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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2008 * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de> * * Copyright (C) 2005-2007 Freescale Semiconductor, Inc. */ #ifndef __LINUX_DMA_IPU_DMA_H #define __LINUX_DMA_IPU_DMA_H #include <linux/types.h> #include <linux/dmaengine.h> /* IPU DMA Controller channel definitions. */ enum ipu_channel { IDMAC_IC_0 = 0, /* IC (encoding task) to memory */ IDMAC_IC_1 = 1, /* IC (viewfinder task) to memory */ IDMAC_ADC_0 = 1, IDMAC_IC_2 = 2, IDMAC_ADC_1 = 2, IDMAC_IC_3 = 3, IDMAC_IC_4 = 4, IDMAC_IC_5 = 5, IDMAC_IC_6 = 6, IDMAC_IC_7 = 7, /* IC (sensor data) to memory */ IDMAC_IC_8 = 8, IDMAC_IC_9 = 9, IDMAC_IC_10 = 10, IDMAC_IC_11 = 11, IDMAC_IC_12 = 12, IDMAC_IC_13 = 13, IDMAC_SDC_0 = 14, /* Background synchronous display data */ IDMAC_SDC_1 = 15, /* Foreground data (overlay) */ IDMAC_SDC_2 = 16, IDMAC_SDC_3 = 17, IDMAC_ADC_2 = 18, IDMAC_ADC_3 = 19, IDMAC_ADC_4 = 20, IDMAC_ADC_5 = 21, IDMAC_ADC_6 = 22, IDMAC_ADC_7 = 23, IDMAC_PF_0 = 24, IDMAC_PF_1 = 25, IDMAC_PF_2 = 26, IDMAC_PF_3 = 27, IDMAC_PF_4 = 28, IDMAC_PF_5 = 29, IDMAC_PF_6 = 30, IDMAC_PF_7 = 31, }; /* Order significant! */ enum ipu_channel_status { IPU_CHANNEL_FREE, IPU_CHANNEL_INITIALIZED, IPU_CHANNEL_READY, IPU_CHANNEL_ENABLED, }; #define IPU_CHANNELS_NUM 32 enum pixel_fmt { /* 1 byte */ IPU_PIX_FMT_GENERIC, IPU_PIX_FMT_RGB332, IPU_PIX_FMT_YUV420P, IPU_PIX_FMT_YUV422P, IPU_PIX_FMT_YUV420P2, IPU_PIX_FMT_YVU422P, /* 2 bytes */ IPU_PIX_FMT_RGB565, IPU_PIX_FMT_RGB666, IPU_PIX_FMT_BGR666, IPU_PIX_FMT_YUYV, IPU_PIX_FMT_UYVY, /* 3 bytes */ IPU_PIX_FMT_RGB24, IPU_PIX_FMT_BGR24, /* 4 bytes */ IPU_PIX_FMT_GENERIC_32, IPU_PIX_FMT_RGB32, IPU_PIX_FMT_BGR32, IPU_PIX_FMT_ABGR32, IPU_PIX_FMT_BGRA32, IPU_PIX_FMT_RGBA32, }; enum ipu_color_space { IPU_COLORSPACE_RGB, IPU_COLORSPACE_YCBCR, IPU_COLORSPACE_YUV }; /* * Enumeration of IPU rotation modes */ enum ipu_rotate_mode { /* Note the enum values correspond to BAM value */ IPU_ROTATE_NONE = 0, IPU_ROTATE_VERT_FLIP = 1, IPU_ROTATE_HORIZ_FLIP = 2, IPU_ROTATE_180 = 3, IPU_ROTATE_90_RIGHT = 4, IPU_ROTATE_90_RIGHT_VFLIP = 5, IPU_ROTATE_90_RIGHT_HFLIP = 6, IPU_ROTATE_90_LEFT = 7, }; /* * Enumeration of DI ports for ADC. */ enum display_port { DISP0, DISP1, DISP2, DISP3 }; struct idmac_video_param { unsigned short in_width; unsigned short in_height; uint32_t in_pixel_fmt; unsigned short out_width; unsigned short out_height; uint32_t out_pixel_fmt; unsigned short out_stride; bool graphics_combine_en; bool global_alpha_en; bool key_color_en; enum display_port disp; unsigned short out_left; unsigned short out_top; }; /* * Union of initialization parameters for a logical channel. So far only video * parameters are used. */ union ipu_channel_param { struct idmac_video_param video; }; struct idmac_tx_desc { struct dma_async_tx_descriptor txd; struct scatterlist *sg; /* scatterlist for this */ unsigned int sg_len; /* tx-descriptor. */ struct list_head list; }; struct idmac_channel { struct dma_chan dma_chan; dma_cookie_t completed; /* last completed cookie */ union ipu_channel_param params; enum ipu_channel link; /* input channel, linked to the output */ enum ipu_channel_status status; void *client; /* Only one client per channel */ unsigned int n_tx_desc; struct idmac_tx_desc *desc; /* allocated tx-descriptors */ struct scatterlist *sg[2]; /* scatterlist elements in buffer-0 and -1 */ struct list_head free_list; /* free tx-descriptors */ struct list_head queue; /* queued tx-descriptors */ spinlock_t lock; /* protects sg[0,1], queue */ struct mutex chan_mutex; /* protects status, cookie, free_list */ bool sec_chan_en; int active_buffer; unsigned int eof_irq; char eof_name[16]; /* EOF IRQ name for request_irq() */ }; #define to_tx_desc(tx) container_of(tx, struct idmac_tx_desc, txd) #define to_idmac_chan(c) container_of(c, struct idmac_channel, dma_chan) #endif /* __LINUX_DMA_IPU_DMA_H */
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