diff options
author | Scott Jiang <scott.jiang.linux@gmail.com> | 2012-11-20 18:49:36 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-12-26 12:33:44 (GMT) |
commit | 45b82596be0214f161c8176bd3e18f779e36eccd (patch) | |
tree | 15f8f8faec4191f6d4df58af8f4b52b131ef36e0 | |
parent | fab0e8fa432e42d7b5c91a3d4c8af053f291a65a (diff) | |
download | linux-45b82596be0214f161c8176bd3e18f779e36eccd.tar.xz |
[media] v4l2: blackfin: add EPPI3 support
Bf60x soc has a new PPI called Enhanced PPI version 3.
HD video is supported now. To achieve this, we redesign
ppi params and add dv timings feature.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r-- | drivers/media/platform/blackfin/bfin_capture.c | 148 | ||||
-rw-r--r-- | drivers/media/platform/blackfin/ppi.c | 72 | ||||
-rw-r--r-- | include/media/blackfin/bfin_capture.h | 5 | ||||
-rw-r--r-- | include/media/blackfin/ppi.h | 33 |
4 files changed, 222 insertions, 36 deletions
diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c index d422d3c..aa9f846 100644 --- a/drivers/media/platform/blackfin/bfin_capture.c +++ b/drivers/media/platform/blackfin/bfin_capture.c @@ -52,6 +52,7 @@ struct bcap_format { u32 pixelformat; enum v4l2_mbus_pixelcode mbus_code; int bpp; /* bits per pixel */ + int dlen; /* data length for ppi in bits */ }; struct bcap_buffer { @@ -76,10 +77,14 @@ struct bcap_device { 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 */ @@ -116,24 +121,35 @@ static const struct bcap_format bcap_formats[] = { .pixelformat = V4L2_PIX_FMT_UYVY, .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, .bpp = 16, + .dlen = 8, }, { .desc = "YCbCr 4:2:2 Interleaved YUYV", .pixelformat = V4L2_PIX_FMT_YUYV, .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, .bpp = 16, + .dlen = 8, + }, + { + .desc = "YCbCr 4:2:2 Interleaved UYVY", + .pixelformat = V4L2_PIX_FMT_UYVY, + .mbus_code = V4L2_MBUS_FMT_UYVY8_1X16, + .bpp = 16, + .dlen = 16, }, { .desc = "RGB 565", .pixelformat = V4L2_PIX_FMT_RGB565, .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE, .bpp = 16, + .dlen = 8, }, { .desc = "RGB 444", .pixelformat = V4L2_PIX_FMT_RGB444, .mbus_code = V4L2_MBUS_FMT_RGB444_2X8_PADHI_LE, .bpp = 16, + .dlen = 8, }, }; @@ -366,9 +382,39 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) 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; - params.blank_clocks = bcap_dev->cfg->blank_clocks; + if (bcap_dev->cfg->inputs[bcap_dev->cur_input].capabilities + & V4L2_IN_CAP_CUSTOM_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 = bt->hfrontporch + bt->hsync + + bt->hbackporch + bt->width; + params.frame = bt->vfrontporch + bt->vsync + + bt->vbackporch + bt->height; + if (bt->interlaced) + params.frame += bt->il_vfrontporch + bt->il_vsync + + bt->il_vbackporch; + } 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, @@ -600,6 +646,37 @@ static int bcap_s_std(struct file *file, void *priv, v4l2_std_id *std) return 0; } +static int bcap_g_dv_timings(struct file *file, void *priv, + struct v4l2_dv_timings *timings) +{ + struct bcap_device *bcap_dev = video_drvdata(file); + int ret; + + ret = v4l2_subdev_call(bcap_dev->sd, video, + g_dv_timings, timings); + if (ret < 0) + return ret; + + bcap_dev->dv_timings = *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); + int ret; + 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) { @@ -648,13 +725,15 @@ static int bcap_s_input(struct file *file, void *priv, unsigned int index) 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, - enum v4l2_mbus_pixelcode *mbus_code, - int *bpp) + struct bcap_format *bcap_fmt) { struct bcap_format *sf = bcap->sensor_formats; struct bcap_format *fmt = NULL; @@ -669,16 +748,20 @@ static int bcap_try_format(struct bcap_device *bcap, if (i == bcap->num_sensor_formats) fmt = &sf[0]; - if (mbus_code) - *mbus_code = fmt->mbus_code; - if (bpp) - *bpp = fmt->bpp; v4l2_fill_mbus_format(&mbus_fmt, pixfmt, fmt->mbus_code); ret = v4l2_subdev_call(bcap->sd, video, try_mbus_fmt, &mbus_fmt); if (ret < 0) return ret; v4l2_fill_pix_format(pixfmt, &mbus_fmt); + if (bcap_fmt) { + for (i = 0; i < bcap->num_sensor_formats; i++) { + fmt = &sf[i]; + if (mbus_fmt.code == fmt->mbus_code) + break; + } + *bcap_fmt = *fmt; + } pixfmt->bytesperline = pixfmt->width * fmt->bpp / 8; pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; return 0; @@ -707,7 +790,7 @@ static int bcap_try_fmt_vid_cap(struct file *file, void *priv, struct bcap_device *bcap_dev = video_drvdata(file); struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - return bcap_try_format(bcap_dev, pixfmt, NULL, NULL); + return bcap_try_format(bcap_dev, pixfmt, NULL); } static int bcap_g_fmt_vid_cap(struct file *file, void *priv, @@ -724,24 +807,25 @@ static int bcap_s_fmt_vid_cap(struct file *file, void *priv, { struct bcap_device *bcap_dev = video_drvdata(file); struct v4l2_mbus_framefmt mbus_fmt; - enum v4l2_mbus_pixelcode mbus_code; + struct bcap_format bcap_fmt; struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - int ret, bpp; + int ret; if (vb2_is_busy(&bcap_dev->buffer_queue)) return -EBUSY; /* see if format works */ - ret = bcap_try_format(bcap_dev, pixfmt, &mbus_code, &bpp); + ret = bcap_try_format(bcap_dev, pixfmt, &bcap_fmt); if (ret < 0) return ret; - v4l2_fill_mbus_format(&mbus_fmt, pixfmt, mbus_code); + v4l2_fill_mbus_format(&mbus_fmt, pixfmt, bcap_fmt.mbus_code); ret = v4l2_subdev_call(bcap_dev->sd, video, s_mbus_fmt, &mbus_fmt); if (ret < 0) return ret; bcap_dev->fmt = *pixfmt; - bcap_dev->bpp = bpp; + bcap_dev->bpp = bcap_fmt.bpp; + bcap_dev->dlen = bcap_fmt.dlen; return 0; } @@ -832,6 +916,8 @@ static const struct v4l2_ioctl_ops bcap_ioctl_ops = { .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_reqbufs = bcap_reqbufs, .vidioc_querybuf = bcap_querybuf, .vidioc_qbuf = bcap_qbuf, @@ -867,6 +953,7 @@ static int __devinit bcap_probe(struct platform_device *pdev) 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; @@ -976,6 +1063,12 @@ static int __devinit bcap_probe(struct platform_device *pdev) NULL); if (bcap_dev->sd) { int i; + if (!config->num_inputs) { + v4l2_err(&bcap_dev->v4l2_dev, + "Unable to work without input\n"); + goto err_unreg_vdev; + } + /* update tvnorms from the sub devices */ for (i = 0; i < config->num_inputs; i++) vfd->tvnorms |= config->inputs[i].std; @@ -987,8 +1080,24 @@ static int __devinit bcap_probe(struct platform_device *pdev) 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 (vfd->tvnorms) { + if (config->inputs[0].capabilities & V4L2_IN_CAP_STD) { v4l2_std_id std; ret = v4l2_subdev_call(bcap_dev->sd, core, g_std, &std); if (ret) { @@ -998,6 +1107,17 @@ static int __devinit bcap_probe(struct platform_device *pdev) } bcap_dev->std = std; } + if (config->inputs[0].capabilities & V4L2_IN_CAP_CUSTOM_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, diff --git a/drivers/media/platform/blackfin/ppi.c b/drivers/media/platform/blackfin/ppi.c index 9374d67..1e24584 100644 --- a/drivers/media/platform/blackfin/ppi.c +++ b/drivers/media/platform/blackfin/ppi.c @@ -68,6 +68,13 @@ static irqreturn_t ppi_irq_err(int irq, void *dev_id) bfin_write16(®->status, 0xffff); break; } + case PPI_TYPE_EPPI3: + { + struct bfin_eppi3_regs *reg = info->base; + + bfin_write32(®->stat, 0xc0ff); + break; + } default: break; } @@ -129,6 +136,12 @@ static int ppi_start(struct ppi_if *ppi) 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; } @@ -156,6 +169,12 @@ static int ppi_stop(struct ppi_if *ppi) 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; } @@ -172,17 +191,23 @@ 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, lines_per_frame; + int dma_config, bytes_per_line; + int hcount, hdelay, samples_per_line; bytes_per_line = params->width * params->bpp / 8; - lines_per_frame = params->height; + /* 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 | WNR | RESTART | DMA2D | DI_EN); + 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: { @@ -192,8 +217,8 @@ static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params) dma32 = 1; bfin_write16(®->control, ppi->ppi_control); - bfin_write16(®->count, bytes_per_line - 1); - bfin_write16(®->frame, lines_per_frame); + bfin_write16(®->count, samples_per_line - 1); + bfin_write16(®->frame, params->frame); break; } case PPI_TYPE_EPPI: @@ -205,12 +230,31 @@ static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params) dma32 = 1; bfin_write32(®->control, ppi->ppi_control); - bfin_write16(®->line, bytes_per_line + params->blank_clocks); - bfin_write16(®->frame, lines_per_frame); - bfin_write16(®->hdelay, 0); - bfin_write16(®->vdelay, 0); - bfin_write16(®->hcount, bytes_per_line); - bfin_write16(®->vcount, lines_per_frame); + 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); break; } default: @@ -218,17 +262,17 @@ static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params) } if (dma32) { - dma_config |= WDSIZE_32; + 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; + 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, lines_per_frame); + set_dma_y_count(info->dma_ch, params->height); set_dma_config(info->dma_ch, dma_config); SSYNC(); diff --git a/include/media/blackfin/bfin_capture.h b/include/media/blackfin/bfin_capture.h index 2038a8a..56b9ce4 100644 --- a/include/media/blackfin/bfin_capture.h +++ b/include/media/blackfin/bfin_capture.h @@ -9,6 +9,7 @@ struct ppi_info; struct bcap_route { u32 input; u32 output; + u32 ppi_control; }; struct bfin_capture_config { @@ -30,8 +31,8 @@ struct bfin_capture_config { unsigned long ppi_control; /* ppi interrupt mask */ u32 int_mask; - /* horizontal blanking clocks */ - int blank_clocks; + /* horizontal blanking pixels */ + int blank_pixels; }; #endif diff --git a/include/media/blackfin/ppi.h b/include/media/blackfin/ppi.h index 8f72f8a..65c4675 100644 --- a/include/media/blackfin/ppi.h +++ b/include/media/blackfin/ppi.h @@ -21,22 +21,42 @@ #define _PPI_H_ #include <linux/interrupt.h> +#include <asm/blackfin.h> +#include <asm/bfin_ppi.h> +/* EPPI */ #ifdef EPPI_EN #define PORT_EN EPPI_EN +#define PORT_DIR EPPI_DIR #define DMA32 0 #define PACK_EN PACKEN #endif +/* EPPI3 */ +#ifdef EPPI0_CTL2 +#define PORT_EN EPPI_CTL_EN +#define PORT_DIR EPPI_CTL_DIR +#define PACK_EN EPPI_CTL_PACKEN +#define DMA32 0 +#define DLEN_8 EPPI_CTL_DLEN08 +#define DLEN_16 EPPI_CTL_DLEN16 +#endif + struct ppi_if; struct ppi_params { - int width; - int height; - int bpp; - unsigned long ppi_control; - u32 int_mask; - int blank_clocks; + u32 width; /* width in pixels */ + u32 height; /* height in lines */ + u32 hdelay; /* delay after the HSYNC in pixels */ + u32 vdelay; /* delay after the VSYNC in lines */ + u32 line; /* total pixels per line */ + u32 frame; /* total lines per frame */ + u32 hsync; /* HSYNC length in pixels */ + u32 vsync; /* VSYNC length in lines */ + int bpp; /* bits per pixel */ + int dlen; /* data length for ppi in bits */ + u32 ppi_control; /* ppi configuration */ + u32 int_mask; /* interrupt mask */ }; struct ppi_ops { @@ -51,6 +71,7 @@ struct ppi_ops { enum ppi_type { PPI_TYPE_PPI, PPI_TYPE_EPPI, + PPI_TYPE_EPPI3, }; struct ppi_info { |