diff options
Diffstat (limited to 'drivers/media/platform/imx8/mxc-jpeg.h')
| -rw-r--r-- | drivers/media/platform/imx8/mxc-jpeg.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/media/platform/imx8/mxc-jpeg.h b/drivers/media/platform/imx8/mxc-jpeg.h new file mode 100644 index 000000000000..d2eb0521321d --- /dev/null +++ b/drivers/media/platform/imx8/mxc-jpeg.h @@ -0,0 +1,141 @@ +/* + * Copyright 2018 NXP + */ +/* + * 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 + */ + +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-fh.h> + +#ifndef _MXC_JPEG_CORE_H +#define _MXC_JPEG_CORE_H + +#define MXC_JPEG_M2M_NAME "mxc-jpeg" +#define MXC_JPEG_NAME "mxc-jpeg" +#define MXC_IN_FORMAT 0 +#define MXC_OUT_FORMAT 1 +#define MXC_JPEG_INIT 0 +#define MXC_JPEG_RUNNING 1 +#define MXC_JPEG_FMT_TYPE_ENC 0 +#define MXC_JPEG_FMT_TYPE_RAW 1 +#define MXC_JPEG_NUM_FORMATS 4 +#define MXC_JPEG_MIN_HEIGHT 0x8 +#define MXC_JPEG_MIN_WIDTH 0x8 +#define MXC_JPEG_MAX_HEIGHT 0x2000 +#define MXC_JPEG_MAX_WIDTH 0x2000 +#define MXC_JPEG_DEFAULT_SIZEIMAGE 10000 +#define MXC_JPEG_ENC_CONF 1 +#define MXC_JPEG_ENC_DONE 0 +#define SOF0 0xC0 +#define SOF2 0xC2 +#define MXC_JPEG_ENC_CONF_DONE 1 + + +/** + * struct jpeg_fmt - driver's internal color format data + * @name: format description + * @fourcc: fourcc code, 0 if not applicable + * @depth: number of bits per pixel + * @colplanes: number of color planes (1 for packed formats) + * @h_align: horizontal alignment order (align to 2^h_align) + * @v_align: vertical alignment order (align to 2^v_align) + * @flags: flags describing format applicability + */ +struct mxc_jpeg_fmt { + char *name; + u32 fourcc; + int depth; + int colplanes; + int memplanes; + int h_align; + int v_align; + int subsampling; + u32 flags; +}; +struct mxc_jpeg_desc { + u32 next_descpt_ptr; + u32 buf_base0; + u32 buf_base1; + u32 line_pitch; + u32 stm_bufbase; + u32 stm_bufsize; + u32 imgsize; + u32 stm_ctrl; +} __packed; + +struct mxc_jpeg_q_data { + struct mxc_jpeg_fmt *fmt; + u32 sizeimage[1]; + u32 bytesperline[2]; + int w; + int h; + u32 stride; +}; +struct mxc_jpeg_ctx { + struct mxc_jpeg_dev *mxc_jpeg; + struct mxc_jpeg_q_data out_q; + struct mxc_jpeg_q_data cap_q; + struct v4l2_rect crop_rect; + unsigned long state; + struct v4l2_fh fh; + unsigned int mode; + unsigned int enc_state; + unsigned int aborting; +}; + +struct mxc_jpeg_slot_data { + int used; + struct mxc_jpeg_desc *desc; // enc/dec descriptor + struct mxc_jpeg_desc *cfg_desc; // configuration descriptor + void *cfg_stream_vaddr; // configuration bitstream virtual address + int flags; + dma_addr_t desc_handle; + dma_addr_t cfg_desc_handle; // configuration descriptor dma address + dma_addr_t cfg_stream_handle; // configuration bitstream dma address +}; + +struct mxc_jpeg_dev { + spinlock_t hw_lock; + unsigned int mode; + struct mutex lock; + bool enc; + bool dec; + struct clk *clk_ipg; + struct clk *clk_per; + struct platform_device *pdev; + struct device *dev; + void __iomem *base_reg; + void __iomem *enc_reg; + struct v4l2_device v4l2_dev; + struct v4l2_m2m_dev *m2m_dev; + struct video_device *dec_vdev; + unsigned int irq; + int id; + + struct mxc_jpeg_slot_data slot_data[MXC_MAX_SLOTS]; +}; + +/* JPEG Start Of Frame marker fields*/ +struct mxc_jpeg_sof_comp { + u8 id; /*component id*/ + u8 v :4; /* vertical sampling*/ + u8 h :4; /* horizontal sampling*/ + u8 quantization_table_no; +} __packed; + +struct mxc_jpeg_sof { + u16 length; + u8 precision; + u16 height, width; + u8 components_no; + struct mxc_jpeg_sof_comp comp[3]; +} __packed; + +#endif |