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Diffstat (limited to 'include/linux/ipu-v3-pre.h')
| -rw-r--r-- | include/linux/ipu-v3-pre.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/include/linux/ipu-v3-pre.h b/include/linux/ipu-v3-pre.h new file mode 100644 index 000000000000..f5a26e5eadbf --- /dev/null +++ b/include/linux/ipu-v3-pre.h @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. + * + * 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 + */ +#ifndef __LINUX_IPU_V3_PRE_H_ +#define __LINUX_IPU_V3_PRE_H_ + +#define IPU_PRE_MAX_WIDTH 1920 +#define IPU_PRE_MAX_BPP 4 +#define IPU_PRE_SMALL_LINE 9 /* to workaround errata ERR009624*/ + +struct ipu_rect { + int left; + int top; + int width; + int height; +}; + +struct ipu_pre_context { + bool repeat; + bool vflip; + bool handshake_en; + bool hsk_abort_en; + unsigned int hsk_line_num; + bool sdw_update; + unsigned int block_size; + unsigned int interlaced; + unsigned int prefetch_mode; + + unsigned long cur_buf; + unsigned long next_buf; + + unsigned int tile_fmt; + + unsigned int read_burst; + unsigned int prefetch_input_bpp; + unsigned int prefetch_input_pixel_fmt; + unsigned int prefetch_shift_offset; + unsigned int prefetch_shift_width; + bool shift_bypass; + bool field_inverse; + bool tpr_coor_offset_en; + /* the output of prefetch is + * also the input of store + */ + struct ipu_rect prefetch_output_size; + unsigned int prefetch_input_active_width; + unsigned int prefetch_input_width; + unsigned int prefetch_input_height; + unsigned int store_pitch; + int interlace_offset; + + bool store_en; + unsigned int write_burst; + unsigned int store_output_bpp; + + unsigned int sec_buf_off; + unsigned int trd_buf_off; + + /* return for IPU fb caller */ + unsigned long store_addr; +}; + +/* + * In order to workaround the PRE SoC bug recorded by errata ERR009624, + * the software cannot write the PRE_CTRL register when the PRE writes + * the PRE_CTRL register automatically to set the ENABLE bit(bit0) to 1 + * in the PRE repeat mode. + * The software mechanism to set the PRE_CTRL register is different for + * PRE Y resolution higher than 9 lines and lower or equal to 9 lines. + * Use this helper to check the Y resolution. + */ +static inline bool ipu_pre_yres_is_small(unsigned int yres) +{ + return yres <= IPU_PRE_SMALL_LINE; +} + +#ifdef CONFIG_MXC_IPU_V3_PRE +int ipu_pre_alloc(int ipu_id, ipu_channel_t ipu_ch); +void ipu_pre_free(unsigned int *id); +unsigned long ipu_pre_alloc_double_buffer(unsigned int id, unsigned int size); +void ipu_pre_free_double_buffer(unsigned int id); +int ipu_pre_config(int id, struct ipu_pre_context *config); +int ipu_pre_set_ctrl(unsigned int id, struct ipu_pre_context *config); +int ipu_pre_enable(int id); +void ipu_pre_disable(int id); +int ipu_pre_set_fb_buffer(int id, bool resolve, + unsigned long fb_paddr, + unsigned int y_res, + unsigned int x_crop, + unsigned int y_crop, + unsigned int sec_buf_off, + unsigned int trd_buf_off); +int ipu_pre_sdw_update(int id); +#else +int ipu_pre_alloc(int ipu_id, ipu_channel_t channel) +{ + return -ENODEV; +} + +void ipu_pre_free(unsigned int *id) +{ +} + +unsigned long ipu_pre_alloc_double_buffer(unsigned int id, unsigned int size) +{ + return -ENODEV; +} + +void ipu_pre_free_double_buffer(unsigned int id) +{ +} + +int ipu_pre_config(int id, struct ipu_pre_context *config) +{ + return -ENODEV; +} + +int ipu_pre_set_ctrl(unsigned int id, struct ipu_pre_context *config) +{ + return -ENODEV; +} + +int ipu_pre_enable(int id) +{ + return -ENODEV; +} + +void ipu_pre_disable(int id) +{ + return; +} + +int ipu_pre_set_fb_buffer(int id, bool resolve, + unsigned long fb_paddr, + unsigned int y_res, + unsigned int x_crop, + unsigned int y_crop, + unsigned int sec_buf_off, + unsigned int trd_buf_off) +{ + return -ENODEV; +} +int ipu_pre_sdw_update(int id) +{ + return -ENODEV; +} +#endif +#endif /* __LINUX_IPU_V3_PRE_H_ */ |