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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 17:31:16 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:43:09 -0300
commit2c3fb08b3f74b8792004095a1f6881a3296ff643 (patch)
tree19be9d09c4aa66d4363ee9d38a43721f5d6b144f /drivers/media/video/fsl-viu.c
parent2a2d1cf46500ab7599d0b45ee837f3936763ccac (diff)
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[media] rename drivers/media/video as .../platform
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/fsl-viu.c')
-rw-r--r--drivers/media/video/fsl-viu.c1690
1 files changed, 0 insertions, 1690 deletions
diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
deleted file mode 100644
index 20f981008faf..000000000000
--- a/drivers/media/video/fsl-viu.c
+++ /dev/null
@@ -1,1690 +0,0 @@
-/*
- * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * Freescale VIU video driver
- *
- * Authors: Hongjun Chen <hong-jun.chen@freescale.com>
- * Porting to 2.6.35 by DENX Software Engineering,
- * Anatolij Gustschin <agust@denx.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/of_platform.h>
-#include <linux/slab.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf-dma-contig.h>
-
-#define DRV_NAME "fsl_viu"
-#define VIU_VERSION "0.5.1"
-
-#define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
-
-#define VIU_VID_MEM_LIMIT 4 /* Video memory limit, in Mb */
-
-/* I2C address of video decoder chip is 0x4A */
-#define VIU_VIDEO_DECODER_ADDR 0x25
-
-/* supported controls */
-static struct v4l2_queryctrl viu_qctrl[] = {
- {
- .id = V4L2_CID_BRIGHTNESS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Brightness",
- .minimum = 0,
- .maximum = 255,
- .step = 1,
- .default_value = 127,
- .flags = 0,
- }, {
- .id = V4L2_CID_CONTRAST,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Contrast",
- .minimum = 0,
- .maximum = 255,
- .step = 0x1,
- .default_value = 0x10,
- .flags = 0,
- }, {
- .id = V4L2_CID_SATURATION,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Saturation",
- .minimum = 0,
- .maximum = 255,
- .step = 0x1,
- .default_value = 127,
- .flags = 0,
- }, {
- .id = V4L2_CID_HUE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Hue",
- .minimum = -128,
- .maximum = 127,
- .step = 0x1,
- .default_value = 0,
- .flags = 0,
- }
-};
-
-static int qctl_regs[ARRAY_SIZE(viu_qctrl)];
-
-static int info_level;
-
-#define dprintk(level, fmt, arg...) \
- do { \
- if (level <= info_level) \
- printk(KERN_DEBUG "viu: " fmt , ## arg); \
- } while (0)
-
-/*
- * Basic structures
- */
-struct viu_fmt {
- char name[32];
- u32 fourcc; /* v4l2 format id */
- u32 pixelformat;
- int depth;
-};
-
-static struct viu_fmt formats[] = {
- {
- .name = "RGB-16 (5/B-6/G-5/R)",
- .fourcc = V4L2_PIX_FMT_RGB565,
- .pixelformat = V4L2_PIX_FMT_RGB565,
- .depth = 16,
- }, {
- .name = "RGB-32 (A-R-G-B)",
- .fourcc = V4L2_PIX_FMT_RGB32,
- .pixelformat = V4L2_PIX_FMT_RGB32,
- .depth = 32,
- }
-};
-
-struct viu_dev;
-struct viu_buf;
-
-/* buffer for one video frame */
-struct viu_buf {
- /* common v4l buffer stuff -- must be first */
- struct videobuf_buffer vb;
- struct viu_fmt *fmt;
-};
-
-struct viu_dmaqueue {
- struct viu_dev *dev;
- struct list_head active;
- struct list_head queued;
- struct timer_list timeout;
-};
-
-struct viu_status {
- u32 field_irq;
- u32 vsync_irq;
- u32 hsync_irq;
- u32 vstart_irq;
- u32 dma_end_irq;
- u32 error_irq;
-};
-
-struct viu_reg {
- u32 status_cfg;
- u32 luminance;
- u32 chroma_r;
- u32 chroma_g;
- u32 chroma_b;
- u32 field_base_addr;
- u32 dma_inc;
- u32 picture_count;
- u32 req_alarm;
- u32 alpha;
-} __attribute__ ((packed));
-
-struct viu_dev {
- struct v4l2_device v4l2_dev;
- struct mutex lock;
- spinlock_t slock;
- int users;
-
- struct device *dev;
- /* various device info */
- struct video_device *vdev;
- struct viu_dmaqueue vidq;
- enum v4l2_field capfield;
- int field;
- int first;
- int dma_done;
-
- /* Hardware register area */
- struct viu_reg *vr;
-
- /* Interrupt vector */
- int irq;
- struct viu_status irqs;
-
- /* video overlay */
- struct v4l2_framebuffer ovbuf;
- struct viu_fmt *ovfmt;
- unsigned int ovenable;
- enum v4l2_field ovfield;
-
- /* crop */
- struct v4l2_rect crop_current;
-
- /* clock pointer */
- struct clk *clk;
-
- /* decoder */
- struct v4l2_subdev *decoder;
-
- v4l2_std_id std;
-};
-
-struct viu_fh {
- struct viu_dev *dev;
-
- /* video capture */
- struct videobuf_queue vb_vidq;
- spinlock_t vbq_lock; /* spinlock for the videobuf queue */
-
- /* video overlay */
- struct v4l2_window win;
- struct v4l2_clip clips[1];
-
- /* video capture */
- struct viu_fmt *fmt;
- int width, height, sizeimage;
- enum v4l2_buf_type type;
-};
-
-static struct viu_reg reg_val;
-
-/*
- * Macro definitions of VIU registers
- */
-
-/* STATUS_CONFIG register */
-enum status_config {
- SOFT_RST = 1 << 0,
-
- ERR_MASK = 0x0f << 4, /* Error code mask */
- ERR_NO = 0x00, /* No error */
- ERR_DMA_V = 0x01 << 4, /* DMA in vertical active */
- ERR_DMA_VB = 0x02 << 4, /* DMA in vertical blanking */
- ERR_LINE_TOO_LONG = 0x04 << 4, /* Line too long */
- ERR_TOO_MANG_LINES = 0x05 << 4, /* Too many lines in field */
- ERR_LINE_TOO_SHORT = 0x06 << 4, /* Line too short */
- ERR_NOT_ENOUGH_LINE = 0x07 << 4, /* Not enough lines in field */
- ERR_FIFO_OVERFLOW = 0x08 << 4, /* FIFO overflow */
- ERR_FIFO_UNDERFLOW = 0x09 << 4, /* FIFO underflow */
- ERR_1bit_ECC = 0x0a << 4, /* One bit ECC error */
- ERR_MORE_ECC = 0x0b << 4, /* Two/more bits ECC error */
-
- INT_FIELD_EN = 0x01 << 8, /* Enable field interrupt */
- INT_VSYNC_EN = 0x01 << 9, /* Enable vsync interrupt */
- INT_HSYNC_EN = 0x01 << 10, /* Enable hsync interrupt */
- INT_VSTART_EN = 0x01 << 11, /* Enable vstart interrupt */
- INT_DMA_END_EN = 0x01 << 12, /* Enable DMA end interrupt */
- INT_ERROR_EN = 0x01 << 13, /* Enable error interrupt */
- INT_ECC_EN = 0x01 << 14, /* Enable ECC interrupt */
-
- INT_FIELD_STATUS = 0x01 << 16, /* field interrupt status */
- INT_VSYNC_STATUS = 0x01 << 17, /* vsync interrupt status */
- INT_HSYNC_STATUS = 0x01 << 18, /* hsync interrupt status */
- INT_VSTART_STATUS = 0x01 << 19, /* vstart interrupt status */
- INT_DMA_END_STATUS = 0x01 << 20, /* DMA end interrupt status */
- INT_ERROR_STATUS = 0x01 << 21, /* error interrupt status */
-
- DMA_ACT = 0x01 << 27, /* Enable DMA transfer */
- FIELD_NO = 0x01 << 28, /* Field number */
- DITHER_ON = 0x01 << 29, /* Dithering is on */
- ROUND_ON = 0x01 << 30, /* Round is on */
- MODE_32BIT = 0x01 << 31, /* Data in RGBa888,
- * 0 in RGB565
- */
-};
-
-#define norm_maxw() 720
-#define norm_maxh() 576
-
-#define INT_ALL_STATUS (INT_FIELD_STATUS | INT_VSYNC_STATUS | \
- INT_HSYNC_STATUS | INT_VSTART_STATUS | \
- INT_DMA_END_STATUS | INT_ERROR_STATUS)
-
-#define NUM_FORMATS ARRAY_SIZE(formats)
-
-static irqreturn_t viu_intr(int irq, void *dev_id);
-
-struct viu_fmt *format_by_fourcc(int fourcc)
-{
- int i;
-
- for (i = 0; i < NUM_FORMATS; i++) {
- if (formats[i].pixelformat == fourcc)
- return formats + i;
- }
-
- dprintk(0, "unknown pixelformat:'%4.4s'\n", (char *)&fourcc);
- return NULL;
-}
-
-void viu_start_dma(struct viu_dev *dev)
-{
- struct viu_reg *vr = dev->vr;
-
- dev->field = 0;
-
- /* Enable DMA operation */
- out_be32(&vr->status_cfg, SOFT_RST);
- out_be32(&vr->status_cfg, INT_FIELD_EN);
-}
-
-void viu_stop_dma(struct viu_dev *dev)
-{
- struct viu_reg *vr = dev->vr;
- int cnt = 100;
- u32 status_cfg;
-
- out_be32(&vr->status_cfg, 0);
-
- /* Clear pending interrupts */
- status_cfg = in_be32(&vr->status_cfg);
- if (status_cfg & 0x3f0000)
- out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
-
- if (status_cfg & DMA_ACT) {
- do {
- status_cfg = in_be32(&vr->status_cfg);
- if (status_cfg & INT_DMA_END_STATUS)
- break;
- } while (cnt--);
-
- if (cnt < 0) {
- /* timed out, issue soft reset */
- out_be32(&vr->status_cfg, SOFT_RST);
- out_be32(&vr->status_cfg, 0);
- } else {
- /* clear DMA_END and other pending irqs */
- out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
- }
- }
-
- dev->field = 0;
-}
-
-static int restart_video_queue(struct viu_dmaqueue *vidq)
-{
- struct viu_buf *buf, *prev;
-
- dprintk(1, "%s vidq=0x%08lx\n", __func__, (unsigned long)vidq);
- if (!list_empty(&vidq->active)) {
- buf = list_entry(vidq->active.next, struct viu_buf, vb.queue);
- dprintk(2, "restart_queue [%p/%d]: restart dma\n",
- buf, buf->vb.i);
-
- viu_stop_dma(vidq->dev);
-
- /* cancel all outstanding capture requests */
- list_for_each_entry_safe(buf, prev, &vidq->active, vb.queue) {
- list_del(&buf->vb.queue);
- buf->vb.state = VIDEOBUF_ERROR;
- wake_up(&buf->vb.done);
- }
- mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
- return 0;
- }
-
- prev = NULL;
- for (;;) {
- if (list_empty(&vidq->queued))
- return 0;
- buf = list_entry(vidq->queued.next, struct viu_buf, vb.queue);
- if (prev == NULL) {
- list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue, &vidq->active);
-
- dprintk(1, "Restarting video dma\n");
- viu_stop_dma(vidq->dev);
- viu_start_dma(vidq->dev);
-
- buf->vb.state = VIDEOBUF_ACTIVE;
- mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2, "[%p/%d] restart_queue - first active\n",
- buf, buf->vb.i);
-
- } else if (prev->vb.width == buf->vb.width &&
- prev->vb.height == buf->vb.height &&
- prev->fmt == buf->fmt) {
- list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue, &vidq->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- dprintk(2, "[%p/%d] restart_queue - move to active\n",
- buf, buf->vb.i);
- } else {
- return 0;
- }
- prev = buf;
- }
-}
-
-static void viu_vid_timeout(unsigned long data)
-{
- struct viu_dev *dev = (struct viu_dev *)data;
- struct viu_buf *buf;
- struct viu_dmaqueue *vidq = &dev->vidq;
-
- while (!list_empty(&vidq->active)) {
- buf = list_entry(vidq->active.next, struct viu_buf, vb.queue);
- list_del(&buf->vb.queue);
- buf->vb.state = VIDEOBUF_ERROR;
- wake_up(&buf->vb.done);
- dprintk(1, "viu/0: [%p/%d] timeout\n", buf, buf->vb.i);
- }
-
- restart_video_queue(vidq);
-}
-
-/*
- * Videobuf operations
- */
-static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
- unsigned int *size)
-{
- struct viu_fh *fh = vq->priv_data;
-
- *size = fh->width * fh->height * fh->fmt->depth >> 3;
- if (*count == 0)
- *count = 32;
-
- while (*size * *count > VIU_VID_MEM_LIMIT * 1024 * 1024)
- (*count)--;
-
- dprintk(1, "%s, count=%d, size=%d\n", __func__, *count, *size);
- return 0;
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct viu_buf *buf)
-{
- struct videobuf_buffer *vb = &buf->vb;
- void *vaddr = NULL;
-
- BUG_ON(in_interrupt());
-
- videobuf_waiton(vq, &buf->vb, 0, 0);
-
- if (vq->int_ops && vq->int_ops->vaddr)
- vaddr = vq->int_ops->vaddr(vb);
-
- if (vaddr)
- videobuf_dma_contig_free(vq, &buf->vb);
-
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-inline int buffer_activate(struct viu_dev *dev, struct viu_buf *buf)
-{
- struct viu_reg *vr = dev->vr;
- int bpp;
-
- /* setup the DMA base address */
- reg_val.field_base_addr = videobuf_to_dma_contig(&buf->vb);
-
- dprintk(1, "buffer_activate [%p/%d]: dma addr 0x%lx\n",
- buf, buf->vb.i, (unsigned long)reg_val.field_base_addr);
-
- /* interlace is on by default, set horizontal DMA increment */
- reg_val.status_cfg = 0;
- bpp = buf->fmt->depth >> 3;
- switch (bpp) {
- case 2:
- reg_val.status_cfg &= ~MODE_32BIT;
- reg_val.dma_inc = buf->vb.width * 2;
- break;
- case 4:
- reg_val.status_cfg |= MODE_32BIT;
- reg_val.dma_inc = buf->vb.width * 4;
- break;
- default:
- dprintk(0, "doesn't support color depth(%d)\n",
- bpp * 8);
- return -EINVAL;
- }
-
- /* setup picture_count register */
- reg_val.picture_count = (buf->vb.height / 2) << 16 |
- buf->vb.width;
-
- reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN;
-
- buf->vb.state = VIDEOBUF_ACTIVE;
- dev->capfield = buf->vb.field;
-
- /* reset dma increment if needed */
- if (!V4L2_FIELD_HAS_BOTH(buf->vb.field))
- reg_val.dma_inc = 0;
-
- out_be32(&vr->dma_inc, reg_val.dma_inc);
- out_be32(&vr->picture_count, reg_val.picture_count);
- out_be32(&vr->field_base_addr, reg_val.field_base_addr);
- mod_timer(&dev->vidq.timeout, jiffies + BUFFER_TIMEOUT);
- return 0;
-}
-
-static int buffer_prepare(struct videobuf_queue *vq,
- struct videobuf_buffer *vb,
- enum v4l2_field field)
-{
- struct viu_fh *fh = vq->priv_data;
- struct viu_buf *buf = container_of(vb, struct viu_buf, vb);
- int rc;
-
- BUG_ON(fh->fmt == NULL);
-
- if (fh->width < 48 || fh->width > norm_maxw() ||
- fh->height < 32 || fh->height > norm_maxh())
- return -EINVAL;
- buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
- if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
-
- if (buf->fmt != fh->fmt ||
- buf->vb.width != fh->width ||
- buf->vb.height != fh->height ||
- buf->vb.field != field) {
- buf->fmt = fh->fmt;
- buf->vb.width = fh->width;
- buf->vb.height = fh->height;
- buf->vb.field = field;
- }
-
- if (buf->vb.state == VIDEOBUF_NEEDS_INIT) {
- rc = videobuf_iolock(vq, &buf->vb, NULL);
- if (rc != 0)
- goto fail;
-
- buf->vb.width = fh->width;
- buf->vb.height = fh->height;
- buf->vb.field = field;
- buf->fmt = fh->fmt;
- }
-
- buf->vb.state = VIDEOBUF_PREPARED;
- return 0;
-
-fail:
- free_buffer(vq, buf);
- return rc;
-}
-
-static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
- struct viu_buf *buf = container_of(vb, struct viu_buf, vb);
- struct viu_fh *fh = vq->priv_data;
- struct viu_dev *dev = fh->dev;
- struct viu_dmaqueue *vidq = &dev->vidq;
- struct viu_buf *prev;
-
- if (!list_empty(&vidq->queued)) {
- dprintk(1, "adding vb queue=0x%08lx\n",
- (unsigned long)&buf->vb.queue);
- dprintk(1, "vidq pointer 0x%p, queued 0x%p\n",
- vidq, &vidq->queued);
- dprintk(1, "dev %p, queued: self %p, next %p, head %p\n",
- dev, &vidq->queued, vidq->queued.next,
- vidq->queued.prev);
- list_add_tail(&buf->vb.queue, &vidq->queued);
- buf->vb.state = VIDEOBUF_QUEUED;
- dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
- buf, buf->vb.i);
- } else if (list_empty(&vidq->active)) {
- dprintk(1, "adding vb active=0x%08lx\n",
- (unsigned long)&buf->vb.queue);
- list_add_tail(&buf->vb.queue, &vidq->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2, "[%p/%d] buffer_queue - first active\n",
- buf, buf->vb.i);
-
- buffer_activate(dev, buf);
- } else {
- dprintk(1, "adding vb queue2=0x%08lx\n",
- (unsigned long)&buf->vb.queue);
- prev = list_entry(vidq->active.prev, struct viu_buf, vb.queue);
- if (prev->vb.width == buf->vb.width &&
- prev->vb.height == buf->vb.height &&
- prev->fmt == buf->fmt) {
- list_add_tail(&buf->vb.queue, &vidq->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- dprintk(2, "[%p/%d] buffer_queue - append to active\n",
- buf, buf->vb.i);
- } else {
- list_add_tail(&buf->vb.queue, &vidq->queued);
- buf->vb.state = VIDEOBUF_QUEUED;
- dprintk(2, "[%p/%d] buffer_queue - first queued\n",
- buf, buf->vb.i);
- }
- }
-}
-
-static void buffer_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
-{
- struct viu_buf *buf = container_of(vb, struct viu_buf, vb);
- struct viu_fh *fh = vq->priv_data;
- struct viu_dev *dev = (struct viu_dev *)fh->dev;
-
- viu_stop_dma(dev);
- free_buffer(vq, buf);
-}
-
-static struct videobuf_queue_ops viu_video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-/*
- * IOCTL vidioc handling
- */
-static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *cap)
-{
- strcpy(cap->driver, "viu");
- strcpy(cap->card, "viu");
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_STREAMING |
- V4L2_CAP_VIDEO_OVERLAY |
- V4L2_CAP_READWRITE;
- return 0;
-}
-
-static int vidioc_enum_fmt(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- int index = f->index;
-
- if (f->index > NUM_FORMATS)
- return -EINVAL;
-
- strlcpy(f->description, formats[index].name, sizeof(f->description));
- f->pixelformat = formats[index].fourcc;
- return 0;
-}
-
-static int vidioc_g_fmt_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct viu_fh *fh = priv;
-
- f->fmt.pix.width = fh->width;
- f->fmt.pix.height = fh->height;
- f->fmt.pix.field = fh->vb_vidq.field;
- f->fmt.pix.pixelformat = fh->fmt->pixelformat;
- f->fmt.pix.bytesperline =
- (f->fmt.pix.width * fh->fmt->depth) >> 3;
- f->fmt.pix.sizeimage = fh->sizeimage;
- return 0;
-}
-
-static int vidioc_try_fmt_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct viu_fmt *fmt;
- enum v4l2_field field;
- unsigned int maxw, maxh;
-
- fmt = format_by_fourcc(f->fmt.pix.pixelformat);
- if (!fmt) {
- dprintk(1, "Fourcc format (0x%08x) invalid.",
- f->fmt.pix.pixelformat);
- return -EINVAL;
- }
-
- field = f->fmt.pix.field;
-
- if (field == V4L2_FIELD_ANY) {
- field = V4L2_FIELD_INTERLACED;
- } else if (field != V4L2_FIELD_INTERLACED) {
- dprintk(1, "Field type invalid.\n");
- return -EINVAL;
- }
-
- maxw = norm_maxw();
- maxh = norm_maxh();
-
- f->fmt.pix.field = field;
- if (f->fmt.pix.height < 32)
- f->fmt.pix.height = 32;
- if (f->fmt.pix.height > maxh)
- f->fmt.pix.height = maxh;
- if (f->fmt.pix.width < 48)
- f->fmt.pix.width = 48;
- if (f->fmt.pix.width > maxw)
- f->fmt.pix.width = maxw;
- f->fmt.pix.width &= ~0x03;
- f->fmt.pix.bytesperline =
- (f->fmt.pix.width * fmt->depth) >> 3;
-
- return 0;
-}
-
-static int vidioc_s_fmt_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct viu_fh *fh = priv;
- int ret;
-
- ret = vidioc_try_fmt_cap(file, fh, f);
- if (ret < 0)
- return ret;
-
- fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
- fh->width = f->fmt.pix.width;
- fh->height = f->fmt.pix.height;
- fh->sizeimage = f->fmt.pix.sizeimage;
- fh->vb_vidq.field = f->fmt.pix.field;
- fh->type = f->type;
- dprintk(1, "set to pixelformat '%4.6s'\n", (char *)&fh->fmt->name);
- return 0;
-}
-
-static int vidioc_g_fmt_overlay(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct viu_fh *fh = priv;
-
- f->fmt.win = fh->win;
- return 0;
-}
-
-static int verify_preview(struct viu_dev *dev, struct v4l2_window *win)
-{
- enum v4l2_field field;
- int maxw, maxh;
-
- if (dev->ovbuf.base == NULL)
- return -EINVAL;
- if (dev->ovfmt == NULL)
- return -EINVAL;
- if (win->w.width < 48 || win->w.height < 32)
- return -EINVAL;
-
- field = win->field;
- maxw = dev->crop_current.width;
- maxh = dev->crop_current.height;
-
- if (field == V4L2_FIELD_ANY) {
- field = (win->w.height > maxh/2)
- ? V4L2_FIELD_INTERLACED
- : V4L2_FIELD_TOP;
- }
- switch (field) {
- case V4L2_FIELD_TOP:
- case V4L2_FIELD_BOTTOM:
- maxh = maxh / 2;
- break;
- case V4L2_FIELD_INTERLACED:
- break;
- default:
- return -EINVAL;
- }
-
- win->field = field;
- if (win->w.width > maxw)
- win->w.width = maxw;
- if (win->w.height > maxh)
- win->w.height = maxh;
- return 0;
-}
-
-inline void viu_activate_overlay(struct viu_reg *viu_reg)
-{
- struct viu_reg *vr = viu_reg;
-
- out_be32(&vr->field_base_addr, reg_val.field_base_addr);
- out_be32(&vr->dma_inc, reg_val.dma_inc);
- out_be32(&vr->picture_count, reg_val.picture_count);
-}
-
-static int viu_setup_preview(struct viu_dev *dev, struct viu_fh *fh)
-{
- int bpp;
-
- dprintk(1, "%s %dx%d %s\n", __func__,
- fh->win.w.width, fh->win.w.height, dev->ovfmt->name);
-
- reg_val.status_cfg = 0;
-
- /* setup window */
- reg_val.picture_count = (fh->win.w.height / 2) << 16 |
- fh->win.w.width;
-
- /* setup color depth and dma increment */
- bpp = dev->ovfmt->depth / 8;
- switch (bpp) {
- case 2:
- reg_val.status_cfg &= ~MODE_32BIT;
- reg_val.dma_inc = fh->win.w.width * 2;
- break;
- case 4:
- reg_val.status_cfg |= MODE_32BIT;
- reg_val.dma_inc = fh->win.w.width * 4;
- break;
- default:
- dprintk(0, "device doesn't support color depth(%d)\n",
- bpp * 8);
- return -EINVAL;
- }
-
- dev->ovfield = fh->win.field;
- if (!V4L2_FIELD_HAS_BOTH(dev->ovfield))
- reg_val.dma_inc = 0;
-
- reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN;
-
- /* setup the base address of the overlay buffer */
- reg_val.field_base_addr = (u32)dev->ovbuf.base;
-
- return 0;
-}
-
-static int vidioc_s_fmt_overlay(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct viu_fh *fh = priv;
- struct viu_dev *dev = (struct viu_dev *)fh->dev;
- unsigned long flags;
- int err;
-
- err = verify_preview(dev, &f->fmt.win);
- if (err)
- return err;
-
- fh->win = f->fmt.win;
-
- spin_lock_irqsave(&dev->slock, flags);
- viu_setup_preview(dev, fh);
- spin_unlock_irqrestore(&dev->slock, flags);
- return 0;
-}
-
-static int vidioc_try_fmt_overlay(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- return 0;
-}
-
-static int vidioc_overlay(struct file *file, void *priv, unsigned int on)
-{
- struct viu_fh *fh = priv;
- struct viu_dev *dev = (struct viu_dev *)fh->dev;
- unsigned long flags;
-
- if (on) {
- spin_lock_irqsave(&dev->slock, flags);
- viu_activate_overlay(dev->vr);
- dev->ovenable = 1;
-
- /* start dma */
- viu_start_dma(dev);
- spin_unlock_irqrestore(&dev->slock, flags);
- } else {
- viu_stop_dma(dev);
- dev->ovenable = 0;
- }
-
- return 0;
-}
-
-int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
-{
- struct viu_fh *fh = priv;
- struct viu_dev *dev = fh->dev;
- struct v4l2_framebuffer *fb = arg;
-
- *fb = dev->ovbuf;
- fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
- return 0;
-}
-
-int vidioc_s_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
-{
- struct viu_fh *fh = priv;
- struct viu_dev *dev = fh->dev;
- struct v4l2_framebuffer *fb = arg;
- struct viu_fmt *fmt;
-
- if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- /* check args */
- fmt = format_by_fourcc(fb->fmt.pixelformat);
- if (fmt == NULL)
- return -EINVAL;
-
- /* ok, accept it */
- dev->ovbuf = *fb;
- dev->ovfmt = fmt;
- if (dev->ovbuf.fmt.bytesperline == 0) {
- dev->ovbuf.fmt.bytesperline =
- dev->ovbuf.fmt.width * fmt->depth / 8;
- }
- return 0;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *p)
-{
- struct viu_fh *fh = priv;
-
- return videobuf_reqbufs(&fh->vb_vidq, p);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *p)
-{
- struct viu_fh *fh = priv;
-
- return videobuf_querybuf(&fh->vb_vidq, p);
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct viu_fh *fh = priv;
-
- return videobuf_qbuf(&fh->vb_vidq, p);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
- struct viu_fh *fh = priv;
-
- return videobuf_dqbuf(&fh->vb_vidq, p,
- file->f_flags & O_NONBLOCK);
-}
-
-static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
-{
- struct viu_fh *fh = priv;
- struct viu_dev *dev = fh->dev;
-
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- if (fh->type != i)
- return -EINVAL;
-
- if (dev->ovenable)
- dev->ovenable = 0;
-
- viu_start_dma(fh->dev);
-
- return videobuf_streamon(&fh->vb_vidq);
-}
-
-static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
- struct viu_fh *fh = priv;
-
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- if (fh->type != i)
- return -EINVAL;
-
- viu_stop_dma(fh->dev);
-
- return videobuf_streamoff(&fh->vb_vidq);
-}
-
-#define decoder_call(viu, o, f, args...) \
- v4l2_subdev_call(viu->decoder, o, f, ##args)
-
-static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
-{
- struct viu_fh *fh = priv;
-
- decoder_call(fh->dev, video, querystd, std_id);
- return 0;
-}
-
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id)
-{
- struct viu_fh *fh = priv;
-
- fh->dev->std = *id;
- decoder_call(fh->dev, core, s_std, *id);
- return 0;
-}
-
-static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
- struct viu_fh *fh = priv;
-
- *std_id = fh->dev->std;
- return 0;
-}
-
-/* only one input in this driver */
-static int vidioc_enum_input(struct file *file, void *priv,
- struct v4l2_input *inp)
-{
- struct viu_fh *fh = priv;
-
- if (inp->index != 0)
- return -EINVAL;
-
- inp->type = V4L2_INPUT_TYPE_CAMERA;
- inp->std = fh->dev->vdev->tvnorms;
- strcpy(inp->name, "Camera");
- return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
- *i = 0;
- return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
- struct viu_fh *fh = priv;
-
- if (i > 1)
- return -EINVAL;
-
- decoder_call(fh->dev, video, s_routing, i, 0, 0);
- return 0;
-}
-
-/* Controls */
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
- if (qc->id && qc->id == viu_qctrl[i].id) {
- memcpy(qc, &(viu_qctrl[i]), sizeof(*qc));
- return 0;
- }
- }
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
- if (ctrl->id == viu_qctrl[i].id) {
- ctrl->value = qctl_regs[i];
- return 0;
- }
- }
- return -EINVAL;
-}
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
- if (ctrl->id == viu_qctrl[i].id) {
- if (ctrl->value < viu_qctrl[i].minimum
- || ctrl->value > viu_qctrl[i].maximum)
- return -ERANGE;
- qctl_regs[i] = ctrl->value;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-inline void viu_activate_next_buf(struct viu_dev *dev,
- struct viu_dmaqueue *viuq)
-{
- struct viu_dmaqueue *vidq = viuq;
- struct viu_buf *buf;
-
- /* launch another DMA operation for an active/queued buffer */
- if (!list_empty(&vidq->active)) {
- buf = list_entry(vidq->active.next, struct viu_buf,
- vb.queue);
- dprintk(1, "start another queued buffer: 0x%p\n", buf);
- buffer_activate(dev, buf);
- } else if (!list_empty(&vidq->queued)) {
- buf = list_entry(vidq->queued.next, struct viu_buf,
- vb.queue);
- list_del(&buf->vb.queue);
-
- dprintk(1, "start another queued buffer: 0x%p\n", buf);
- list_add_tail(&buf->vb.queue, &vidq->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- buffer_activate(dev, buf);
- }
-}
-
-inline void viu_default_settings(struct viu_reg *viu_reg)
-{
- struct viu_reg *vr = viu_reg;
-
- out_be32(&vr->luminance, 0x9512A254);
- out_be32(&vr->chroma_r, 0x03310000);
- out_be32(&vr->chroma_g, 0x06600F38);
- out_be32(&vr->chroma_b, 0x00000409);
- out_be32(&vr->alpha, 0x000000ff);
- out_be32(&vr->req_alarm, 0x00000090);
- dprintk(1, "status reg: 0x%08x, field base: 0x%08x\n",
- in_be32(&vr->status_cfg), in_be32(&vr->field_base_addr));
-}
-
-static void viu_overlay_intr(struct viu_dev *dev, u32 status)
-{
- struct viu_reg *vr = dev->vr;
-
- if (status & INT_DMA_END_STATUS)
- dev->dma_done = 1;
-
- if (status & INT_FIELD_STATUS) {
- if (dev->dma_done) {
- u32 addr = reg_val.field_base_addr;
-
- dev->dma_done = 0;
- if (status & FIELD_NO)
- addr += reg_val.dma_inc;
-
- out_be32(&vr->field_base_addr, addr);
- out_be32(&vr->dma_inc, reg_val.dma_inc);
- out_be32(&vr->status_cfg,
- (status & 0xffc0ffff) |
- (status & INT_ALL_STATUS) |
- reg_val.status_cfg);
- } else if (status & INT_VSYNC_STATUS) {
- out_be32(&vr->status_cfg,
- (status & 0xffc0ffff) |
- (status & INT_ALL_STATUS) |
- reg_val.status_cfg);
- }
- }
-}
-
-static void viu_capture_intr(struct viu_dev *dev, u32 status)
-{
- struct viu_dmaqueue *vidq = &dev->vidq;
- struct viu_reg *vr = dev->vr;
- struct viu_buf *buf;
- int field_num;
- int need_two;
- int dma_done = 0;
-
- field_num = status & FIELD_NO;
- need_two = V4L2_FIELD_HAS_BOTH(dev->capfield);
-
- if (status & INT_DMA_END_STATUS) {
- dma_done = 1;
- if (((field_num == 0) && (dev->field == 0)) ||
- (field_num && (dev->field == 1)))
- dev->field++;
- }
-
- if (status & INT_FIELD_STATUS) {
- dprintk(1, "irq: field %d, done %d\n",
- !!field_num, dma_done);
- if (unlikely(dev->first)) {
- if (field_num == 0) {
- dev->first = 0;
- dprintk(1, "activate first buf\n");
- viu_activate_next_buf(dev, vidq);
- } else
- dprintk(1, "wait field 0\n");
- return;
- }
-
- /* setup buffer address for next dma operation */
- if (!list_empty(&vidq->active)) {
- u32 addr = reg_val.field_base_addr;
-
- if (field_num && need_two) {
- addr += reg_val.dma_inc;
- dprintk(1, "field 1, 0x%lx, dev field %d\n",
- (unsigned long)addr, dev->field);
- }
- out_be32(&vr->field_base_addr, addr);
- out_be32(&vr->dma_inc, reg_val.dma_inc);
- out_be32(&vr->status_cfg,
- (status & 0xffc0ffff) |
- (status & INT_ALL_STATUS) |
- reg_val.status_cfg);
- return;
- }
- }
-
- if (dma_done && field_num && (dev->field == 2)) {
- dev->field = 0;
- buf = list_entry(vidq->active.next,
- struct viu_buf, vb.queue);
- dprintk(1, "viu/0: [%p/%d] 0x%lx/0x%lx: dma complete\n",
- buf, buf->vb.i,
- (unsigned long)videobuf_to_dma_contig(&buf->vb),
- (unsigned long)in_be32(&vr->field_base_addr));
-
- if (waitqueue_active(&buf->vb.done)) {
- list_del(&buf->vb.queue);
- do_gettimeofday(&buf->vb.ts);
- buf->vb.state = VIDEOBUF_DONE;
- buf->vb.field_count++;
- wake_up(&buf->vb.done);
- }
- /* activate next dma buffer */
- viu_activate_next_buf(dev, vidq);
- }
-}
-
-static irqreturn_t viu_intr(int irq, void *dev_id)
-{
- struct viu_dev *dev = (struct viu_dev *)dev_id;
- struct viu_reg *vr = dev->vr;
- u32 status;
- u32 error;
-
- status = in_be32(&vr->status_cfg);
-
- if (status & INT_ERROR_STATUS) {
- dev->irqs.error_irq++;
- error = status & ERR_MASK;
- if (error)
- dprintk(1, "Err: error(%d), times:%d!\n",
- error >> 4, dev->irqs.error_irq);
- /* Clear interrupt error bit and error flags */
- out_be32(&vr->status_cfg,
- (status & 0xffc0ffff) | INT_ERROR_STATUS);
- }
-
- if (status & INT_DMA_END_STATUS) {
- dev->irqs.dma_end_irq++;
- dev->dma_done = 1;
- dprintk(2, "VIU DMA end interrupt times: %d\n",
- dev->irqs.dma_end_irq);
- }
-
- if (status & INT_HSYNC_STATUS)
- dev->irqs.hsync_irq++;
-
- if (status & INT_FIELD_STATUS) {
- dev->irqs.field_irq++;
- dprintk(2, "VIU field interrupt times: %d\n",
- dev->irqs.field_irq);
- }
-
- if (status & INT_VSTART_STATUS)
- dev->irqs.vstart_irq++;
-
- if (status & INT_VSYNC_STATUS) {
- dev->irqs.vsync_irq++;
- dprintk(2, "VIU vsync interrupt times: %d\n",
- dev->irqs.vsync_irq);
- }
-
- /* clear all pending irqs */
- status = in_be32(&vr->status_cfg);
- out_be32(&vr->status_cfg,
- (status & 0xffc0ffff) | (status & INT_ALL_STATUS));
-
- if (dev->ovenable) {
- viu_overlay_intr(dev, status);
- return IRQ_HANDLED;
- }
-
- /* Capture mode */
- viu_capture_intr(dev, status);
- return IRQ_HANDLED;
-}
-
-/*
- * File operations for the device
- */
-static int viu_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct viu_dev *dev = video_get_drvdata(vdev);
- struct viu_fh *fh;
- struct viu_reg *vr;
- int minor = vdev->minor;
- u32 status_cfg;
- int i;
-
- dprintk(1, "viu: open (minor=%d)\n", minor);
-
- dev->users++;
- if (dev->users > 1) {
- dev->users--;
- return -EBUSY;
- }
-
- vr = dev->vr;
-
- dprintk(1, "open minor=%d type=%s users=%d\n", minor,
- v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users);
-
- if (mutex_lock_interruptible(&dev->lock)) {
- dev->users--;
- return -ERESTARTSYS;
- }
-
- /* allocate and initialize per filehandle data */
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (!fh) {
- dev->users--;
- mutex_unlock(&dev->lock);
- return -ENOMEM;
- }
-
- file->private_data = fh;
- fh->dev = dev;
-
- fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- fh->fmt = format_by_fourcc(V4L2_PIX_FMT_RGB32);
- fh->width = norm_maxw();
- fh->height = norm_maxh();
- dev->crop_current.width = fh->width;
- dev->crop_current.height = fh->height;
-
- /* Put all controls at a sane state */
- for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++)
- qctl_regs[i] = viu_qctrl[i].default_value;
-
- dprintk(1, "Open: fh=0x%08lx, dev=0x%08lx, dev->vidq=0x%08lx\n",
- (unsigned long)fh, (unsigned long)dev,
- (unsigned long)&dev->vidq);
- dprintk(1, "Open: list_empty queued=%d\n",
- list_empty(&dev->vidq.queued));
- dprintk(1, "Open: list_empty active=%d\n",
- list_empty(&dev->vidq.active));
-
- viu_default_settings(vr);
-
- status_cfg = in_be32(&vr->status_cfg);
- out_be32(&vr->status_cfg,
- status_cfg & ~(INT_VSYNC_EN | INT_HSYNC_EN |
- INT_FIELD_EN | INT_VSTART_EN |
- INT_DMA_END_EN | INT_ERROR_EN | INT_ECC_EN));
-
- status_cfg = in_be32(&vr->status_cfg);
- out_be32(&vr->status_cfg, status_cfg | INT_ALL_STATUS);
-
- spin_lock_init(&fh->vbq_lock);
- videobuf_queue_dma_contig_init(&fh->vb_vidq, &viu_video_qops,
- dev->dev, &fh->vbq_lock,
- fh->type, V4L2_FIELD_INTERLACED,
- sizeof(struct viu_buf), fh,
- &fh->dev->lock);
- mutex_unlock(&dev->lock);
- return 0;
-}
-
-static ssize_t viu_read(struct file *file, char __user *data, size_t count,
- loff_t *ppos)
-{
- struct viu_fh *fh = file->private_data;
- struct viu_dev *dev = fh->dev;
- int ret = 0;
-
- dprintk(2, "%s\n", __func__);
- if (dev->ovenable)
- dev->ovenable = 0;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- if (mutex_lock_interruptible(&dev->lock))
- return -ERESTARTSYS;
- viu_start_dma(dev);
- ret = videobuf_read_stream(&fh->vb_vidq, data, count,
- ppos, 0, file->f_flags & O_NONBLOCK);
- mutex_unlock(&dev->lock);
- return ret;
- }
- return 0;
-}
-
-static unsigned int viu_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct viu_fh *fh = file->private_data;
- struct videobuf_queue *q = &fh->vb_vidq;
- struct viu_dev *dev = fh->dev;
- unsigned int res;
-
- if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
- return POLLERR;
-
- mutex_lock(&dev->lock);
- res = videobuf_poll_stream(file, q, wait);
- mutex_unlock(&dev->lock);
- return res;
-}
-
-static int viu_release(struct file *file)
-{
- struct viu_fh *fh = file->private_data;
- struct viu_dev *dev = fh->dev;
- int minor = video_devdata(file)->minor;
-
- mutex_lock(&dev->lock);
- viu_stop_dma(dev);
- videobuf_stop(&fh->vb_vidq);
- videobuf_mmap_free(&fh->vb_vidq);
- mutex_unlock(&dev->lock);
-
- kfree(fh);
-
- dev->users--;
- dprintk(1, "close (minor=%d, users=%d)\n",
- minor, dev->users);
- return 0;
-}
-
-void viu_reset(struct viu_reg *reg)
-{
- out_be32(&reg->status_cfg, 0);
- out_be32(&reg->luminance, 0x9512a254);
- out_be32(&reg->chroma_r, 0x03310000);
- out_be32(&reg->chroma_g, 0x06600f38);
- out_be32(&reg->chroma_b, 0x00000409);
- out_be32(&reg->field_base_addr, 0);
- out_be32(&reg->dma_inc, 0);
- out_be32(&reg->picture_count, 0x01e002d0);
- out_be32(&reg->req_alarm, 0x00000090);
- out_be32(&reg->alpha, 0x000000ff);
-}
-
-static int viu_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct viu_fh *fh = file->private_data;
- struct viu_dev *dev = fh->dev;
- int ret;
-
- dprintk(1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
-
- if (mutex_lock_interruptible(&dev->lock))
- return -ERESTARTSYS;
- ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
- mutex_unlock(&dev->lock);
-
- dprintk(1, "vma start=0x%08lx, size=%ld, ret=%d\n",
- (unsigned long)vma->vm_start,
- (unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
- ret);
-
- return ret;
-}
-
-static struct v4l2_file_operations viu_fops = {
- .owner = THIS_MODULE,
- .open = viu_open,
- .release = viu_release,
- .read = viu_read,
- .poll = viu_poll,
- .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
- .mmap = viu_mmap,
-};
-
-static const struct v4l2_ioctl_ops viu_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap,
- .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt,
- .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_overlay,
- .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_overlay,
- .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_overlay,
- .vidioc_overlay = vidioc_overlay,
- .vidioc_g_fbuf = vidioc_g_fbuf,
- .vidioc_s_fbuf = vidioc_s_fbuf,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_g_std = vidioc_g_std,
- .vidioc_s_std = vidioc_s_std,
- .vidioc_querystd = vidioc_querystd,
- .vidioc_enum_input = vidioc_enum_input,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
-};
-
-static struct video_device viu_template = {
- .name = "FSL viu",
- .fops = &viu_fops,
- .minor = -1,
- .ioctl_ops = &viu_ioctl_ops,
- .release = video_device_release,
-
- .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL,
- .current_norm = V4L2_STD_NTSC_M,
-};
-
-static int __devinit viu_of_probe(struct platform_device *op)
-{
- struct viu_dev *viu_dev;
- struct video_device *vdev;
- struct resource r;
- struct viu_reg __iomem *viu_regs;
- struct i2c_adapter *ad;
- int ret, viu_irq;
-
- ret = of_address_to_resource(op->dev.of_node, 0, &r);
- if (ret) {
- dev_err(&op->dev, "Can't parse device node resource\n");
- return -ENODEV;
- }
-
- viu_irq = irq_of_parse_and_map(op->dev.of_node, 0);
- if (viu_irq == NO_IRQ) {
- dev_err(&op->dev, "Error while mapping the irq\n");
- return -EINVAL;
- }
-
- /* request mem region */
- if (!devm_request_mem_region(&op->dev, r.start,
- sizeof(struct viu_reg), DRV_NAME)) {
- dev_err(&op->dev, "Error while requesting mem region\n");
- ret = -EBUSY;
- goto err;
- }
-
- /* remap registers */
- viu_regs = devm_ioremap(&op->dev, r.start, sizeof(struct viu_reg));
- if (!viu_regs) {
- dev_err(&op->dev, "Can't map register set\n");
- ret = -ENOMEM;
- goto err;
- }
-
- /* Prepare our private structure */
- viu_dev = devm_kzalloc(&op->dev, sizeof(struct viu_dev), GFP_ATOMIC);
- if (!viu_dev) {
- dev_err(&op->dev, "Can't allocate private structure\n");
- ret = -ENOMEM;
- goto err;
- }
-
- viu_dev->vr = viu_regs;
- viu_dev->irq = viu_irq;
- viu_dev->dev = &op->dev;
-
- /* init video dma queues */
- INIT_LIST_HEAD(&viu_dev->vidq.active);
- INIT_LIST_HEAD(&viu_dev->vidq.queued);
-
- snprintf(viu_dev->v4l2_dev.name,
- sizeof(viu_dev->v4l2_dev.name), "%s", "VIU");
- ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev);
- if (ret < 0) {
- dev_err(&op->dev, "v4l2_device_register() failed: %d\n", ret);
- goto err;
- }
-
- ad = i2c_get_adapter(0);
- viu_dev->decoder = v4l2_i2c_new_subdev(&viu_dev->v4l2_dev, ad,
- "saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
-
- viu_dev->vidq.timeout.function = viu_vid_timeout;
- viu_dev->vidq.timeout.data = (unsigned long)viu_dev;
- init_timer(&viu_dev->vidq.timeout);
- viu_dev->first = 1;
-
- /* Allocate memory for video device */
- vdev = video_device_alloc();
- if (vdev == NULL) {
- ret = -ENOMEM;
- goto err_vdev;
- }
-
- memcpy(vdev, &viu_template, sizeof(viu_template));
-
- vdev->v4l2_dev = &viu_dev->v4l2_dev;
-
- viu_dev->vdev = vdev;
-
- /* initialize locks */
- mutex_init(&viu_dev->lock);
- viu_dev->vdev->lock = &viu_dev->lock;
- spin_lock_init(&viu_dev->slock);
-
- video_set_drvdata(viu_dev->vdev, viu_dev);
-
- mutex_lock(&viu_dev->lock);
-
- ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1);
- if (ret < 0) {
- video_device_release(viu_dev->vdev);
- goto err_vdev;
- }
-
- /* enable VIU clock */
- viu_dev->clk = clk_get(&op->dev, "viu_clk");
- if (IS_ERR(viu_dev->clk)) {
- dev_err(&op->dev, "failed to find the clock module!\n");
- ret = -ENODEV;
- goto err_clk;
- } else {
- clk_enable(viu_dev->clk);
- }
-
- /* reset VIU module */
- viu_reset(viu_dev->vr);
-
- /* install interrupt handler */
- if (request_irq(viu_dev->irq, viu_intr, 0, "viu", (void *)viu_dev)) {
- dev_err(&op->dev, "Request VIU IRQ failed.\n");
- ret = -ENODEV;
- goto err_irq;
- }
-
- mutex_unlock(&viu_dev->lock);
-
- dev_info(&op->dev, "Freescale VIU Video Capture Board\n");
- return ret;
-
-err_irq:
- clk_disable(viu_dev->clk);
- clk_put(viu_dev->clk);
-err_clk:
- video_unregister_device(viu_dev->vdev);
-err_vdev:
- mutex_unlock(&viu_dev->lock);
- i2c_put_adapter(ad);
- v4l2_device_unregister(&viu_dev->v4l2_dev);
-err:
- irq_dispose_mapping(viu_irq);
- return ret;
-}
-
-static int __devexit viu_of_remove(struct platform_device *op)
-{
- struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
- struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
- struct v4l2_subdev *sdev = list_entry(v4l2_dev->subdevs.next,
- struct v4l2_subdev, list);
- struct i2c_client *client = v4l2_get_subdevdata(sdev);
-
- free_irq(dev->irq, (void *)dev);
- irq_dispose_mapping(dev->irq);
-
- clk_disable(dev->clk);
- clk_put(dev->clk);
-
- video_unregister_device(dev->vdev);
- i2c_put_adapter(client->adapter);
- v4l2_device_unregister(&dev->v4l2_dev);
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int viu_suspend(struct platform_device *op, pm_message_t state)
-{
- struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
- struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
-
- clk_disable(dev->clk);
- return 0;
-}
-
-static int viu_resume(struct platform_device *op)
-{
- struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
- struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
-
- clk_enable(dev->clk);
- return 0;
-}
-#endif
-
-/*
- * Initialization and module stuff
- */
-static struct of_device_id mpc512x_viu_of_match[] = {
- {
- .compatible = "fsl,mpc5121-viu",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, mpc512x_viu_of_match);
-
-static struct platform_driver viu_of_platform_driver = {
- .probe = viu_of_probe,
- .remove = __devexit_p(viu_of_remove),
-#ifdef CONFIG_PM
- .suspend = viu_suspend,
- .resume = viu_resume,
-#endif
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- .of_match_table = mpc512x_viu_of_match,
- },
-};
-
-module_platform_driver(viu_of_platform_driver);
-
-MODULE_DESCRIPTION("Freescale Video-In(VIU)");
-MODULE_AUTHOR("Hongjun Chen");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VIU_VERSION);