diff options
Diffstat (limited to 'drivers/media/platform/blackfin')
| -rw-r--r-- | drivers/media/platform/blackfin/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/media/platform/blackfin/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/platform/blackfin/bfin_capture.c | 989 | ||||
| -rw-r--r-- | drivers/media/platform/blackfin/ppi.c | 361 |
4 files changed, 0 insertions, 1368 deletions
diff --git a/drivers/media/platform/blackfin/Kconfig b/drivers/media/platform/blackfin/Kconfig deleted file mode 100644 index 68fa90151b8f..000000000000 --- a/drivers/media/platform/blackfin/Kconfig +++ /dev/null @@ -1,16 +0,0 @@ -config VIDEO_BLACKFIN_CAPTURE - tristate "Blackfin Video Capture Driver" - depends on VIDEO_V4L2 && BLACKFIN && I2C - depends on HAS_DMA - select VIDEOBUF2_DMA_CONTIG - help - V4L2 bridge driver for Blackfin video capture device. - Choose PPI or EPPI as its interface. - - To compile this driver as a module, choose M here: the - module will be called bfin_capture. - -config VIDEO_BLACKFIN_PPI - tristate - depends on VIDEO_BLACKFIN_CAPTURE - default VIDEO_BLACKFIN_CAPTURE diff --git a/drivers/media/platform/blackfin/Makefile b/drivers/media/platform/blackfin/Makefile deleted file mode 100644 index 30421bc23080..000000000000 --- a/drivers/media/platform/blackfin/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_VIDEO_BLACKFIN_CAPTURE) += bfin_capture.o -obj-$(CONFIG_VIDEO_BLACKFIN_PPI) += ppi.o diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c deleted file mode 100644 index 41f179117fb0..000000000000 --- a/drivers/media/platform/blackfin/bfin_capture.c +++ /dev/null @@ -1,989 +0,0 @@ -/* - * Analog Devices video capture driver - * - * Copyright (c) 2011 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/completion.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/i2c.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/time.h> -#include <linux/types.h> - -#include <media/v4l2-common.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include <media/videobuf2-dma-contig.h> - -#include <asm/dma.h> - -#include <media/blackfin/bfin_capture.h> -#include <media/blackfin/ppi.h> - -#define CAPTURE_DRV_NAME "bfin_capture" - -struct bcap_format { - char *desc; - u32 pixelformat; - u32 mbus_code; - int bpp; /* bits per pixel */ - int dlen; /* data length for ppi in bits */ -}; - -struct bcap_buffer { - struct vb2_v4l2_buffer vb; - struct list_head list; -}; - -struct bcap_device { - /* capture device instance */ - struct v4l2_device v4l2_dev; - /* v4l2 control handler */ - struct v4l2_ctrl_handler ctrl_handler; - /* device node data */ - struct video_device video_dev; - /* sub device instance */ - struct v4l2_subdev *sd; - /* capture config */ - struct bfin_capture_config *cfg; - /* ppi interface */ - struct ppi_if *ppi; - /* current input */ - unsigned int cur_input; - /* current selected standard */ - v4l2_std_id std; - /* current selected dv_timings */ - struct v4l2_dv_timings dv_timings; - /* used to store pixel format */ - struct v4l2_pix_format fmt; - /* bits per pixel*/ - int bpp; - /* data length for ppi in bits */ - int dlen; - /* used to store sensor supported format */ - struct bcap_format *sensor_formats; - /* number of sensor formats array */ - int num_sensor_formats; - /* pointing to current video buffer */ - struct bcap_buffer *cur_frm; - /* buffer queue used in videobuf2 */ - struct vb2_queue buffer_queue; - /* queue of filled frames */ - struct list_head dma_queue; - /* used in videobuf2 callback */ - spinlock_t lock; - /* used to access capture device */ - struct mutex mutex; - /* used to wait ppi to complete one transfer */ - struct completion comp; - /* prepare to stop */ - bool stop; - /* vb2 buffer sequence counter */ - unsigned sequence; -}; - -static const struct bcap_format bcap_formats[] = { - { - .desc = "YCbCr 4:2:2 Interleaved UYVY", - .pixelformat = V4L2_PIX_FMT_UYVY, - .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, - .bpp = 16, - .dlen = 8, - }, - { - .desc = "YCbCr 4:2:2 Interleaved YUYV", - .pixelformat = V4L2_PIX_FMT_YUYV, - .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 16, - .dlen = 8, - }, - { - .desc = "YCbCr 4:2:2 Interleaved UYVY", - .pixelformat = V4L2_PIX_FMT_UYVY, - .mbus_code = MEDIA_BUS_FMT_UYVY8_1X16, - .bpp = 16, - .dlen = 16, - }, - { - .desc = "RGB 565", - .pixelformat = V4L2_PIX_FMT_RGB565, - .mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE, - .bpp = 16, - .dlen = 8, - }, - { - .desc = "RGB 444", - .pixelformat = V4L2_PIX_FMT_RGB444, - .mbus_code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE, - .bpp = 16, - .dlen = 8, - }, - -}; -#define BCAP_MAX_FMTS ARRAY_SIZE(bcap_formats) - -static irqreturn_t bcap_isr(int irq, void *dev_id); - -static struct bcap_buffer *to_bcap_vb(struct vb2_v4l2_buffer *vb) -{ - return container_of(vb, struct bcap_buffer, vb); -} - -static int bcap_init_sensor_formats(struct bcap_device *bcap_dev) -{ - struct v4l2_subdev_mbus_code_enum code = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - struct bcap_format *sf; - unsigned int num_formats = 0; - int i, j; - - while (!v4l2_subdev_call(bcap_dev->sd, pad, - enum_mbus_code, NULL, &code)) { - num_formats++; - code.index++; - } - if (!num_formats) - return -ENXIO; - - sf = kcalloc(num_formats, sizeof(*sf), GFP_KERNEL); - if (!sf) - return -ENOMEM; - - for (i = 0; i < num_formats; i++) { - code.index = i; - v4l2_subdev_call(bcap_dev->sd, pad, - enum_mbus_code, NULL, &code); - for (j = 0; j < BCAP_MAX_FMTS; j++) - if (code.code == bcap_formats[j].mbus_code) - break; - if (j == BCAP_MAX_FMTS) { - /* we don't allow this sensor working with our bridge */ - kfree(sf); - return -EINVAL; - } - sf[i] = bcap_formats[j]; - } - bcap_dev->sensor_formats = sf; - bcap_dev->num_sensor_formats = num_formats; - return 0; -} - -static void bcap_free_sensor_formats(struct bcap_device *bcap_dev) -{ - bcap_dev->num_sensor_formats = 0; - kfree(bcap_dev->sensor_formats); - bcap_dev->sensor_formats = NULL; -} - -static int bcap_queue_setup(struct vb2_queue *vq, - unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], struct device *alloc_devs[]) -{ - struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); - - if (vq->num_buffers + *nbuffers < 2) - *nbuffers = 2; - - if (*nplanes) - return sizes[0] < bcap_dev->fmt.sizeimage ? -EINVAL : 0; - - *nplanes = 1; - sizes[0] = bcap_dev->fmt.sizeimage; - - return 0; -} - -static int bcap_buffer_prepare(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); - unsigned long size = bcap_dev->fmt.sizeimage; - - if (vb2_plane_size(vb, 0) < size) { - v4l2_err(&bcap_dev->v4l2_dev, "buffer too small (%lu < %lu)\n", - vb2_plane_size(vb, 0), size); - return -EINVAL; - } - vb2_set_plane_payload(vb, 0, size); - - vbuf->field = bcap_dev->fmt.field; - - return 0; -} - -static void bcap_buffer_queue(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); - struct bcap_buffer *buf = to_bcap_vb(vbuf); - unsigned long flags; - - spin_lock_irqsave(&bcap_dev->lock, flags); - list_add_tail(&buf->list, &bcap_dev->dma_queue); - spin_unlock_irqrestore(&bcap_dev->lock, flags); -} - -static void bcap_buffer_cleanup(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct bcap_device *bcap_dev = vb2_get_drv_priv(vb->vb2_queue); - struct bcap_buffer *buf = to_bcap_vb(vbuf); - unsigned long flags; - - spin_lock_irqsave(&bcap_dev->lock, flags); - list_del_init(&buf->list); - spin_unlock_irqrestore(&bcap_dev->lock, flags); -} - -static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); - struct ppi_if *ppi = bcap_dev->ppi; - struct bcap_buffer *buf, *tmp; - struct ppi_params params; - dma_addr_t addr; - int ret; - - /* enable streamon on the sub device */ - ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); - if (ret && (ret != -ENOIOCTLCMD)) { - v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); - goto err; - } - - /* set ppi params */ - params.width = bcap_dev->fmt.width; - params.height = bcap_dev->fmt.height; - params.bpp = bcap_dev->bpp; - params.dlen = bcap_dev->dlen; - params.ppi_control = bcap_dev->cfg->ppi_control; - params.int_mask = bcap_dev->cfg->int_mask; - if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities - & V4L2_IN_CAP_DV_TIMINGS) { - struct v4l2_bt_timings *bt = &bcap_dev->dv_timings.bt; - - params.hdelay = bt->hsync + bt->hbackporch; - params.vdelay = bt->vsync + bt->vbackporch; - params.line = V4L2_DV_BT_FRAME_WIDTH(bt); - params.frame = V4L2_DV_BT_FRAME_HEIGHT(bt); - } else if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities - & V4L2_IN_CAP_STD) { - params.hdelay = 0; - params.vdelay = 0; - if (bcap_dev->std & V4L2_STD_525_60) { - params.line = 858; - params.frame = 525; - } else { - params.line = 864; - params.frame = 625; - } - } else { - params.hdelay = 0; - params.vdelay = 0; - params.line = params.width + bcap_dev->cfg->blank_pixels; - params.frame = params.height; - } - ret = ppi->ops->set_params(ppi, ¶ms); - if (ret < 0) { - v4l2_err(&bcap_dev->v4l2_dev, - "Error in setting ppi params\n"); - goto err; - } - - /* attach ppi DMA irq handler */ - ret = ppi->ops->attach_irq(ppi, bcap_isr); - if (ret < 0) { - v4l2_err(&bcap_dev->v4l2_dev, - "Error in attaching interrupt handler\n"); - goto err; - } - - bcap_dev->sequence = 0; - - reinit_completion(&bcap_dev->comp); - bcap_dev->stop = false; - - /* get the next frame from the dma queue */ - bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, - struct bcap_buffer, list); - /* remove buffer from the dma queue */ - list_del_init(&bcap_dev->cur_frm->list); - addr = vb2_dma_contig_plane_dma_addr(&bcap_dev->cur_frm->vb.vb2_buf, - 0); - /* update DMA address */ - ppi->ops->update_addr(ppi, (unsigned long)addr); - /* enable ppi */ - ppi->ops->start(ppi); - - return 0; - -err: - list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { - list_del(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); - } - - return ret; -} - -static void bcap_stop_streaming(struct vb2_queue *vq) -{ - struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); - struct ppi_if *ppi = bcap_dev->ppi; - int ret; - - bcap_dev->stop = true; - wait_for_completion(&bcap_dev->comp); - ppi->ops->stop(ppi); - ppi->ops->detach_irq(ppi); - ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 0); - if (ret && (ret != -ENOIOCTLCMD)) - v4l2_err(&bcap_dev->v4l2_dev, - "stream off failed in subdev\n"); - - /* release all active buffers */ - if (bcap_dev->cur_frm) - vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, - VB2_BUF_STATE_ERROR); - - while (!list_empty(&bcap_dev->dma_queue)) { - bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, - struct bcap_buffer, list); - list_del_init(&bcap_dev->cur_frm->list); - vb2_buffer_done(&bcap_dev->cur_frm->vb.vb2_buf, - VB2_BUF_STATE_ERROR); - } -} - -static const struct vb2_ops bcap_video_qops = { - .queue_setup = bcap_queue_setup, - .buf_prepare = bcap_buffer_prepare, - .buf_cleanup = bcap_buffer_cleanup, - .buf_queue = bcap_buffer_queue, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, - .start_streaming = bcap_start_streaming, - .stop_streaming = bcap_stop_streaming, -}; - -static irqreturn_t bcap_isr(int irq, void *dev_id) -{ - struct ppi_if *ppi = dev_id; - struct bcap_device *bcap_dev = ppi->priv; - struct vb2_v4l2_buffer *vbuf = &bcap_dev->cur_frm->vb; - struct vb2_buffer *vb = &vbuf->vb2_buf; - dma_addr_t addr; - - spin_lock(&bcap_dev->lock); - - if (!list_empty(&bcap_dev->dma_queue)) { - vb->timestamp = ktime_get_ns(); - if (ppi->err) { - vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); - ppi->err = false; - } else { - vbuf->sequence = bcap_dev->sequence++; - vb2_buffer_done(vb, VB2_BUF_STATE_DONE); - } - bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next, - struct bcap_buffer, list); - list_del_init(&bcap_dev->cur_frm->list); - } else { - /* clear error flag, we will get a new frame */ - if (ppi->err) - ppi->err = false; - } - - ppi->ops->stop(ppi); - - if (bcap_dev->stop) { - complete(&bcap_dev->comp); - } else { - addr = vb2_dma_contig_plane_dma_addr( - &bcap_dev->cur_frm->vb.vb2_buf, 0); - ppi->ops->update_addr(ppi, (unsigned long)addr); - ppi->ops->start(ppi); - } - - spin_unlock(&bcap_dev->lock); - - return IRQ_HANDLED; -} - -static int bcap_querystd(struct file *file, void *priv, v4l2_std_id *std) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_STD)) - return -ENODATA; - - return v4l2_subdev_call(bcap_dev->sd, video, querystd, std); -} - -static int bcap_g_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_STD)) - return -ENODATA; - - *std = bcap_dev->std; - return 0; -} - -static int bcap_s_std(struct file *file, void *priv, v4l2_std_id std) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - int ret; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_STD)) - return -ENODATA; - - if (vb2_is_busy(&bcap_dev->buffer_queue)) - return -EBUSY; - - ret = v4l2_subdev_call(bcap_dev->sd, video, s_std, std); - if (ret < 0) - return ret; - - bcap_dev->std = std; - return 0; -} - -static int bcap_enum_dv_timings(struct file *file, void *priv, - struct v4l2_enum_dv_timings *timings) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) - return -ENODATA; - - timings->pad = 0; - - return v4l2_subdev_call(bcap_dev->sd, pad, - enum_dv_timings, timings); -} - -static int bcap_query_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) - return -ENODATA; - - return v4l2_subdev_call(bcap_dev->sd, video, - query_dv_timings, timings); -} - -static int bcap_g_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) - return -ENODATA; - - *timings = bcap_dev->dv_timings; - return 0; -} - -static int bcap_s_dv_timings(struct file *file, void *priv, - struct v4l2_dv_timings *timings) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_input input; - int ret; - - input = bcap_dev->cfg->inputs[bcap_dev->cur_input]; - if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS)) - return -ENODATA; - - if (vb2_is_busy(&bcap_dev->buffer_queue)) - return -EBUSY; - - ret = v4l2_subdev_call(bcap_dev->sd, video, s_dv_timings, timings); - if (ret < 0) - return ret; - - bcap_dev->dv_timings = *timings; - return 0; -} - -static int bcap_enum_input(struct file *file, void *priv, - struct v4l2_input *input) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct bfin_capture_config *config = bcap_dev->cfg; - int ret; - u32 status; - - if (input->index >= config->num_inputs) - return -EINVAL; - - *input = config->inputs[input->index]; - /* get input status */ - ret = v4l2_subdev_call(bcap_dev->sd, video, g_input_status, &status); - if (!ret) - input->status = status; - return 0; -} - -static int bcap_g_input(struct file *file, void *priv, unsigned int *index) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - - *index = bcap_dev->cur_input; - return 0; -} - -static int bcap_s_input(struct file *file, void *priv, unsigned int index) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct bfin_capture_config *config = bcap_dev->cfg; - struct bcap_route *route; - int ret; - - if (vb2_is_busy(&bcap_dev->buffer_queue)) - return -EBUSY; - - if (index >= config->num_inputs) - return -EINVAL; - - route = &config->routes[index]; - ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, - route->input, route->output, 0); - if ((ret < 0) && (ret != -ENOIOCTLCMD)) { - v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); - return ret; - } - bcap_dev->cur_input = index; - /* if this route has specific config, update ppi control */ - if (route->ppi_control) - config->ppi_control = route->ppi_control; - return 0; -} - -static int bcap_try_format(struct bcap_device *bcap, - struct v4l2_pix_format *pixfmt, - struct bcap_format *bcap_fmt) -{ - struct bcap_format *sf = bcap->sensor_formats; - struct bcap_format *fmt = NULL; - struct v4l2_subdev_pad_config pad_cfg; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_TRY, - }; - int ret, i; - - for (i = 0; i < bcap->num_sensor_formats; i++) { - fmt = &sf[i]; - if (pixfmt->pixelformat == fmt->pixelformat) - break; - } - if (i == bcap->num_sensor_formats) - fmt = &sf[0]; - - v4l2_fill_mbus_format(&format.format, pixfmt, fmt->mbus_code); - ret = v4l2_subdev_call(bcap->sd, pad, set_fmt, &pad_cfg, - &format); - if (ret < 0) - return ret; - v4l2_fill_pix_format(pixfmt, &format.format); - if (bcap_fmt) { - for (i = 0; i < bcap->num_sensor_formats; i++) { - fmt = &sf[i]; - if (format.format.code == fmt->mbus_code) - break; - } - *bcap_fmt = *fmt; - } - pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8; - pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; - return 0; -} - -static int bcap_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *fmt) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct bcap_format *sf = bcap_dev->sensor_formats; - - if (fmt->index >= bcap_dev->num_sensor_formats) - return -EINVAL; - - fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - strlcpy(fmt->description, - sf[fmt->index].desc, - sizeof(fmt->description)); - fmt->pixelformat = sf[fmt->index].pixelformat; - return 0; -} - -static int bcap_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - - return bcap_try_format(bcap_dev, pixfmt, NULL); -} - -static int bcap_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - - fmt->fmt.pix = bcap_dev->fmt; - return 0; -} - -static int bcap_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - struct bcap_format bcap_fmt; - struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - int ret; - - if (vb2_is_busy(&bcap_dev->buffer_queue)) - return -EBUSY; - - /* see if format works */ - ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); - if (ret < 0) - return ret; - - v4l2_fill_mbus_format(&format.format, pixfmt, bcap_fmt.mbus_code); - ret = v4l2_subdev_call(bcap_dev->sd, pad, set_fmt, NULL, &format); - if (ret < 0) - return ret; - bcap_dev->fmt = *pixfmt; - bcap_dev->bpp = bcap_fmt.bpp; - bcap_dev->dlen = bcap_fmt.dlen; - return 0; -} - -static int bcap_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - - cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; - strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); - strlcpy(cap->bus_info, "Blackfin Platform", sizeof(cap->bus_info)); - strlcpy(cap->card, bcap_dev->cfg->card_name, sizeof(cap->card)); - return 0; -} - -static int bcap_g_parm(struct file *file, void *fh, - struct v4l2_streamparm *a) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return v4l2_subdev_call(bcap_dev->sd, video, g_parm, a); -} - -static int bcap_s_parm(struct file *file, void *fh, - struct v4l2_streamparm *a) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return v4l2_subdev_call(bcap_dev->sd, video, s_parm, a); -} - -static int bcap_log_status(struct file *file, void *priv) -{ - struct bcap_device *bcap_dev = video_drvdata(file); - /* status for sub devices */ - v4l2_device_call_all(&bcap_dev->v4l2_dev, 0, core, log_status); - return 0; -} - -static const struct v4l2_ioctl_ops bcap_ioctl_ops = { - .vidioc_querycap = bcap_querycap, - .vidioc_g_fmt_vid_cap = bcap_g_fmt_vid_cap, - .vidioc_enum_fmt_vid_cap = bcap_enum_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = bcap_s_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = bcap_try_fmt_vid_cap, - .vidioc_enum_input = bcap_enum_input, - .vidioc_g_input = bcap_g_input, - .vidioc_s_input = bcap_s_input, - .vidioc_querystd = bcap_querystd, - .vidioc_s_std = bcap_s_std, - .vidioc_g_std = bcap_g_std, - .vidioc_s_dv_timings = bcap_s_dv_timings, - .vidioc_g_dv_timings = bcap_g_dv_timings, - .vidioc_query_dv_timings = bcap_query_dv_timings, - .vidioc_enum_dv_timings = bcap_enum_dv_timings, - .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, - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - .vidioc_g_parm = bcap_g_parm, - .vidioc_s_parm = bcap_s_parm, - .vidioc_log_status = bcap_log_status, -}; - -static const struct v4l2_file_operations bcap_fops = { - .owner = THIS_MODULE, - .open = v4l2_fh_open, - .release = vb2_fop_release, - .unlocked_ioctl = video_ioctl2, - .mmap = vb2_fop_mmap, -#ifndef CONFIG_MMU - .get_unmapped_area = vb2_fop_get_unmapped_area, -#endif - .poll = vb2_fop_poll -}; - -static int bcap_probe(struct platform_device *pdev) -{ - struct bcap_device *bcap_dev; - struct video_device *vfd; - struct i2c_adapter *i2c_adap; - struct bfin_capture_config *config; - struct vb2_queue *q; - struct bcap_route *route; - int ret; - - config = pdev->dev.platform_data; - if (!config || !config->num_inputs) { - v4l2_err(pdev->dev.driver, "Unable to get board config\n"); - return -ENODEV; - } - - bcap_dev = kzalloc(sizeof(*bcap_dev), GFP_KERNEL); - if (!bcap_dev) - return -ENOMEM; - - bcap_dev->cfg = config; - - bcap_dev->ppi = ppi_create_instance(pdev, config->ppi_info); - if (!bcap_dev->ppi) { - v4l2_err(pdev->dev.driver, "Unable to create ppi\n"); - ret = -ENODEV; - goto err_free_dev; - } - bcap_dev->ppi->priv = bcap_dev; - - vfd = &bcap_dev->video_dev; - /* initialize field of video device */ - vfd->release = video_device_release_empty; - vfd->fops = &bcap_fops; - vfd->ioctl_ops = &bcap_ioctl_ops; - vfd->tvnorms = 0; - vfd->v4l2_dev = &bcap_dev->v4l2_dev; - strncpy(vfd->name, CAPTURE_DRV_NAME, sizeof(vfd->name)); - - ret = v4l2_device_register(&pdev->dev, &bcap_dev->v4l2_dev); - if (ret) { - v4l2_err(pdev->dev.driver, - "Unable to register v4l2 device\n"); - goto err_free_ppi; - } - v4l2_info(&bcap_dev->v4l2_dev, "v4l2 device registered\n"); - - bcap_dev->v4l2_dev.ctrl_handler = &bcap_dev->ctrl_handler; - ret = v4l2_ctrl_handler_init(&bcap_dev->ctrl_handler, 0); - if (ret) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to init control handler\n"); - goto err_unreg_v4l2; - } - - spin_lock_init(&bcap_dev->lock); - /* initialize queue */ - q = &bcap_dev->buffer_queue; - q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - q->io_modes = VB2_MMAP | VB2_DMABUF; - q->drv_priv = bcap_dev; - q->buf_struct_size = sizeof(struct bcap_buffer); - q->ops = &bcap_video_qops; - q->mem_ops = &vb2_dma_contig_memops; - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->lock = &bcap_dev->mutex; - q->min_buffers_needed = 1; - q->dev = &pdev->dev; - - ret = vb2_queue_init(q); - if (ret) - goto err_free_handler; - - mutex_init(&bcap_dev->mutex); - init_completion(&bcap_dev->comp); - - /* init video dma queues */ - INIT_LIST_HEAD(&bcap_dev->dma_queue); - - vfd->lock = &bcap_dev->mutex; - vfd->queue = q; - - /* register video device */ - ret = video_register_device(&bcap_dev->video_dev, VFL_TYPE_GRABBER, -1); - if (ret) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to register video device\n"); - goto err_free_handler; - } - video_set_drvdata(&bcap_dev->video_dev, bcap_dev); - v4l2_info(&bcap_dev->v4l2_dev, "video device registered as: %s\n", - video_device_node_name(vfd)); - - /* load up the subdevice */ - i2c_adap = i2c_get_adapter(config->i2c_adapter_id); - if (!i2c_adap) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to find i2c adapter\n"); - ret = -ENODEV; - goto err_unreg_vdev; - - } - bcap_dev->sd = v4l2_i2c_new_subdev_board(&bcap_dev->v4l2_dev, - i2c_adap, - &config->board_info, - NULL); - if (bcap_dev->sd) { - int i; - - /* update tvnorms from the sub devices */ - for (i = 0; i < config->num_inputs; i++) - vfd->tvnorms |= config->inputs[i].std; - } else { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to register sub device\n"); - ret = -ENODEV; - goto err_unreg_vdev; - } - - v4l2_info(&bcap_dev->v4l2_dev, "v4l2 sub device registered\n"); - - /* - * explicitly set input, otherwise some boards - * may not work at the state as we expected - */ - route = &config->routes[0]; - ret = v4l2_subdev_call(bcap_dev->sd, video, s_routing, - route->input, route->output, 0); - if ((ret < 0) && (ret != -ENOIOCTLCMD)) { - v4l2_err(&bcap_dev->v4l2_dev, "Failed to set input\n"); - goto err_unreg_vdev; - } - bcap_dev->cur_input = 0; - /* if this route has specific config, update ppi control */ - if (route->ppi_control) - config->ppi_control = route->ppi_control; - - /* now we can probe the default state */ - if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { - v4l2_std_id std; - ret = v4l2_subdev_call(bcap_dev->sd, video, g_std, &std); - if (ret) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to get std\n"); - goto err_unreg_vdev; - } - bcap_dev->std = std; - } - if (config->inputs[0].capabilities & V4L2_IN_CAP_DV_TIMINGS) { - struct v4l2_dv_timings dv_timings; - ret = v4l2_subdev_call(bcap_dev->sd, video, - g_dv_timings, &dv_timings); - if (ret) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to get dv timings\n"); - goto err_unreg_vdev; - } - bcap_dev->dv_timings = dv_timings; - } - ret = bcap_init_sensor_formats(bcap_dev); - if (ret) { - v4l2_err(&bcap_dev->v4l2_dev, - "Unable to create sensor formats table\n"); - goto err_unreg_vdev; - } - return 0; -err_unreg_vdev: - video_unregister_device(&bcap_dev->video_dev); -err_free_handler: - v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); -err_unreg_v4l2: - v4l2_device_unregister(&bcap_dev->v4l2_dev); -err_free_ppi: - ppi_delete_instance(bcap_dev->ppi); -err_free_dev: - kfree(bcap_dev); - return ret; -} - -static int bcap_remove(struct platform_device *pdev) -{ - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct bcap_device *bcap_dev = container_of(v4l2_dev, - struct bcap_device, v4l2_dev); - - bcap_free_sensor_formats(bcap_dev); - video_unregister_device(&bcap_dev->video_dev); - v4l2_ctrl_handler_free(&bcap_dev->ctrl_handler); - v4l2_device_unregister(v4l2_dev); - ppi_delete_instance(bcap_dev->ppi); - kfree(bcap_dev); - return 0; -} - -static struct platform_driver bcap_driver = { - .driver = { - .name = CAPTURE_DRV_NAME, - }, - .probe = bcap_probe, - .remove = bcap_remove, -}; -module_platform_driver(bcap_driver); - -MODULE_DESCRIPTION("Analog Devices blackfin video capture driver"); -MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/platform/blackfin/ppi.c b/drivers/media/platform/blackfin/ppi.c deleted file mode 100644 index d3dc765c1609..000000000000 --- a/drivers/media/platform/blackfin/ppi.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * ppi.c Analog Devices Parallel Peripheral Interface driver - * - * Copyright (c) 2011 Analog Devices Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/platform_device.h> - -#include <asm/bfin_ppi.h> -#include <asm/blackfin.h> -#include <asm/cacheflush.h> -#include <asm/dma.h> -#include <asm/portmux.h> - -#include <media/blackfin/ppi.h> - -static int ppi_attach_irq(struct ppi_if *ppi, irq_handler_t handler); -static void ppi_detach_irq(struct ppi_if *ppi); -static int ppi_start(struct ppi_if *ppi); -static int ppi_stop(struct ppi_if *ppi); -static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params); -static void ppi_update_addr(struct ppi_if *ppi, unsigned long addr); - -static const struct ppi_ops ppi_ops = { - .attach_irq = ppi_attach_irq, - .detach_irq = ppi_detach_irq, - .start = ppi_start, - .stop = ppi_stop, - .set_params = ppi_set_params, - .update_addr = ppi_update_addr, -}; - -static irqreturn_t ppi_irq_err(int irq, void *dev_id) -{ - struct ppi_if *ppi = dev_id; - const struct ppi_info *info = ppi->info; - - switch (info->type) { - case PPI_TYPE_PPI: - { - struct bfin_ppi_regs *reg = info->base; - unsigned short status; - - /* register on bf561 is cleared when read - * others are W1C - */ - status = bfin_read16(®->status); - if (status & 0x3000) - ppi->err = true; - bfin_write16(®->status, 0xff00); - break; - } - case PPI_TYPE_EPPI: - { - struct bfin_eppi_regs *reg = info->base; - unsigned short status; - - status = bfin_read16(®->status); - if (status & 0x2) - ppi->err = true; - bfin_write16(®->status, 0xffff); - break; - } - case PPI_TYPE_EPPI3: - { - struct bfin_eppi3_regs *reg = info->base; - unsigned long stat; - - stat = bfin_read32(®->stat); - if (stat & 0x2) - ppi->err = true; - bfin_write32(®->stat, 0xc0ff); - break; - } - default: - break; - } - - return IRQ_HANDLED; -} - -static int ppi_attach_irq(struct ppi_if *ppi, irq_handler_t handler) -{ - const struct ppi_info *info = ppi->info; - int ret; - - ret = request_dma(info->dma_ch, "PPI_DMA"); - - if (ret) { - pr_err("Unable to allocate DMA channel for PPI\n"); - return ret; - } - set_dma_callback(info->dma_ch, handler, ppi); - - if (ppi->err_int) { - ret = request_irq(info->irq_err, ppi_irq_err, 0, "PPI ERROR", ppi); - if (ret) { - pr_err("Unable to allocate IRQ for PPI\n"); - free_dma(info->dma_ch); - } - } - return ret; -} - -static void ppi_detach_irq(struct ppi_if *ppi) -{ - const struct ppi_info *info = ppi->info; - - if (ppi->err_int) - free_irq(info->irq_err, ppi); - free_dma(info->dma_ch); -} - -static int ppi_start(struct ppi_if *ppi) -{ - const struct ppi_info *info = ppi->info; - - /* enable DMA */ - enable_dma(info->dma_ch); - - /* enable PPI */ - ppi->ppi_control |= PORT_EN; - switch (info->type) { - case PPI_TYPE_PPI: - { - struct bfin_ppi_regs *reg = info->base; - bfin_write16(®->control, ppi->ppi_control); - break; - } - case PPI_TYPE_EPPI: - { - struct bfin_eppi_regs *reg = info->base; - bfin_write32(®->control, ppi->ppi_control); - break; - } - case PPI_TYPE_EPPI3: - { - struct bfin_eppi3_regs *reg = info->base; - bfin_write32(®->ctl, ppi->ppi_control); - break; - } - default: - return -EINVAL; - } - - SSYNC(); - return 0; -} - -static int ppi_stop(struct ppi_if *ppi) -{ - const struct ppi_info *info = ppi->info; - - /* disable PPI */ - ppi->ppi_control &= ~PORT_EN; - switch (info->type) { - case PPI_TYPE_PPI: - { - struct bfin_ppi_regs *reg = info->base; - bfin_write16(®->control, ppi->ppi_control); - break; - } - case PPI_TYPE_EPPI: - { - struct bfin_eppi_regs *reg = info->base; - bfin_write32(®->control, ppi->ppi_control); - break; - } - case PPI_TYPE_EPPI3: - { - struct bfin_eppi3_regs *reg = info->base; - bfin_write32(®->ctl, ppi->ppi_control); - break; - } - default: - return -EINVAL; - } - - /* disable DMA */ - clear_dma_irqstat(info->dma_ch); - disable_dma(info->dma_ch); - - SSYNC(); - return 0; -} - -static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params) -{ - const struct ppi_info *info = ppi->info; - int dma32 = 0; - int dma_config, bytes_per_line; - int hcount, hdelay, samples_per_line; - -#ifdef CONFIG_PINCTRL - static const char * const pin_state[] = {"8bit", "16bit", "24bit"}; - struct pinctrl *pctrl; - struct pinctrl_state *pstate; - - if (params->dlen > 24 || params->dlen <= 0) - return -EINVAL; - pctrl = devm_pinctrl_get(ppi->dev); - if (IS_ERR(pctrl)) - return PTR_ERR(pctrl); - pstate = pinctrl_lookup_state(pctrl, - pin_state[(params->dlen + 7) / 8 - 1]); - if (pinctrl_select_state(pctrl, pstate)) - return -EINVAL; -#endif - - bytes_per_line = params->width * params->bpp / 8; - /* convert parameters unit from pixels to samples */ - hcount = params->width * params->bpp / params->dlen; - hdelay = params->hdelay * params->bpp / params->dlen; - samples_per_line = params->line * params->bpp / params->dlen; - if (params->int_mask == 0xFFFFFFFF) - ppi->err_int = false; - else - ppi->err_int = true; - - dma_config = (DMA_FLOW_STOP | RESTART | DMA2D | DI_EN_Y); - ppi->ppi_control = params->ppi_control & ~PORT_EN; - if (!(ppi->ppi_control & PORT_DIR)) - dma_config |= WNR; - switch (info->type) { - case PPI_TYPE_PPI: - { - struct bfin_ppi_regs *reg = info->base; - - if (params->ppi_control & DMA32) - dma32 = 1; - - bfin_write16(®->control, ppi->ppi_control); - bfin_write16(®->count, samples_per_line - 1); - bfin_write16(®->frame, params->frame); - break; - } - case PPI_TYPE_EPPI: - { - struct bfin_eppi_regs *reg = info->base; - - if ((params->ppi_control & PACK_EN) - || (params->ppi_control & 0x38000) > DLEN_16) - dma32 = 1; - - bfin_write32(®->control, ppi->ppi_control); - bfin_write16(®->line, samples_per_line); - bfin_write16(®->frame, params->frame); - bfin_write16(®->hdelay, hdelay); - bfin_write16(®->vdelay, params->vdelay); - bfin_write16(®->hcount, hcount); - bfin_write16(®->vcount, params->height); - break; - } - case PPI_TYPE_EPPI3: - { - struct bfin_eppi3_regs *reg = info->base; - - if ((params->ppi_control & PACK_EN) - || (params->ppi_control & 0x70000) > DLEN_16) - dma32 = 1; - - bfin_write32(®->ctl, ppi->ppi_control); - bfin_write32(®->line, samples_per_line); - bfin_write32(®->frame, params->frame); - bfin_write32(®->hdly, hdelay); - bfin_write32(®->vdly, params->vdelay); - bfin_write32(®->hcnt, hcount); - bfin_write32(®->vcnt, params->height); - if (params->int_mask) - bfin_write32(®->imsk, params->int_mask & 0xFF); - if (ppi->ppi_control & PORT_DIR) { - u32 hsync_width, vsync_width, vsync_period; - - hsync_width = params->hsync - * params->bpp / params->dlen; - vsync_width = params->vsync * samples_per_line; - vsync_period = samples_per_line * params->frame; - bfin_write32(®->fs1_wlhb, hsync_width); - bfin_write32(®->fs1_paspl, samples_per_line); - bfin_write32(®->fs2_wlvb, vsync_width); - bfin_write32(®->fs2_palpf, vsync_period); - } - break; - } - default: - return -EINVAL; - } - - if (dma32) { - dma_config |= WDSIZE_32 | PSIZE_32; - set_dma_x_count(info->dma_ch, bytes_per_line >> 2); - set_dma_x_modify(info->dma_ch, 4); - set_dma_y_modify(info->dma_ch, 4); - } else { - dma_config |= WDSIZE_16 | PSIZE_16; - set_dma_x_count(info->dma_ch, bytes_per_line >> 1); - set_dma_x_modify(info->dma_ch, 2); - set_dma_y_modify(info->dma_ch, 2); - } - set_dma_y_count(info->dma_ch, params->height); - set_dma_config(info->dma_ch, dma_config); - - SSYNC(); - return 0; -} - -static void ppi_update_addr(struct ppi_if *ppi, unsigned long addr) -{ - set_dma_start_addr(ppi->info->dma_ch, addr); -} - -struct ppi_if *ppi_create_instance(struct platform_device *pdev, - const struct ppi_info *info) -{ - struct ppi_if *ppi; - - if (!info || !info->pin_req) - return NULL; - -#ifndef CONFIG_PINCTRL - if (peripheral_request_list(info->pin_req, KBUILD_MODNAME)) { - dev_err(&pdev->dev, "request peripheral failed\n"); - return NULL; - } -#endif - - ppi = kzalloc(sizeof(*ppi), GFP_KERNEL); - if (!ppi) { - peripheral_free_list(info->pin_req); - return NULL; - } - ppi->ops = &ppi_ops; - ppi->info = info; - ppi->dev = &pdev->dev; - - pr_info("ppi probe success\n"); - return ppi; -} -EXPORT_SYMBOL(ppi_create_instance); - -void ppi_delete_instance(struct ppi_if *ppi) -{ - peripheral_free_list(ppi->info->pin_req); - kfree(ppi); -} -EXPORT_SYMBOL(ppi_delete_instance); - -MODULE_DESCRIPTION("Analog Devices PPI driver"); -MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>"); -MODULE_LICENSE("GPL v2"); |