// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2012 Mentor Graphics Inc. * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved. */ #include <linux/types.h> #include <linux/bitrev.h> #include <linux/io.h> #include <linux/sizes.h> #include <drm/drm_fourcc.h> #include "ipu-prv.h" struct ipu_cpmem_word { … }; struct ipu_ch_param { … }; struct ipu_cpmem { … }; #define IPU_CPMEM_WORD(word, ofs, size) … #define IPU_FIELD_UBO … #define IPU_FIELD_VBO … #define IPU_FIELD_IOX … #define IPU_FIELD_RDRW … #define IPU_FIELD_SO … #define IPU_FIELD_SLY … #define IPU_FIELD_SLUV … #define IPU_FIELD_XV … #define IPU_FIELD_YV … #define IPU_FIELD_XB … #define IPU_FIELD_YB … #define IPU_FIELD_NSB_B … #define IPU_FIELD_CF … #define IPU_FIELD_SX … #define IPU_FIELD_SY … #define IPU_FIELD_NS … #define IPU_FIELD_SDX … #define IPU_FIELD_SM … #define IPU_FIELD_SCC … #define IPU_FIELD_SCE … #define IPU_FIELD_SDY … #define IPU_FIELD_SDRX … #define IPU_FIELD_SDRY … #define IPU_FIELD_BPP … #define IPU_FIELD_DEC_SEL … #define IPU_FIELD_DIM … #define IPU_FIELD_BNDM … #define IPU_FIELD_BM … #define IPU_FIELD_ROT … #define IPU_FIELD_ROT_HF_VF … #define IPU_FIELD_HF … #define IPU_FIELD_VF … #define IPU_FIELD_THE … #define IPU_FIELD_CAP … #define IPU_FIELD_CAE … #define IPU_FIELD_FW … #define IPU_FIELD_FH … #define IPU_FIELD_EBA0 … #define IPU_FIELD_EBA1 … #define IPU_FIELD_ILO … #define IPU_FIELD_NPB … #define IPU_FIELD_PFS … #define IPU_FIELD_ALU … #define IPU_FIELD_ALBM … #define IPU_FIELD_ID … #define IPU_FIELD_TH … #define IPU_FIELD_SL … #define IPU_FIELD_WID0 … #define IPU_FIELD_WID1 … #define IPU_FIELD_WID2 … #define IPU_FIELD_WID3 … #define IPU_FIELD_OFS0 … #define IPU_FIELD_OFS1 … #define IPU_FIELD_OFS2 … #define IPU_FIELD_OFS3 … #define IPU_FIELD_SXYS … #define IPU_FIELD_CRE … #define IPU_FIELD_DEC_SEL2 … static inline struct ipu_ch_param __iomem * ipu_get_cpmem(struct ipuv3_channel *ch) { … } static void ipu_ch_param_write_field(struct ipuv3_channel *ch, u32 wbs, u32 v) { … } static u32 ipu_ch_param_read_field(struct ipuv3_channel *ch, u32 wbs) { … } /* * The V4L2 spec defines packed RGB formats in memory byte order, which from * point of view of the IPU corresponds to little-endian words with the first * component in the least significant bits. * The DRM pixel formats and IPU internal representation are ordered the other * way around, with the first named component ordered at the most significant * bits. Further, V4L2 formats are not well defined: * https://linuxtv.org/downloads/v4l-dvb-apis/packed-rgb.html * We choose the interpretation which matches GStreamer behavior. */ static int v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat) { … } void ipu_cpmem_zero(struct ipuv3_channel *ch) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_skip_odd_chroma_rows(struct ipuv3_channel *ch) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch) { struct ipu_soc *ipu = ch->ipu; u32 val; if (ipu->ipu_type == IPUV3EX) ipu_ch_param_write_field(ch, IPU_FIELD_ID, 1); val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(ch->num)); val |= 1 << (ch->num % 32); ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(ch->num)); }; EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_uv_offset(struct ipuv3_channel *ch, u32 u_off, u32 v_off) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride, u32 pixelformat) { u32 ilo, sly, sluv; if (stride < 0) { stride = -stride; ilo = 0x100000 - (stride / 8); } else { ilo = stride / 8; } sly = (stride * 2) - 1; switch (pixelformat) { case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: sluv = stride / 2 - 1; break; case V4L2_PIX_FMT_NV12: sluv = stride - 1; break; case V4L2_PIX_FMT_YUV422P: sluv = stride - 1; break; case V4L2_PIX_FMT_NV16: sluv = stride * 2 - 1; break; default: sluv = 0; break; } ipu_ch_param_write_field(ch, IPU_FIELD_SO, 1); ipu_ch_param_write_field(ch, IPU_FIELD_ILO, ilo); ipu_ch_param_write_field(ch, IPU_FIELD_SLY, sly); if (sluv) ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, sluv); }; EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id) { … } EXPORT_SYMBOL_GPL(…); int ipu_cpmem_get_burstsize(struct ipuv3_channel *ch) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize) { ipu_ch_param_write_field(ch, IPU_FIELD_NPB, burstsize - 1); }; EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_rotation(struct ipuv3_channel *ch, enum ipu_rotate_mode rot) { … } EXPORT_SYMBOL_GPL(…); int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch, const struct ipu_rgb *rgb) { … } EXPORT_SYMBOL_GPL(…); int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch, unsigned int uv_stride, unsigned int u_offset, unsigned int v_offset) { … } EXPORT_SYMBOL_GPL(…); static const struct ipu_rgb def_xrgb_32 = …; static const struct ipu_rgb def_xbgr_32 = …; static const struct ipu_rgb def_rgbx_32 = …; static const struct ipu_rgb def_bgrx_32 = …; static const struct ipu_rgb def_rgb_24 = …; static const struct ipu_rgb def_bgr_24 = …; static const struct ipu_rgb def_rgb_16 = …; static const struct ipu_rgb def_bgr_16 = …; static const struct ipu_rgb def_argb_16 = …; static const struct ipu_rgb def_argb_16_4444 = …; static const struct ipu_rgb def_abgr_16 = …; static const struct ipu_rgb def_rgba_16 = …; static const struct ipu_rgb def_bgra_16 = …; #define Y_OFFSET(pix, x, y) … #define U_OFFSET(pix, x, y) … #define V_OFFSET(pix, x, y) … #define U2_OFFSET(pix, x, y) … #define V2_OFFSET(pix, x, y) … #define UV_OFFSET(pix, x, y) … #define UV2_OFFSET(pix, x, y) … #define NUM_ALPHA_CHANNELS … /* See Table 37-12. Alpha channels mapping. */ static int ipu_channel_albm(int ch_num) { … } static void ipu_cpmem_set_separate_alpha(struct ipuv3_channel *ch) { … } int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc) { … } EXPORT_SYMBOL_GPL(…); int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image) { … } EXPORT_SYMBOL_GPL(…); void ipu_cpmem_dump(struct ipuv3_channel *ch) { … } EXPORT_SYMBOL_GPL(…); int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base) { … } void ipu_cpmem_exit(struct ipu_soc *ipu) { … }
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