diff options
Diffstat (limited to 'drivers/media/platform/soc_camera')
| -rw-r--r-- | drivers/media/platform/soc_camera/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/media/platform/soc_camera/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/platform/soc_camera/atmel-isi.c | 1368 | ||||
| -rw-r--r-- | drivers/media/platform/soc_camera/atmel-isi.h | 138 |
4 files changed, 0 insertions, 1517 deletions
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig index ac538d3062b3..f5979c12ad61 100644 --- a/drivers/media/platform/soc_camera/Kconfig +++ b/drivers/media/platform/soc_camera/Kconfig @@ -25,13 +25,3 @@ config VIDEO_SH_MOBILE_CEU select SOC_CAMERA_SCALE_CROP ---help--- This is a v4l2 driver for the SuperH Mobile CEU Interface - -config VIDEO_ATMEL_ISI - tristate "ATMEL Image Sensor Interface (ISI) support" - depends on VIDEO_V4L2 && OF && HAS_DMA - depends on ARCH_AT91 || COMPILE_TEST - select VIDEOBUF2_DMA_CONTIG - ---help--- - This module makes the ATMEL Image Sensor Interface available - as a v4l2 device. - diff --git a/drivers/media/platform/soc_camera/Makefile b/drivers/media/platform/soc_camera/Makefile index 7633a0f2f66f..07a451e8b228 100644 --- a/drivers/media/platform/soc_camera/Makefile +++ b/drivers/media/platform/soc_camera/Makefile @@ -6,5 +6,4 @@ obj-$(CONFIG_SOC_CAMERA_SCALE_CROP) += soc_scale_crop.o obj-$(CONFIG_SOC_CAMERA_PLATFORM) += soc_camera_platform.o # soc-camera host drivers have to be linked after camera drivers -obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c deleted file mode 100644 index e4867f84514c..000000000000 --- a/drivers/media/platform/soc_camera/atmel-isi.c +++ /dev/null @@ -1,1368 +0,0 @@ -/* - * Copyright (c) 2011 Atmel Corporation - * Josh Wu, <josh.wu@atmel.com> - * - * Based on previous work by Lars Haring, <lars.haring@atmel.com> - * and Sedji Gaouaou - * Based on the bttv driver for Bt848 with respective copyright holders - * - * 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. - */ - -#include <linux/clk.h> -#include <linux/completion.h> -#include <linux/delay.h> -#include <linux/fs.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/slab.h> -#include <linux/of.h> - -#include <linux/videodev2.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-device.h> -#include <media/v4l2-dev.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-event.h> -#include <media/v4l2-of.h> -#include <media/videobuf2-dma-contig.h> -#include <media/v4l2-image-sizes.h> - -#include "atmel-isi.h" - -#define MAX_SUPPORT_WIDTH 2048 -#define MAX_SUPPORT_HEIGHT 2048 -#define MIN_FRAME_RATE 15 -#define FRAME_INTERVAL_MILLI_SEC (1000 / MIN_FRAME_RATE) - -/* Frame buffer descriptor */ -struct fbd { - /* Physical address of the frame buffer */ - u32 fb_address; - /* DMA Control Register(only in HISI2) */ - u32 dma_ctrl; - /* Physical address of the next fbd */ - u32 next_fbd_address; -}; - -static void set_dma_ctrl(struct fbd *fb_desc, u32 ctrl) -{ - fb_desc->dma_ctrl = ctrl; -} - -struct isi_dma_desc { - struct list_head list; - struct fbd *p_fbd; - dma_addr_t fbd_phys; -}; - -/* Frame buffer data */ -struct frame_buffer { - struct vb2_v4l2_buffer vb; - struct isi_dma_desc *p_dma_desc; - struct list_head list; -}; - -struct isi_graph_entity { - struct device_node *node; - - struct v4l2_async_subdev asd; - struct v4l2_subdev *subdev; -}; - -/* - * struct isi_format - ISI media bus format information - * @fourcc: Fourcc code for this format - * @mbus_code: V4L2 media bus format code. - * @bpp: Bytes per pixel (when stored in memory) - * @swap: Byte swap configuration value - * @support: Indicates format supported by subdev - * @skip: Skip duplicate format supported by subdev - */ -struct isi_format { - u32 fourcc; - u32 mbus_code; - u8 bpp; - u32 swap; -}; - - -struct atmel_isi { - /* Protects the access of variables shared with the ISR */ - spinlock_t irqlock; - struct device *dev; - void __iomem *regs; - - int sequence; - - /* Allocate descriptors for dma buffer use */ - struct fbd *p_fb_descriptors; - dma_addr_t fb_descriptors_phys; - struct list_head dma_desc_head; - struct isi_dma_desc dma_desc[VIDEO_MAX_FRAME]; - bool enable_preview_path; - - struct completion complete; - /* ISI peripherial clock */ - struct clk *pclk; - unsigned int irq; - - struct isi_platform_data pdata; - u16 width_flags; /* max 12 bits */ - - struct list_head video_buffer_list; - struct frame_buffer *active; - - struct v4l2_device v4l2_dev; - struct video_device *vdev; - struct v4l2_async_notifier notifier; - struct isi_graph_entity entity; - struct v4l2_format fmt; - - const struct isi_format **user_formats; - unsigned int num_user_formats; - const struct isi_format *current_fmt; - - struct mutex lock; - struct vb2_queue queue; -}; - -#define notifier_to_isi(n) container_of(n, struct atmel_isi, notifier) - -static void isi_writel(struct atmel_isi *isi, u32 reg, u32 val) -{ - writel(val, isi->regs + reg); -} -static u32 isi_readl(struct atmel_isi *isi, u32 reg) -{ - return readl(isi->regs + reg); -} - -static void configure_geometry(struct atmel_isi *isi) -{ - u32 cfg2, psize; - u32 fourcc = isi->current_fmt->fourcc; - - isi->enable_preview_path = fourcc == V4L2_PIX_FMT_RGB565 || - fourcc == V4L2_PIX_FMT_RGB32; - - /* According to sensor's output format to set cfg2 */ - cfg2 = isi->current_fmt->swap; - - isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS); - /* Set width */ - cfg2 |= ((isi->fmt.fmt.pix.width - 1) << ISI_CFG2_IM_HSIZE_OFFSET) & - ISI_CFG2_IM_HSIZE_MASK; - /* Set height */ - cfg2 |= ((isi->fmt.fmt.pix.height - 1) << ISI_CFG2_IM_VSIZE_OFFSET) - & ISI_CFG2_IM_VSIZE_MASK; - isi_writel(isi, ISI_CFG2, cfg2); - - /* No down sampling, preview size equal to sensor output size */ - psize = ((isi->fmt.fmt.pix.width - 1) << ISI_PSIZE_PREV_HSIZE_OFFSET) & - ISI_PSIZE_PREV_HSIZE_MASK; - psize |= ((isi->fmt.fmt.pix.height - 1) << ISI_PSIZE_PREV_VSIZE_OFFSET) & - ISI_PSIZE_PREV_VSIZE_MASK; - isi_writel(isi, ISI_PSIZE, psize); - isi_writel(isi, ISI_PDECF, ISI_PDECF_NO_SAMPLING); -} - -static irqreturn_t atmel_isi_handle_streaming(struct atmel_isi *isi) -{ - if (isi->active) { - struct vb2_v4l2_buffer *vbuf = &isi->active->vb; - struct frame_buffer *buf = isi->active; - - list_del_init(&buf->list); - vbuf->vb2_buf.timestamp = ktime_get_ns(); - vbuf->sequence = isi->sequence++; - vbuf->field = V4L2_FIELD_NONE; - vb2_buffer_done(&vbuf->vb2_buf, VB2_BUF_STATE_DONE); - } - - if (list_empty(&isi->video_buffer_list)) { - isi->active = NULL; - } else { - /* start next dma frame. */ - isi->active = list_entry(isi->video_buffer_list.next, - struct frame_buffer, list); - if (!isi->enable_preview_path) { - isi_writel(isi, ISI_DMA_C_DSCR, - (u32)isi->active->p_dma_desc->fbd_phys); - isi_writel(isi, ISI_DMA_C_CTRL, - ISI_DMA_CTRL_FETCH | ISI_DMA_CTRL_DONE); - isi_writel(isi, ISI_DMA_CHER, ISI_DMA_CHSR_C_CH); - } else { - isi_writel(isi, ISI_DMA_P_DSCR, - (u32)isi->active->p_dma_desc->fbd_phys); - isi_writel(isi, ISI_DMA_P_CTRL, - ISI_DMA_CTRL_FETCH | ISI_DMA_CTRL_DONE); - isi_writel(isi, ISI_DMA_CHER, ISI_DMA_CHSR_P_CH); - } - } - return IRQ_HANDLED; -} - -/* ISI interrupt service routine */ -static irqreturn_t isi_interrupt(int irq, void *dev_id) -{ - struct atmel_isi *isi = dev_id; - u32 status, mask, pending; - irqreturn_t ret = IRQ_NONE; - - spin_lock(&isi->irqlock); - - status = isi_readl(isi, ISI_STATUS); - mask = isi_readl(isi, ISI_INTMASK); - pending = status & mask; - - if (pending & ISI_CTRL_SRST) { - complete(&isi->complete); - isi_writel(isi, ISI_INTDIS, ISI_CTRL_SRST); - ret = IRQ_HANDLED; - } else if (pending & ISI_CTRL_DIS) { - complete(&isi->complete); - isi_writel(isi, ISI_INTDIS, ISI_CTRL_DIS); - ret = IRQ_HANDLED; - } else { - if (likely(pending & ISI_SR_CXFR_DONE) || - likely(pending & ISI_SR_PXFR_DONE)) - ret = atmel_isi_handle_streaming(isi); - } - - spin_unlock(&isi->irqlock); - return ret; -} - -#define WAIT_ISI_RESET 1 -#define WAIT_ISI_DISABLE 0 -static int atmel_isi_wait_status(struct atmel_isi *isi, int wait_reset) -{ - unsigned long timeout; - /* - * The reset or disable will only succeed if we have a - * pixel clock from the camera. - */ - init_completion(&isi->complete); - - if (wait_reset) { - isi_writel(isi, ISI_INTEN, ISI_CTRL_SRST); - isi_writel(isi, ISI_CTRL, ISI_CTRL_SRST); - } else { - isi_writel(isi, ISI_INTEN, ISI_CTRL_DIS); - isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS); - } - - timeout = wait_for_completion_timeout(&isi->complete, - msecs_to_jiffies(500)); - if (timeout == 0) - return -ETIMEDOUT; - - return 0; -} - -/* ------------------------------------------------------------------ - Videobuf operations - ------------------------------------------------------------------*/ -static int queue_setup(struct vb2_queue *vq, - unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], struct device *alloc_devs[]) -{ - struct atmel_isi *isi = vb2_get_drv_priv(vq); - unsigned long size; - - size = isi->fmt.fmt.pix.sizeimage; - - /* Make sure the image size is large enough. */ - if (*nplanes) - return sizes[0] < size ? -EINVAL : 0; - - *nplanes = 1; - sizes[0] = size; - - isi->active = NULL; - - dev_dbg(isi->dev, "%s, count=%d, size=%ld\n", __func__, - *nbuffers, size); - - return 0; -} - -static int buffer_init(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb); - - buf->p_dma_desc = NULL; - INIT_LIST_HEAD(&buf->list); - - return 0; -} - -static int buffer_prepare(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb); - struct atmel_isi *isi = vb2_get_drv_priv(vb->vb2_queue); - unsigned long size; - struct isi_dma_desc *desc; - - size = isi->fmt.fmt.pix.sizeimage; - - if (vb2_plane_size(vb, 0) < size) { - dev_err(isi->dev, "%s data will not fit into plane (%lu < %lu)\n", - __func__, vb2_plane_size(vb, 0), size); - return -EINVAL; - } - - vb2_set_plane_payload(vb, 0, size); - - if (!buf->p_dma_desc) { - if (list_empty(&isi->dma_desc_head)) { - dev_err(isi->dev, "Not enough dma descriptors.\n"); - return -EINVAL; - } else { - /* Get an available descriptor */ - desc = list_entry(isi->dma_desc_head.next, - struct isi_dma_desc, list); - /* Delete the descriptor since now it is used */ - list_del_init(&desc->list); - - /* Initialize the dma descriptor */ - desc->p_fbd->fb_address = - vb2_dma_contig_plane_dma_addr(vb, 0); - desc->p_fbd->next_fbd_address = 0; - set_dma_ctrl(desc->p_fbd, ISI_DMA_CTRL_WB); - - buf->p_dma_desc = desc; - } - } - return 0; -} - -static void buffer_cleanup(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct atmel_isi *isi = vb2_get_drv_priv(vb->vb2_queue); - struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb); - - /* This descriptor is available now and we add to head list */ - if (buf->p_dma_desc) - list_add(&buf->p_dma_desc->list, &isi->dma_desc_head); -} - -static void start_dma(struct atmel_isi *isi, struct frame_buffer *buffer) -{ - u32 ctrl, cfg1; - - cfg1 = isi_readl(isi, ISI_CFG1); - /* Enable irq: cxfr for the codec path, pxfr for the preview path */ - isi_writel(isi, ISI_INTEN, - ISI_SR_CXFR_DONE | ISI_SR_PXFR_DONE); - - /* Check if already in a frame */ - if (!isi->enable_preview_path) { - if (isi_readl(isi, ISI_STATUS) & ISI_CTRL_CDC) { - dev_err(isi->dev, "Already in frame handling.\n"); - return; - } - - isi_writel(isi, ISI_DMA_C_DSCR, - (u32)buffer->p_dma_desc->fbd_phys); - isi_writel(isi, ISI_DMA_C_CTRL, - ISI_DMA_CTRL_FETCH | ISI_DMA_CTRL_DONE); - isi_writel(isi, ISI_DMA_CHER, ISI_DMA_CHSR_C_CH); - } else { - isi_writel(isi, ISI_DMA_P_DSCR, - (u32)buffer->p_dma_desc->fbd_phys); - isi_writel(isi, ISI_DMA_P_CTRL, - ISI_DMA_CTRL_FETCH | ISI_DMA_CTRL_DONE); - isi_writel(isi, ISI_DMA_CHER, ISI_DMA_CHSR_P_CH); - } - - cfg1 &= ~ISI_CFG1_FRATE_DIV_MASK; - /* Enable linked list */ - cfg1 |= isi->pdata.frate | ISI_CFG1_DISCR; - - /* Enable ISI */ - ctrl = ISI_CTRL_EN; - - if (!isi->enable_preview_path) - ctrl |= ISI_CTRL_CDC; - - isi_writel(isi, ISI_CTRL, ctrl); - isi_writel(isi, ISI_CFG1, cfg1); -} - -static void buffer_queue(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct atmel_isi *isi = vb2_get_drv_priv(vb->vb2_queue); - struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb); - unsigned long flags = 0; - - spin_lock_irqsave(&isi->irqlock, flags); - list_add_tail(&buf->list, &isi->video_buffer_list); - - if (isi->active == NULL) { - isi->active = buf; - if (vb2_is_streaming(vb->vb2_queue)) - start_dma(isi, buf); - } - spin_unlock_irqrestore(&isi->irqlock, flags); -} - -static int start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct atmel_isi *isi = vb2_get_drv_priv(vq); - struct frame_buffer *buf, *node; - int ret; - - /* Enable stream on the sub device */ - ret = v4l2_subdev_call(isi->entity.subdev, video, s_stream, 1); - if (ret && ret != -ENOIOCTLCMD) { - dev_err(isi->dev, "stream on failed in subdev\n"); - goto err_start_stream; - } - - pm_runtime_get_sync(isi->dev); - - /* Reset ISI */ - ret = atmel_isi_wait_status(isi, WAIT_ISI_RESET); - if (ret < 0) { - dev_err(isi->dev, "Reset ISI timed out\n"); - goto err_reset; - } - /* Disable all interrupts */ - isi_writel(isi, ISI_INTDIS, (u32)~0UL); - - isi->sequence = 0; - configure_geometry(isi); - - spin_lock_irq(&isi->irqlock); - /* Clear any pending interrupt */ - isi_readl(isi, ISI_STATUS); - - start_dma(isi, isi->active); - spin_unlock_irq(&isi->irqlock); - - return 0; - -err_reset: - pm_runtime_put(isi->dev); - v4l2_subdev_call(isi->entity.subdev, video, s_stream, 0); - -err_start_stream: - spin_lock_irq(&isi->irqlock); - isi->active = NULL; - /* Release all active buffers */ - list_for_each_entry_safe(buf, node, &isi->video_buffer_list, list) { - list_del_init(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); - } - spin_unlock_irq(&isi->irqlock); - - return ret; -} - -/* abort streaming and wait for last buffer */ -static void stop_streaming(struct vb2_queue *vq) -{ - struct atmel_isi *isi = vb2_get_drv_priv(vq); - struct frame_buffer *buf, *node; - int ret = 0; - unsigned long timeout; - - /* Disable stream on the sub device */ - ret = v4l2_subdev_call(isi->entity.subdev, video, s_stream, 0); - if (ret && ret != -ENOIOCTLCMD) - dev_err(isi->dev, "stream off failed in subdev\n"); - - spin_lock_irq(&isi->irqlock); - isi->active = NULL; - /* Release all active buffers */ - list_for_each_entry_safe(buf, node, &isi->video_buffer_list, list) { - list_del_init(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); - } - spin_unlock_irq(&isi->irqlock); - - if (!isi->enable_preview_path) { - timeout = jiffies + FRAME_INTERVAL_MILLI_SEC * HZ; - /* Wait until the end of the current frame. */ - while ((isi_readl(isi, ISI_STATUS) & ISI_CTRL_CDC) && - time_before(jiffies, timeout)) - msleep(1); - - if (time_after(jiffies, timeout)) - dev_err(isi->dev, - "Timeout waiting for finishing codec request\n"); - } - - /* Disable interrupts */ - isi_writel(isi, ISI_INTDIS, - ISI_SR_CXFR_DONE | ISI_SR_PXFR_DONE); - - /* Disable ISI and wait for it is done */ - ret = atmel_isi_wait_status(isi, WAIT_ISI_DISABLE); - if (ret < 0) - dev_err(isi->dev, "Disable ISI timed out\n"); - - pm_runtime_put(isi->dev); -} - -static const struct vb2_ops isi_video_qops = { - .queue_setup = queue_setup, - .buf_init = buffer_init, - .buf_prepare = buffer_prepare, - .buf_cleanup = buffer_cleanup, - .buf_queue = buffer_queue, - .start_streaming = start_streaming, - .stop_streaming = stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -static int isi_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct atmel_isi *isi = video_drvdata(file); - - *fmt = isi->fmt; - - return 0; -} - -static const struct isi_format *find_format_by_fourcc(struct atmel_isi *isi, - unsigned int fourcc) -{ - unsigned int num_formats = isi->num_user_formats; - const struct isi_format *fmt; - unsigned int i; - - for (i = 0; i < num_formats; i++) { - fmt = isi->user_formats[i]; - if (fmt->fourcc == fourcc) - return fmt; - } - - return NULL; -} - -static int isi_try_fmt(struct atmel_isi *isi, struct v4l2_format *f, - const struct isi_format **current_fmt) -{ - const struct isi_format *isi_fmt; - struct v4l2_pix_format *pixfmt = &f->fmt.pix; - struct v4l2_subdev_pad_config pad_cfg; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_TRY, - }; - int ret; - - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - isi_fmt = find_format_by_fourcc(isi, pixfmt->pixelformat); - if (!isi_fmt) { - isi_fmt = isi->user_formats[isi->num_user_formats - 1]; - pixfmt->pixelformat = isi_fmt->fourcc; - } - - /* Limit to Atmel ISC hardware capabilities */ - if (pixfmt->width > MAX_SUPPORT_WIDTH) - pixfmt->width = MAX_SUPPORT_WIDTH; - if (pixfmt->height > MAX_SUPPORT_HEIGHT) - pixfmt->height = MAX_SUPPORT_HEIGHT; - - v4l2_fill_mbus_format(&format.format, pixfmt, isi_fmt->mbus_code); - ret = v4l2_subdev_call(isi->entity.subdev, pad, set_fmt, - &pad_cfg, &format); - if (ret < 0) - return ret; - - v4l2_fill_pix_format(pixfmt, &format.format); - - pixfmt->field = V4L2_FIELD_NONE; - pixfmt->bytesperline = pixfmt->width * isi_fmt->bpp; - pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; - - if (current_fmt) - *current_fmt = isi_fmt; - - return 0; -} - -static int isi_set_fmt(struct atmel_isi *isi, struct v4l2_format *f) -{ - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - const struct isi_format *current_fmt; - int ret; - - ret = isi_try_fmt(isi, f, ¤t_fmt); - if (ret) - return ret; - - v4l2_fill_mbus_format(&format.format, &f->fmt.pix, - current_fmt->mbus_code); - ret = v4l2_subdev_call(isi->entity.subdev, pad, - set_fmt, NULL, &format); - if (ret < 0) - return ret; - - isi->fmt = *f; - isi->current_fmt = current_fmt; - - return 0; -} - -static int isi_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct atmel_isi *isi = video_drvdata(file); - - if (vb2_is_streaming(&isi->queue)) - return -EBUSY; - - return isi_set_fmt(isi, f); -} - -static int isi_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct atmel_isi *isi = video_drvdata(file); - - return isi_try_fmt(isi, f, NULL); -} - -static int isi_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - struct atmel_isi *isi = video_drvdata(file); - - if (f->index >= isi->num_user_formats) - return -EINVAL; - - f->pixelformat = isi->user_formats[f->index]->fourcc; - return 0; -} - -static int isi_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - strlcpy(cap->driver, "atmel-isi", sizeof(cap->driver)); - strlcpy(cap->card, "Atmel Image Sensor Interface", sizeof(cap->card)); - strlcpy(cap->bus_info, "platform:isi", sizeof(cap->bus_info)); - return 0; -} - -static int isi_enum_input(struct file *file, void *priv, - struct v4l2_input *i) -{ - if (i->index != 0) - return -EINVAL; - - i->type = V4L2_INPUT_TYPE_CAMERA; - strlcpy(i->name, "Camera", sizeof(i->name)); - return 0; -} - -static int isi_g_input(struct file *file, void *priv, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int isi_s_input(struct file *file, void *priv, unsigned int i) -{ - if (i > 0) - return -EINVAL; - return 0; -} - -static int isi_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) -{ - struct atmel_isi *isi = video_drvdata(file); - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - a->parm.capture.readbuffers = 2; - return v4l2_subdev_call(isi->entity.subdev, video, g_parm, a); -} - -static int isi_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) -{ - struct atmel_isi *isi = video_drvdata(file); - - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - - a->parm.capture.readbuffers = 2; - return v4l2_subdev_call(isi->entity.subdev, video, s_parm, a); -} - -static int isi_enum_framesizes(struct file *file, void *fh, - struct v4l2_frmsizeenum *fsize) -{ - struct atmel_isi *isi = video_drvdata(file); - const struct isi_format *isi_fmt; - struct v4l2_subdev_frame_size_enum fse = { - .index = fsize->index, - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - int ret; - - isi_fmt = find_format_by_fourcc(isi, fsize->pixel_format); - if (!isi_fmt) - return -EINVAL; - - fse.code = isi_fmt->mbus_code; - - ret = v4l2_subdev_call(isi->entity.subdev, pad, enum_frame_size, - NULL, &fse); - if (ret) - return ret; - - fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; - fsize->discrete.width = fse.max_width; - fsize->discrete.height = fse.max_height; - - return 0; -} - -static int isi_enum_frameintervals(struct file *file, void *fh, - struct v4l2_frmivalenum *fival) -{ - struct atmel_isi *isi = video_drvdata(file); - const struct isi_format *isi_fmt; - struct v4l2_subdev_frame_interval_enum fie = { - .index = fival->index, - .width = fival->width, - .height = fival->height, - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - int ret; - - isi_fmt = find_format_by_fourcc(isi, fival->pixel_format); - if (!isi_fmt) - return -EINVAL; - - fie.code = isi_fmt->mbus_code; - - ret = v4l2_subdev_call(isi->entity.subdev, pad, - enum_frame_interval, NULL, &fie); - if (ret) - return ret; - - fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; - fival->discrete = fie.interval; - - return 0; -} - -static void isi_camera_set_bus_param(struct atmel_isi *isi) -{ - u32 cfg1 = 0; - - /* set bus param for ISI */ - if (isi->pdata.hsync_act_low) - cfg1 |= ISI_CFG1_HSYNC_POL_ACTIVE_LOW; - if (isi->pdata.vsync_act_low) - cfg1 |= ISI_CFG1_VSYNC_POL_ACTIVE_LOW; - if (isi->pdata.pclk_act_falling) - cfg1 |= ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING; - if (isi->pdata.has_emb_sync) - cfg1 |= ISI_CFG1_EMB_SYNC; - if (isi->pdata.full_mode) - cfg1 |= ISI_CFG1_FULL_MODE; - - cfg1 |= ISI_CFG1_THMASK_BEATS_16; - - /* Enable PM and peripheral clock before operate isi registers */ - pm_runtime_get_sync(isi->dev); - - isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS); - isi_writel(isi, ISI_CFG1, cfg1); - - pm_runtime_put(isi->dev); -} - -/* -----------------------------------------------------------------------*/ -static int atmel_isi_parse_dt(struct atmel_isi *isi, - struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - struct v4l2_of_endpoint ep; - int err; - - /* Default settings for ISI */ - isi->pdata.full_mode = 1; - isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL; - - np = of_graph_get_next_endpoint(np, NULL); - if (!np) { - dev_err(&pdev->dev, "Could not find the endpoint\n"); - return -EINVAL; - } - - err = v4l2_of_parse_endpoint(np, &ep); - of_node_put(np); - if (err) { - dev_err(&pdev->dev, "Could not parse the endpoint\n"); - return err; - } - - switch (ep.bus.parallel.bus_width) { - case 8: - isi->pdata.data_width_flags = ISI_DATAWIDTH_8; - break; - case 10: - isi->pdata.data_width_flags = - ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10; - break; - default: - dev_err(&pdev->dev, "Unsupported bus width: %d\n", - ep.bus.parallel.bus_width); - return -EINVAL; - } - - if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) - isi->pdata.hsync_act_low = true; - if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) - isi->pdata.vsync_act_low = true; - if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) - isi->pdata.pclk_act_falling = true; - - if (ep.bus_type == V4L2_MBUS_BT656) - isi->pdata.has_emb_sync = true; - - return 0; -} - -static int isi_open(struct file *file) -{ - struct atmel_isi *isi = video_drvdata(file); - struct v4l2_subdev *sd = isi->entity.subdev; - int ret; - - if (mutex_lock_interruptible(&isi->lock)) - return -ERESTARTSYS; - - ret = v4l2_fh_open(file); - if (ret < 0) - goto unlock; - - if (!v4l2_fh_is_singular_file(file)) - goto fh_rel; - - ret = v4l2_subdev_call(sd, core, s_power, 1); - if (ret < 0 && ret != -ENOIOCTLCMD) - goto fh_rel; - - ret = isi_set_fmt(isi, &isi->fmt); - if (ret) - v4l2_subdev_call(sd, core, s_power, 0); -fh_rel: - if (ret) - v4l2_fh_release(file); -unlock: - mutex_unlock(&isi->lock); - return ret; -} - -static int isi_release(struct file *file) -{ - struct atmel_isi *isi = video_drvdata(file); - struct v4l2_subdev *sd = isi->entity.subdev; - bool fh_singular; - int ret; - - mutex_lock(&isi->lock); - - fh_singular = v4l2_fh_is_singular_file(file); - - ret = _vb2_fop_release(file, NULL); - - if (fh_singular) - v4l2_subdev_call(sd, core, s_power, 0); - - mutex_unlock(&isi->lock); - - return ret; -} - -static const struct v4l2_ioctl_ops isi_ioctl_ops = { - .vidioc_querycap = isi_querycap, - - .vidioc_try_fmt_vid_cap = isi_try_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = isi_g_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = isi_s_fmt_vid_cap, - .vidioc_enum_fmt_vid_cap = isi_enum_fmt_vid_cap, - - .vidioc_enum_input = isi_enum_input, - .vidioc_g_input = isi_g_input, - .vidioc_s_input = isi_s_input, - - .vidioc_g_parm = isi_g_parm, - .vidioc_s_parm = isi_s_parm, - .vidioc_enum_framesizes = isi_enum_framesizes, - .vidioc_enum_frameintervals = isi_enum_frameintervals, - - .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_prepare_buf = vb2_ioctl_prepare_buf, - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - - .vidioc_log_status = v4l2_ctrl_log_status, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -static const struct v4l2_file_operations isi_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = video_ioctl2, - .open = isi_open, - .release = isi_release, - .poll = vb2_fop_poll, - .mmap = vb2_fop_mmap, - .read = vb2_fop_read, -}; - -static int isi_set_default_fmt(struct atmel_isi *isi) -{ - struct v4l2_format f = { - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .fmt.pix = { - .width = VGA_WIDTH, - .height = VGA_HEIGHT, - .field = V4L2_FIELD_NONE, - .pixelformat = isi->user_formats[0]->fourcc, - }, - }; - int ret; - - ret = isi_try_fmt(isi, &f, NULL); - if (ret) - return ret; - isi->current_fmt = isi->user_formats[0]; - isi->fmt = f; - return 0; -} - -static const struct isi_format isi_formats[] = { - { - .fourcc = V4L2_PIX_FMT_YUYV, - .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_DEFAULT, - }, { - .fourcc = V4L2_PIX_FMT_YUYV, - .mbus_code = MEDIA_BUS_FMT_YVYU8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_1, - }, { - .fourcc = V4L2_PIX_FMT_YUYV, - .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_2, - }, { - .fourcc = V4L2_PIX_FMT_YUYV, - .mbus_code = MEDIA_BUS_FMT_VYUY8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_3, - }, { - .fourcc = V4L2_PIX_FMT_RGB565, - .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_2, - }, { - .fourcc = V4L2_PIX_FMT_RGB565, - .mbus_code = MEDIA_BUS_FMT_YVYU8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_3, - }, { - .fourcc = V4L2_PIX_FMT_RGB565, - .mbus_code = MEDIA_BUS_FMT_UYVY8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_DEFAULT, - }, { - .fourcc = V4L2_PIX_FMT_RGB565, - .mbus_code = MEDIA_BUS_FMT_VYUY8_2X8, - .bpp = 2, - .swap = ISI_CFG2_YCC_SWAP_MODE_1, - }, -}; - -static int isi_formats_init(struct atmel_isi *isi) -{ - const struct isi_format *isi_fmts[ARRAY_SIZE(isi_formats)]; - unsigned int num_fmts = 0, i, j; - struct v4l2_subdev *subdev = isi->entity.subdev; - struct v4l2_subdev_mbus_code_enum mbus_code = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - - while (!v4l2_subdev_call(subdev, pad, enum_mbus_code, - NULL, &mbus_code)) { - for (i = 0; i < ARRAY_SIZE(isi_formats); i++) { - if (isi_formats[i].mbus_code != mbus_code.code) - continue; - - /* Code supported, have we got this fourcc yet? */ - for (j = 0; j < num_fmts; j++) - if (isi_fmts[j]->fourcc == isi_formats[i].fourcc) - /* Already available */ - break; - if (j == num_fmts) - /* new */ - isi_fmts[num_fmts++] = isi_formats + i; - } - mbus_code.index++; - } - - if (!num_fmts) - return -ENXIO; - - isi->num_user_formats = num_fmts; - isi->user_formats = devm_kcalloc(isi->dev, - num_fmts, sizeof(struct isi_format *), - GFP_KERNEL); - if (!isi->user_formats) { - dev_err(isi->dev, "could not allocate memory\n"); - return -ENOMEM; - } - - memcpy(isi->user_formats, isi_fmts, - num_fmts * sizeof(struct isi_format *)); - isi->current_fmt = isi->user_formats[0]; - - return 0; -} - -static int isi_graph_notify_complete(struct v4l2_async_notifier *notifier) -{ - struct atmel_isi *isi = notifier_to_isi(notifier); - int ret; - - isi->vdev->ctrl_handler = isi->entity.subdev->ctrl_handler; - ret = isi_formats_init(isi); - if (ret) { - dev_err(isi->dev, "No supported mediabus format found\n"); - return ret; - } - isi_camera_set_bus_param(isi); - - ret = isi_set_default_fmt(isi); - if (ret) { - dev_err(isi->dev, "Could not set default format\n"); - return ret; - } - - ret = video_register_device(isi->vdev, VFL_TYPE_GRABBER, -1); - if (ret) { - dev_err(isi->dev, "Failed to register video device\n"); - return ret; - } - - dev_dbg(isi->dev, "Device registered as %s\n", - video_device_node_name(isi->vdev)); - return 0; -} - -static void isi_graph_notify_unbind(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *sd, - struct v4l2_async_subdev *asd) -{ - struct atmel_isi *isi = notifier_to_isi(notifier); - - dev_dbg(isi->dev, "Removing %s\n", video_device_node_name(isi->vdev)); - - /* Checks internaly if vdev have been init or not */ - video_unregister_device(isi->vdev); -} - -static int isi_graph_notify_bound(struct v4l2_async_notifier *notifier, - struct v4l2_subdev *subdev, - struct v4l2_async_subdev *asd) -{ - struct atmel_isi *isi = notifier_to_isi(notifier); - - dev_dbg(isi->dev, "subdev %s bound\n", subdev->name); - - isi->entity.subdev = subdev; - - return 0; -} - -static int isi_graph_parse(struct atmel_isi *isi, struct device_node *node) -{ - struct device_node *ep = NULL; - struct device_node *remote; - - while (1) { - ep = of_graph_get_next_endpoint(node, ep); - if (!ep) - return -EINVAL; - - remote = of_graph_get_remote_port_parent(ep); - if (!remote) { - of_node_put(ep); - return -EINVAL; - } - - /* Remote node to connect */ - isi->entity.node = remote; - isi->entity.asd.match_type = V4L2_ASYNC_MATCH_OF; - isi->entity.asd.match.of.node = remote; - return 0; - } -} - -static int isi_graph_init(struct atmel_isi *isi) -{ - struct v4l2_async_subdev **subdevs = NULL; - int ret; - - /* Parse the graph to extract a list of subdevice DT nodes. */ - ret = isi_graph_parse(isi, isi->dev->of_node); - if (ret < 0) { - dev_err(isi->dev, "Graph parsing failed\n"); - return ret; - } - - /* Register the subdevices notifier. */ - subdevs = devm_kzalloc(isi->dev, sizeof(*subdevs), GFP_KERNEL); - if (subdevs == NULL) { - of_node_put(isi->entity.node); - return -ENOMEM; - } - - subdevs[0] = &isi->entity.asd; - - isi->notifier.subdevs = subdevs; - isi->notifier.num_subdevs = 1; - isi->notifier.bound = isi_graph_notify_bound; - isi->notifier.unbind = isi_graph_notify_unbind; - isi->notifier.complete = isi_graph_notify_complete; - - ret = v4l2_async_notifier_register(&isi->v4l2_dev, &isi->notifier); - if (ret < 0) { - dev_err(isi->dev, "Notifier registration failed\n"); - of_node_put(isi->entity.node); - return ret; - } - - return 0; -} - - -static int atmel_isi_probe(struct platform_device *pdev) -{ - int irq; - struct atmel_isi *isi; - struct vb2_queue *q; - struct resource *regs; - int ret, i; - - isi = devm_kzalloc(&pdev->dev, sizeof(struct atmel_isi), GFP_KERNEL); - if (!isi) { - dev_err(&pdev->dev, "Can't allocate interface!\n"); - return -ENOMEM; - } - - isi->pclk = devm_clk_get(&pdev->dev, "isi_clk"); - if (IS_ERR(isi->pclk)) - return PTR_ERR(isi->pclk); - - ret = atmel_isi_parse_dt(isi, pdev); - if (ret) - return ret; - - isi->active = NULL; - isi->dev = &pdev->dev; - mutex_init(&isi->lock); - spin_lock_init(&isi->irqlock); - INIT_LIST_HEAD(&isi->video_buffer_list); - INIT_LIST_HEAD(&isi->dma_desc_head); - - q = &isi->queue; - - /* Initialize the top-level structure */ - ret = v4l2_device_register(&pdev->dev, &isi->v4l2_dev); - if (ret) - return ret; - - isi->vdev = video_device_alloc(); - if (isi->vdev == NULL) { - ret = -ENOMEM; - goto err_vdev_alloc; - } - - /* video node */ - isi->vdev->fops = &isi_fops; - isi->vdev->v4l2_dev = &isi->v4l2_dev; - isi->vdev->queue = &isi->queue; - strlcpy(isi->vdev->name, KBUILD_MODNAME, sizeof(isi->vdev->name)); - isi->vdev->release = video_device_release; - isi->vdev->ioctl_ops = &isi_ioctl_ops; - isi->vdev->lock = &isi->lock; - isi->vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | - V4L2_CAP_READWRITE; - video_set_drvdata(isi->vdev, isi); - - /* buffer queue */ - q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - q->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF; - q->lock = &isi->lock; - q->drv_priv = isi; - q->buf_struct_size = sizeof(struct frame_buffer); - q->ops = &isi_video_qops; - q->mem_ops = &vb2_dma_contig_memops; - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; - q->dev = &pdev->dev; - - ret = vb2_queue_init(q); - if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize VB2 queue\n"); - goto err_vb2_queue; - } - isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev, - sizeof(struct fbd) * VIDEO_MAX_FRAME, - &isi->fb_descriptors_phys, - GFP_KERNEL); - if (!isi->p_fb_descriptors) { - dev_err(&pdev->dev, "Can't allocate descriptors!\n"); - ret = -ENOMEM; - goto err_dma_alloc; - } - - for (i = 0; i < VIDEO_MAX_FRAME; i++) { - isi->dma_desc[i].p_fbd = isi->p_fb_descriptors + i; - isi->dma_desc[i].fbd_phys = isi->fb_descriptors_phys + - i * sizeof(struct fbd); - list_add(&isi->dma_desc[i].list, &isi->dma_desc_head); - } - - regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - isi->regs = devm_ioremap_resource(&pdev->dev, regs); - if (IS_ERR(isi->regs)) { - ret = PTR_ERR(isi->regs); - goto err_ioremap; - } - - if (isi->pdata.data_width_flags & ISI_DATAWIDTH_8) - isi->width_flags = 1 << 7; - if (isi->pdata.data_width_flags & ISI_DATAWIDTH_10) - isi->width_flags |= 1 << 9; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - ret = irq; - goto err_req_irq; - } - - ret = devm_request_irq(&pdev->dev, irq, isi_interrupt, 0, "isi", isi); - if (ret) { - dev_err(&pdev->dev, "Unable to request irq %d\n", irq); - goto err_req_irq; - } - isi->irq = irq; - - ret = isi_graph_init(isi); - if (ret < 0) - goto err_req_irq; - - pm_suspend_ignore_children(&pdev->dev, true); - pm_runtime_enable(&pdev->dev); - platform_set_drvdata(pdev, isi); - return 0; - -err_req_irq: -err_ioremap: - dma_free_coherent(&pdev->dev, - sizeof(struct fbd) * VIDEO_MAX_FRAME, - isi->p_fb_descriptors, - isi->fb_descriptors_phys); -err_dma_alloc: -err_vb2_queue: - video_device_release(isi->vdev); -err_vdev_alloc: - v4l2_device_unregister(&isi->v4l2_dev); - - return ret; -} - -static int atmel_isi_remove(struct platform_device *pdev) -{ - struct atmel_isi *isi = platform_get_drvdata(pdev); - - dma_free_coherent(&pdev->dev, - sizeof(struct fbd) * VIDEO_MAX_FRAME, - isi->p_fb_descriptors, - isi->fb_descriptors_phys); - pm_runtime_disable(&pdev->dev); - v4l2_async_notifier_unregister(&isi->notifier); - v4l2_device_unregister(&isi->v4l2_dev); - - return 0; -} - -#ifdef CONFIG_PM -static int atmel_isi_runtime_suspend(struct device *dev) -{ - struct atmel_isi *isi = dev_get_drvdata(dev); - - clk_disable_unprepare(isi->pclk); - - return 0; -} -static int atmel_isi_runtime_resume(struct device *dev) -{ - struct atmel_isi *isi = dev_get_drvdata(dev); - - return clk_prepare_enable(isi->pclk); -} -#endif /* CONFIG_PM */ - -static const struct dev_pm_ops atmel_isi_dev_pm_ops = { - SET_RUNTIME_PM_OPS(atmel_isi_runtime_suspend, - atmel_isi_runtime_resume, NULL) -}; - -static const struct of_device_id atmel_isi_of_match[] = { - { .compatible = "atmel,at91sam9g45-isi" }, - { } -}; -MODULE_DEVICE_TABLE(of, atmel_isi_of_match); - -static struct platform_driver atmel_isi_driver = { - .driver = { - .name = "atmel_isi", - .of_match_table = of_match_ptr(atmel_isi_of_match), - .pm = &atmel_isi_dev_pm_ops, - }, - .probe = atmel_isi_probe, - .remove = atmel_isi_remove, -}; - -module_platform_driver(atmel_isi_driver); - -MODULE_AUTHOR("Josh Wu <josh.wu@atmel.com>"); -MODULE_DESCRIPTION("The V4L2 driver for Atmel Linux"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("video"); diff --git a/drivers/media/platform/soc_camera/atmel-isi.h b/drivers/media/platform/soc_camera/atmel-isi.h deleted file mode 100644 index 0acb32a2b65c..000000000000 --- a/drivers/media/platform/soc_camera/atmel-isi.h +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Register definitions for the Atmel Image Sensor Interface. - * - * Copyright (C) 2011 Atmel Corporation - * Josh Wu, <josh.wu@atmel.com> - * - * Based on previous work by Lars Haring, <lars.haring@atmel.com> - * and Sedji Gaouaou - * - * 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. - */ -#ifndef __ATMEL_ISI_H__ -#define __ATMEL_ISI_H__ - -#include <linux/types.h> - -/* ISI_V2 register offsets */ -#define ISI_CFG1 0x0000 -#define ISI_CFG2 0x0004 -#define ISI_PSIZE 0x0008 -#define ISI_PDECF 0x000c -#define ISI_Y2R_SET0 0x0010 -#define ISI_Y2R_SET1 0x0014 -#define ISI_R2Y_SET0 0x0018 -#define ISI_R2Y_SET1 0x001C -#define ISI_R2Y_SET2 0x0020 -#define ISI_CTRL 0x0024 -#define ISI_STATUS 0x0028 -#define ISI_INTEN 0x002C -#define ISI_INTDIS 0x0030 -#define ISI_INTMASK 0x0034 -#define ISI_DMA_CHER 0x0038 -#define ISI_DMA_CHDR 0x003C -#define ISI_DMA_CHSR 0x0040 -#define ISI_DMA_P_ADDR 0x0044 -#define ISI_DMA_P_CTRL 0x0048 -#define ISI_DMA_P_DSCR 0x004C -#define ISI_DMA_C_ADDR 0x0050 -#define ISI_DMA_C_CTRL 0x0054 -#define ISI_DMA_C_DSCR 0x0058 - -/* Bitfields in CFG1 */ -#define ISI_CFG1_HSYNC_POL_ACTIVE_LOW (1 << 2) -#define ISI_CFG1_VSYNC_POL_ACTIVE_LOW (1 << 3) -#define ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING (1 << 4) -#define ISI_CFG1_EMB_SYNC (1 << 6) -#define ISI_CFG1_CRC_SYNC (1 << 7) -/* Constants for FRATE(ISI_V2) */ -#define ISI_CFG1_FRATE_CAPTURE_ALL (0 << 8) -#define ISI_CFG1_FRATE_DIV_2 (1 << 8) -#define ISI_CFG1_FRATE_DIV_3 (2 << 8) -#define ISI_CFG1_FRATE_DIV_4 (3 << 8) -#define ISI_CFG1_FRATE_DIV_5 (4 << 8) -#define ISI_CFG1_FRATE_DIV_6 (5 << 8) -#define ISI_CFG1_FRATE_DIV_7 (6 << 8) -#define ISI_CFG1_FRATE_DIV_8 (7 << 8) -#define ISI_CFG1_FRATE_DIV_MASK (7 << 8) -#define ISI_CFG1_DISCR (1 << 11) -#define ISI_CFG1_FULL_MODE (1 << 12) -/* Definition for THMASK(ISI_V2) */ -#define ISI_CFG1_THMASK_BEATS_4 (0 << 13) -#define ISI_CFG1_THMASK_BEATS_8 (1 << 13) -#define ISI_CFG1_THMASK_BEATS_16 (2 << 13) - -/* Bitfields in CFG2 */ -#define ISI_CFG2_GRAYSCALE (1 << 13) -#define ISI_CFG2_COL_SPACE_YCbCr (0 << 15) -#define ISI_CFG2_COL_SPACE_RGB (1 << 15) -/* Constants for YCC_SWAP(ISI_V2) */ -#define ISI_CFG2_YCC_SWAP_DEFAULT (0 << 28) -#define ISI_CFG2_YCC_SWAP_MODE_1 (1 << 28) -#define ISI_CFG2_YCC_SWAP_MODE_2 (2 << 28) -#define ISI_CFG2_YCC_SWAP_MODE_3 (3 << 28) -#define ISI_CFG2_YCC_SWAP_MODE_MASK (3 << 28) -#define ISI_CFG2_IM_VSIZE_OFFSET 0 -#define ISI_CFG2_IM_HSIZE_OFFSET 16 -#define ISI_CFG2_IM_VSIZE_MASK (0x7FF << ISI_CFG2_IM_VSIZE_OFFSET) -#define ISI_CFG2_IM_HSIZE_MASK (0x7FF << ISI_CFG2_IM_HSIZE_OFFSET) - -/* Bitfields in PSIZE */ -#define ISI_PSIZE_PREV_VSIZE_OFFSET 0 -#define ISI_PSIZE_PREV_HSIZE_OFFSET 16 -#define ISI_PSIZE_PREV_VSIZE_MASK (0x3FF << ISI_PSIZE_PREV_VSIZE_OFFSET) -#define ISI_PSIZE_PREV_HSIZE_MASK (0x3FF << ISI_PSIZE_PREV_HSIZE_OFFSET) - -/* Bitfields in PDECF */ -#define ISI_PDECF_DEC_FACTOR_MASK (0xFF << 0) -#define ISI_PDECF_NO_SAMPLING (16) - -/* Bitfields in CTRL */ -/* Also using in SR(ISI_V2) */ -#define ISI_CTRL_EN (1 << 0) -#define ISI_CTRL_CDC (1 << 8) -/* Also using in SR/IER/IDR/IMR(ISI_V2) */ -#define ISI_CTRL_DIS (1 << 1) -#define ISI_CTRL_SRST (1 << 2) - -/* Bitfields in SR */ -#define ISI_SR_SIP (1 << 19) -/* Also using in SR/IER/IDR/IMR */ -#define ISI_SR_VSYNC (1 << 10) -#define ISI_SR_PXFR_DONE (1 << 16) -#define ISI_SR_CXFR_DONE (1 << 17) -#define ISI_SR_P_OVR (1 << 24) -#define ISI_SR_C_OVR (1 << 25) -#define ISI_SR_CRC_ERR (1 << 26) -#define ISI_SR_FR_OVR (1 << 27) - -/* Bitfields in DMA_C_CTRL & in DMA_P_CTRL */ -#define ISI_DMA_CTRL_FETCH (1 << 0) -#define ISI_DMA_CTRL_WB (1 << 1) -#define ISI_DMA_CTRL_IEN (1 << 2) -#define ISI_DMA_CTRL_DONE (1 << 3) - -/* Bitfields in DMA_CHSR/CHER/CHDR */ -#define ISI_DMA_CHSR_P_CH (1 << 0) -#define ISI_DMA_CHSR_C_CH (1 << 1) - -/* Definition for isi_platform_data */ -#define ISI_DATAWIDTH_8 0x01 -#define ISI_DATAWIDTH_10 0x02 - -struct v4l2_async_subdev; - -struct isi_platform_data { - u8 has_emb_sync; - u8 hsync_act_low; - u8 vsync_act_low; - u8 pclk_act_falling; - u8 full_mode; - u32 data_width_flags; - /* Using for ISI_CFG1 */ - u32 frate; -}; - -#endif /* __ATMEL_ISI_H__ */ |