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Diffstat (limited to 'include/linux/pxp_dma.h')
| -rw-r--r-- | include/linux/pxp_dma.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/include/linux/pxp_dma.h b/include/linux/pxp_dma.h new file mode 100644 index 000000000000..91553970f22a --- /dev/null +++ b/include/linux/pxp_dma.h @@ -0,0 +1,223 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef _PXP_DMA +#define _PXP_DMA + +#include <linux/types.h> + +#ifndef __KERNEL__ +typedef unsigned long dma_addr_t; +typedef unsigned char bool; +#endif + +/* PXP Pixel format definitions */ +/* Four-character-code (FOURCC) */ +#define fourcc(a, b, c, d)\ + (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24)) + +/*! + * @name PXP Pixel Formats + * + * Pixel formats are defined with ASCII FOURCC code. The pixel format codes are + * the same used by V4L2 API. + */ + +/*! @} */ +/*! @name RGB Formats */ +/*! @{ */ +#define PXP_PIX_FMT_RGB332 fourcc('R', 'G', 'B', '1') /*!< 8 RGB-3-3-2 */ +#define PXP_PIX_FMT_RGB555 fourcc('R', 'G', 'B', 'O') /*!< 16 RGB-5-5-5 */ +#define PXP_PIX_FMT_RGB565 fourcc('R', 'G', 'B', 'P') /*!< 1 6 RGB-5-6-5 */ +#define PXP_PIX_FMT_RGB666 fourcc('R', 'G', 'B', '6') /*!< 18 RGB-6-6-6 */ +#define PXP_PIX_FMT_BGR666 fourcc('B', 'G', 'R', '6') /*!< 18 BGR-6-6-6 */ +#define PXP_PIX_FMT_BGR24 fourcc('B', 'G', 'R', '3') /*!< 24 BGR-8-8-8 */ +#define PXP_PIX_FMT_RGB24 fourcc('R', 'G', 'B', '3') /*!< 24 RGB-8-8-8 */ +#define PXP_PIX_FMT_BGR32 fourcc('B', 'G', 'R', '4') /*!< 32 BGR-8-8-8-8 */ +#define PXP_PIX_FMT_BGRA32 fourcc('B', 'G', 'R', 'A') /*!< 32 BGR-8-8-8-8 */ +#define PXP_PIX_FMT_RGB32 fourcc('R', 'G', 'B', '4') /*!< 32 RGB-8-8-8-8 */ +#define PXP_PIX_FMT_RGBA32 fourcc('R', 'G', 'B', 'A') /*!< 32 RGB-8-8-8-8 */ +#define PXP_PIX_FMT_ABGR32 fourcc('A', 'B', 'G', 'R') /*!< 32 ABGR-8-8-8-8 */ +/*! @} */ +/*! @name YUV Interleaved Formats */ +/*! @{ */ +#define PXP_PIX_FMT_YUYV fourcc('Y', 'U', 'Y', 'V') /*!< 16 YUV 4:2:2 */ +#define PXP_PIX_FMT_UYVY fourcc('U', 'Y', 'V', 'Y') /*!< 16 YUV 4:2:2 */ +#define PXP_PIX_FMT_Y41P fourcc('Y', '4', '1', 'P') /*!< 12 YUV 4:1:1 */ +#define PXP_PIX_FMT_YUV444 fourcc('Y', '4', '4', '4') /*!< 24 YUV 4:4:4 */ +/* two planes -- one Y, one Cb + Cr interleaved */ +#define PXP_PIX_FMT_NV12 fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */ +/*! @} */ +/*! @name YUV Planar Formats */ +/*! @{ */ +#define PXP_PIX_FMT_GREY fourcc('G', 'R', 'E', 'Y') /*!< 8 Greyscale */ +#define PXP_PIX_FMT_YVU410P fourcc('Y', 'V', 'U', '9') /*!< 9 YVU 4:1:0 */ +#define PXP_PIX_FMT_YUV410P fourcc('Y', 'U', 'V', '9') /*!< 9 YUV 4:1:0 */ +#define PXP_PIX_FMT_YVU420P fourcc('Y', 'V', '1', '2') /*!< 12 YVU 4:2:0 */ +#define PXP_PIX_FMT_YUV420P fourcc('I', '4', '2', '0') /*!< 12 YUV 4:2:0 */ +#define PXP_PIX_FMT_YUV420P2 fourcc('Y', 'U', '1', '2') /*!< 12 YUV 4:2:0 */ +#define PXP_PIX_FMT_YVU422P fourcc('Y', 'V', '1', '6') /*!< 16 YVU 4:2:2 */ +#define PXP_PIX_FMT_YUV422P fourcc('4', '2', '2', 'P') /*!< 16 YUV 4:2:2 */ +/*! @} */ + +#define PXP_LUT_NONE 0x0 +#define PXP_LUT_INVERT 0x1 +#define PXP_LUT_BLACK_WHITE 0x2 + +#define NR_PXP_VIRT_CHANNEL 16 + +#define PXP_IOC_MAGIC 'P' + +#define PXP_IOC_GET_CHAN _IOR(PXP_IOC_MAGIC, 0, struct pxp_mem_desc) +#define PXP_IOC_PUT_CHAN _IOW(PXP_IOC_MAGIC, 1, struct pxp_mem_desc) +#define PXP_IOC_CONFIG_CHAN _IOW(PXP_IOC_MAGIC, 2, struct pxp_mem_desc) +#define PXP_IOC_START_CHAN _IOW(PXP_IOC_MAGIC, 3, struct pxp_mem_desc) +#define PXP_IOC_GET_PHYMEM _IOWR(PXP_IOC_MAGIC, 4, struct pxp_mem_desc) +#define PXP_IOC_PUT_PHYMEM _IOW(PXP_IOC_MAGIC, 5, struct pxp_mem_desc) +#define PXP_IOC_WAIT4CMPLT _IOWR(PXP_IOC_MAGIC, 6, struct pxp_mem_desc) + +/* Order significant! */ +enum pxp_channel_status { + PXP_CHANNEL_FREE, + PXP_CHANNEL_INITIALIZED, + PXP_CHANNEL_READY, +}; + +struct rect { + int top; /* Upper left coordinate of rectangle */ + int left; + int width; + int height; +}; + +struct pxp_layer_param { + unsigned short width; + unsigned short height; + unsigned int pixel_fmt; + + /* layers combining parameters + * (these are ignored for S0 and output + * layers, and only apply for OL layer) + */ + bool combine_enable; + __u32 color_key_enable; + __u32 color_key; + bool global_alpha_enable; + __u8 global_alpha; + bool local_alpha_enable; + + dma_addr_t paddr; +}; + +struct pxp_proc_data { + /* S0 Transformation Info */ + int scaling; + int hflip; + int vflip; + int rotate; + int yuv; + + /* Source rectangle (srect) defines the sub-rectangle + * within S0 to undergo processing. + */ + struct rect srect; + /* Dest rect (drect) defines how to position the processed + * source rectangle (after resizing) within the output frame, + * whose dimensions are defined in pxp->pxp_conf_state.out_param + */ + struct rect drect; + + /* Current S0 configuration */ + __u32 bgcolor; + + /* Output overlay support */ + int overlay_state; + + /* LUT transformation on Y data */ + int lut_transform; +}; + +struct pxp_config_data { + struct pxp_layer_param s0_param; + struct pxp_layer_param ol_param[8]; + struct pxp_layer_param out_param; + struct pxp_proc_data proc_data; + int layer_nr; + + /* Users don't touch */ + int chan_id; +}; + +struct pxp_mem_desc { + __u32 size; + dma_addr_t phys_addr; + __u32 cpu_addr; /* cpu address to free the dma mem */ + __u32 virt_uaddr; /* virtual user space address */ +}; + +#ifdef __KERNEL__ + +struct pxp_tx_desc { + struct dma_async_tx_descriptor txd; + struct list_head tx_list; + struct list_head list; + int len; + union { + struct pxp_layer_param s0_param; + struct pxp_layer_param out_param; + struct pxp_layer_param ol_param; + } layer_param; + struct pxp_proc_data proc_data; + + u32 hist_status; /* Histogram output status */ + + struct pxp_tx_desc *next; +}; + +struct pxp_channel { + struct dma_chan dma_chan; + dma_cookie_t completed; /* last completed cookie */ + enum pxp_channel_status status; + void *client; /* Only one client per channel */ + unsigned int n_tx_desc; + struct pxp_tx_desc *desc; /* allocated tx-descriptors */ + struct list_head active_list; /* active tx-descriptors */ + struct list_head free_list; /* free tx-descriptors */ + struct list_head queue; /* queued tx-descriptors */ + struct list_head list; /* track queued channel number */ + spinlock_t lock; /* protects sg[0,1], queue */ + struct mutex chan_mutex; /* protects status, cookie, free_list */ + int active_buffer; + unsigned int eof_irq; + char eof_name[16]; /* EOF IRQ name for request_irq() */ +}; + +struct pxp_irq_info { + wait_queue_head_t waitq; + int irq_pending; + int hist_status; +}; + +#define to_tx_desc(tx) container_of(tx, struct pxp_tx_desc, txd) +#define to_pxp_channel(d) container_of(d, struct pxp_channel, dma_chan) + +void pxp_txd_ack(struct dma_async_tx_descriptor *txd, + struct pxp_channel *pxp_chan); +#endif + +#endif |