#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/sched.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
CICR0_EOFM | CICR0_FOM)
/*
- * YUV422P picture size should be a multiple of 16, so the heuristic aligns
- * height, width on 4 byte boundaries to reach the 16 multiple for the size.
- */
-#define YUV422P_X_Y_ALIGN 4
-#define YUV422P_SIZE_ALIGN YUV422P_X_Y_ALIGN * YUV422P_X_Y_ALIGN
-
-/*
* Structures
*/
enum pxa_camera_active_dma {
};
struct pxa_camera_dev {
- struct device *dev;
+ struct soc_camera_host soc_host;
/* PXA27x is only supposed to handle one camera on its Quick Capture
* interface. If anyone ever builds hardware to enable more than
* one camera, they will have to modify this driver too */
u32 save_cicr[5];
};
+struct pxa_cam {
+ unsigned long flags;
+};
+
static const char *pxa_cam_driver_description = "PXA_Camera";
static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
{
struct soc_camera_device *icd = vq->priv_data;
- dev_dbg(&icd->dev, "count=%d, size=%d\n", *count, *size);
+ dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size);
- *size = roundup(icd->width * icd->height *
+ *size = roundup(icd->user_width * icd->user_height *
((icd->current_fmt->depth + 7) >> 3), 8);
if (0 == *count)
{
struct soc_camera_device *icd = vq->priv_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
- struct pxa_camera_dev *pcdev = ici->priv;
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
int i;
BUG_ON(in_interrupt());
- dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
+ dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
&buf->vb, buf->vb.baddr, buf->vb.bsize);
/* This waits until this buffer is out of danger, i.e., until it is no
for (i = 0; i < ARRAY_SIZE(buf->dmas); i++) {
if (buf->dmas[i].sg_cpu)
- dma_free_coherent(pcdev->dev, buf->dmas[i].sg_size,
+ dma_free_coherent(ici->v4l2_dev.dev,
+ buf->dmas[i].sg_size,
buf->dmas[i].sg_cpu,
buf->dmas[i].sg_dma);
buf->dmas[i].sg_cpu = NULL;
struct scatterlist **sg_first, int *sg_first_ofs)
{
struct pxa_cam_dma *pxa_dma = &buf->dmas[channel];
+ struct device *dev = pcdev->soc_host.v4l2_dev.dev;
struct scatterlist *sg;
int i, offset, sglen;
int dma_len = 0, xfer_len = 0;
if (pxa_dma->sg_cpu)
- dma_free_coherent(pcdev->dev, pxa_dma->sg_size,
+ dma_free_coherent(dev, pxa_dma->sg_size,
pxa_dma->sg_cpu, pxa_dma->sg_dma);
sglen = calculate_dma_sglen(*sg_first, dma->sglen,
*sg_first_ofs, size);
pxa_dma->sg_size = (sglen + 1) * sizeof(struct pxa_dma_desc);
- pxa_dma->sg_cpu = dma_alloc_coherent(pcdev->dev, pxa_dma->sg_size,
+ pxa_dma->sg_cpu = dma_alloc_coherent(dev, pxa_dma->sg_size,
&pxa_dma->sg_dma, GFP_KERNEL);
if (!pxa_dma->sg_cpu)
return -ENOMEM;
pxa_dma->sglen = sglen;
offset = *sg_first_ofs;
- dev_dbg(pcdev->dev, "DMA: sg_first=%p, sglen=%d, ofs=%d, dma.desc=%x\n",
+ dev_dbg(dev, "DMA: sg_first=%p, sglen=%d, ofs=%d, dma.desc=%x\n",
*sg_first, sglen, *sg_first_ofs, pxa_dma->sg_dma);
pxa_dma->sg_cpu[i].ddadr =
pxa_dma->sg_dma + (i + 1) * sizeof(struct pxa_dma_desc);
- dev_vdbg(pcdev->dev, "DMA: desc.%08x->@phys=0x%08x, len=%d\n",
+ dev_vdbg(dev, "DMA: desc.%08x->@phys=0x%08x, len=%d\n",
pxa_dma->sg_dma + i * sizeof(struct pxa_dma_desc),
sg_dma_address(sg) + offset, xfer_len);
offset = 0;
struct soc_camera_device *icd = vq->priv_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
+ struct device *dev = pcdev->soc_host.v4l2_dev.dev;
struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb);
int ret;
int size_y, size_u = 0, size_v = 0;
- dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
+ dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
vb, vb->baddr, vb->bsize);
/* Added list head initialization on alloc */
buf->inwork = 1;
if (buf->fmt != icd->current_fmt ||
- vb->width != icd->width ||
- vb->height != icd->height ||
+ vb->width != icd->user_width ||
+ vb->height != icd->user_height ||
vb->field != field) {
buf->fmt = icd->current_fmt;
- vb->width = icd->width;
- vb->height = icd->height;
+ vb->width = icd->user_width;
+ vb->height = icd->user_height;
vb->field = field;
vb->state = VIDEOBUF_NEEDS_INIT;
}
ret = pxa_init_dma_channel(pcdev, buf, dma, 0, CIBR0, size_y,
&sg, &next_ofs);
if (ret) {
- dev_err(pcdev->dev,
- "DMA initialization for Y/RGB failed\n");
+ dev_err(dev, "DMA initialization for Y/RGB failed\n");
goto fail;
}
ret = pxa_init_dma_channel(pcdev, buf, dma, 1, CIBR1,
size_u, &sg, &next_ofs);
if (ret) {
- dev_err(pcdev->dev,
- "DMA initialization for U failed\n");
+ dev_err(dev, "DMA initialization for U failed\n");
goto fail_u;
}
ret = pxa_init_dma_channel(pcdev, buf, dma, 2, CIBR2,
size_v, &sg, &next_ofs);
if (ret) {
- dev_err(pcdev->dev,
- "DMA initialization for V failed\n");
+ dev_err(dev, "DMA initialization for V failed\n");
goto fail_v;
}
return 0;
fail_v:
- dma_free_coherent(pcdev->dev, buf->dmas[1].sg_size,
+ dma_free_coherent(dev, buf->dmas[1].sg_size,
buf->dmas[1].sg_cpu, buf->dmas[1].sg_dma);
fail_u:
- dma_free_coherent(pcdev->dev, buf->dmas[0].sg_size,
+ dma_free_coherent(dev, buf->dmas[0].sg_size,
buf->dmas[0].sg_cpu, buf->dmas[0].sg_dma);
fail:
free_buffer(vq, buf);
active = pcdev->active;
for (i = 0; i < pcdev->channels; i++) {
- dev_dbg(pcdev->dev, "%s (channel=%d) ddadr=%08x\n", __func__,
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev,
+ "%s (channel=%d) ddadr=%08x\n", __func__,
i, active->dmas[i].sg_dma);
DDADR(pcdev->dma_chans[i]) = active->dmas[i].sg_dma;
DCSR(pcdev->dma_chans[i]) = DCSR_RUN;
int i;
for (i = 0; i < pcdev->channels; i++) {
- dev_dbg(pcdev->dev, "%s (channel=%d)\n", __func__, i);
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev,
+ "%s (channel=%d)\n", __func__, i);
DCSR(pcdev->dma_chans[i]) = 0;
}
}
-static void pxa_dma_update_sg_tail(struct pxa_camera_dev *pcdev,
- struct pxa_buffer *buf)
-{
- int i;
-
- for (i = 0; i < pcdev->channels; i++)
- pcdev->sg_tail[i] = buf->dmas[i].sg_cpu + buf->dmas[i].sglen;
-}
-
static void pxa_dma_add_tail_buf(struct pxa_camera_dev *pcdev,
struct pxa_buffer *buf)
{
buf_last_desc = buf->dmas[i].sg_cpu + buf->dmas[i].sglen;
buf_last_desc->ddadr = DDADR_STOP;
- if (!pcdev->sg_tail[i])
- continue;
- pcdev->sg_tail[i]->ddadr = buf->dmas[i].sg_dma;
- }
+ if (pcdev->sg_tail[i])
+ /* Link the new buffer to the old tail */
+ pcdev->sg_tail[i]->ddadr = buf->dmas[i].sg_dma;
- pxa_dma_update_sg_tail(pcdev, buf);
+ /* Update the channel tail */
+ pcdev->sg_tail[i] = buf_last_desc;
+ }
}
/**
{
unsigned long cicr0, cifr;
- dev_dbg(pcdev->dev, "%s\n", __func__);
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s\n", __func__);
/* Reset the FIFOs */
cifr = __raw_readl(pcdev->base + CIFR) | CIFR_RESET_F;
__raw_writel(cifr, pcdev->base + CIFR);
__raw_writel(cicr0, pcdev->base + CICR0);
pcdev->active = NULL;
- dev_dbg(pcdev->dev, "%s\n", __func__);
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s\n", __func__);
}
+/* Called under spinlock_irqsave(&pcdev->lock, ...) */
static void pxa_videobuf_queue(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb);
- unsigned long flags;
-
- dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d active=%p\n", __func__,
- vb, vb->baddr, vb->bsize, pcdev->active);
- spin_lock_irqsave(&pcdev->lock, flags);
+ dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %d active=%p\n",
+ __func__, vb, vb->baddr, vb->bsize, pcdev->active);
list_add_tail(&vb->queue, &pcdev->capture);
if (!pcdev->active)
pxa_camera_start_capture(pcdev);
-
- spin_unlock_irqrestore(&pcdev->lock, flags);
}
static void pxa_videobuf_release(struct videobuf_queue *vq,
struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb);
#ifdef DEBUG
struct soc_camera_device *icd = vq->priv_data;
+ struct device *dev = icd->dev.parent;
- dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
+ dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
vb, vb->baddr, vb->bsize);
switch (vb->state) {
case VIDEOBUF_ACTIVE:
- dev_dbg(&icd->dev, "%s (active)\n", __func__);
+ dev_dbg(dev, "%s (active)\n", __func__);
break;
case VIDEOBUF_QUEUED:
- dev_dbg(&icd->dev, "%s (queued)\n", __func__);
+ dev_dbg(dev, "%s (queued)\n", __func__);
break;
case VIDEOBUF_PREPARED:
- dev_dbg(&icd->dev, "%s (prepared)\n", __func__);
+ dev_dbg(dev, "%s (prepared)\n", __func__);
break;
default:
- dev_dbg(&icd->dev, "%s (unknown)\n", __func__);
+ dev_dbg(dev, "%s (unknown)\n", __func__);
break;
}
#endif
do_gettimeofday(&vb->ts);
vb->field_count++;
wake_up(&vb->done);
- dev_dbg(pcdev->dev, "%s dequeud buffer (vb=0x%p)\n", __func__, vb);
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s dequeud buffer (vb=0x%p)\n",
+ __func__, vb);
if (list_empty(&pcdev->capture)) {
pxa_camera_stop_capture(pcdev);
for (i = 0; i < pcdev->channels; i++)
if (DDADR(pcdev->dma_chans[i]) != DDADR_STOP)
is_dma_stopped = 0;
- dev_dbg(pcdev->dev, "%s : top queued buffer=%p, dma_stopped=%d\n",
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev,
+ "%s : top queued buffer=%p, dma_stopped=%d\n",
__func__, pcdev->active, is_dma_stopped);
if (pcdev->active && is_dma_stopped)
pxa_camera_start_capture(pcdev);
static void pxa_camera_dma_irq(int channel, struct pxa_camera_dev *pcdev,
enum pxa_camera_active_dma act_dma)
{
+ struct device *dev = pcdev->soc_host.v4l2_dev.dev;
struct pxa_buffer *buf;
unsigned long flags;
u32 status, camera_status, overrun;
overrun |= CISR_IFO_1 | CISR_IFO_2;
if (status & DCSR_BUSERR) {
- dev_err(pcdev->dev, "DMA Bus Error IRQ!\n");
+ dev_err(dev, "DMA Bus Error IRQ!\n");
goto out;
}
if (!(status & (DCSR_ENDINTR | DCSR_STARTINTR))) {
- dev_err(pcdev->dev, "Unknown DMA IRQ source, "
- "status: 0x%08x\n", status);
+ dev_err(dev, "Unknown DMA IRQ source, status: 0x%08x\n",
+ status);
goto out;
}
buf = container_of(vb, struct pxa_buffer, vb);
WARN_ON(buf->inwork || list_empty(&vb->queue));
- dev_dbg(pcdev->dev, "%s channel=%d %s%s(vb=0x%p) dma.desc=%x\n",
+ dev_dbg(dev, "%s channel=%d %s%s(vb=0x%p) dma.desc=%x\n",
__func__, channel, status & DCSR_STARTINTR ? "SOF " : "",
status & DCSR_ENDINTR ? "EOF " : "", vb, DDADR(channel));
*/
if (camera_status & overrun &&
!list_is_last(pcdev->capture.next, &pcdev->capture)) {
- dev_dbg(pcdev->dev, "FIFO overrun! CISR: %x\n",
+ dev_dbg(dev, "FIFO overrun! CISR: %x\n",
camera_status);
pxa_camera_stop_capture(pcdev);
pxa_camera_start_capture(pcdev);
sizeof(struct pxa_buffer), icd);
}
-static u32 mclk_get_divisor(struct pxa_camera_dev *pcdev)
+static u32 mclk_get_divisor(struct platform_device *pdev,
+ struct pxa_camera_dev *pcdev)
{
unsigned long mclk = pcdev->mclk;
+ struct device *dev = &pdev->dev;
u32 div;
unsigned long lcdclk;
/* mclk <= ciclk / 4 (27.4.2) */
if (mclk > lcdclk / 4) {
mclk = lcdclk / 4;
- dev_warn(pcdev->dev, "Limiting master clock to %lu\n", mclk);
+ dev_warn(dev, "Limiting master clock to %lu\n", mclk);
}
/* We verify mclk != 0, so if anyone breaks it, here comes their Oops */
if (pcdev->platform_flags & PXA_CAMERA_MCLK_EN)
pcdev->mclk = lcdclk / (2 * (div + 1));
- dev_dbg(pcdev->dev, "LCD clock %luHz, target freq %luHz, "
- "divisor %u\n", lcdclk, mclk, div);
+ dev_dbg(dev, "LCD clock %luHz, target freq %luHz, divisor %u\n",
+ lcdclk, mclk, div);
return div;
}
static void pxa_camera_activate(struct pxa_camera_dev *pcdev)
{
struct pxacamera_platform_data *pdata = pcdev->pdata;
+ struct device *dev = pcdev->soc_host.v4l2_dev.dev;
u32 cicr4 = 0;
- dev_dbg(pcdev->dev, "Registered platform device at %p data %p\n",
+ dev_dbg(dev, "Registered platform device at %p data %p\n",
pcdev, pdata);
if (pdata && pdata->init) {
- dev_dbg(pcdev->dev, "%s: Init gpios\n", __func__);
- pdata->init(pcdev->dev);
+ dev_dbg(dev, "%s: Init gpios\n", __func__);
+ pdata->init(dev);
}
/* disable all interrupts */
struct videobuf_buffer *vb;
status = __raw_readl(pcdev->base + CISR);
- dev_dbg(pcdev->dev, "Camera interrupt status 0x%lx\n", status);
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev,
+ "Camera interrupt status 0x%lx\n", status);
if (!status)
return IRQ_NONE;
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
- int ret;
- if (pcdev->icd) {
- ret = -EBUSY;
- goto ebusy;
- }
-
- dev_info(&icd->dev, "PXA Camera driver attached to camera %d\n",
- icd->devnum);
+ if (pcdev->icd)
+ return -EBUSY;
pxa_camera_activate(pcdev);
- ret = icd->ops->init(icd);
- if (!ret)
- pcdev->icd = icd;
+ pcdev->icd = icd;
-ebusy:
- return ret;
+ dev_info(icd->dev.parent, "PXA Camera driver attached to camera %d\n",
+ icd->devnum);
+
+ return 0;
}
/* Called with .video_lock held */
BUG_ON(icd != pcdev->icd);
- dev_info(&icd->dev, "PXA Camera driver detached from camera %d\n",
+ dev_info(icd->dev.parent, "PXA Camera driver detached from camera %d\n",
icd->devnum);
/* disable capture, disable interrupts */
DCSR(pcdev->dma_chans[1]) = 0;
DCSR(pcdev->dma_chans[2]) = 0;
- icd->ops->release(icd);
-
pxa_camera_deactivate(pcdev);
pcdev->icd = NULL;
return 0;
}
-static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
+static void pxa_camera_setup_cicr(struct soc_camera_device *icd,
+ unsigned long flags, __u32 pixfmt)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
- unsigned long dw, bpp, bus_flags, camera_flags, common_flags;
+ unsigned long dw, bpp;
u32 cicr0, cicr1, cicr2, cicr3, cicr4 = 0;
- int ret = test_platform_param(pcdev, icd->buswidth, &bus_flags);
-
- if (ret < 0)
- return ret;
-
- camera_flags = icd->ops->query_bus_param(icd);
-
- common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
- if (!common_flags)
- return -EINVAL;
-
- pcdev->channels = 1;
-
- /* Make choises, based on platform preferences */
- if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
- (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
- if (pcdev->platform_flags & PXA_CAMERA_HSP)
- common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
- }
-
- if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
- (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
- if (pcdev->platform_flags & PXA_CAMERA_VSP)
- common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
- }
-
- if ((common_flags & SOCAM_PCLK_SAMPLE_RISING) &&
- (common_flags & SOCAM_PCLK_SAMPLE_FALLING)) {
- if (pcdev->platform_flags & PXA_CAMERA_PCP)
- common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
- else
- common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
- }
-
- ret = icd->ops->set_bus_param(icd, common_flags);
- if (ret < 0)
- return ret;
/* Datawidth is now guaranteed to be equal to one of the three values.
* We fix bit-per-pixel equal to data-width... */
- switch (common_flags & SOCAM_DATAWIDTH_MASK) {
+ switch (flags & SOCAM_DATAWIDTH_MASK) {
case SOCAM_DATAWIDTH_10:
dw = 4;
bpp = 0x40;
cicr4 |= CICR4_PCLK_EN;
if (pcdev->platform_flags & PXA_CAMERA_MCLK_EN)
cicr4 |= CICR4_MCLK_EN;
- if (common_flags & SOCAM_PCLK_SAMPLE_FALLING)
+ if (flags & SOCAM_PCLK_SAMPLE_FALLING)
cicr4 |= CICR4_PCP;
- if (common_flags & SOCAM_HSYNC_ACTIVE_LOW)
+ if (flags & SOCAM_HSYNC_ACTIVE_LOW)
cicr4 |= CICR4_HSP;
- if (common_flags & SOCAM_VSYNC_ACTIVE_LOW)
+ if (flags & SOCAM_VSYNC_ACTIVE_LOW)
cicr4 |= CICR4_VSP;
cicr0 = __raw_readl(pcdev->base + CICR0);
if (cicr0 & CICR0_ENB)
__raw_writel(cicr0 & ~CICR0_ENB, pcdev->base + CICR0);
- cicr1 = CICR1_PPL_VAL(icd->width - 1) | bpp | dw;
+ cicr1 = CICR1_PPL_VAL(icd->user_width - 1) | bpp | dw;
switch (pixfmt) {
case V4L2_PIX_FMT_YUV422P:
}
cicr2 = 0;
- cicr3 = CICR3_LPF_VAL(icd->height - 1) |
+ cicr3 = CICR3_LPF_VAL(icd->user_height - 1) |
CICR3_BFW_VAL(min((unsigned short)255, icd->y_skip_top));
cicr4 |= pcdev->mclk_divisor;
CICR0_SIM_MP : (CICR0_SL_CAP_EN | CICR0_SIM_SP));
cicr0 |= CICR0_DMAEN | CICR0_IRQ_MASK;
__raw_writel(cicr0, pcdev->base + CICR0);
+}
+
+static int pxa_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct pxa_camera_dev *pcdev = ici->priv;
+ unsigned long bus_flags, camera_flags, common_flags;
+ int ret = test_platform_param(pcdev, icd->buswidth, &bus_flags);
+ struct pxa_cam *cam = icd->host_priv;
+
+ if (ret < 0)
+ return ret;
+
+ camera_flags = icd->ops->query_bus_param(icd);
+
+ common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
+ if (!common_flags)
+ return -EINVAL;
+
+ pcdev->channels = 1;
+
+ /* Make choises, based on platform preferences */
+ if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
+ (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
+ if (pcdev->platform_flags & PXA_CAMERA_HSP)
+ common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
+ else
+ common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
+ }
+
+ if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
+ (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
+ if (pcdev->platform_flags & PXA_CAMERA_VSP)
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
+ else
+ common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
+ }
+
+ if ((common_flags & SOCAM_PCLK_SAMPLE_RISING) &&
+ (common_flags & SOCAM_PCLK_SAMPLE_FALLING)) {
+ if (pcdev->platform_flags & PXA_CAMERA_PCP)
+ common_flags &= ~SOCAM_PCLK_SAMPLE_RISING;
+ else
+ common_flags &= ~SOCAM_PCLK_SAMPLE_FALLING;
+ }
+
+ cam->flags = common_flags;
+
+ ret = icd->ops->set_bus_param(icd, common_flags);
+ if (ret < 0)
+ return ret;
+
+ pxa_camera_setup_cicr(icd, common_flags, pixfmt);
return 0;
}
static int pxa_camera_get_formats(struct soc_camera_device *icd, int idx,
struct soc_camera_format_xlate *xlate)
{
- struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct device *dev = icd->dev.parent;
int formats = 0, buswidth, ret;
+ struct pxa_cam *cam;
buswidth = required_buswidth(icd->formats + idx);
if (ret < 0)
return 0;
+ if (!icd->host_priv) {
+ cam = kzalloc(sizeof(*cam), GFP_KERNEL);
+ if (!cam)
+ return -ENOMEM;
+
+ icd->host_priv = cam;
+ } else {
+ cam = icd->host_priv;
+ }
+
switch (icd->formats[idx].fourcc) {
case V4L2_PIX_FMT_UYVY:
formats++;
xlate->cam_fmt = icd->formats + idx;
xlate->buswidth = buswidth;
xlate++;
- dev_dbg(&ici->dev, "Providing format %s using %s\n",
+ dev_dbg(dev, "Providing format %s using %s\n",
pxa_camera_formats[0].name,
icd->formats[idx].name);
}
xlate->cam_fmt = icd->formats + idx;
xlate->buswidth = buswidth;
xlate++;
- dev_dbg(&ici->dev, "Providing format %s packed\n",
+ dev_dbg(dev, "Providing format %s packed\n",
icd->formats[idx].name);
}
break;
xlate->cam_fmt = icd->formats + idx;
xlate->buswidth = icd->formats[idx].depth;
xlate++;
- dev_dbg(&ici->dev,
+ dev_dbg(dev,
"Providing format %s in pass-through mode\n",
icd->formats[idx].name);
}
return formats;
}
+static void pxa_camera_put_formats(struct soc_camera_device *icd)
+{
+ kfree(icd->host_priv);
+ icd->host_priv = NULL;
+}
+
+static int pxa_camera_check_frame(struct v4l2_pix_format *pix)
+{
+ /* limit to pxa hardware capabilities */
+ return pix->height < 32 || pix->height > 2048 || pix->width < 48 ||
+ pix->width > 2048 || (pix->width & 0x01);
+}
+
static int pxa_camera_set_crop(struct soc_camera_device *icd,
- struct v4l2_rect *rect)
+ struct v4l2_crop *a)
{
+ struct v4l2_rect *rect = &a->c;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
+ struct device *dev = icd->dev.parent;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_sense sense = {
.master_clock = pcdev->mclk,
.pixel_clock_max = pcdev->ciclk / 4,
};
+ struct v4l2_format f;
+ struct v4l2_pix_format *pix = &f.fmt.pix, pix_tmp;
+ struct pxa_cam *cam = icd->host_priv;
int ret;
/* If PCLK is used to latch data from the sensor, check sense */
if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
icd->sense = &sense;
- ret = icd->ops->set_crop(icd, rect);
+ ret = v4l2_subdev_call(sd, video, s_crop, a);
icd->sense = NULL;
if (ret < 0) {
- dev_warn(&ici->dev, "Failed to crop to %ux%u@%u:%u\n",
+ dev_warn(dev, "Failed to crop to %ux%u@%u:%u\n",
rect->width, rect->height, rect->left, rect->top);
- } else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
+ return ret;
+ }
+
+ f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+ ret = v4l2_subdev_call(sd, video, g_fmt, &f);
+ if (ret < 0)
+ return ret;
+
+ pix_tmp = *pix;
+ if (pxa_camera_check_frame(pix)) {
+ /*
+ * Camera cropping produced a frame beyond our capabilities.
+ * FIXME: just extract a subframe, that we can process.
+ */
+ v4l_bound_align_image(&pix->width, 48, 2048, 1,
+ &pix->height, 32, 2048, 0,
+ icd->current_fmt->fourcc == V4L2_PIX_FMT_YUV422P ?
+ 4 : 0);
+ ret = v4l2_subdev_call(sd, video, s_fmt, &f);
+ if (ret < 0)
+ return ret;
+
+ if (pxa_camera_check_frame(pix)) {
+ dev_warn(icd->dev.parent,
+ "Inconsistent state. Use S_FMT to repair\n");
+ return -EINVAL;
+ }
+ }
+
+ if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
if (sense.pixel_clock > sense.pixel_clock_max) {
- dev_err(&ici->dev,
+ dev_err(dev,
"pixel clock %lu set by the camera too high!",
sense.pixel_clock);
return -EIO;
recalculate_fifo_timeout(pcdev, sense.pixel_clock);
}
+ icd->user_width = pix->width;
+ icd->user_height = pix->height;
+
+ pxa_camera_setup_cicr(icd, cam->flags, icd->current_fmt->fourcc);
+
return ret;
}
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
+ struct device *dev = icd->dev.parent;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_data_format *cam_fmt = NULL;
const struct soc_camera_format_xlate *xlate = NULL;
struct soc_camera_sense sense = {
xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
if (!xlate) {
- dev_warn(&ici->dev, "Format %x not found\n", pix->pixelformat);
+ dev_warn(dev, "Format %x not found\n", pix->pixelformat);
return -EINVAL;
}
icd->sense = &sense;
cam_f.fmt.pix.pixelformat = cam_fmt->fourcc;
- ret = icd->ops->set_fmt(icd, &cam_f);
+ ret = v4l2_subdev_call(sd, video, s_fmt, &cam_f);
+ cam_f.fmt.pix.pixelformat = pix->pixelformat;
+ *pix = cam_f.fmt.pix;
icd->sense = NULL;
if (ret < 0) {
- dev_warn(&ici->dev, "Failed to configure for format %x\n",
+ dev_warn(dev, "Failed to configure for format %x\n",
pix->pixelformat);
+ } else if (pxa_camera_check_frame(pix)) {
+ dev_warn(dev,
+ "Camera driver produced an unsupported frame %dx%d\n",
+ pix->width, pix->height);
+ ret = -EINVAL;
} else if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {
if (sense.pixel_clock > sense.pixel_clock_max) {
- dev_err(&ici->dev,
+ dev_err(dev,
"pixel clock %lu set by the camera too high!",
sense.pixel_clock);
return -EIO;
struct v4l2_format *f)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
__u32 pixfmt = pix->pixelformat;
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
- dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
+ dev_warn(ici->v4l2_dev.dev, "Format %x not found\n", pixfmt);
return -EINVAL;
}
- /* limit to pxa hardware capabilities */
- if (pix->height < 32)
- pix->height = 32;
- if (pix->height > 2048)
- pix->height = 2048;
- if (pix->width < 48)
- pix->width = 48;
- if (pix->width > 2048)
- pix->width = 2048;
- pix->width &= ~0x01;
-
/*
- * YUV422P planar format requires images size to be a 16 bytes
- * multiple. If not, zeros will be inserted between Y and U planes, and
- * U and V planes, and YUV422P standard would be violated.
+ * Limit to pxa hardware capabilities. YUV422P planar format requires
+ * images size to be a multiple of 16 bytes. If not, zeros will be
+ * inserted between Y and U planes, and U and V planes, which violates
+ * the YUV422P standard.
*/
- if (xlate->host_fmt->fourcc == V4L2_PIX_FMT_YUV422P) {
- if (!IS_ALIGNED(pix->width * pix->height, YUV422P_SIZE_ALIGN))
- pix->height = ALIGN(pix->height, YUV422P_X_Y_ALIGN);
- if (!IS_ALIGNED(pix->width * pix->height, YUV422P_SIZE_ALIGN))
- pix->width = ALIGN(pix->width, YUV422P_X_Y_ALIGN);
- }
+ v4l_bound_align_image(&pix->width, 48, 2048, 1,
+ &pix->height, 32, 2048, 0,
+ pixfmt == V4L2_PIX_FMT_YUV422P ? 4 : 0);
pix->bytesperline = pix->width *
DIV_ROUND_UP(xlate->host_fmt->depth, 8);
/* camera has to see its format, but the user the original one */
pix->pixelformat = xlate->cam_fmt->fourcc;
/* limit to sensor capabilities */
- ret = icd->ops->try_fmt(icd, f);
- pix->pixelformat = xlate->host_fmt->fourcc;
+ ret = v4l2_subdev_call(sd, video, try_fmt, f);
+ pix->pixelformat = pixfmt;
field = pix->field;
if (field == V4L2_FIELD_ANY) {
pix->field = V4L2_FIELD_NONE;
} else if (field != V4L2_FIELD_NONE) {
- dev_err(&icd->dev, "Field type %d unsupported.\n", field);
+ dev_err(icd->dev.parent, "Field type %d unsupported.\n", field);
return -EINVAL;
}
.resume = pxa_camera_resume,
.set_crop = pxa_camera_set_crop,
.get_formats = pxa_camera_get_formats,
+ .put_formats = pxa_camera_put_formats,
.set_fmt = pxa_camera_set_fmt,
.try_fmt = pxa_camera_try_fmt,
.init_videobuf = pxa_camera_init_videobuf,
.set_bus_param = pxa_camera_set_bus_param,
};
-/* Should be allocated dynamically too, but we have only one. */
-static struct soc_camera_host pxa_soc_camera_host = {
- .drv_name = PXA_CAM_DRV_NAME,
- .ops = &pxa_soc_camera_host_ops,
-};
-
-static int pxa_camera_probe(struct platform_device *pdev)
+static int __devinit pxa_camera_probe(struct platform_device *pdev)
{
struct pxa_camera_dev *pcdev;
struct resource *res;
goto exit_kfree;
}
- dev_set_drvdata(&pdev->dev, pcdev);
pcdev->res = res;
pcdev->pdata = pdev->dev.platform_data;
pcdev->mclk = 20000000;
}
- pcdev->dev = &pdev->dev;
- pcdev->mclk_divisor = mclk_get_divisor(pcdev);
+ pcdev->mclk_divisor = mclk_get_divisor(pdev, pcdev);
INIT_LIST_HEAD(&pcdev->capture);
spin_lock_init(&pcdev->lock);
/*
* Request the regions.
*/
- if (!request_mem_region(res->start, res->end - res->start + 1,
+ if (!request_mem_region(res->start, resource_size(res),
PXA_CAM_DRV_NAME)) {
err = -EBUSY;
goto exit_clk;
}
- base = ioremap(res->start, res->end - res->start + 1);
+ base = ioremap(res->start, resource_size(res));
if (!base) {
err = -ENOMEM;
goto exit_release;
err = pxa_request_dma("CI_Y", DMA_PRIO_HIGH,
pxa_camera_dma_irq_y, pcdev);
if (err < 0) {
- dev_err(pcdev->dev, "Can't request DMA for Y\n");
+ dev_err(&pdev->dev, "Can't request DMA for Y\n");
goto exit_iounmap;
}
pcdev->dma_chans[0] = err;
- dev_dbg(pcdev->dev, "got DMA channel %d\n", pcdev->dma_chans[0]);
+ dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chans[0]);
err = pxa_request_dma("CI_U", DMA_PRIO_HIGH,
pxa_camera_dma_irq_u, pcdev);
if (err < 0) {
- dev_err(pcdev->dev, "Can't request DMA for U\n");
+ dev_err(&pdev->dev, "Can't request DMA for U\n");
goto exit_free_dma_y;
}
pcdev->dma_chans[1] = err;
- dev_dbg(pcdev->dev, "got DMA channel (U) %d\n", pcdev->dma_chans[1]);
+ dev_dbg(&pdev->dev, "got DMA channel (U) %d\n", pcdev->dma_chans[1]);
err = pxa_request_dma("CI_V", DMA_PRIO_HIGH,
pxa_camera_dma_irq_v, pcdev);
if (err < 0) {
- dev_err(pcdev->dev, "Can't request DMA for V\n");
+ dev_err(&pdev->dev, "Can't request DMA for V\n");
goto exit_free_dma_u;
}
pcdev->dma_chans[2] = err;
- dev_dbg(pcdev->dev, "got DMA channel (V) %d\n", pcdev->dma_chans[2]);
+ dev_dbg(&pdev->dev, "got DMA channel (V) %d\n", pcdev->dma_chans[2]);
DRCMR(68) = pcdev->dma_chans[0] | DRCMR_MAPVLD;
DRCMR(69) = pcdev->dma_chans[1] | DRCMR_MAPVLD;
err = request_irq(pcdev->irq, pxa_camera_irq, 0, PXA_CAM_DRV_NAME,
pcdev);
if (err) {
- dev_err(pcdev->dev, "Camera interrupt register failed \n");
+ dev_err(&pdev->dev, "Camera interrupt register failed \n");
goto exit_free_dma;
}
- pxa_soc_camera_host.priv = pcdev;
- pxa_soc_camera_host.dev.parent = &pdev->dev;
- pxa_soc_camera_host.nr = pdev->id;
- err = soc_camera_host_register(&pxa_soc_camera_host);
+ pcdev->soc_host.drv_name = PXA_CAM_DRV_NAME;
+ pcdev->soc_host.ops = &pxa_soc_camera_host_ops;
+ pcdev->soc_host.priv = pcdev;
+ pcdev->soc_host.v4l2_dev.dev = &pdev->dev;
+ pcdev->soc_host.nr = pdev->id;
+
+ err = soc_camera_host_register(&pcdev->soc_host);
if (err)
goto exit_free_irq;
exit_iounmap:
iounmap(base);
exit_release:
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
exit_clk:
clk_put(pcdev->clk);
exit_kfree:
static int __devexit pxa_camera_remove(struct platform_device *pdev)
{
- struct pxa_camera_dev *pcdev = platform_get_drvdata(pdev);
+ struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
+ struct pxa_camera_dev *pcdev = container_of(soc_host,
+ struct pxa_camera_dev, soc_host);
struct resource *res;
clk_put(pcdev->clk);
pxa_free_dma(pcdev->dma_chans[2]);
free_irq(pcdev->irq, pcdev);
- soc_camera_host_unregister(&pxa_soc_camera_host);
+ soc_camera_host_unregister(soc_host);
iounmap(pcdev->base);
res = pcdev->res;
- release_mem_region(res->start, res->end - res->start + 1);
+ release_mem_region(res->start, resource_size(res));
kfree(pcdev);
.name = PXA_CAM_DRV_NAME,
},
.probe = pxa_camera_probe,
- .remove = __exit_p(pxa_camera_remove),
+ .remove = __devexit_p(pxa_camera_remove),
};
-static int __devinit pxa_camera_init(void)
+static int __init pxa_camera_init(void)
{
return platform_driver_register(&pxa_camera_driver);
}
MODULE_DESCRIPTION("PXA27x SoC Camera Host driver");
MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" PXA_CAM_DRV_NAME);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff