |
|
|
|
ffmt = fimc_lite_subdev_try_fmt(fimc, cfg, fmt); |
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
struct v4l2_mbus_framefmt *src_fmt; |
|
|
|
mf = __fimc_lite_subdev_get_try_fmt(sd, cfg, fmt->pad); |
|
*mf = fmt->format; |
|
|
|
if (fmt->pad == FLITE_SD_PAD_SINK) { |
|
unsigned int pad = FLITE_SD_PAD_SOURCE_DMA; |
|
src_fmt = __fimc_lite_subdev_get_try_fmt(sd, cfg, pad); |
|
*src_fmt = *mf; |
|
} |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
if (fmt->pad == FLITE_SD_PAD_SINK) { |
|
sink->f_width = mf->width; |
|
sink->f_height = mf->height; |
|
sink->fmt = ffmt; |
|
/* Set sink crop rectangle */ |
|
sink->rect.width = mf->width; |
|
sink->rect.height = mf->height; |
|
sink->rect.left = 0; |
|
sink->rect.top = 0; |
|
/* Reset source format and crop rectangle */ |
|
source->rect = sink->rect; |
|
source->f_width = mf->width; |
|
source->f_height = mf->height; |
|
} |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_subdev_get_selection(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_selection *sel) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
struct flite_frame *f = &fimc->inp_frame; |
|
|
|
if ((sel->target != V4L2_SEL_TGT_CROP && |
|
sel->target != V4L2_SEL_TGT_CROP_BOUNDS) || |
|
sel->pad != FLITE_SD_PAD_SINK) |
|
return -EINVAL; |
|
|
|
if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
sel->r = *v4l2_subdev_get_try_crop(sd, cfg, sel->pad); |
|
return 0; |
|
} |
|
|
|
mutex_lock(&fimc->lock); |
|
if (sel->target == V4L2_SEL_TGT_CROP) { |
|
sel->r = f->rect; |
|
} else { |
|
sel->r.left = 0; |
|
sel->r.top = 0; |
|
sel->r.width = f->f_width; |
|
sel->r.height = f->f_height; |
|
} |
|
mutex_unlock(&fimc->lock); |
|
|
|
v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d\n", |
|
__func__, f->rect.left, f->rect.top, f->rect.width, |
|
f->rect.height, f->f_width, f->f_height); |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_lite_subdev_set_selection(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_selection *sel) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
struct flite_frame *f = &fimc->inp_frame; |
|
int ret = 0; |
|
|
|
if (sel->target != V4L2_SEL_TGT_CROP || sel->pad != FLITE_SD_PAD_SINK) |
|
return -EINVAL; |
|
|
|
mutex_lock(&fimc->lock); |
|
fimc_lite_try_crop(fimc, &sel->r); |
|
|
|
if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
*v4l2_subdev_get_try_crop(sd, cfg, sel->pad) = sel->r; |
|
} else { |
|
unsigned long flags; |
|
spin_lock_irqsave(&fimc->slock, flags); |
|
f->rect = sel->r; |
|
/* Same crop rectangle on the source pad */ |
|
fimc->out_frame.rect = sel->r; |
|
set_bit(ST_FLITE_CONFIG, &fimc->state); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
} |
|
mutex_unlock(&fimc->lock); |
|
|
|
v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d\n", |
|
__func__, f->rect.left, f->rect.top, f->rect.width, |
|
f->rect.height, f->f_width, f->f_height); |
|
|
|
return ret; |
|
} |
|
|
|
static int fimc_lite_subdev_s_stream(struct v4l2_subdev *sd, int on) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
unsigned long flags; |
|
int ret; |
|
|
|
/* |
|
* Find sensor subdev linked to FIMC-LITE directly or through |
|
* MIPI-CSIS. This is required for configuration where FIMC-LITE |
|
* is used as a subdev only and feeds data internally to FIMC-IS. |
|
* The pipeline links are protected through entity.stream_count |
|
* so there is no need to take the media graph mutex here. |
|
*/ |
|
fimc->sensor = fimc_find_remote_sensor(&sd->entity); |
|
|
|
if (atomic_read(&fimc->out_path) != FIMC_IO_ISP) |
|
return -ENOIOCTLCMD; |
|
|
|
mutex_lock(&fimc->lock); |
|
if (on) { |
|
flite_hw_reset(fimc); |
|
ret = fimc_lite_hw_init(fimc, true); |
|
if (!ret) { |
|
spin_lock_irqsave(&fimc->slock, flags); |
|
flite_hw_capture_start(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
} |
|
} else { |
|
set_bit(ST_FLITE_OFF, &fimc->state); |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
flite_hw_capture_stop(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
ret = wait_event_timeout(fimc->irq_queue, |
|
!test_bit(ST_FLITE_OFF, &fimc->state), |
|
msecs_to_jiffies(200)); |
|
if (ret == 0) |
|
v4l2_err(sd, "s_stream(0) timeout\n"); |
|
clear_bit(ST_FLITE_RUN, &fimc->state); |
|
} |
|
|
|
mutex_unlock(&fimc->lock); |
|
return ret; |
|
} |
|
|
|
static int fimc_lite_log_status(struct v4l2_subdev *sd) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
|
|
flite_hw_dump_regs(fimc, __func__); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_subdev_registered(struct v4l2_subdev *sd) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
struct vb2_queue *q = &fimc->vb_queue; |
|
struct video_device *vfd = &fimc->ve.vdev; |
|
int ret; |
|
|
|
memset(vfd, 0, sizeof(*vfd)); |
|
atomic_set(&fimc->out_path, FIMC_IO_DMA); |
|
|
|
snprintf(vfd->name, sizeof(vfd->name), "fimc-lite.%d.capture", |
|
fimc->index); |
|
|
|
vfd->fops = &fimc_lite_fops; |
|
vfd->ioctl_ops = &fimc_lite_ioctl_ops; |
|
vfd->v4l2_dev = sd->v4l2_dev; |
|
vfd->minor = -1; |
|
vfd->release = video_device_release_empty; |
|
vfd->queue = q; |
|
vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING; |
|
fimc->reqbufs_count = 0; |
|
|
|
INIT_LIST_HEAD(&fimc->pending_buf_q); |
|
INIT_LIST_HEAD(&fimc->active_buf_q); |
|
|
|
memset(q, 0, sizeof(*q)); |
|
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
|
q->io_modes = VB2_MMAP | VB2_USERPTR; |
|
q->ops = &fimc_lite_qops; |
|
q->mem_ops = &vb2_dma_contig_memops; |
|
q->buf_struct_size = sizeof(struct flite_buffer); |
|
q->drv_priv = fimc; |
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
|
q->lock = &fimc->lock; |
|
q->dev = &fimc->pdev->dev; |
|
|
|
ret = vb2_queue_init(q); |
|
if (ret < 0) |
|
return ret; |
|
|
|
fimc->vd_pad.flags = MEDIA_PAD_FL_SINK; |
|
ret = media_entity_pads_init(&vfd->entity, 1, &fimc->vd_pad); |
|
if (ret < 0) |
|
return ret; |
|
|
|
video_set_drvdata(vfd, fimc); |
|
fimc->ve.pipe = v4l2_get_subdev_hostdata(sd); |
|
|
|
ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1); |
|
if (ret < 0) { |
|
media_entity_cleanup(&vfd->entity); |
|
fimc->ve.pipe = NULL; |
|
return ret; |
|
} |
|
|
|
v4l2_info(sd->v4l2_dev, "Registered %s as /dev/%s\n", |
|
vfd->name, video_device_node_name(vfd)); |
|
return 0; |
|
} |
|
|
|
static void fimc_lite_subdev_unregistered(struct v4l2_subdev *sd) |
|
{ |
|
struct fimc_lite *fimc = v4l2_get_subdevdata(sd); |
|
|
|
if (fimc == NULL) |
|
return; |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
if (video_is_registered(&fimc->ve.vdev)) { |
|
video_unregister_device(&fimc->ve.vdev); |
|
media_entity_cleanup(&fimc->ve.vdev.entity); |
|
fimc->ve.pipe = NULL; |
|
} |
|
|
|
mutex_unlock(&fimc->lock); |
|
} |
|
|
|
static const struct v4l2_subdev_internal_ops fimc_lite_subdev_internal_ops = { |
|
.registered = fimc_lite_subdev_registered, |
|
.unregistered = fimc_lite_subdev_unregistered, |
|
}; |
|
|
|
static const struct v4l2_subdev_pad_ops fimc_lite_subdev_pad_ops = { |
|
.enum_mbus_code = fimc_lite_subdev_enum_mbus_code, |
|
.get_selection = fimc_lite_subdev_get_selection, |
|
.set_selection = fimc_lite_subdev_set_selection, |
|
.get_fmt = fimc_lite_subdev_get_fmt, |
|
.set_fmt = fimc_lite_subdev_set_fmt, |
|
}; |
|
|
|
static const struct v4l2_subdev_video_ops fimc_lite_subdev_video_ops = { |
|
.s_stream = fimc_lite_subdev_s_stream, |
|
}; |
|
|
|
static const struct v4l2_subdev_core_ops fimc_lite_core_ops = { |
|
.log_status = fimc_lite_log_status, |
|
}; |
|
|
|
static const struct v4l2_subdev_ops fimc_lite_subdev_ops = { |
|
.core = &fimc_lite_core_ops, |
|
.video = &fimc_lite_subdev_video_ops, |
|
.pad = &fimc_lite_subdev_pad_ops, |
|
}; |
|
|
|
static int fimc_lite_s_ctrl(struct v4l2_ctrl *ctrl) |
|
{ |
|
struct fimc_lite *fimc = container_of(ctrl->handler, struct fimc_lite, |
|
ctrl_handler); |
|
set_bit(ST_FLITE_CONFIG, &fimc->state); |
|
return 0; |
|
} |
|
|
|
static const struct v4l2_ctrl_ops fimc_lite_ctrl_ops = { |
|
.s_ctrl = fimc_lite_s_ctrl, |
|
}; |
|
|
|
static const struct v4l2_ctrl_config fimc_lite_ctrl = { |
|
.ops = &fimc_lite_ctrl_ops, |
|
.id = V4L2_CTRL_CLASS_USER | 0x1001, |
|
.type = V4L2_CTRL_TYPE_BOOLEAN, |
|
.name = "Test Pattern 640x480", |
|
.step = 1, |
|
}; |
|
|
|
static void fimc_lite_set_default_config(struct fimc_lite *fimc) |
|
{ |
|
struct flite_frame *sink = &fimc->inp_frame; |
|
struct flite_frame *source = &fimc->out_frame; |
|
|
|
sink->fmt = &fimc_lite_formats[0]; |
|
sink->f_width = FLITE_DEFAULT_WIDTH; |
|
sink->f_height = FLITE_DEFAULT_HEIGHT; |
|
|
|
sink->rect.width = FLITE_DEFAULT_WIDTH; |
|
sink->rect.height = FLITE_DEFAULT_HEIGHT; |
|
sink->rect.left = 0; |
|
sink->rect.top = 0; |
|
|
|
*source = *sink; |
|
} |
|
|
|
static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc) |
|
{ |
|
struct v4l2_ctrl_handler *handler = &fimc->ctrl_handler; |
|
struct v4l2_subdev *sd = &fimc->subdev; |
|
int ret; |
|
|
|
v4l2_subdev_init(sd, &fimc_lite_subdev_ops); |
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
|
snprintf(sd->name, sizeof(sd->name), "FIMC-LITE.%d", fimc->index); |
|
|
|
fimc->subdev_pads[FLITE_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; |
|
fimc->subdev_pads[FLITE_SD_PAD_SOURCE_DMA].flags = MEDIA_PAD_FL_SOURCE; |
|
fimc->subdev_pads[FLITE_SD_PAD_SOURCE_ISP].flags = MEDIA_PAD_FL_SOURCE; |
|
ret = media_entity_pads_init(&sd->entity, FLITE_SD_PADS_NUM, |
|
fimc->subdev_pads); |
|
if (ret) |
|
return ret; |
|
|
|
v4l2_ctrl_handler_init(handler, 1); |
|
fimc->test_pattern = v4l2_ctrl_new_custom(handler, &fimc_lite_ctrl, |
|
NULL); |
|
if (handler->error) { |
|
media_entity_cleanup(&sd->entity); |
|
return handler->error; |
|
} |
|
|
|
sd->ctrl_handler = handler; |
|
sd->internal_ops = &fimc_lite_subdev_internal_ops; |
|
sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; |
|
sd->entity.ops = &fimc_lite_subdev_media_ops; |
|
sd->owner = THIS_MODULE; |
|
v4l2_set_subdevdata(sd, fimc); |
|
|
|
return 0; |
|
} |
|
|
|
static void fimc_lite_unregister_capture_subdev(struct fimc_lite *fimc) |
|
{ |
|
struct v4l2_subdev *sd = &fimc->subdev; |
|
|
|
v4l2_device_unregister_subdev(sd); |
|
media_entity_cleanup(&sd->entity); |
|
v4l2_ctrl_handler_free(&fimc->ctrl_handler); |
|
v4l2_set_subdevdata(sd, NULL); |
|
} |
|
|
|
static void fimc_lite_clk_put(struct fimc_lite *fimc) |
|
{ |
|
if (IS_ERR(fimc->clock)) |
|
return; |
|
|
|
clk_put(fimc->clock); |
|
fimc->clock = ERR_PTR(-EINVAL); |
|
} |
|
|
|
static int fimc_lite_clk_get(struct fimc_lite *fimc) |
|
{ |
|
fimc->clock = clk_get(&fimc->pdev->dev, FLITE_CLK_NAME); |
|
return PTR_ERR_OR_ZERO(fimc->clock); |
|
} |
|
|
|
static const struct of_device_id flite_of_match[]; |
|
|
|
static int fimc_lite_probe(struct platform_device *pdev) |
|
{ |
|
struct flite_drvdata *drv_data = NULL; |
|
struct device *dev = &pdev->dev; |
|
const struct of_device_id *of_id; |
|
struct fimc_lite *fimc; |
|
struct resource *res; |
|
int ret; |
|
|
|
if (!dev->of_node) |
|
return -ENODEV; |
|
|
|
fimc = devm_kzalloc(dev, sizeof(*fimc), GFP_KERNEL); |
|
if (!fimc) |
|
return -ENOMEM; |
|
|
|
of_id = of_match_node(flite_of_match, dev->of_node); |
|
if (of_id) |
|
drv_data = (struct flite_drvdata *)of_id->data; |
|
fimc->index = of_alias_get_id(dev->of_node, "fimc-lite"); |
|
|
|
if (!drv_data || fimc->index >= drv_data->num_instances || |
|
fimc->index < 0) { |
|
dev_err(dev, "Wrong %pOF node alias\n", dev->of_node); |
|
return -EINVAL; |
|
} |
|
|
|
fimc->dd = drv_data; |
|
fimc->pdev = pdev; |
|
|
|
init_waitqueue_head(&fimc->irq_queue); |
|
spin_lock_init(&fimc->slock); |
|
mutex_init(&fimc->lock); |
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
|
fimc->regs = devm_ioremap_resource(dev, res); |
|
if (IS_ERR(fimc->regs)) |
|
return PTR_ERR(fimc->regs); |
|
|
|
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
|
if (res == NULL) { |
|
dev_err(dev, "Failed to get IRQ resource\n"); |
|
return -ENXIO; |
|
} |
|
|
|
ret = fimc_lite_clk_get(fimc); |
|
if (ret) |
|
return ret; |
|
|
|
ret = devm_request_irq(dev, res->start, flite_irq_handler, |
|
0, dev_name(dev), fimc); |
|
if (ret) { |
|
dev_err(dev, "Failed to install irq (%d)\n", ret); |
|
goto err_clk_put; |
|
} |
|
|
|
/* The video node will be created within the subdev's registered() op */ |
|
ret = fimc_lite_create_capture_subdev(fimc); |
|
if (ret) |
|
goto err_clk_put; |
|
|
|
platform_set_drvdata(pdev, fimc); |
|
pm_runtime_enable(dev); |
|
|
|
if (!pm_runtime_enabled(dev)) { |
|
ret = clk_prepare_enable(fimc->clock); |
|
if (ret < 0) |
|
goto err_sd; |
|
} |
|
|
|
vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32)); |
|
|
|
fimc_lite_set_default_config(fimc); |
|
|
|
dev_dbg(dev, "FIMC-LITE.%d registered successfully\n", |
|
fimc->index); |
|
return 0; |
|
|
|
err_sd: |
|
fimc_lite_unregister_capture_subdev(fimc); |
|
err_clk_put: |
|
fimc_lite_clk_put(fimc); |
|
return ret; |
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int fimc_lite_runtime_resume(struct device *dev) |
|
{ |
|
struct fimc_lite *fimc = dev_get_drvdata(dev); |
|
|
|
clk_prepare_enable(fimc->clock); |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_runtime_suspend(struct device *dev) |
|
{ |
|
struct fimc_lite *fimc = dev_get_drvdata(dev); |
|
|
|
clk_disable_unprepare(fimc->clock); |
|
return 0; |
|
} |
|
#endif |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int fimc_lite_resume(struct device *dev) |
|
{ |
|
struct fimc_lite *fimc = dev_get_drvdata(dev); |
|
struct flite_buffer *buf; |
|
unsigned long flags; |
|
int i; |
|
|
|
spin_lock_irqsave(&fimc->slock, flags); |
|
if (!test_and_clear_bit(ST_LPM, &fimc->state) || |
|
!test_bit(ST_FLITE_IN_USE, &fimc->state)) { |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
return 0; |
|
} |
|
flite_hw_reset(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
if (!test_and_clear_bit(ST_FLITE_SUSPENDED, &fimc->state)) |
|
return 0; |
|
|
|
INIT_LIST_HEAD(&fimc->active_buf_q); |
|
fimc_pipeline_call(&fimc->ve, open, |
|
&fimc->ve.vdev.entity, false); |
|
fimc_lite_hw_init(fimc, atomic_read(&fimc->out_path) == FIMC_IO_ISP); |
|
clear_bit(ST_FLITE_SUSPENDED, &fimc->state); |
|
|
|
for (i = 0; i < fimc->reqbufs_count; i++) { |
|
if (list_empty(&fimc->pending_buf_q)) |
|
break; |
|
buf = fimc_lite_pending_queue_pop(fimc); |
|
buffer_queue(&buf->vb.vb2_buf); |
|
} |
|
return 0; |
|
} |
|
|
|
static int fimc_lite_suspend(struct device *dev) |
|
{ |
|
struct fimc_lite *fimc = dev_get_drvdata(dev); |
|
bool suspend = test_bit(ST_FLITE_IN_USE, &fimc->state); |
|
int ret; |
|
|
|
if (test_and_set_bit(ST_LPM, &fimc->state)) |
|
return 0; |
|
|
|
ret = fimc_lite_stop_capture(fimc, suspend); |
|
if (ret < 0 || !fimc_lite_active(fimc)) |
|
return ret; |
|
|
|
return fimc_pipeline_call(&fimc->ve, close); |
|
} |
|
#endif /* CONFIG_PM_SLEEP */ |
|
|
|
static int fimc_lite_remove(struct platform_device *pdev) |
|
{ |
|
struct fimc_lite *fimc = platform_get_drvdata(pdev); |
|
struct device *dev = &pdev->dev; |
|
|
|
if (!pm_runtime_enabled(dev)) |
|
clk_disable_unprepare(fimc->clock); |
|
|
|
pm_runtime_disable(dev); |
|
pm_runtime_set_suspended(dev); |
|
fimc_lite_unregister_capture_subdev(fimc); |
|
vb2_dma_contig_clear_max_seg_size(dev); |
|
fimc_lite_clk_put(fimc); |
|
|
|
dev_info(dev, "Driver unloaded\n"); |
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops fimc_lite_pm_ops = { |
|
SET_SYSTEM_SLEEP_PM_OPS(fimc_lite_suspend, fimc_lite_resume) |
|
SET_RUNTIME_PM_OPS(fimc_lite_runtime_suspend, fimc_lite_runtime_resume, |
|
NULL) |
|
}; |
|
|
|
/* EXYNOS4412 */ |
|
static struct flite_drvdata fimc_lite_drvdata_exynos4 = { |
|
.max_width = 8192, |
|
.max_height = 8192, |
|
.out_width_align = 8, |
|
.win_hor_offs_align = 2, |
|
.out_hor_offs_align = 8, |
|
.max_dma_bufs = 1, |
|
.num_instances = 2, |
|
}; |
|
|
|
/* EXYNOS5250 */ |
|
static struct flite_drvdata fimc_lite_drvdata_exynos5 = { |
|
.max_width = 8192, |
|
.max_height = 8192, |
|
.out_width_align = 8, |
|
.win_hor_offs_align = 2, |
|
.out_hor_offs_align = 8, |
|
.max_dma_bufs = 32, |
|
.num_instances = 3, |
|
}; |
|
|
|
static const struct of_device_id flite_of_match[] = { |
|
{ |
|
.compatible = "samsung,exynos4212-fimc-lite", |
|
.data = &fimc_lite_drvdata_exynos4, |
|
}, |
|
{ |
|
.compatible = "samsung,exynos5250-fimc-lite", |
|
.data = &fimc_lite_drvdata_exynos5, |
|
}, |
|
{ /* sentinel */ }, |
|
}; |
|
MODULE_DEVICE_TABLE(of, flite_of_match); |
|
|
|
static struct platform_driver fimc_lite_driver = { |
|
.probe = fimc_lite_probe, |
|
.remove = fimc_lite_remove, |
|
.driver = { |
|
.of_match_table = flite_of_match, |
|
.name = FIMC_LITE_DRV_NAME, |
|
.pm = &fimc_lite_pm_ops, |
|
} |
|
}; |
|
module_platform_driver(fimc_lite_driver); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:" FIMC_LITE_DRV_NAME);
|
|
|