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authorJason Chen <b02280@freescale.com>2011-08-30 17:37:52 +0800
committerEric Miao <eric.miao@linaro.org>2011-10-14 09:56:58 +0800
commite19c347e76dafcca553142fab9ba159f00b4bb5a (patch)
tree91564aa48fc21f475730f435fd6710800f790548 /drivers/media/video/mxc/output/mxc_v4l2_output.h
parent28bfd379cb4407cc8b6a73bb7037ee764014b4e4 (diff)
downloadlinux-linaro-e19c347e76dafcca553142fab9ba159f00b4bb5a.tar.gz
v4l2: add v4l2 output support for mxc
Signed-off-by: Jason Chen <b02280@freescale.com>
Diffstat (limited to 'drivers/media/video/mxc/output/mxc_v4l2_output.h')
-rw-r--r--drivers/media/video/mxc/output/mxc_v4l2_output.h159
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/media/video/mxc/output/mxc_v4l2_output.h b/drivers/media/video/mxc/output/mxc_v4l2_output.h
new file mode 100644
index 00000000000..39e4f69b23e
--- /dev/null
+++ b/drivers/media/video/mxc/output/mxc_v4l2_output.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup MXC_V4L2_OUTPUT MXC V4L2 Video Output Driver
+ */
+/*!
+ * @file mxc_v4l2_output.h
+ *
+ * @brief MXC V4L2 Video Output Driver Header file
+ *
+ * Video4Linux2 Output Device using MXC IPU Post-processing functionality.
+ *
+ * @ingroup MXC_V4L2_OUTPUT
+ */
+#ifndef __MXC_V4L2_OUTPUT_H__
+#define __MXC_V4L2_OUTPUT_H__
+
+#include <media/v4l2-dev.h>
+
+#ifdef __KERNEL__
+
+#include <linux/ipu.h>
+#include <mach/ipu-v3.h>
+#include <linux/mxc_v4l2.h>
+#include <linux/videodev2.h>
+
+#define MIN_FRAME_NUM 2
+#define MAX_FRAME_NUM 30
+
+#define MXC_V4L2_OUT_NUM_OUTPUTS 6
+#define MXC_V4L2_OUT_2_SDC 0
+
+
+typedef struct {
+ int list[MAX_FRAME_NUM + 1];
+ int head;
+ int tail;
+} v4l_queue;
+
+/*!
+ * States for the video stream
+ */
+typedef enum {
+ STATE_STREAM_OFF,
+ STATE_STREAM_ON,
+ STATE_STREAM_PAUSED,
+ STATE_STREAM_STOPPING,
+} v4lout_state;
+
+/*!
+ * common v4l2 driver structure.
+ */
+typedef struct _vout_data {
+ struct video_device *video_dev;
+ /*!
+ * semaphore guard against SMP multithreading
+ */
+ struct semaphore busy_lock;
+
+ /*!
+ * number of process that have device open
+ */
+ int open_count;
+
+ /*!
+ * params lock for this camera
+ */
+ struct semaphore param_lock;
+
+ struct timer_list output_timer;
+ struct workqueue_struct *v4l_wq;
+ struct work_struct icbypass_work;
+ int disp_buf_num;
+ int fb_blank;
+ unsigned long start_jiffies;
+ u32 frame_count;
+
+ v4l_queue ready_q;
+ v4l_queue done_q;
+
+ s8 next_rdy_ipu_buf;
+ s8 next_done_ipu_buf;
+ s8 next_disp_ipu_buf;
+ s8 ipu_buf[2];
+ s8 ipu_buf_p[2];
+ s8 ipu_buf_n[2];
+ volatile v4lout_state state;
+
+ int cur_disp_output;
+ int output_fb_num[MXC_V4L2_OUT_NUM_OUTPUTS];
+ int output_enabled[MXC_V4L2_OUT_NUM_OUTPUTS];
+ struct v4l2_framebuffer v4l2_fb;
+ int ic_bypass;
+ u32 work_irq;
+ ipu_channel_t display_ch;
+ ipu_channel_t post_proc_ch;
+ ipu_channel_t display_input_ch;
+
+ /*!
+ * FRAME_NUM-buffering, so we need a array
+ */
+ int buffer_cnt;
+ dma_addr_t queue_buf_paddr[MAX_FRAME_NUM];
+ void *queue_buf_vaddr[MAX_FRAME_NUM];
+ u32 queue_buf_size;
+ struct v4l2_buffer v4l2_bufs[MAX_FRAME_NUM];
+ u32 display_buf_size;
+ dma_addr_t display_bufs[2];
+ void *display_bufs_vaddr[2];
+ dma_addr_t rot_pp_bufs[2];
+ void *rot_pp_bufs_vaddr[2];
+
+ /*!
+ * Poll wait queue
+ */
+ wait_queue_head_t v4l_bufq;
+
+ /*!
+ * v4l2 format
+ */
+ struct v4l2_format v2f;
+ struct v4l2_mxc_offset offset;
+ ipu_rotate_mode_t rotate;
+
+ /* crop */
+ struct v4l2_rect crop_bounds[MXC_V4L2_OUT_NUM_OUTPUTS];
+ struct v4l2_rect crop_current;
+ u32 bytesperline;
+ enum v4l2_field field_fmt;
+ ipu_motion_sel motion_sel;
+
+ /* PP split fot two stripes*/
+ int pp_split; /* 0,1 */
+ struct stripe_param pp_left_stripe;
+ struct stripe_param pp_right_stripe; /* struct for split parameters */
+ struct stripe_param pp_up_stripe;
+ struct stripe_param pp_down_stripe;
+ /* IC ouput buffer number. Counting from 0 to 7 */
+ int pp_split_buf_num; /* 0..7 */
+ u16 bpp ; /* bit per pixel */
+ u16 xres; /* width of physical frame (BGs) */
+ u16 yres; /* heigth of physical frame (BGs)*/
+
+ void *ipu;
+} vout_data;
+
+#endif
+#endif /* __MXC_V4L2_OUTPUT_H__ */