#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,
},
};
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;
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;
}
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);
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);
}
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));
return fimc_lite_reinit(fimc, suspend);
}
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,
.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_resume_and_get(&fimc->pdev->dev);
if (ret < 0)
goto err_in_use;
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);
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);
err_in_use:
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) {
video_device_pipeline_stop(&fimc->ve.vdev);
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,
};
static const struct fimc_fmt *fimc_lite_subdev_try_fmt(struct fimc_lite *fimc,
struct v4l2_subdev_state *sd_state,
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_state_get_format(sd_state,
FLITE_SD_PAD_SINK);
mf->code = sink_fmt->code;
mf->colorspace = sink_fmt->colorspace;
rect = v4l2_subdev_state_get_crop(sd_state,
FLITE_SD_PAD_SINK);
} else {
mf->code = sink->fmt->mbus_code;
mf->colorspace = sink->fmt->colorspace;
rect = &sink->rect;
}
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);
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)/%ux%u, 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;
r->width = crop_rect->width;
r->height = crop_rect->height;
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)/%ux%u, source fmt: %dx%d\n",
r->left, r->top, r->width, r->height,
frame->f_width, frame->f_height);
}
static int fimc_lite_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strscpy(cap->driver, FIMC_LITE_DRV_NAME, sizeof(cap->driver));
strscpy(cap->card, FIMC_LITE_DRV_NAME, sizeof(cap->card));
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;
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)
{
const 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 = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct v4l2_subdev_format src_fmt = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct media_pad *pad;
int ret;
while (1) {
pad = &sd->entity.pads[0];
if (!(pad->flags & MEDIA_PAD_FL_SINK))
break;
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;
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL,
&sink_fmt);
if (ret < 0 && ret != -ENOIOCTLCMD)
return -EPIPE;
}
pad = media_pad_remote_pad_first(pad);
if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
break;
sd = media_entity_to_v4l2_subdev(pad->entity);
src_fmt.pad = pad->index;
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);
int ret;
if (fimc_lite_active(fimc))
return -EBUSY;
ret = video_device_pipeline_start(&fimc->ve.vdev, &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:
video_device_pipeline_stop(&fimc->ve.vdev);
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;
video_device_pipeline_stop(&fimc->ve.vdev);
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,
};
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_state *sd_state,
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_state *sd_state, unsigned int pad)
{
if (pad != FLITE_SD_PAD_SINK)
pad = FLITE_SD_PAD_SOURCE_DMA;
return v4l2_subdev_state_get_format(sd_state, pad);
}
static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
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, sd_state, 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) {
mf->width = f->f_width;
mf->height = f->f_height;
} else {
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_state *sd_state,
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 &&
media_entity_is_streaming(&sd->entity)) ||
(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, sd_state, fmt);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *src_fmt;
mf = __fimc_lite_subdev_get_try_fmt(sd, sd_state, 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, sd_state,
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;
sink->rect.width = mf->width;
sink->rect.height = mf->height;
sink->rect.left = 0;
sink->rect.top = 0;
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_state *sd_state,
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_state_get_crop(sd_state, 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)/%ux%u, 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_state *sd_state,
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_state_get_crop(sd_state, sel->pad) = sel->r;
} else {
unsigned long flags;
spin_lock_irqsave(&fimc->slock, flags);
f->rect = sel->r;
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)/%ux%u, 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;
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;
int ret;
int irq;
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);
fimc->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(fimc->regs))
return PTR_ERR(fimc->regs);
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
ret = fimc_lite_clk_get(fimc);
if (ret)
return ret;
ret = devm_request_irq(dev, irq, flite_irq_handler,
0, dev_name(dev), fimc);
if (ret) {
dev_err(dev, "Failed to install irq (%d)\n", ret);
goto err_clk_put;
}
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
static void 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");
}
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)
};
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,
};
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,
},
{ },
};
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_DESCRIPTION("Samsung EXYNOS FIMC-LITE (camera host interface) driver");
MODULE_LICENSE("GPL");
