Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Sergio Aguirre | 2872 | 91.73% | 1 | 3.70% |
Laurent Pinchart | 159 | 5.08% | 9 | 33.33% |
Mauro Carvalho Chehab | 28 | 0.89% | 5 | 18.52% |
Tomi Valkeinen | 26 | 0.83% | 1 | 3.70% |
Boris Brezillon | 14 | 0.45% | 1 | 3.70% |
Hans Verkuil | 14 | 0.45% | 3 | 11.11% |
Javier Martinez Canillas | 8 | 0.26% | 2 | 7.41% |
Amarjargal Gundjalam | 4 | 0.13% | 2 | 7.41% |
Arushi Singhal | 3 | 0.10% | 1 | 3.70% |
Daniel Graefe | 2 | 0.06% | 1 | 3.70% |
Sakari Ailus | 1 | 0.03% | 1 | 3.70% |
Total | 3131 | 27 |
// SPDX-License-Identifier: GPL-2.0+ /* * TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module * * Copyright (C) 2012 Texas Instruments, Inc. * * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> */ #include <linux/module.h> #include <linux/uaccess.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/mm.h> #include <linux/sched.h> #include "iss.h" #include "iss_regs.h" #include "iss_ipipeif.h" static const unsigned int ipipeif_fmts[] = { MEDIA_BUS_FMT_SGRBG10_1X10, MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_UYVY8_1X16, MEDIA_BUS_FMT_YUYV8_1X16, }; /* * ipipeif_print_status - Print current IPIPEIF Module register values. * @ipipeif: Pointer to ISS ISP IPIPEIF device. * * Also prints other debug information stored in the IPIPEIF module. */ #define IPIPEIF_PRINT_REGISTER(iss, name)\ dev_dbg(iss->dev, "###IPIPEIF " #name "=0x%08x\n", \ iss_reg_read(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_##name)) #define ISIF_PRINT_REGISTER(iss, name)\ dev_dbg(iss->dev, "###ISIF " #name "=0x%08x\n", \ iss_reg_read(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_##name)) #define ISP5_PRINT_REGISTER(iss, name)\ dev_dbg(iss->dev, "###ISP5 " #name "=0x%08x\n", \ iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_##name)) static void ipipeif_print_status(struct iss_ipipeif_device *ipipeif) { struct iss_device *iss = to_iss_device(ipipeif); dev_dbg(iss->dev, "-------------IPIPEIF Register dump-------------\n"); IPIPEIF_PRINT_REGISTER(iss, CFG1); IPIPEIF_PRINT_REGISTER(iss, CFG2); ISIF_PRINT_REGISTER(iss, SYNCEN); ISIF_PRINT_REGISTER(iss, CADU); ISIF_PRINT_REGISTER(iss, CADL); ISIF_PRINT_REGISTER(iss, MODESET); ISIF_PRINT_REGISTER(iss, CCOLP); ISIF_PRINT_REGISTER(iss, SPH); ISIF_PRINT_REGISTER(iss, LNH); ISIF_PRINT_REGISTER(iss, LNV); ISIF_PRINT_REGISTER(iss, VDINT(0)); ISIF_PRINT_REGISTER(iss, HSIZE); ISP5_PRINT_REGISTER(iss, SYSCONFIG); ISP5_PRINT_REGISTER(iss, CTRL); ISP5_PRINT_REGISTER(iss, IRQSTATUS(0)); ISP5_PRINT_REGISTER(iss, IRQENABLE_SET(0)); ISP5_PRINT_REGISTER(iss, IRQENABLE_CLR(0)); dev_dbg(iss->dev, "-----------------------------------------------\n"); } static void ipipeif_write_enable(struct iss_ipipeif_device *ipipeif, u8 enable) { struct iss_device *iss = to_iss_device(ipipeif); iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SYNCEN, ISIF_SYNCEN_DWEN, enable ? ISIF_SYNCEN_DWEN : 0); } /* * ipipeif_enable - Enable/Disable IPIPEIF. * @enable: enable flag * */ static void ipipeif_enable(struct iss_ipipeif_device *ipipeif, u8 enable) { struct iss_device *iss = to_iss_device(ipipeif); iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SYNCEN, ISIF_SYNCEN_SYEN, enable ? ISIF_SYNCEN_SYEN : 0); } /* ----------------------------------------------------------------------------- * Format- and pipeline-related configuration helpers */ /* * ipipeif_set_outaddr - Set memory address to save output image * @ipipeif: Pointer to ISP IPIPEIF device. * @addr: 32-bit memory address aligned on 32 byte boundary. * * Sets the memory address where the output will be saved. */ static void ipipeif_set_outaddr(struct iss_ipipeif_device *ipipeif, u32 addr) { struct iss_device *iss = to_iss_device(ipipeif); /* Save address split in Base Address H & L */ iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CADU, (addr >> (16 + 5)) & ISIF_CADU_MASK); iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CADL, (addr >> 5) & ISIF_CADL_MASK); } static void ipipeif_configure(struct iss_ipipeif_device *ipipeif) { struct iss_device *iss = to_iss_device(ipipeif); const struct iss_format_info *info; struct v4l2_mbus_framefmt *format; u32 isif_ccolp = 0; omap4iss_configure_bridge(iss, ipipeif->input); /* IPIPEIF_PAD_SINK */ format = &ipipeif->formats[IPIPEIF_PAD_SINK]; /* IPIPEIF with YUV422 input from ISIF */ iss_reg_clr(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG1, IPIPEIF_CFG1_INPSRC1_MASK | IPIPEIF_CFG1_INPSRC2_MASK); /* Select ISIF/IPIPEIF input format */ switch (format->code) { case MEDIA_BUS_FMT_UYVY8_1X16: case MEDIA_BUS_FMT_YUYV8_1X16: iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_MODESET, ISIF_MODESET_CCDMD | ISIF_MODESET_INPMOD_MASK | ISIF_MODESET_CCDW_MASK, ISIF_MODESET_INPMOD_YCBCR16); iss_reg_update(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG2, IPIPEIF_CFG2_YUV8, IPIPEIF_CFG2_YUV16); break; case MEDIA_BUS_FMT_SGRBG10_1X10: isif_ccolp = ISIF_CCOLP_CP0_F0_GR | ISIF_CCOLP_CP1_F0_R | ISIF_CCOLP_CP2_F0_B | ISIF_CCOLP_CP3_F0_GB; goto cont_raw; case MEDIA_BUS_FMT_SRGGB10_1X10: isif_ccolp = ISIF_CCOLP_CP0_F0_R | ISIF_CCOLP_CP1_F0_GR | ISIF_CCOLP_CP2_F0_GB | ISIF_CCOLP_CP3_F0_B; goto cont_raw; case MEDIA_BUS_FMT_SBGGR10_1X10: isif_ccolp = ISIF_CCOLP_CP0_F0_B | ISIF_CCOLP_CP1_F0_GB | ISIF_CCOLP_CP2_F0_GR | ISIF_CCOLP_CP3_F0_R; goto cont_raw; case MEDIA_BUS_FMT_SGBRG10_1X10: isif_ccolp = ISIF_CCOLP_CP0_F0_GB | ISIF_CCOLP_CP1_F0_B | ISIF_CCOLP_CP2_F0_R | ISIF_CCOLP_CP3_F0_GR; cont_raw: iss_reg_clr(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG2, IPIPEIF_CFG2_YUV16); iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_MODESET, ISIF_MODESET_CCDMD | ISIF_MODESET_INPMOD_MASK | ISIF_MODESET_CCDW_MASK, ISIF_MODESET_INPMOD_RAW | ISIF_MODESET_CCDW_2BIT); info = omap4iss_video_format_info(format->code); iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CGAMMAWD, ISIF_CGAMMAWD_GWDI_MASK, ISIF_CGAMMAWD_GWDI(info->bpp)); /* Set RAW Bayer pattern */ iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CCOLP, isif_ccolp); break; } iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SPH, 0 & ISIF_SPH_MASK); iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_LNH, (format->width - 1) & ISIF_LNH_MASK); iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_LNV, (format->height - 1) & ISIF_LNV_MASK); /* Generate ISIF0 on the last line of the image */ iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_VDINT(0), format->height - 1); /* IPIPEIF_PAD_SOURCE_ISIF_SF */ format = &ipipeif->formats[IPIPEIF_PAD_SOURCE_ISIF_SF]; iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_HSIZE, (ipipeif->video_out.bpl_value >> 5) & ISIF_HSIZE_HSIZE_MASK); /* IPIPEIF_PAD_SOURCE_VP */ /* Do nothing? */ } /* ----------------------------------------------------------------------------- * Interrupt handling */ static void ipipeif_isr_buffer(struct iss_ipipeif_device *ipipeif) { struct iss_buffer *buffer; /* The ISIF generates VD0 interrupts even when writes are disabled. * deal with it anyway). Disabling the ISIF when no buffer is available * is thus not be enough, we need to handle the situation explicitly. */ if (list_empty(&ipipeif->video_out.dmaqueue)) return; ipipeif_write_enable(ipipeif, 0); buffer = omap4iss_video_buffer_next(&ipipeif->video_out); if (!buffer) return; ipipeif_set_outaddr(ipipeif, buffer->iss_addr); ipipeif_write_enable(ipipeif, 1); } /* * omap4iss_ipipeif_isr - Configure ipipeif during interframe time. * @ipipeif: Pointer to ISP IPIPEIF device. * @events: IPIPEIF events */ void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events) { if (omap4iss_module_sync_is_stopping(&ipipeif->wait, &ipipeif->stopping)) return; if ((events & ISP5_IRQ_ISIF_INT(0)) && (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)) ipipeif_isr_buffer(ipipeif); } /* ----------------------------------------------------------------------------- * ISP video operations */ static int ipipeif_video_queue(struct iss_video *video, struct iss_buffer *buffer) { struct iss_ipipeif_device *ipipeif = container_of(video, struct iss_ipipeif_device, video_out); if (!(ipipeif->output & IPIPEIF_OUTPUT_MEMORY)) return -ENODEV; ipipeif_set_outaddr(ipipeif, buffer->iss_addr); /* * If streaming was enabled before there was a buffer queued * or underrun happened in the ISR, the hardware was not enabled * and DMA queue flag ISS_VIDEO_DMAQUEUE_UNDERRUN is still set. * Enable it now. */ if (video->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_UNDERRUN) { if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY) ipipeif_write_enable(ipipeif, 1); ipipeif_enable(ipipeif, 1); iss_video_dmaqueue_flags_clr(video); } return 0; } static const struct iss_video_operations ipipeif_video_ops = { .queue = ipipeif_video_queue, }; /* ----------------------------------------------------------------------------- * V4L2 subdev operations */ #define IPIPEIF_DRV_SUBCLK_MASK (OMAP4_ISS_ISP_SUBCLK_IPIPEIF |\ OMAP4_ISS_ISP_SUBCLK_ISIF) /* * ipipeif_set_stream - Enable/Disable streaming on the IPIPEIF module * @sd: ISP IPIPEIF V4L2 subdevice * @enable: Enable/disable stream */ static int ipipeif_set_stream(struct v4l2_subdev *sd, int enable) { struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct iss_device *iss = to_iss_device(ipipeif); struct iss_video *video_out = &ipipeif->video_out; int ret = 0; if (ipipeif->state == ISS_PIPELINE_STREAM_STOPPED) { if (enable == ISS_PIPELINE_STREAM_STOPPED) return 0; omap4iss_isp_subclk_enable(iss, IPIPEIF_DRV_SUBCLK_MASK); } switch (enable) { case ISS_PIPELINE_STREAM_CONTINUOUS: ipipeif_configure(ipipeif); ipipeif_print_status(ipipeif); /* * When outputting to memory with no buffer available, let the * buffer queue handler start the hardware. A DMA queue flag * ISS_VIDEO_DMAQUEUE_QUEUED will be set as soon as there is * a buffer available. */ if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY && !(video_out->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_QUEUED)) break; atomic_set(&ipipeif->stopping, 0); if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY) ipipeif_write_enable(ipipeif, 1); ipipeif_enable(ipipeif, 1); iss_video_dmaqueue_flags_clr(video_out); break; case ISS_PIPELINE_STREAM_STOPPED: if (ipipeif->state == ISS_PIPELINE_STREAM_STOPPED) return 0; if (omap4iss_module_sync_idle(&sd->entity, &ipipeif->wait, &ipipeif->stopping)) ret = -ETIMEDOUT; if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY) ipipeif_write_enable(ipipeif, 0); ipipeif_enable(ipipeif, 0); omap4iss_isp_subclk_disable(iss, IPIPEIF_DRV_SUBCLK_MASK); iss_video_dmaqueue_flags_clr(video_out); break; } ipipeif->state = enable; return ret; } static struct v4l2_mbus_framefmt * __ipipeif_get_format(struct iss_ipipeif_device *ipipeif, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { if (which == V4L2_SUBDEV_FORMAT_TRY) return v4l2_subdev_state_get_format(sd_state, pad); return &ipipeif->formats[pad]; } /* * ipipeif_try_format - Try video format on a pad * @ipipeif: ISS IPIPEIF device * @sd_state: V4L2 subdev state * @pad: Pad number * @fmt: Format */ static void ipipeif_try_format(struct iss_ipipeif_device *ipipeif, struct v4l2_subdev_state *sd_state, unsigned int pad, struct v4l2_mbus_framefmt *fmt, enum v4l2_subdev_format_whence which) { struct v4l2_mbus_framefmt *format; unsigned int width = fmt->width; unsigned int height = fmt->height; unsigned int i; switch (pad) { case IPIPEIF_PAD_SINK: /* TODO: If the IPIPEIF output formatter pad is connected * directly to the resizer, only YUV formats can be used. */ for (i = 0; i < ARRAY_SIZE(ipipeif_fmts); i++) { if (fmt->code == ipipeif_fmts[i]) break; } /* If not found, use SGRBG10 as default */ if (i >= ARRAY_SIZE(ipipeif_fmts)) fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; /* Clamp the input size. */ fmt->width = clamp_t(u32, width, 1, 8192); fmt->height = clamp_t(u32, height, 1, 8192); break; case IPIPEIF_PAD_SOURCE_ISIF_SF: format = __ipipeif_get_format(ipipeif, sd_state, IPIPEIF_PAD_SINK, which); memcpy(fmt, format, sizeof(*fmt)); /* The data formatter truncates the number of horizontal output * pixels to a multiple of 16. To avoid clipping data, allow * callers to request an output size bigger than the input size * up to the nearest multiple of 16. */ fmt->width = clamp_t(u32, width, 32, (fmt->width + 15) & ~15); fmt->width &= ~15; fmt->height = clamp_t(u32, height, 32, fmt->height); break; case IPIPEIF_PAD_SOURCE_VP: format = __ipipeif_get_format(ipipeif, sd_state, IPIPEIF_PAD_SINK, which); memcpy(fmt, format, sizeof(*fmt)); fmt->width = clamp_t(u32, width, 32, fmt->width); fmt->height = clamp_t(u32, height, 32, fmt->height); break; } /* Data is written to memory unpacked, each 10-bit or 12-bit pixel is * stored on 2 bytes. */ fmt->colorspace = V4L2_COLORSPACE_SRGB; fmt->field = V4L2_FIELD_NONE; } /* * ipipeif_enum_mbus_code - Handle pixel format enumeration * @sd : pointer to v4l2 subdev structure * @sd_state: V4L2 subdev state * @code : pointer to v4l2_subdev_mbus_code_enum structure * return -EINVAL or zero on success */ static int ipipeif_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format; switch (code->pad) { case IPIPEIF_PAD_SINK: if (code->index >= ARRAY_SIZE(ipipeif_fmts)) return -EINVAL; code->code = ipipeif_fmts[code->index]; break; case IPIPEIF_PAD_SOURCE_ISIF_SF: case IPIPEIF_PAD_SOURCE_VP: /* No format conversion inside IPIPEIF */ if (code->index != 0) return -EINVAL; format = __ipipeif_get_format(ipipeif, sd_state, IPIPEIF_PAD_SINK, code->which); code->code = format->code; break; default: return -EINVAL; } return 0; } static int ipipeif_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt format; if (fse->index != 0) return -EINVAL; format.code = fse->code; format.width = 1; format.height = 1; ipipeif_try_format(ipipeif, sd_state, fse->pad, &format, fse->which); fse->min_width = format.width; fse->min_height = format.height; if (format.code != fse->code) return -EINVAL; format.code = fse->code; format.width = -1; format.height = -1; ipipeif_try_format(ipipeif, sd_state, fse->pad, &format, fse->which); fse->max_width = format.width; fse->max_height = format.height; return 0; } /* * ipipeif_get_format - Retrieve the video format on a pad * @sd : ISP IPIPEIF V4L2 subdevice * @sd_state: V4L2 subdev state * @fmt: Format * * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond * to the format type. */ static int ipipeif_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format; format = __ipipeif_get_format(ipipeif, sd_state, fmt->pad, fmt->which); if (!format) return -EINVAL; fmt->format = *format; return 0; } /* * ipipeif_set_format - Set the video format on a pad * @sd : ISP IPIPEIF V4L2 subdevice * @sd_state: V4L2 subdev state * @fmt: Format * * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond * to the format type. */ static int ipipeif_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format; format = __ipipeif_get_format(ipipeif, sd_state, fmt->pad, fmt->which); if (!format) return -EINVAL; ipipeif_try_format(ipipeif, sd_state, fmt->pad, &fmt->format, fmt->which); *format = fmt->format; /* Propagate the format from sink to source */ if (fmt->pad == IPIPEIF_PAD_SINK) { format = __ipipeif_get_format(ipipeif, sd_state, IPIPEIF_PAD_SOURCE_ISIF_SF, fmt->which); *format = fmt->format; ipipeif_try_format(ipipeif, sd_state, IPIPEIF_PAD_SOURCE_ISIF_SF, format, fmt->which); format = __ipipeif_get_format(ipipeif, sd_state, IPIPEIF_PAD_SOURCE_VP, fmt->which); *format = fmt->format; ipipeif_try_format(ipipeif, sd_state, IPIPEIF_PAD_SOURCE_VP, format, fmt->which); } return 0; } static int ipipeif_link_validate(struct v4l2_subdev *sd, struct media_link *link, struct v4l2_subdev_format *source_fmt, struct v4l2_subdev_format *sink_fmt) { /* Check if the two ends match */ if (source_fmt->format.width != sink_fmt->format.width || source_fmt->format.height != sink_fmt->format.height) return -EPIPE; if (source_fmt->format.code != sink_fmt->format.code) return -EPIPE; return 0; } /* * ipipeif_init_formats - Initialize formats on all pads * @sd: ISP IPIPEIF V4L2 subdevice * @fh: V4L2 subdev file handle * * Initialize all pad formats with default values. If fh is not NULL, try * formats are initialized on the file handle. Otherwise active formats are * initialized on the device. */ static int ipipeif_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct v4l2_subdev_format format; memset(&format, 0, sizeof(format)); format.pad = IPIPEIF_PAD_SINK; format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10; format.format.width = 4096; format.format.height = 4096; ipipeif_set_format(sd, fh ? fh->state : NULL, &format); return 0; } /* V4L2 subdev video operations */ static const struct v4l2_subdev_video_ops ipipeif_v4l2_video_ops = { .s_stream = ipipeif_set_stream, }; /* V4L2 subdev pad operations */ static const struct v4l2_subdev_pad_ops ipipeif_v4l2_pad_ops = { .enum_mbus_code = ipipeif_enum_mbus_code, .enum_frame_size = ipipeif_enum_frame_size, .get_fmt = ipipeif_get_format, .set_fmt = ipipeif_set_format, .link_validate = ipipeif_link_validate, }; /* V4L2 subdev operations */ static const struct v4l2_subdev_ops ipipeif_v4l2_ops = { .video = &ipipeif_v4l2_video_ops, .pad = &ipipeif_v4l2_pad_ops, }; /* V4L2 subdev internal operations */ static const struct v4l2_subdev_internal_ops ipipeif_v4l2_internal_ops = { .open = ipipeif_init_formats, }; /* ----------------------------------------------------------------------------- * Media entity operations */ /* * ipipeif_link_setup - Setup IPIPEIF connections * @entity: IPIPEIF media entity * @local: Pad at the local end of the link * @remote: Pad at the remote end of the link * @flags: Link flags * * return -EINVAL or zero on success */ static int ipipeif_link_setup(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags) { struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd); struct iss_device *iss = to_iss_device(ipipeif); unsigned int index = local->index; /* FIXME: this is actually a hack! */ if (is_media_entity_v4l2_subdev(remote->entity)) index |= 2 << 16; switch (index) { case IPIPEIF_PAD_SINK | 2 << 16: /* Read from the sensor CSI2a or CSI2b. */ if (!(flags & MEDIA_LNK_FL_ENABLED)) { ipipeif->input = IPIPEIF_INPUT_NONE; break; } if (ipipeif->input != IPIPEIF_INPUT_NONE) return -EBUSY; if (remote->entity == &iss->csi2a.subdev.entity) ipipeif->input = IPIPEIF_INPUT_CSI2A; else if (remote->entity == &iss->csi2b.subdev.entity) ipipeif->input = IPIPEIF_INPUT_CSI2B; break; case IPIPEIF_PAD_SOURCE_ISIF_SF: /* Write to memory */ if (flags & MEDIA_LNK_FL_ENABLED) { if (ipipeif->output & ~IPIPEIF_OUTPUT_MEMORY) return -EBUSY; ipipeif->output |= IPIPEIF_OUTPUT_MEMORY; } else { ipipeif->output &= ~IPIPEIF_OUTPUT_MEMORY; } break; case IPIPEIF_PAD_SOURCE_VP | 2 << 16: /* Send to IPIPE/RESIZER */ if (flags & MEDIA_LNK_FL_ENABLED) { if (ipipeif->output & ~IPIPEIF_OUTPUT_VP) return -EBUSY; ipipeif->output |= IPIPEIF_OUTPUT_VP; } else { ipipeif->output &= ~IPIPEIF_OUTPUT_VP; } break; default: return -EINVAL; } return 0; } /* media operations */ static const struct media_entity_operations ipipeif_media_ops = { .link_setup = ipipeif_link_setup, .link_validate = v4l2_subdev_link_validate, }; /* * ipipeif_init_entities - Initialize V4L2 subdev and media entity * @ipipeif: ISS ISP IPIPEIF module * * Return 0 on success and a negative error code on failure. */ static int ipipeif_init_entities(struct iss_ipipeif_device *ipipeif) { struct v4l2_subdev *sd = &ipipeif->subdev; struct media_pad *pads = ipipeif->pads; struct media_entity *me = &sd->entity; int ret; ipipeif->input = IPIPEIF_INPUT_NONE; v4l2_subdev_init(sd, &ipipeif_v4l2_ops); sd->internal_ops = &ipipeif_v4l2_internal_ops; strscpy(sd->name, "OMAP4 ISS ISP IPIPEIF", sizeof(sd->name)); sd->grp_id = BIT(16); /* group ID for iss subdevs */ v4l2_set_subdevdata(sd, ipipeif); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; pads[IPIPEIF_PAD_SINK].flags = MEDIA_PAD_FL_SINK; pads[IPIPEIF_PAD_SOURCE_ISIF_SF].flags = MEDIA_PAD_FL_SOURCE; pads[IPIPEIF_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE; me->ops = &ipipeif_media_ops; ret = media_entity_pads_init(me, IPIPEIF_PADS_NUM, pads); if (ret < 0) return ret; ipipeif_init_formats(sd, NULL); ipipeif->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; ipipeif->video_out.ops = &ipipeif_video_ops; ipipeif->video_out.iss = to_iss_device(ipipeif); ipipeif->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3; ipipeif->video_out.bpl_alignment = 32; ipipeif->video_out.bpl_zero_padding = 1; ipipeif->video_out.bpl_max = 0x1ffe0; return omap4iss_video_init(&ipipeif->video_out, "ISP IPIPEIF"); } void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif) { v4l2_device_unregister_subdev(&ipipeif->subdev); omap4iss_video_unregister(&ipipeif->video_out); } int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif, struct v4l2_device *vdev) { int ret; /* Register the subdev and video node. */ ret = v4l2_device_register_subdev(vdev, &ipipeif->subdev); if (ret < 0) goto error; ret = omap4iss_video_register(&ipipeif->video_out, vdev); if (ret < 0) goto error; return 0; error: omap4iss_ipipeif_unregister_entities(ipipeif); return ret; } /* ----------------------------------------------------------------------------- * ISP IPIPEIF initialisation and cleanup */ /* * omap4iss_ipipeif_init - IPIPEIF module initialization. * @iss: Device pointer specific to the OMAP4 ISS. * * TODO: Get the initialisation values from platform data. * * Return 0 on success or a negative error code otherwise. */ int omap4iss_ipipeif_init(struct iss_device *iss) { struct iss_ipipeif_device *ipipeif = &iss->ipipeif; ipipeif->state = ISS_PIPELINE_STREAM_STOPPED; init_waitqueue_head(&ipipeif->wait); return ipipeif_init_entities(ipipeif); } /* * omap4iss_ipipeif_create_links() - IPIPEIF pads links creation * @iss: Pointer to ISS device * * return negative error code or zero on success */ int omap4iss_ipipeif_create_links(struct iss_device *iss) { struct iss_ipipeif_device *ipipeif = &iss->ipipeif; /* Connect the IPIPEIF subdev to the video node. */ return media_create_pad_link(&ipipeif->subdev.entity, IPIPEIF_PAD_SOURCE_ISIF_SF, &ipipeif->video_out.video.entity, 0, 0); } /* * omap4iss_ipipeif_cleanup - IPIPEIF module cleanup. * @iss: Device pointer specific to the OMAP4 ISS. */ void omap4iss_ipipeif_cleanup(struct iss_device *iss) { struct iss_ipipeif_device *ipipeif = &iss->ipipeif; media_entity_cleanup(&ipipeif->subdev.entity); }
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