[media] v4l: omap4iss: Add support for OMAP4 camera interface - IPIPE(IF)
This adds a very simplistic driver to utilize the CSI2A interface inside the ISS subsystem in OMAP4, and dump the data to memory. Check Documentation/video4linux/omap4_camera.txt for details. This commit adds the IPIPEIF and IPIPE processing blocks support. Signed-off-by: Sergio Aguirre <sergio.a.aguirre@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sergio Aguirre
Mauro Carvalho Chehab
parent
b4a0477c0b
commit
714148260d
581
drivers/staging/media/omap4iss/iss_ipipe.c
Normal file
581
drivers/staging/media/omap4iss/iss_ipipe.c
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@ -0,0 +1,581 @@
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/*
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* TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
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*
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* Copyright (C) 2012 Texas Instruments, Inc.
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*
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* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/uaccess.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include "iss.h"
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#include "iss_regs.h"
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#include "iss_ipipe.h"
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static struct v4l2_mbus_framefmt *
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__ipipe_get_format(struct iss_ipipe_device *ipipe, struct v4l2_subdev_fh *fh,
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unsigned int pad, enum v4l2_subdev_format_whence which);
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static const unsigned int ipipe_fmts[] = {
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V4L2_MBUS_FMT_SGRBG10_1X10,
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V4L2_MBUS_FMT_SRGGB10_1X10,
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V4L2_MBUS_FMT_SBGGR10_1X10,
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V4L2_MBUS_FMT_SGBRG10_1X10,
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};
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/*
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* ipipe_print_status - Print current IPIPE Module register values.
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* @ipipe: Pointer to ISS ISP IPIPE device.
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*
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* Also prints other debug information stored in the IPIPE module.
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*/
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#define IPIPE_PRINT_REGISTER(iss, name)\
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dev_dbg(iss->dev, "###IPIPE " #name "=0x%08x\n", \
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readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_##name))
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static void ipipe_print_status(struct iss_ipipe_device *ipipe)
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{
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struct iss_device *iss = to_iss_device(ipipe);
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dev_dbg(iss->dev, "-------------IPIPE Register dump-------------\n");
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IPIPE_PRINT_REGISTER(iss, SRC_EN);
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IPIPE_PRINT_REGISTER(iss, SRC_MODE);
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IPIPE_PRINT_REGISTER(iss, SRC_FMT);
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IPIPE_PRINT_REGISTER(iss, SRC_COL);
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IPIPE_PRINT_REGISTER(iss, SRC_VPS);
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IPIPE_PRINT_REGISTER(iss, SRC_VSZ);
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IPIPE_PRINT_REGISTER(iss, SRC_HPS);
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IPIPE_PRINT_REGISTER(iss, SRC_HSZ);
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IPIPE_PRINT_REGISTER(iss, GCK_MMR);
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IPIPE_PRINT_REGISTER(iss, YUV_PHS);
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dev_dbg(iss->dev, "-----------------------------------------------\n");
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}
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/*
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* ipipe_enable - Enable/Disable IPIPE.
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* @enable: enable flag
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*
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*/
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static void ipipe_enable(struct iss_ipipe_device *ipipe, u8 enable)
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{
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struct iss_device *iss = to_iss_device(ipipe);
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writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_EN) &
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~IPIPE_SRC_EN_EN) |
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enable ? IPIPE_SRC_EN_EN : 0,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_EN);
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}
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/* -----------------------------------------------------------------------------
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* Format- and pipeline-related configuration helpers
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*/
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static void ipipe_configure(struct iss_ipipe_device *ipipe)
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{
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struct iss_device *iss = to_iss_device(ipipe);
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struct v4l2_mbus_framefmt *format;
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/* IPIPE_PAD_SINK */
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format = &ipipe->formats[IPIPE_PAD_SINK];
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/* NOTE: Currently just supporting pipeline IN: RGB, OUT: YUV422 */
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writel(IPIPE_SRC_FMT_RAW2YUV,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_FMT);
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/* Enable YUV444 -> YUV422 conversion */
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writel(IPIPE_YUV_PHS_LPF,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_YUV_PHS);
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writel(0, iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_VPS);
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writel(0, iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_HPS);
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writel((format->height - 2) & IPIPE_SRC_VSZ_MASK,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_VSZ);
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writel((format->width - 1) & IPIPE_SRC_HSZ_MASK,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_HSZ);
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/* Ignore ipipeif_wrt signal, and operate on-the-fly. */
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writel(readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_MODE) &
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~(IPIPE_SRC_MODE_WRT | IPIPE_SRC_MODE_OST),
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_MODE);
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/* HACK: Values tuned for Ducati SW (OV) */
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writel(IPIPE_SRC_COL_EE_B |
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IPIPE_SRC_COL_EO_GB |
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IPIPE_SRC_COL_OE_GR |
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IPIPE_SRC_COL_OO_R,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_SRC_COL);
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/* IPIPE_PAD_SOURCE_VP */
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format = &ipipe->formats[IPIPE_PAD_SOURCE_VP];
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/* Do nothing? */
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omap4iss_isp_enable_interrupts(iss);
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}
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/* -----------------------------------------------------------------------------
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* V4L2 subdev operations
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*/
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/*
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* ipipe_set_stream - Enable/Disable streaming on the IPIPE module
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* @sd: ISP IPIPE V4L2 subdevice
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* @enable: Enable/disable stream
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*/
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static int ipipe_set_stream(struct v4l2_subdev *sd, int enable)
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{
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struct iss_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
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struct iss_device *iss = to_iss_device(ipipe);
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int ret = 0;
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if (ipipe->state == ISS_PIPELINE_STREAM_STOPPED) {
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if (enable == ISS_PIPELINE_STREAM_STOPPED)
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return 0;
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omap4iss_isp_subclk_enable(iss, OMAP4_ISS_ISP_SUBCLK_IPIPE);
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/* Enable clk_arm_g0 */
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writel(IPIPE_GCK_MMR_REG,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_GCK_MMR);
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/* Enable clk_pix_g[3:0] */
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writel(IPIPE_GCK_PIX_G3 |
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IPIPE_GCK_PIX_G2 |
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IPIPE_GCK_PIX_G1 |
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IPIPE_GCK_PIX_G0,
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iss->regs[OMAP4_ISS_MEM_ISP_IPIPE] + IPIPE_GCK_PIX);
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}
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switch (enable) {
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case ISS_PIPELINE_STREAM_CONTINUOUS:
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ipipe_configure(ipipe);
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ipipe_print_status(ipipe);
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atomic_set(&ipipe->stopping, 0);
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ipipe_enable(ipipe, 1);
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break;
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case ISS_PIPELINE_STREAM_STOPPED:
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if (ipipe->state == ISS_PIPELINE_STREAM_STOPPED)
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return 0;
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if (omap4iss_module_sync_idle(&sd->entity, &ipipe->wait,
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&ipipe->stopping))
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dev_dbg(iss->dev, "%s: module stop timeout.\n",
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sd->name);
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ipipe_enable(ipipe, 0);
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omap4iss_isp_disable_interrupts(iss);
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omap4iss_isp_subclk_disable(iss, OMAP4_ISS_ISP_SUBCLK_IPIPE);
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break;
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}
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ipipe->state = enable;
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return ret;
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}
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static struct v4l2_mbus_framefmt *
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__ipipe_get_format(struct iss_ipipe_device *ipipe, struct v4l2_subdev_fh *fh,
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unsigned int pad, enum v4l2_subdev_format_whence which)
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{
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if (which == V4L2_SUBDEV_FORMAT_TRY)
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return v4l2_subdev_get_try_format(fh, pad);
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else
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return &ipipe->formats[pad];
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}
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/*
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* ipipe_try_format - Try video format on a pad
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* @ipipe: ISS IPIPE device
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* @fh : V4L2 subdev file handle
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* @pad: Pad number
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* @fmt: Format
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*/
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static void
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ipipe_try_format(struct iss_ipipe_device *ipipe, struct v4l2_subdev_fh *fh,
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unsigned int pad, struct v4l2_mbus_framefmt *fmt,
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enum v4l2_subdev_format_whence which)
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{
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struct v4l2_mbus_framefmt *format;
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unsigned int width = fmt->width;
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unsigned int height = fmt->height;
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unsigned int i;
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switch (pad) {
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case IPIPE_PAD_SINK:
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for (i = 0; i < ARRAY_SIZE(ipipe_fmts); i++) {
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if (fmt->code == ipipe_fmts[i])
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break;
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}
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/* If not found, use SGRBG10 as default */
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if (i >= ARRAY_SIZE(ipipe_fmts))
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fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10;
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/* Clamp the input size. */
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fmt->width = clamp_t(u32, width, 1, 8192);
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fmt->height = clamp_t(u32, height, 1, 8192);
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fmt->colorspace = V4L2_COLORSPACE_SRGB;
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break;
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case IPIPE_PAD_SOURCE_VP:
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format = __ipipe_get_format(ipipe, fh, IPIPE_PAD_SINK, which);
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memcpy(fmt, format, sizeof(*fmt));
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fmt->code = V4L2_MBUS_FMT_UYVY8_1X16;
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fmt->width = clamp_t(u32, width, 32, fmt->width);
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fmt->height = clamp_t(u32, height, 32, fmt->height);
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fmt->colorspace = V4L2_COLORSPACE_JPEG;
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break;
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}
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fmt->field = V4L2_FIELD_NONE;
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}
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/*
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* ipipe_enum_mbus_code - Handle pixel format enumeration
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* @sd : pointer to v4l2 subdev structure
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* @fh : V4L2 subdev file handle
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* @code : pointer to v4l2_subdev_mbus_code_enum structure
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* return -EINVAL or zero on success
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*/
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static int ipipe_enum_mbus_code(struct v4l2_subdev *sd,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_mbus_code_enum *code)
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{
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switch (code->pad) {
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case IPIPE_PAD_SINK:
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if (code->index >= ARRAY_SIZE(ipipe_fmts))
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return -EINVAL;
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code->code = ipipe_fmts[code->index];
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break;
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case IPIPE_PAD_SOURCE_VP:
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/* FIXME: Forced format conversion inside IPIPE ? */
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if (code->index != 0)
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return -EINVAL;
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code->code = V4L2_MBUS_FMT_UYVY8_1X16;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int ipipe_enum_frame_size(struct v4l2_subdev *sd,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_frame_size_enum *fse)
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{
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struct iss_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
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struct v4l2_mbus_framefmt format;
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if (fse->index != 0)
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return -EINVAL;
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format.code = fse->code;
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format.width = 1;
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format.height = 1;
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ipipe_try_format(ipipe, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
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fse->min_width = format.width;
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fse->min_height = format.height;
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if (format.code != fse->code)
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return -EINVAL;
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format.code = fse->code;
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format.width = -1;
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format.height = -1;
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ipipe_try_format(ipipe, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
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fse->max_width = format.width;
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fse->max_height = format.height;
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return 0;
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}
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/*
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* ipipe_get_format - Retrieve the video format on a pad
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* @sd : ISP IPIPE V4L2 subdevice
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* @fh : V4L2 subdev file handle
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* @fmt: Format
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*
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* Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
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* to the format type.
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*/
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static int ipipe_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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struct iss_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
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struct v4l2_mbus_framefmt *format;
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format = __ipipe_get_format(ipipe, fh, fmt->pad, fmt->which);
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if (format == NULL)
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return -EINVAL;
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fmt->format = *format;
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return 0;
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}
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/*
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* ipipe_set_format - Set the video format on a pad
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* @sd : ISP IPIPE V4L2 subdevice
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* @fh : V4L2 subdev file handle
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* @fmt: Format
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*
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* Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
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* to the format type.
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*/
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static int ipipe_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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struct iss_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
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struct v4l2_mbus_framefmt *format;
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format = __ipipe_get_format(ipipe, fh, fmt->pad, fmt->which);
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if (format == NULL)
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return -EINVAL;
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ipipe_try_format(ipipe, fh, fmt->pad, &fmt->format, fmt->which);
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*format = fmt->format;
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/* Propagate the format from sink to source */
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if (fmt->pad == IPIPE_PAD_SINK) {
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format = __ipipe_get_format(ipipe, fh, IPIPE_PAD_SOURCE_VP,
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fmt->which);
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*format = fmt->format;
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ipipe_try_format(ipipe, fh, IPIPE_PAD_SOURCE_VP, format,
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fmt->which);
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}
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return 0;
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}
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static int ipipe_link_validate(struct v4l2_subdev *sd, struct media_link *link,
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struct v4l2_subdev_format *source_fmt,
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struct v4l2_subdev_format *sink_fmt)
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{
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/* Check if the two ends match */
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if (source_fmt->format.width != sink_fmt->format.width ||
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source_fmt->format.height != sink_fmt->format.height)
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return -EPIPE;
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if (source_fmt->format.code != sink_fmt->format.code)
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return -EPIPE;
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return 0;
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}
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/*
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* ipipe_init_formats - Initialize formats on all pads
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* @sd: ISP IPIPE V4L2 subdevice
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* @fh: V4L2 subdev file handle
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*
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* Initialize all pad formats with default values. If fh is not NULL, try
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* formats are initialized on the file handle. Otherwise active formats are
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* initialized on the device.
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*/
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static int ipipe_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
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{
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struct v4l2_subdev_format format;
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memset(&format, 0, sizeof(format));
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format.pad = IPIPE_PAD_SINK;
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format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
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format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10;
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format.format.width = 4096;
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format.format.height = 4096;
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ipipe_set_format(sd, fh, &format);
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return 0;
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}
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/* V4L2 subdev video operations */
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static const struct v4l2_subdev_video_ops ipipe_v4l2_video_ops = {
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.s_stream = ipipe_set_stream,
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};
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/* V4L2 subdev pad operations */
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static const struct v4l2_subdev_pad_ops ipipe_v4l2_pad_ops = {
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.enum_mbus_code = ipipe_enum_mbus_code,
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.enum_frame_size = ipipe_enum_frame_size,
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.get_fmt = ipipe_get_format,
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.set_fmt = ipipe_set_format,
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.link_validate = ipipe_link_validate,
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};
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/* V4L2 subdev operations */
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static const struct v4l2_subdev_ops ipipe_v4l2_ops = {
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.video = &ipipe_v4l2_video_ops,
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.pad = &ipipe_v4l2_pad_ops,
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};
|
||||
|
||||
/* V4L2 subdev internal operations */
|
||||
static const struct v4l2_subdev_internal_ops ipipe_v4l2_internal_ops = {
|
||||
.open = ipipe_init_formats,
|
||||
};
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* Media entity operations
|
||||
*/
|
||||
|
||||
/*
|
||||
* ipipe_link_setup - Setup IPIPE connections
|
||||
* @entity: IPIPE 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 ipipe_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_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
|
||||
struct iss_device *iss = to_iss_device(ipipe);
|
||||
|
||||
switch (local->index | media_entity_type(remote->entity)) {
|
||||
case IPIPE_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
|
||||
/* Read from IPIPEIF. */
|
||||
if (!(flags & MEDIA_LNK_FL_ENABLED)) {
|
||||
ipipe->input = IPIPE_INPUT_NONE;
|
||||
break;
|
||||
}
|
||||
|
||||
if (ipipe->input != IPIPE_INPUT_NONE)
|
||||
return -EBUSY;
|
||||
|
||||
if (remote->entity == &iss->ipipeif.subdev.entity)
|
||||
ipipe->input = IPIPE_INPUT_IPIPEIF;
|
||||
|
||||
break;
|
||||
|
||||
case IPIPE_PAD_SOURCE_VP | MEDIA_ENT_T_V4L2_SUBDEV:
|
||||
/* Send to RESIZER */
|
||||
if (flags & MEDIA_LNK_FL_ENABLED) {
|
||||
if (ipipe->output & ~IPIPE_OUTPUT_VP)
|
||||
return -EBUSY;
|
||||
ipipe->output |= IPIPE_OUTPUT_VP;
|
||||
} else {
|
||||
ipipe->output &= ~IPIPE_OUTPUT_VP;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* media operations */
|
||||
static const struct media_entity_operations ipipe_media_ops = {
|
||||
.link_setup = ipipe_link_setup,
|
||||
.link_validate = v4l2_subdev_link_validate,
|
||||
};
|
||||
|
||||
/*
|
||||
* ipipe_init_entities - Initialize V4L2 subdev and media entity
|
||||
* @ipipe: ISS ISP IPIPE module
|
||||
*
|
||||
* Return 0 on success and a negative error code on failure.
|
||||
*/
|
||||
static int ipipe_init_entities(struct iss_ipipe_device *ipipe)
|
||||
{
|
||||
struct v4l2_subdev *sd = &ipipe->subdev;
|
||||
struct media_pad *pads = ipipe->pads;
|
||||
struct media_entity *me = &sd->entity;
|
||||
int ret;
|
||||
|
||||
ipipe->input = IPIPE_INPUT_NONE;
|
||||
|
||||
v4l2_subdev_init(sd, &ipipe_v4l2_ops);
|
||||
sd->internal_ops = &ipipe_v4l2_internal_ops;
|
||||
strlcpy(sd->name, "OMAP4 ISS ISP IPIPE", sizeof(sd->name));
|
||||
sd->grp_id = 1 << 16; /* group ID for iss subdevs */
|
||||
v4l2_set_subdevdata(sd, ipipe);
|
||||
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
||||
|
||||
pads[IPIPE_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
|
||||
pads[IPIPE_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
|
||||
|
||||
me->ops = &ipipe_media_ops;
|
||||
ret = media_entity_init(me, IPIPE_PADS_NUM, pads, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ipipe_init_formats(sd, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe)
|
||||
{
|
||||
media_entity_cleanup(&ipipe->subdev.entity);
|
||||
|
||||
v4l2_device_unregister_subdev(&ipipe->subdev);
|
||||
}
|
||||
|
||||
int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
|
||||
struct v4l2_device *vdev)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/* Register the subdev and video node. */
|
||||
ret = v4l2_device_register_subdev(vdev, &ipipe->subdev);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
|
||||
return 0;
|
||||
|
||||
error:
|
||||
omap4iss_ipipe_unregister_entities(ipipe);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* ISP IPIPE initialisation and cleanup
|
||||
*/
|
||||
|
||||
/*
|
||||
* omap4iss_ipipe_init - IPIPE 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_ipipe_init(struct iss_device *iss)
|
||||
{
|
||||
struct iss_ipipe_device *ipipe = &iss->ipipe;
|
||||
|
||||
ipipe->state = ISS_PIPELINE_STREAM_STOPPED;
|
||||
init_waitqueue_head(&ipipe->wait);
|
||||
|
||||
return ipipe_init_entities(ipipe);
|
||||
}
|
||||
|
||||
/*
|
||||
* omap4iss_ipipe_cleanup - IPIPE module cleanup.
|
||||
* @iss: Device pointer specific to the OMAP4 ISS.
|
||||
*/
|
||||
void omap4iss_ipipe_cleanup(struct iss_device *iss)
|
||||
{
|
||||
/* FIXME: are you sure there's nothing to do? */
|
||||
}
|
||||
67
drivers/staging/media/omap4iss/iss_ipipe.h
Normal file
67
drivers/staging/media/omap4iss/iss_ipipe.h
Normal file
@ -0,0 +1,67 @@
|
||||
/*
|
||||
* TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
|
||||
*
|
||||
* Copyright (C) 2012 Texas Instruments, Inc.
|
||||
*
|
||||
* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef OMAP4_ISS_IPIPE_H
|
||||
#define OMAP4_ISS_IPIPE_H
|
||||
|
||||
#include "iss_video.h"
|
||||
|
||||
enum ipipe_input_entity {
|
||||
IPIPE_INPUT_NONE,
|
||||
IPIPE_INPUT_IPIPEIF,
|
||||
};
|
||||
|
||||
#define IPIPE_OUTPUT_VP (1 << 0)
|
||||
|
||||
/* Sink and source IPIPE pads */
|
||||
#define IPIPE_PAD_SINK 0
|
||||
#define IPIPE_PAD_SOURCE_VP 1
|
||||
#define IPIPE_PADS_NUM 2
|
||||
|
||||
/*
|
||||
* struct iss_ipipe_device - Structure for the IPIPE module to store its own
|
||||
* information
|
||||
* @subdev: V4L2 subdevice
|
||||
* @pads: Sink and source media entity pads
|
||||
* @formats: Active video formats
|
||||
* @input: Active input
|
||||
* @output: Active outputs
|
||||
* @error: A hardware error occurred during capture
|
||||
* @state: Streaming state
|
||||
* @wait: Wait queue used to stop the module
|
||||
* @stopping: Stopping state
|
||||
*/
|
||||
struct iss_ipipe_device {
|
||||
struct v4l2_subdev subdev;
|
||||
struct media_pad pads[IPIPE_PADS_NUM];
|
||||
struct v4l2_mbus_framefmt formats[IPIPE_PADS_NUM];
|
||||
|
||||
enum ipipe_input_entity input;
|
||||
unsigned int output;
|
||||
unsigned int error;
|
||||
|
||||
enum iss_pipeline_stream_state state;
|
||||
wait_queue_head_t wait;
|
||||
atomic_t stopping;
|
||||
};
|
||||
|
||||
struct iss_device;
|
||||
|
||||
int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
|
||||
struct v4l2_device *vdev);
|
||||
void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe);
|
||||
|
||||
int omap4iss_ipipe_init(struct iss_device *iss);
|
||||
void omap4iss_ipipe_cleanup(struct iss_device *iss);
|
||||
|
||||
#endif /* OMAP4_ISS_IPIPE_H */
|
||||
847
drivers/staging/media/omap4iss/iss_ipipeif.c
Normal file
847
drivers/staging/media/omap4iss/iss_ipipeif.c
Normal file
@ -0,0 +1,847 @@
|
||||
/*
|
||||
* TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module
|
||||
*
|
||||
* Copyright (C) 2012 Texas Instruments, Inc.
|
||||
*
|
||||
* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#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 struct v4l2_mbus_framefmt *
|
||||
__ipipeif_get_format(struct iss_ipipeif_device *ipipeif, struct v4l2_subdev_fh *fh,
|
||||
unsigned int pad, enum v4l2_subdev_format_whence which);
|
||||
|
||||
static const unsigned int ipipeif_fmts[] = {
|
||||
V4L2_MBUS_FMT_SGRBG10_1X10,
|
||||
V4L2_MBUS_FMT_SRGGB10_1X10,
|
||||
V4L2_MBUS_FMT_SBGGR10_1X10,
|
||||
V4L2_MBUS_FMT_SGBRG10_1X10,
|
||||
V4L2_MBUS_FMT_UYVY8_1X16,
|
||||
V4L2_MBUS_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", \
|
||||
readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_##name))
|
||||
|
||||
#define ISIF_PRINT_REGISTER(iss, name)\
|
||||
dev_dbg(iss->dev, "###ISIF " #name "=0x%08x\n", \
|
||||
readl(iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_##name))
|
||||
|
||||
#define ISP5_PRINT_REGISTER(iss, name)\
|
||||
dev_dbg(iss->dev, "###ISP5 " #name "=0x%08x\n", \
|
||||
readl(iss->regs[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, VDINT0);
|
||||
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);
|
||||
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_SYNCEN) &
|
||||
~ISIF_SYNCEN_DWEN) |
|
||||
enable ? ISIF_SYNCEN_DWEN : 0,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_SYNCEN);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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);
|
||||
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_SYNCEN) &
|
||||
~ISIF_SYNCEN_SYEN) |
|
||||
enable ? ISIF_SYNCEN_SYEN : 0,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_SYNCEN);
|
||||
}
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* 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 splitted in Base Address H & L */
|
||||
writel((addr >> (16 + 5)) & ISIF_CADU_MASK,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_CADU);
|
||||
writel((addr >> 5) & ISIF_CADL_MASK,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_CADL);
|
||||
}
|
||||
|
||||
static void ipipeif_configure(struct iss_ipipeif_device *ipipeif)
|
||||
{
|
||||
struct iss_device *iss = to_iss_device(ipipeif);
|
||||
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 */
|
||||
writel(readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG1) &
|
||||
~(IPIPEIF_CFG1_INPSRC1_MASK | IPIPEIF_CFG1_INPSRC2_MASK),
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG1);
|
||||
|
||||
/* Select ISIF/IPIPEIF input format */
|
||||
switch (format->code) {
|
||||
case V4L2_MBUS_FMT_UYVY8_1X16:
|
||||
case V4L2_MBUS_FMT_YUYV8_1X16:
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_MODESET) &
|
||||
~(ISIF_MODESET_CCDMD |
|
||||
ISIF_MODESET_INPMOD_MASK |
|
||||
ISIF_MODESET_CCDW_MASK)) |
|
||||
ISIF_MODESET_INPMOD_YCBCR16,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_MODESET);
|
||||
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG2) &
|
||||
~IPIPEIF_CFG2_YUV8) |
|
||||
IPIPEIF_CFG2_YUV16,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG2);
|
||||
|
||||
break;
|
||||
case V4L2_MBUS_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 V4L2_MBUS_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 V4L2_MBUS_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 V4L2_MBUS_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:
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG2) &
|
||||
~IPIPEIF_CFG2_YUV16),
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_IPIPEIF] + IPIPEIF_CFG2);
|
||||
|
||||
writel((readl(iss->regs[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,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_MODESET);
|
||||
|
||||
writel((readl(iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_CGAMMAWD) &
|
||||
~ISIF_CGAMMAWD_GWDI_MASK) |
|
||||
ISIF_CGAMMAWD_GWDI_BIT11,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_CGAMMAWD);
|
||||
|
||||
/* Set RAW Bayer pattern */
|
||||
writel(isif_ccolp,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_CCOLP);
|
||||
break;
|
||||
}
|
||||
|
||||
writel(0 & ISIF_SPH_MASK, iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_SPH);
|
||||
writel((format->width - 1) & ISIF_LNH_MASK,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_LNH);
|
||||
writel((format->height - 1) & ISIF_LNV_MASK,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_LNV);
|
||||
|
||||
/* Generate ISIF0 on the last line of the image */
|
||||
writel(format->height - 1,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_VDINT0);
|
||||
|
||||
/* IPIPEIF_PAD_SOURCE_ISIF_SF */
|
||||
format = &ipipeif->formats[IPIPEIF_PAD_SOURCE_ISIF_SF];
|
||||
|
||||
writel((ipipeif->video_out.bpl_value >> 5) & ISIF_HSIZE_HSIZE_MASK,
|
||||
iss->regs[OMAP4_ISS_MEM_ISP_ISIF] + ISIF_HSIZE);
|
||||
|
||||
/* IPIPEIF_PAD_SOURCE_VP */
|
||||
/* Do nothing? */
|
||||
|
||||
omap4iss_isp_enable_interrupts(iss);
|
||||
}
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* Interrupt handling
|
||||
*/
|
||||
|
||||
static void ipipeif_isr_buffer(struct iss_ipipeif_device *ipipeif)
|
||||
{
|
||||
struct iss_buffer *buffer;
|
||||
|
||||
ipipeif_write_enable(ipipeif, 0);
|
||||
|
||||
buffer = omap4iss_video_buffer_next(&ipipeif->video_out);
|
||||
if (buffer == NULL)
|
||||
return;
|
||||
|
||||
ipipeif_set_outaddr(ipipeif, buffer->iss_addr);
|
||||
|
||||
ipipeif_write_enable(ipipeif, 1);
|
||||
}
|
||||
|
||||
/*
|
||||
* ipipeif_isif0_isr - Handle ISIF0 event
|
||||
* @ipipeif: Pointer to ISP IPIPEIF device.
|
||||
*
|
||||
* Executes LSC deferred enablement before next frame starts.
|
||||
*/
|
||||
static void ipipeif_isif0_isr(struct iss_ipipeif_device *ipipeif)
|
||||
{
|
||||
struct iss_pipeline *pipe =
|
||||
to_iss_pipeline(&ipipeif->subdev.entity);
|
||||
if (pipe->do_propagation)
|
||||
atomic_inc(&pipe->frame_number);
|
||||
|
||||
if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)
|
||||
ipipeif_isr_buffer(ipipeif);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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_ISIF0)
|
||||
ipipeif_isif0_isr(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))
|
||||
dev_dbg(iss->dev, "%s: module stop timeout.\n",
|
||||
sd->name);
|
||||
|
||||
if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)
|
||||
ipipeif_write_enable(ipipeif, 0);
|
||||
ipipeif_enable(ipipeif, 0);
|
||||
omap4iss_isp_disable_interrupts(iss);
|
||||
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_fh *fh,
|
||||
unsigned int pad, enum v4l2_subdev_format_whence which)
|
||||
{
|
||||
if (which == V4L2_SUBDEV_FORMAT_TRY)
|
||||
return v4l2_subdev_get_try_format(fh, pad);
|
||||
else
|
||||
return &ipipeif->formats[pad];
|
||||
}
|
||||
|
||||
/*
|
||||
* ipipeif_try_format - Try video format on a pad
|
||||
* @ipipeif: ISS IPIPEIF device
|
||||
* @fh : V4L2 subdev file handle
|
||||
* @pad: Pad number
|
||||
* @fmt: Format
|
||||
*/
|
||||
static void
|
||||
ipipeif_try_format(struct iss_ipipeif_device *ipipeif, struct v4l2_subdev_fh *fh,
|
||||
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 = V4L2_MBUS_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, fh, 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, fh, 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
|
||||
* @fh : V4L2 subdev file handle
|
||||
* @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_fh *fh,
|
||||
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, fh, IPIPEIF_PAD_SINK,
|
||||
V4L2_SUBDEV_FORMAT_TRY);
|
||||
|
||||
code->code = format->code;
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ipipeif_enum_frame_size(struct v4l2_subdev *sd,
|
||||
struct v4l2_subdev_fh *fh,
|
||||
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, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
|
||||
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, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY);
|
||||
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
|
||||
* @fh : V4L2 subdev file handle
|
||||
* @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_fh *fh,
|
||||
struct v4l2_subdev_format *fmt)
|
||||
{
|
||||
struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
|
||||
struct v4l2_mbus_framefmt *format;
|
||||
|
||||
format = __ipipeif_get_format(ipipeif, fh, fmt->pad, fmt->which);
|
||||
if (format == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
fmt->format = *format;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* ipipeif_set_format - Set the video format on a pad
|
||||
* @sd : ISP IPIPEIF V4L2 subdevice
|
||||
* @fh : V4L2 subdev file handle
|
||||
* @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_fh *fh,
|
||||
struct v4l2_subdev_format *fmt)
|
||||
{
|
||||
struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
|
||||
struct v4l2_mbus_framefmt *format;
|
||||
|
||||
format = __ipipeif_get_format(ipipeif, fh, fmt->pad, fmt->which);
|
||||
if (format == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
ipipeif_try_format(ipipeif, fh, 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, fh, IPIPEIF_PAD_SOURCE_ISIF_SF,
|
||||
fmt->which);
|
||||
*format = fmt->format;
|
||||
ipipeif_try_format(ipipeif, fh, IPIPEIF_PAD_SOURCE_ISIF_SF, format,
|
||||
fmt->which);
|
||||
|
||||
format = __ipipeif_get_format(ipipeif, fh, IPIPEIF_PAD_SOURCE_VP,
|
||||
fmt->which);
|
||||
*format = fmt->format;
|
||||
ipipeif_try_format(ipipeif, fh, 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 = V4L2_MBUS_FMT_SGRBG10_1X10;
|
||||
format.format.width = 4096;
|
||||
format.format.height = 4096;
|
||||
ipipeif_set_format(sd, fh, &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);
|
||||
|
||||
switch (local->index | media_entity_type(remote->entity)) {
|
||||
case IPIPEIF_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
|
||||
/* 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 | MEDIA_ENT_T_DEVNODE:
|
||||
/* 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 | MEDIA_ENT_T_V4L2_SUBDEV:
|
||||
/* 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;
|
||||
strlcpy(sd->name, "OMAP4 ISS ISP IPIPEIF", sizeof(sd->name));
|
||||
sd->grp_id = 1 << 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_init(me, IPIPEIF_PADS_NUM, pads, 0);
|
||||
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;
|
||||
|
||||
ret = omap4iss_video_init(&ipipeif->video_out, "ISP IPIPEIF");
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* Connect the IPIPEIF subdev to the video node. */
|
||||
ret = media_entity_create_link(&ipipeif->subdev.entity, IPIPEIF_PAD_SOURCE_ISIF_SF,
|
||||
&ipipeif->video_out.video.entity, 0, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif)
|
||||
{
|
||||
media_entity_cleanup(&ipipeif->subdev.entity);
|
||||
|
||||
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_cleanup - IPIPEIF module cleanup.
|
||||
* @iss: Device pointer specific to the OMAP4 ISS.
|
||||
*/
|
||||
void omap4iss_ipipeif_cleanup(struct iss_device *iss)
|
||||
{
|
||||
/* FIXME: are you sure there's nothing to do? */
|
||||
}
|
||||
92
drivers/staging/media/omap4iss/iss_ipipeif.h
Normal file
92
drivers/staging/media/omap4iss/iss_ipipeif.h
Normal file
@ -0,0 +1,92 @@
|
||||
/*
|
||||
* TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module
|
||||
*
|
||||
* Copyright (C) 2012 Texas Instruments, Inc.
|
||||
*
|
||||
* Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef OMAP4_ISS_IPIPEIF_H
|
||||
#define OMAP4_ISS_IPIPEIF_H
|
||||
|
||||
#include "iss_video.h"
|
||||
|
||||
enum ipipeif_input_entity {
|
||||
IPIPEIF_INPUT_NONE,
|
||||
IPIPEIF_INPUT_CSI2A,
|
||||
IPIPEIF_INPUT_CSI2B
|
||||
};
|
||||
|
||||
#define IPIPEIF_OUTPUT_MEMORY (1 << 0)
|
||||
#define IPIPEIF_OUTPUT_VP (1 << 1)
|
||||
|
||||
/* Sink and source IPIPEIF pads */
|
||||
#define IPIPEIF_PAD_SINK 0
|
||||
#define IPIPEIF_PAD_SOURCE_ISIF_SF 1
|
||||
#define IPIPEIF_PAD_SOURCE_VP 2
|
||||
#define IPIPEIF_PADS_NUM 3
|
||||
|
||||
/*
|
||||
* struct iss_ipipeif_device - Structure for the IPIPEIF module to store its own
|
||||
* information
|
||||
* @subdev: V4L2 subdevice
|
||||
* @pads: Sink and source media entity pads
|
||||
* @formats: Active video formats
|
||||
* @input: Active input
|
||||
* @output: Active outputs
|
||||
* @video_out: Output video node
|
||||
* @error: A hardware error occurred during capture
|
||||
* @alaw: A-law compression enabled (1) or disabled (0)
|
||||
* @lpf: Low pass filter enabled (1) or disabled (0)
|
||||
* @obclamp: Optical-black clamp enabled (1) or disabled (0)
|
||||
* @fpc_en: Faulty pixels correction enabled (1) or disabled (0)
|
||||
* @blcomp: Black level compensation configuration
|
||||
* @clamp: Optical-black or digital clamp configuration
|
||||
* @fpc: Faulty pixels correction configuration
|
||||
* @lsc: Lens shading compensation configuration
|
||||
* @update: Bitmask of controls to update during the next interrupt
|
||||
* @shadow_update: Controls update in progress by userspace
|
||||
* @syncif: Interface synchronization configuration
|
||||
* @vpcfg: Video port configuration
|
||||
* @underrun: A buffer underrun occurred and a new buffer has been queued
|
||||
* @state: Streaming state
|
||||
* @lock: Serializes shadow_update with interrupt handler
|
||||
* @wait: Wait queue used to stop the module
|
||||
* @stopping: Stopping state
|
||||
* @ioctl_lock: Serializes ioctl calls and LSC requests freeing
|
||||
*/
|
||||
struct iss_ipipeif_device {
|
||||
struct v4l2_subdev subdev;
|
||||
struct media_pad pads[IPIPEIF_PADS_NUM];
|
||||
struct v4l2_mbus_framefmt formats[IPIPEIF_PADS_NUM];
|
||||
|
||||
enum ipipeif_input_entity input;
|
||||
unsigned int output;
|
||||
struct iss_video video_out;
|
||||
unsigned int error;
|
||||
|
||||
enum iss_pipeline_stream_state state;
|
||||
wait_queue_head_t wait;
|
||||
atomic_t stopping;
|
||||
};
|
||||
|
||||
struct iss_device;
|
||||
|
||||
int omap4iss_ipipeif_init(struct iss_device *iss);
|
||||
void omap4iss_ipipeif_cleanup(struct iss_device *iss);
|
||||
int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif,
|
||||
struct v4l2_device *vdev);
|
||||
void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif);
|
||||
|
||||
int omap4iss_ipipeif_busy(struct iss_ipipeif_device *ipipeif);
|
||||
void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events);
|
||||
void omap4iss_ipipeif_restore_context(struct iss_device *iss);
|
||||
void omap4iss_ipipeif_max_rate(struct iss_ipipeif_device *ipipeif,
|
||||
unsigned int *max_rate);
|
||||
|
||||
#endif /* OMAP4_ISS_IPIPEIF_H */
|
||||
Loading…
Reference in New Issue
Block a user