--- /dev/null
+/*
+ * cobalt V4L2 API
+ *
+ * Derived from ivtv-ioctl.c and cx18-fileops.c
+ *
+ * Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
+ * All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/math64.h>
+#include <linux/pci.h>
+#include <linux/v4l2-dv-timings.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/adv7604.h>
+#include <media/adv7842.h>
+
+#include "cobalt-alsa.h"
+#include "cobalt-cpld.h"
+#include "cobalt-driver.h"
+#include "cobalt-v4l2.h"
+#include "cobalt-irq.h"
+#include "cobalt-omnitek.h"
+
+static const struct v4l2_dv_timings cea1080p60 = V4L2_DV_BT_CEA_1920X1080P60;
+
+/* vb2 DMA streaming ops */
+
+static int cobalt_queue_setup(struct vb2_queue *q, const void *parg,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *alloc_ctxs[])
+{
+ const struct v4l2_format *fmt = parg;
+ struct cobalt_stream *s = q->drv_priv;
+ unsigned size = s->stride * s->height;
+
+ if (*num_buffers < 3)
+ *num_buffers = 3;
+ if (*num_buffers > NR_BUFS)
+ *num_buffers = NR_BUFS;
+ *num_planes = 1;
+ if (fmt) {
+ if (fmt->fmt.pix.sizeimage < size)
+ return -EINVAL;
+ size = fmt->fmt.pix.sizeimage;
+ }
+ sizes[0] = size;
+ alloc_ctxs[0] = s->cobalt->alloc_ctx;
+ return 0;
+}
+
+static int cobalt_buf_init(struct vb2_buffer *vb)
+{
+ struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+ struct cobalt *cobalt = s->cobalt;
+ const size_t max_pages_per_line =
+ (COBALT_MAX_WIDTH * COBALT_MAX_BPP) / PAGE_SIZE + 2;
+ const size_t bytes =
+ COBALT_MAX_HEIGHT * max_pages_per_line * 0x20;
+ const size_t audio_bytes = ((1920 * 4) / PAGE_SIZE + 1) * 0x20;
+ struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+ struct sg_table *sg_desc = vb2_dma_sg_plane_desc(vb, 0);
+ unsigned size;
+ int ret;
+
+ size = s->stride * s->height;
+ if (vb2_plane_size(vb, 0) < size) {
+ cobalt_info("data will not fit into plane (%lu < %u)\n",
+ vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+
+ if (desc->virt == NULL) {
+ desc->dev = &cobalt->pci_dev->dev;
+ descriptor_list_allocate(desc,
+ s->is_audio ? audio_bytes : bytes);
+ if (desc->virt == NULL)
+ return -ENOMEM;
+ }
+ ret = descriptor_list_create(cobalt, sg_desc->sgl,
+ !s->is_output, sg_desc->nents, size,
+ s->width * s->bpp, s->stride, desc);
+ if (ret)
+ descriptor_list_free(desc);
+ return ret;
+}
+
+static void cobalt_buf_cleanup(struct vb2_buffer *vb)
+{
+ struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+ struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+
+ descriptor_list_free(desc);
+}
+
+static int cobalt_buf_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct cobalt_stream *s = vb->vb2_queue->drv_priv;
+
+ vb2_set_plane_payload(vb, 0, s->stride * s->height);
+ vbuf->field = V4L2_FIELD_NONE;
+ return 0;
+}
+
+static void chain_all_buffers(struct cobalt_stream *s)
+{
+ struct sg_dma_desc_info *desc[NR_BUFS];
+ struct cobalt_buffer *cb;
+ struct list_head *p;
+ int i = 0;
+
+ list_for_each(p, &s->bufs) {
+ cb = list_entry(p, struct cobalt_buffer, list);
+ desc[i] = &s->dma_desc_info[cb->vb.vb2_buf.index];
+ if (i > 0)
+ descriptor_list_chain(desc[i-1], desc[i]);
+ i++;
+ }
+}
+
+static void cobalt_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_queue *q = vb->vb2_queue;
+ struct cobalt_stream *s = q->drv_priv;
+ struct cobalt_buffer *cb = to_cobalt_buffer(vbuf);
+ struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
+ unsigned long flags;
+
+ /* Prepare new buffer */
+ descriptor_list_loopback(desc);
+ descriptor_list_interrupt_disable(desc);
+
+ spin_lock_irqsave(&s->irqlock, flags);
+ list_add_tail(&cb->list, &s->bufs);
+ chain_all_buffers(s);
+ spin_unlock_irqrestore(&s->irqlock, flags);
+}
+
+static void cobalt_enable_output(struct cobalt_stream *s)
+{
+ struct cobalt *cobalt = s->cobalt;
+ struct v4l2_bt_timings *bt = &s->timings.bt;
+ struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+ COBALT_TX_BASE(cobalt);
+ unsigned fmt = s->pixfmt != V4L2_PIX_FMT_BGR32 ?
+ M00514_CONTROL_BITMAP_FORMAT_16_BPP_MSK : 0;
+ struct v4l2_subdev_format sd_fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ };
+
+ if (!cobalt_cpld_set_freq(cobalt, bt->pixelclock)) {
+ cobalt_err("pixelclock out of range\n");
+ return;
+ }
+
+ sd_fmt.format.colorspace = s->colorspace;
+ sd_fmt.format.xfer_func = s->xfer_func;
+ sd_fmt.format.ycbcr_enc = s->ycbcr_enc;
+ sd_fmt.format.quantization = s->quantization;
+ sd_fmt.format.width = bt->width;
+ sd_fmt.format.height = bt->height;
+
+ /* Set up FDMA packer */
+ switch (s->pixfmt) {
+ case V4L2_PIX_FMT_YUYV:
+ sd_fmt.format.code = MEDIA_BUS_FMT_UYVY8_1X16;
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ sd_fmt.format.code = MEDIA_BUS_FMT_RGB888_1X24;
+ break;
+ }
+ v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
+
+ iowrite32(0, &vo->control);
+ /* 1080p60 */
+ iowrite32(bt->hsync, &vo->sync_generator_h_sync_length);
+ iowrite32(bt->hbackporch, &vo->sync_generator_h_backporch_length);
+ iowrite32(bt->width, &vo->sync_generator_h_active_length);
+ iowrite32(bt->hfrontporch, &vo->sync_generator_h_frontporch_length);
+ iowrite32(bt->vsync, &vo->sync_generator_v_sync_length);
+ iowrite32(bt->vbackporch, &vo->sync_generator_v_backporch_length);
+ iowrite32(bt->height, &vo->sync_generator_v_active_length);
+ iowrite32(bt->vfrontporch, &vo->sync_generator_v_frontporch_length);
+ iowrite32(0x9900c1, &vo->error_color);
+
+ iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_LOAD_PARAM_MSK | fmt,
+ &vo->control);
+ iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK | fmt, &vo->control);
+ iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_ENABLE_MSK |
+ M00514_CONTROL_BITMAP_FLOW_CTRL_OUTPUT_ENABLE_MSK |
+ fmt, &vo->control);
+}
+
+static void cobalt_enable_input(struct cobalt_stream *s)
+{
+ struct cobalt *cobalt = s->cobalt;
+ int ch = (int)s->video_channel;
+ struct m00235_fdma_packer_regmap __iomem *packer;
+ struct v4l2_subdev_format sd_fmt_yuyv = {
+ .pad = s->pad_source,
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
+ };
+ struct v4l2_subdev_format sd_fmt_rgb = {
+ .pad = s->pad_source,
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .format.code = MEDIA_BUS_FMT_RGB888_1X24,
+ };
+
+ cobalt_dbg(1, "video_channel %d (%s, %s)\n",
+ s->video_channel,
+ s->input == 0 ? "hdmi" : "generator",
+ "YUYV");
+
+ packer = COBALT_CVI_PACKER(cobalt, ch);
+
+ /* Set up FDMA packer */
+ switch (s->pixfmt) {
+ case V4L2_PIX_FMT_YUYV:
+ iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+ (1 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+ &packer->control);
+ v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+ &sd_fmt_yuyv);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+ (2 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+ &packer->control);
+ v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+ &sd_fmt_rgb);
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
+ M00235_CONTROL_BITMAP_ENDIAN_FORMAT_MSK |
+ (3 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
+ &packer->control);
+ v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
+ &sd_fmt_rgb);
+ break;
+ }
+}
+
+static void cobalt_dma_start_streaming(struct cobalt_stream *s)
+{
+ struct cobalt *cobalt = s->cobalt;
+ int rx = s->video_channel;
+ struct m00460_evcnt_regmap __iomem *evcnt =
+ COBALT_CVI_EVCNT(cobalt, rx);
+ struct cobalt_buffer *cb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&s->irqlock, flags);
+ if (!s->is_output) {
+ iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
+ iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
+ } else {
+ struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+ COBALT_TX_BASE(cobalt);
+ u32 ctrl = ioread32(&vo->control);
+
+ ctrl &= ~(M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK |
+ M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK);
+ iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK,
+ &vo->control);
+ iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK,
+ &vo->control);
+ }
+ cb = list_first_entry(&s->bufs, struct cobalt_buffer, list);
+ omni_sg_dma_start(s, &s->dma_desc_info[cb->vb.vb2_buf.index]);
+ spin_unlock_irqrestore(&s->irqlock, flags);
+}
+
+static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct cobalt_stream *s = q->drv_priv;
+ struct cobalt *cobalt = s->cobalt;
+ struct m00233_video_measure_regmap __iomem *vmr;
+ struct m00473_freewheel_regmap __iomem *fw;
+ struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+ int rx = s->video_channel;
+ struct m00389_cvi_regmap __iomem *cvi = COBALT_CVI(cobalt, rx);
+ struct m00460_evcnt_regmap __iomem *evcnt = COBALT_CVI_EVCNT(cobalt, rx);
+ struct v4l2_bt_timings *bt = &s->timings.bt;
+ u64 tot_size;
+ u32 clk_freq;
+
+ if (s->is_audio)
+ goto done;
+ if (s->is_output) {
+ s->unstable_frame = false;
+ cobalt_enable_output(s);
+ goto done;
+ }
+
+ cobalt_enable_input(s);
+
+ fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+ vmr = COBALT_CVI_VMR(cobalt, rx);
+ clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+
+ iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
+ iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
+ iowrite32(bt->width, &cvi->frame_width);
+ iowrite32(bt->height, &cvi->frame_height);
+ tot_size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+ iowrite32(div_u64((u64)V4L2_DV_BT_FRAME_WIDTH(bt) * COBALT_CLK * 4,
+ bt->pixelclock), &vmr->hsync_timeout_val);
+ iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+ clk_freq = ioread32(&fw->clk_freq);
+ iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
+ /* The lower bound for the clock frequency is 0.5% lower as is
+ * allowed by the spec */
+ iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
+ &clkloss->test_clk_cnt_val);
+ /* will be enabled after the first frame has been received */
+ iowrite32(bt->width * bt->height, &fw->active_length);
+ iowrite32(div_u64((u64)clk_freq * tot_size, bt->pixelclock),
+ &fw->total_length);
+ iowrite32(M00233_IRQ_TRIGGERS_BITMAP_VACTIVE_AREA_MSK |
+ M00233_IRQ_TRIGGERS_BITMAP_HACTIVE_AREA_MSK,
+ &vmr->irq_triggers);
+ iowrite32(0, &cvi->control);
+ iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+
+ iowrite32(0xff, &fw->output_color);
+ iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
+ iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
+ M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK, &fw->ctrl);
+ s->unstable_frame = true;
+ s->enable_freewheel = false;
+ s->enable_cvi = false;
+ s->skip_first_frames = 0;
+
+done:
+ s->sequence = 0;
+ cobalt_dma_start_streaming(s);
+ return 0;
+}
+
+static void cobalt_dma_stop_streaming(struct cobalt_stream *s)
+{
+ struct cobalt *cobalt = s->cobalt;
+ struct sg_dma_desc_info *desc;
+ struct cobalt_buffer *cb;
+ struct list_head *p;
+ unsigned long flags;
+ int timeout_msec = 100;
+ int rx = s->video_channel;
+ struct m00460_evcnt_regmap __iomem *evcnt =
+ COBALT_CVI_EVCNT(cobalt, rx);
+
+ if (!s->is_output) {
+ iowrite32(0, &evcnt->control);
+ } else if (!s->is_audio) {
+ struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+ COBALT_TX_BASE(cobalt);
+
+ iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK, &vo->control);
+ iowrite32(0, &vo->control);
+ }
+
+ /* Try to stop the DMA engine gracefully */
+ spin_lock_irqsave(&s->irqlock, flags);
+ list_for_each(p, &s->bufs) {
+ cb = list_entry(p, struct cobalt_buffer, list);
+ desc = &s->dma_desc_info[cb->vb.vb2_buf.index];
+ /* Stop DMA after this descriptor chain */
+ descriptor_list_end_of_chain(desc);
+ }
+ spin_unlock_irqrestore(&s->irqlock, flags);
+
+ /* Wait 100 milisecond for DMA to finish, abort on timeout. */
+ if (!wait_event_timeout(s->q.done_wq, is_dma_done(s),
+ msecs_to_jiffies(timeout_msec))) {
+ omni_sg_dma_abort_channel(s);
+ pr_warn("aborted\n");
+ }
+ cobalt_write_bar0(cobalt, DMA_INTERRUPT_STATUS_REG,
+ 1 << s->dma_channel);
+}
+
+static void cobalt_stop_streaming(struct vb2_queue *q)
+{
+ struct cobalt_stream *s = q->drv_priv;
+ struct cobalt *cobalt = s->cobalt;
+ int rx = s->video_channel;
+ struct m00233_video_measure_regmap __iomem *vmr;
+ struct m00473_freewheel_regmap __iomem *fw;
+ struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+ struct cobalt_buffer *cb;
+ struct list_head *p, *safe;
+ unsigned long flags;
+
+ cobalt_dma_stop_streaming(s);
+
+ /* Return all buffers to user space */
+ spin_lock_irqsave(&s->irqlock, flags);
+ list_for_each_safe(p, safe, &s->bufs) {
+ cb = list_entry(p, struct cobalt_buffer, list);
+ list_del(&cb->list);
+ vb2_buffer_done(&cb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&s->irqlock, flags);
+
+ if (s->is_audio || s->is_output)
+ return;
+
+ fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+ vmr = COBALT_CVI_VMR(cobalt, rx);
+ clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+ iowrite32(0, &vmr->control);
+ iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
+ iowrite32(0, &fw->ctrl);
+ iowrite32(0, &clkloss->ctrl);
+}
+
+static const struct vb2_ops cobalt_qops = {
+ .queue_setup = cobalt_queue_setup,
+ .buf_init = cobalt_buf_init,
+ .buf_cleanup = cobalt_buf_cleanup,
+ .buf_prepare = cobalt_buf_prepare,
+ .buf_queue = cobalt_buf_queue,
+ .start_streaming = cobalt_start_streaming,
+ .stop_streaming = cobalt_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+/* V4L2 ioctls */
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int cobalt_cobaltc(struct cobalt *cobalt, unsigned int cmd, void *arg)
+{
+ struct v4l2_dbg_register *regs = arg;
+ void __iomem *adrs = cobalt->bar1 + regs->reg;
+
+ cobalt_info("cobalt_cobaltc: adrs = %p\n", adrs);
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ regs->size = 4;
+ if (cmd == VIDIOC_DBG_S_REGISTER)
+ iowrite32(regs->val, adrs);
+ else
+ regs->val = ioread32(adrs);
+ return 0;
+}
+
+static int cobalt_g_register(struct file *file, void *priv_fh,
+ struct v4l2_dbg_register *reg)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct cobalt *cobalt = s->cobalt;
+
+ return cobalt_cobaltc(cobalt, VIDIOC_DBG_G_REGISTER, reg);
+}
+
+static int cobalt_s_register(struct file *file, void *priv_fh,
+ const struct v4l2_dbg_register *reg)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct cobalt *cobalt = s->cobalt;
+
+ return cobalt_cobaltc(cobalt, VIDIOC_DBG_S_REGISTER,
+ (struct v4l2_dbg_register *)reg);
+}
+#endif
+
+static int cobalt_querycap(struct file *file, void *priv_fh,
+ struct v4l2_capability *vcap)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct cobalt *cobalt = s->cobalt;
+
+ strlcpy(vcap->driver, "cobalt", sizeof(vcap->driver));
+ strlcpy(vcap->card, "cobalt", sizeof(vcap->card));
+ snprintf(vcap->bus_info, sizeof(vcap->bus_info),
+ "PCIe:%s", pci_name(cobalt->pci_dev));
+ vcap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
+ if (s->is_output)
+ vcap->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
+ else
+ vcap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
+ vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS |
+ V4L2_CAP_VIDEO_CAPTURE;
+ if (cobalt->have_hsma_tx)
+ vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT;
+ return 0;
+}
+
+static void cobalt_video_input_status_show(struct cobalt_stream *s)
+{
+ struct m00389_cvi_regmap __iomem *cvi;
+ struct m00233_video_measure_regmap __iomem *vmr;
+ struct m00473_freewheel_regmap __iomem *fw;
+ struct m00479_clk_loss_detector_regmap __iomem *clkloss;
+ struct m00235_fdma_packer_regmap __iomem *packer;
+ int rx = s->video_channel;
+ struct cobalt *cobalt = s->cobalt;
+ u32 cvi_ctrl, cvi_stat;
+ u32 vmr_ctrl, vmr_stat;
+
+ cvi = COBALT_CVI(cobalt, rx);
+ vmr = COBALT_CVI_VMR(cobalt, rx);
+ fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
+ clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
+ packer = COBALT_CVI_PACKER(cobalt, rx);
+ cvi_ctrl = ioread32(&cvi->control);
+ cvi_stat = ioread32(&cvi->status);
+ vmr_ctrl = ioread32(&vmr->control);
+ vmr_stat = ioread32(&vmr->control);
+ cobalt_info("rx%d: cvi resolution: %dx%d\n", rx,
+ ioread32(&cvi->frame_width), ioread32(&cvi->frame_height));
+ cobalt_info("rx%d: cvi control: %s%s%s\n", rx,
+ (cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ?
+ "enable " : "disable ",
+ (cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
+ "HSync- " : "HSync+ ",
+ (cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
+ "VSync- " : "VSync+ ");
+ cobalt_info("rx%d: cvi status: %s%s\n", rx,
+ (cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ?
+ "lock " : "no-lock ",
+ (cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ?
+ "error " : "no-error ");
+
+ cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx,
+ (vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
+ "HSync- " : "HSync+ ",
+ (vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
+ "VSync- " : "VSync+ ",
+ (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ?
+ "enabled " : "disabled ",
+ (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ?
+ "irq-enabled " : "irq-disabled ",
+ (vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ?
+ "update-on-hsync " : "",
+ (vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ?
+ "hsync-timeout " : "",
+ (vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ?
+ "init-done" : "");
+ cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx,
+ ioread32(&vmr->irq_status) & 0xff,
+ ioread32(&vmr->irq_triggers) & 0xff);
+ cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time));
+ cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch));
+ cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area));
+ cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch));
+ cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time));
+ cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch));
+ cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area));
+ cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch));
+ cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx,
+ (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ?
+ "enabled " : "disabled ",
+ (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ?
+ "forced " : "",
+ (ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ?
+ "freewheeling " : "video-passthrough ");
+ iowrite32(0xff, &vmr->irq_status);
+ cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx,
+ (ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ?
+ "enabled " : "disabled ",
+ (ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ?
+ "clock-missing " : "found-clock ");
+ cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control));
+}
+
+static int cobalt_log_status(struct file *file, void *priv_fh)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct cobalt *cobalt = s->cobalt;
+ struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
+ COBALT_TX_BASE(cobalt);
+ u8 stat;
+
+ cobalt_info("%s", cobalt->hdl_info);
+ cobalt_info("sysctrl: %08x, sysstat: %08x\n",
+ cobalt_g_sysctrl(cobalt),
+ cobalt_g_sysstat(cobalt));
+ cobalt_info("dma channel: %d, video channel: %d\n",
+ s->dma_channel, s->video_channel);
+ cobalt_pcie_status_show(cobalt);
+ cobalt_cpld_status(cobalt);
+ cobalt_irq_log_status(cobalt);
+ v4l2_subdev_call(s->sd, core, log_status);
+ if (!s->is_output) {
+ cobalt_video_input_status_show(s);
+ return 0;
+ }
+
+ stat = ioread32(&vo->rd_status);
+
+ cobalt_info("tx: status: %s%s\n",
+ (stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ?
+ "no_data " : "",
+ (stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ?
+ "ready_buffer_full " : "");
+ cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count));
+ return 0;
+}
+
+static int cobalt_enum_dv_timings(struct file *file, void *priv_fh,
+ struct v4l2_enum_dv_timings *timings)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ if (s->input == 1) {
+ if (timings->index)
+ return -EINVAL;
+ memset(timings->reserved, 0, sizeof(timings->reserved));
+ timings->timings = cea1080p60;
+ return 0;
+ }
+ timings->pad = 0;
+ return v4l2_subdev_call(s->sd,
+ pad, enum_dv_timings, timings);
+}
+
+static int cobalt_s_dv_timings(struct file *file, void *priv_fh,
+ struct v4l2_dv_timings *timings)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ int err;
+
+ if (s->input == 1) {
+ *timings = cea1080p60;
+ return 0;
+ }
+
+ if (v4l2_match_dv_timings(timings, &s->timings, 0))
+ return 0;
+
+ if (vb2_is_busy(&s->q))
+ return -EBUSY;
+
+ err = v4l2_subdev_call(s->sd,
+ video, s_dv_timings, timings);
+ if (!err) {
+ s->timings = *timings;
+ s->width = timings->bt.width;
+ s->height = timings->bt.height;
+ s->stride = timings->bt.width * s->bpp;
+ }
+ return err;
+}
+
+static int cobalt_g_dv_timings(struct file *file, void *priv_fh,
+ struct v4l2_dv_timings *timings)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ if (s->input == 1) {
+ *timings = cea1080p60;
+ return 0;
+ }
+ return v4l2_subdev_call(s->sd,
+ video, g_dv_timings, timings);
+}
+
+static int cobalt_query_dv_timings(struct file *file, void *priv_fh,
+ struct v4l2_dv_timings *timings)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ if (s->input == 1) {
+ *timings = cea1080p60;
+ return 0;
+ }
+ return v4l2_subdev_call(s->sd,
+ video, query_dv_timings, timings);
+}
+
+static int cobalt_dv_timings_cap(struct file *file, void *priv_fh,
+ struct v4l2_dv_timings_cap *cap)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ cap->pad = 0;
+ return v4l2_subdev_call(s->sd,
+ pad, dv_timings_cap, cap);
+}
+
+static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh,
+ struct v4l2_fmtdesc *f)
+{
+ switch (f->index) {
+ case 0:
+ strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
+ f->pixelformat = V4L2_PIX_FMT_YUYV;
+ break;
+ case 1:
+ strlcpy(f->description, "RGB24", sizeof(f->description));
+ f->pixelformat = V4L2_PIX_FMT_RGB24;
+ break;
+ case 2:
+ strlcpy(f->description, "RGB32", sizeof(f->description));
+ f->pixelformat = V4L2_PIX_FMT_BGR32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct v4l2_subdev_format sd_fmt;
+
+ pix->width = s->width;
+ pix->height = s->height;
+ pix->bytesperline = s->stride;
+ pix->field = V4L2_FIELD_NONE;
+
+ if (s->input == 1) {
+ pix->colorspace = V4L2_COLORSPACE_SRGB;
+ } else {
+ sd_fmt.pad = s->pad_source;
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
+ v4l2_fill_pix_format(pix, &sd_fmt.format);
+ }
+
+ pix->pixelformat = s->pixfmt;
+ pix->sizeimage = pix->bytesperline * pix->height;
+
+ return 0;
+}
+
+static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct v4l2_subdev_format sd_fmt;
+
+ /* Check for min (QCIF) and max (Full HD) size */
+ if ((pix->width < 176) || (pix->height < 144)) {
+ pix->width = 176;
+ pix->height = 144;
+ }
+
+ if ((pix->width > 1920) || (pix->height > 1080)) {
+ pix->width = 1920;
+ pix->height = 1080;
+ }
+
+ /* Make width multiple of 4 */
+ pix->width &= ~0x3;
+
+ /* Make height multiple of 2 */
+ pix->height &= ~0x1;
+
+ if (s->input == 1) {
+ /* Generator => fixed format only */
+ pix->width = 1920;
+ pix->height = 1080;
+ pix->colorspace = V4L2_COLORSPACE_SRGB;
+ } else {
+ sd_fmt.pad = s->pad_source;
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
+ v4l2_fill_pix_format(pix, &sd_fmt.format);
+ }
+
+ switch (pix->pixelformat) {
+ case V4L2_PIX_FMT_YUYV:
+ default:
+ pix->bytesperline = max(pix->bytesperline & ~0x3,
+ pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
+ pix->pixelformat = V4L2_PIX_FMT_YUYV;
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ pix->bytesperline = max(pix->bytesperline & ~0x3,
+ pix->width * COBALT_BYTES_PER_PIXEL_RGB24);
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ pix->bytesperline = max(pix->bytesperline & ~0x3,
+ pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
+ break;
+ }
+
+ pix->sizeimage = pix->bytesperline * pix->height;
+ pix->field = V4L2_FIELD_NONE;
+ pix->priv = 0;
+
+ return 0;
+}
+
+static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+
+ if (vb2_is_busy(&s->q))
+ return -EBUSY;
+
+ if (cobalt_try_fmt_vid_cap(file, priv_fh, f))
+ return -EINVAL;
+
+ s->width = pix->width;
+ s->height = pix->height;
+ s->stride = pix->bytesperline;
+ switch (pix->pixelformat) {
+ case V4L2_PIX_FMT_YUYV:
+ s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ s->bpp = COBALT_BYTES_PER_PIXEL_RGB24;
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+ break;
+ default:
+ return -EINVAL;
+ }
+ s->pixfmt = pix->pixelformat;
+ cobalt_enable_input(s);
+
+ return 0;
+}
+
+static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+
+ /* Check for min (QCIF) and max (Full HD) size */
+ if ((pix->width < 176) || (pix->height < 144)) {
+ pix->width = 176;
+ pix->height = 144;
+ }
+
+ if ((pix->width > 1920) || (pix->height > 1080)) {
+ pix->width = 1920;
+ pix->height = 1080;
+ }
+
+ /* Make width multiple of 4 */
+ pix->width &= ~0x3;
+
+ /* Make height multiple of 2 */
+ pix->height &= ~0x1;
+
+ switch (pix->pixelformat) {
+ case V4L2_PIX_FMT_YUYV:
+ default:
+ pix->bytesperline = max(pix->bytesperline & ~0x3,
+ pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
+ pix->pixelformat = V4L2_PIX_FMT_YUYV;
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ pix->bytesperline = max(pix->bytesperline & ~0x3,
+ pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
+ break;
+ }
+
+ pix->sizeimage = pix->bytesperline * pix->height;
+ pix->field = V4L2_FIELD_NONE;
+
+ return 0;
+}
+
+static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+
+ pix->width = s->width;
+ pix->height = s->height;
+ pix->bytesperline = s->stride;
+ pix->field = V4L2_FIELD_NONE;
+ pix->pixelformat = s->pixfmt;
+ pix->colorspace = s->colorspace;
+ pix->xfer_func = s->xfer_func;
+ pix->ycbcr_enc = s->ycbcr_enc;
+ pix->quantization = s->quantization;
+ pix->sizeimage = pix->bytesperline * pix->height;
+
+ return 0;
+}
+
+static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh,
+ struct v4l2_fmtdesc *f)
+{
+ switch (f->index) {
+ case 0:
+ strlcpy(f->description, "YUV 4:2:2", sizeof(f->description));
+ f->pixelformat = V4L2_PIX_FMT_YUYV;
+ break;
+ case 1:
+ strlcpy(f->description, "RGB32", sizeof(f->description));
+ f->pixelformat = V4L2_PIX_FMT_BGR32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh,
+ struct v4l2_format *f)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct v4l2_subdev_format sd_fmt = { 0 };
+ u32 code;
+
+ if (cobalt_try_fmt_vid_out(file, priv_fh, f))
+ return -EINVAL;
+
+ if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt ||
+ pix->width != s->width || pix->height != s->height ||
+ pix->bytesperline != s->stride))
+ return -EBUSY;
+
+ switch (pix->pixelformat) {
+ case V4L2_PIX_FMT_YUYV:
+ s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+ code = MEDIA_BUS_FMT_UYVY8_1X16;
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+ code = MEDIA_BUS_FMT_RGB888_1X24;
+ break;
+ default:
+ return -EINVAL;
+ }
+ s->width = pix->width;
+ s->height = pix->height;
+ s->stride = pix->bytesperline;
+ s->pixfmt = pix->pixelformat;
+ s->colorspace = pix->colorspace;
+ s->xfer_func = pix->xfer_func;
+ s->ycbcr_enc = pix->ycbcr_enc;
+ s->quantization = pix->quantization;
+ sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ v4l2_fill_mbus_format(&sd_fmt.format, pix, code);
+ v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
+ return 0;
+}
+
+static int cobalt_enum_input(struct file *file, void *priv_fh,
+ struct v4l2_input *inp)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ if (inp->index > 1)
+ return -EINVAL;
+ if (inp->index == 0)
+ snprintf(inp->name, sizeof(inp->name),
+ "HDMI-%d", s->video_channel);
+ else
+ snprintf(inp->name, sizeof(inp->name),
+ "Generator-%d", s->video_channel);
+ inp->type = V4L2_INPUT_TYPE_CAMERA;
+ inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+ if (inp->index == 1)
+ return 0;
+ return v4l2_subdev_call(s->sd,
+ video, g_input_status, &inp->status);
+}
+
+static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ *i = s->input;
+ return 0;
+}
+
+static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+
+ if (i >= 2)
+ return -EINVAL;
+ if (vb2_is_busy(&s->q))
+ return -EBUSY;
+ s->input = i;
+
+ cobalt_enable_input(s);
+
+ if (s->input == 1) /* Test Pattern Generator */
+ return 0;
+
+ return v4l2_subdev_call(s->sd, video, s_routing,
+ ADV76XX_PAD_HDMI_PORT_A, 0, 0);
+}
+
+static int cobalt_enum_output(struct file *file, void *priv_fh,
+ struct v4l2_output *out)
+{
+ if (out->index)
+ return -EINVAL;
+ snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index);
+ out->type = V4L2_OUTPUT_TYPE_ANALOG;
+ out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
+ return 0;
+}
+
+static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+
+static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i)
+{
+ return i ? -EINVAL : 0;
+}
+
+static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ u32 pad = edid->pad;
+ int ret;
+
+ if (edid->pad >= (s->is_output ? 1 : 2))
+ return -EINVAL;
+ edid->pad = 0;
+ ret = v4l2_subdev_call(s->sd, pad, get_edid, edid);
+ edid->pad = pad;
+ return ret;
+}
+
+static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+ struct cobalt_stream *s = video_drvdata(file);
+ u32 pad = edid->pad;
+ int ret;
+
+ if (edid->pad >= 2)
+ return -EINVAL;
+ edid->pad = 0;
+ ret = v4l2_subdev_call(s->sd, pad, set_edid, edid);
+ edid->pad = pad;
+ return ret;
+}
+
+static int cobalt_subscribe_event(struct v4l2_fh *fh,
+ const struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+ case V4L2_EVENT_SOURCE_CHANGE:
+ return v4l2_event_subscribe(fh, sub, 4, NULL);
+ }
+ return v4l2_ctrl_subscribe_event(fh, sub);
+}
+
+static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+ if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ a->parm.capture.timeperframe.numerator = 1;
+ a->parm.capture.timeperframe.denominator = 60;
+ a->parm.capture.readbuffers = 3;
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
+ .vidioc_querycap = cobalt_querycap,
+ .vidioc_g_parm = cobalt_g_parm,
+ .vidioc_log_status = cobalt_log_status,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_enum_input = cobalt_enum_input,
+ .vidioc_g_input = cobalt_g_input,
+ .vidioc_s_input = cobalt_s_input,
+ .vidioc_enum_fmt_vid_cap = cobalt_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = cobalt_g_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = cobalt_s_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = cobalt_try_fmt_vid_cap,
+ .vidioc_enum_output = cobalt_enum_output,
+ .vidioc_g_output = cobalt_g_output,
+ .vidioc_s_output = cobalt_s_output,
+ .vidioc_enum_fmt_vid_out = cobalt_enum_fmt_vid_out,
+ .vidioc_g_fmt_vid_out = cobalt_g_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = cobalt_s_fmt_vid_out,
+ .vidioc_try_fmt_vid_out = cobalt_try_fmt_vid_out,
+ .vidioc_s_dv_timings = cobalt_s_dv_timings,
+ .vidioc_g_dv_timings = cobalt_g_dv_timings,
+ .vidioc_query_dv_timings = cobalt_query_dv_timings,
+ .vidioc_enum_dv_timings = cobalt_enum_dv_timings,
+ .vidioc_dv_timings_cap = cobalt_dv_timings_cap,
+ .vidioc_g_edid = cobalt_g_edid,
+ .vidioc_s_edid = cobalt_s_edid,
+ .vidioc_subscribe_event = cobalt_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = cobalt_g_register,
+ .vidioc_s_register = cobalt_s_register,
+#endif
+};
+
+static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = {
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = cobalt_g_register,
+ .vidioc_s_register = cobalt_s_register,
+#endif
+};
+
+/* Register device nodes */
+
+static const struct v4l2_file_operations cobalt_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .unlocked_ioctl = video_ioctl2,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+ .read = vb2_fop_read,
+};
+
+static const struct v4l2_file_operations cobalt_out_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .unlocked_ioctl = video_ioctl2,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+ .write = vb2_fop_write,
+};
+
+static const struct v4l2_file_operations cobalt_empty_fops = {
+ .owner = THIS_MODULE,
+ .open = v4l2_fh_open,
+ .unlocked_ioctl = video_ioctl2,
+ .release = v4l2_fh_release,
+};
+
+static int cobalt_node_register(struct cobalt *cobalt, int node)
+{
+ static const struct v4l2_dv_timings dv1080p60 =
+ V4L2_DV_BT_CEA_1920X1080P60;
+ struct cobalt_stream *s = cobalt->streams + node;
+ struct video_device *vdev = &s->vdev;
+ struct vb2_queue *q = &s->q;
+ int ret;
+
+ mutex_init(&s->lock);
+ spin_lock_init(&s->irqlock);
+
+ snprintf(vdev->name, sizeof(vdev->name),
+ "%s-%d", cobalt->v4l2_dev.name, node);
+ s->width = 1920;
+ /* Audio frames are just 4 lines of 1920 bytes */
+ s->height = s->is_audio ? 4 : 1080;
+
+ if (s->is_audio) {
+ s->bpp = 1;
+ s->pixfmt = V4L2_PIX_FMT_GREY;
+ } else if (s->is_output) {
+ s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
+ s->pixfmt = V4L2_PIX_FMT_BGR32;
+ } else {
+ s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
+ s->pixfmt = V4L2_PIX_FMT_YUYV;
+ }
+ s->colorspace = V4L2_COLORSPACE_SRGB;
+ s->stride = s->width * s->bpp;
+
+ if (!s->is_audio) {
+ if (s->is_dummy)
+ cobalt_warn("Setting up dummy video node %d\n", node);
+ vdev->v4l2_dev = &cobalt->v4l2_dev;
+ if (s->is_dummy)
+ vdev->fops = &cobalt_empty_fops;
+ else
+ vdev->fops = s->is_output ? &cobalt_out_fops :
+ &cobalt_fops;
+ vdev->release = video_device_release_empty;
+ vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX;
+ vdev->lock = &s->lock;
+ if (s->sd)
+ vdev->ctrl_handler = s->sd->ctrl_handler;
+ s->timings = dv1080p60;
+ v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings);
+ if (!s->is_output && s->sd)
+ cobalt_enable_input(s);
+ vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops :
+ &cobalt_ioctl_ops;
+ }
+
+ INIT_LIST_HEAD(&s->bufs);
+ q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
+ V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ;
+ q->drv_priv = s;
+ q->buf_struct_size = sizeof(struct cobalt_buffer);
+ q->ops = &cobalt_qops;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->min_buffers_needed = 2;
+ q->lock = &s->lock;
+ vdev->queue = q;
+
+ video_set_drvdata(vdev, s);
+ ret = vb2_queue_init(q);
+ if (!s->is_audio && ret == 0)
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
+ else if (!s->is_dummy)
+ ret = cobalt_alsa_init(s);
+
+ if (ret < 0) {
+ if (!s->is_audio)
+ cobalt_err("couldn't register v4l2 device node %d\n",
+ node);
+ return ret;
+ }
+ cobalt_info("registered node %d\n", node);
+ return 0;
+}
+
+/* Initialize v4l2 variables and register v4l2 devices */
+int cobalt_nodes_register(struct cobalt *cobalt)
+{
+ int node, ret;
+
+ /* Setup V4L2 Devices */
+ for (node = 0; node < COBALT_NUM_STREAMS; node++) {
+ ret = cobalt_node_register(cobalt, node);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+/* Unregister v4l2 devices */
+void cobalt_nodes_unregister(struct cobalt *cobalt)
+{
+ int node;
+
+ /* Teardown all streams */
+ for (node = 0; node < COBALT_NUM_STREAMS; node++) {
+ struct cobalt_stream *s = cobalt->streams + node;
+ struct video_device *vdev = &s->vdev;
+
+ if (!s->is_audio)
+ video_unregister_device(vdev);
+ else if (!s->is_dummy)
+ cobalt_alsa_exit(s);
+ }
+}
Code Review / kvmfornfv.git / blobdiff