diff options
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-cpmem.c')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-cpmem.c | 597 |
1 files changed, 597 insertions, 0 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-cpmem.c b/drivers/gpu/ipu-v3/ipu-cpmem.c new file mode 100644 index 000000000000..7adfa78a48bc --- /dev/null +++ b/drivers/gpu/ipu-v3/ipu-cpmem.c @@ -0,0 +1,597 @@ +/* + * Copyright (C) 2012 Mentor Graphics Inc. + * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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 <linux/types.h> +#include <linux/bitrev.h> +#include <linux/io.h> +#include <drm/drm_fourcc.h> +#include "ipu-prv.h" + +struct ipu_cpmem_word { + u32 data[5]; + u32 res[3]; +}; + +struct ipu_ch_param { + struct ipu_cpmem_word word[2]; +}; + +struct ipu_cpmem { + struct ipu_ch_param __iomem *base; + u32 module; + spinlock_t lock; + int use_count; + struct ipu_soc *ipu; +}; + +#define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size)) + +#define IPU_FIELD_UBO IPU_CPMEM_WORD(0, 46, 22) +#define IPU_FIELD_VBO IPU_CPMEM_WORD(0, 68, 22) +#define IPU_FIELD_IOX IPU_CPMEM_WORD(0, 90, 4) +#define IPU_FIELD_RDRW IPU_CPMEM_WORD(0, 94, 1) +#define IPU_FIELD_SO IPU_CPMEM_WORD(0, 113, 1) +#define IPU_FIELD_SLY IPU_CPMEM_WORD(1, 102, 14) +#define IPU_FIELD_SLUV IPU_CPMEM_WORD(1, 128, 14) + +#define IPU_FIELD_XV IPU_CPMEM_WORD(0, 0, 10) +#define IPU_FIELD_YV IPU_CPMEM_WORD(0, 10, 9) +#define IPU_FIELD_XB IPU_CPMEM_WORD(0, 19, 13) +#define IPU_FIELD_YB IPU_CPMEM_WORD(0, 32, 12) +#define IPU_FIELD_NSB_B IPU_CPMEM_WORD(0, 44, 1) +#define IPU_FIELD_CF IPU_CPMEM_WORD(0, 45, 1) +#define IPU_FIELD_SX IPU_CPMEM_WORD(0, 46, 12) +#define IPU_FIELD_SY IPU_CPMEM_WORD(0, 58, 11) +#define IPU_FIELD_NS IPU_CPMEM_WORD(0, 69, 10) +#define IPU_FIELD_SDX IPU_CPMEM_WORD(0, 79, 7) +#define IPU_FIELD_SM IPU_CPMEM_WORD(0, 86, 10) +#define IPU_FIELD_SCC IPU_CPMEM_WORD(0, 96, 1) +#define IPU_FIELD_SCE IPU_CPMEM_WORD(0, 97, 1) +#define IPU_FIELD_SDY IPU_CPMEM_WORD(0, 98, 7) +#define IPU_FIELD_SDRX IPU_CPMEM_WORD(0, 105, 1) +#define IPU_FIELD_SDRY IPU_CPMEM_WORD(0, 106, 1) +#define IPU_FIELD_BPP IPU_CPMEM_WORD(0, 107, 3) +#define IPU_FIELD_DEC_SEL IPU_CPMEM_WORD(0, 110, 2) +#define IPU_FIELD_DIM IPU_CPMEM_WORD(0, 112, 1) +#define IPU_FIELD_BNDM IPU_CPMEM_WORD(0, 114, 3) +#define IPU_FIELD_BM IPU_CPMEM_WORD(0, 117, 2) +#define IPU_FIELD_ROT IPU_CPMEM_WORD(0, 119, 1) +#define IPU_FIELD_HF IPU_CPMEM_WORD(0, 120, 1) +#define IPU_FIELD_VF IPU_CPMEM_WORD(0, 121, 1) +#define IPU_FIELD_THE IPU_CPMEM_WORD(0, 122, 1) +#define IPU_FIELD_CAP IPU_CPMEM_WORD(0, 123, 1) +#define IPU_FIELD_CAE IPU_CPMEM_WORD(0, 124, 1) +#define IPU_FIELD_FW IPU_CPMEM_WORD(0, 125, 13) +#define IPU_FIELD_FH IPU_CPMEM_WORD(0, 138, 12) +#define IPU_FIELD_EBA0 IPU_CPMEM_WORD(1, 0, 29) +#define IPU_FIELD_EBA1 IPU_CPMEM_WORD(1, 29, 29) +#define IPU_FIELD_ILO IPU_CPMEM_WORD(1, 58, 20) +#define IPU_FIELD_NPB IPU_CPMEM_WORD(1, 78, 7) +#define IPU_FIELD_PFS IPU_CPMEM_WORD(1, 85, 4) +#define IPU_FIELD_ALU IPU_CPMEM_WORD(1, 89, 1) +#define IPU_FIELD_ALBM IPU_CPMEM_WORD(1, 90, 3) +#define IPU_FIELD_ID IPU_CPMEM_WORD(1, 93, 2) +#define IPU_FIELD_TH IPU_CPMEM_WORD(1, 95, 7) +#define IPU_FIELD_SL IPU_CPMEM_WORD(1, 102, 14) +#define IPU_FIELD_WID0 IPU_CPMEM_WORD(1, 116, 3) +#define IPU_FIELD_WID1 IPU_CPMEM_WORD(1, 119, 3) +#define IPU_FIELD_WID2 IPU_CPMEM_WORD(1, 122, 3) +#define IPU_FIELD_WID3 IPU_CPMEM_WORD(1, 125, 3) +#define IPU_FIELD_OFS0 IPU_CPMEM_WORD(1, 128, 5) +#define IPU_FIELD_OFS1 IPU_CPMEM_WORD(1, 133, 5) +#define IPU_FIELD_OFS2 IPU_CPMEM_WORD(1, 138, 5) +#define IPU_FIELD_OFS3 IPU_CPMEM_WORD(1, 143, 5) +#define IPU_FIELD_SXYS IPU_CPMEM_WORD(1, 148, 1) +#define IPU_FIELD_CRE IPU_CPMEM_WORD(1, 149, 1) +#define IPU_FIELD_DEC_SEL2 IPU_CPMEM_WORD(1, 150, 1) + +static inline struct ipu_ch_param __iomem * +ipu_get_cpmem(struct ipuv3_channel *ch) +{ + struct ipu_cpmem *cpmem = ch->ipu->cpmem_priv; + + return cpmem->base + ch->num; +} + +static void ipu_ch_param_write_field(struct ipuv3_channel *ch, u32 wbs, u32 v) +{ + struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch); + u32 bit = (wbs >> 8) % 160; + u32 size = wbs & 0xff; + u32 word = (wbs >> 8) / 160; + u32 i = bit / 32; + u32 ofs = bit % 32; + u32 mask = (1 << size) - 1; + u32 val; + + pr_debug("%s %d %d %d\n", __func__, word, bit , size); + + val = readl(&base->word[word].data[i]); + val &= ~(mask << ofs); + val |= v << ofs; + writel(val, &base->word[word].data[i]); + + if ((bit + size - 1) / 32 > i) { + val = readl(&base->word[word].data[i + 1]); + val &= ~(mask >> (ofs ? (32 - ofs) : 0)); + val |= v >> (ofs ? (32 - ofs) : 0); + writel(val, &base->word[word].data[i + 1]); + } +} + +static u32 ipu_ch_param_read_field(struct ipuv3_channel *ch, u32 wbs) +{ + struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch); + u32 bit = (wbs >> 8) % 160; + u32 size = wbs & 0xff; + u32 word = (wbs >> 8) / 160; + u32 i = bit / 32; + u32 ofs = bit % 32; + u32 mask = (1 << size) - 1; + u32 val = 0; + + pr_debug("%s %d %d %d\n", __func__, word, bit , size); + + val = (readl(&base->word[word].data[i]) >> ofs) & mask; + + if ((bit + size - 1) / 32 > i) { + u32 tmp; + + tmp = readl(&base->word[word].data[i + 1]); + tmp &= mask >> (ofs ? (32 - ofs) : 0); + val |= tmp << (ofs ? (32 - ofs) : 0); + } + + return val; +} + +/* + * 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: + * http://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) +{ + switch (pixelformat) { + case V4L2_PIX_FMT_RGB565: + /* + * Here we choose the 'corrected' interpretation of RGBP, a + * little-endian 16-bit word with the red component at the most + * significant bits: + * g[2:0]b[4:0] r[4:0]g[5:3] <=> [16:0] R:G:B + */ + return DRM_FORMAT_RGB565; + case V4L2_PIX_FMT_BGR24: + /* B G R <=> [24:0] R:G:B */ + return DRM_FORMAT_RGB888; + case V4L2_PIX_FMT_RGB24: + /* R G B <=> [24:0] B:G:R */ + return DRM_FORMAT_BGR888; + case V4L2_PIX_FMT_BGR32: + /* B G R A <=> [32:0] A:B:G:R */ + return DRM_FORMAT_XRGB8888; + case V4L2_PIX_FMT_RGB32: + /* R G B A <=> [32:0] A:B:G:R */ + return DRM_FORMAT_XBGR8888; + case V4L2_PIX_FMT_UYVY: + return DRM_FORMAT_UYVY; + case V4L2_PIX_FMT_YUYV: + return DRM_FORMAT_YUYV; + case V4L2_PIX_FMT_YUV420: + return DRM_FORMAT_YUV420; + case V4L2_PIX_FMT_YVU420: + return DRM_FORMAT_YVU420; + } + + return -EINVAL; +} + +void ipu_cpmem_zero(struct ipuv3_channel *ch) +{ + struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch); + void __iomem *base = p; + int i; + + for (i = 0; i < sizeof(*p) / sizeof(u32); i++) + writel(0, base + i * sizeof(u32)); +} +EXPORT_SYMBOL_GPL(ipu_cpmem_zero); + +void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres) +{ + ipu_ch_param_write_field(ch, IPU_FIELD_FW, xres - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_FH, yres - 1); +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_resolution); + +void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride) +{ + ipu_ch_param_write_field(ch, IPU_FIELD_SLY, stride - 1); +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_stride); + +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(ipu_cpmem_set_high_priority); + +void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf) +{ + if (bufnum) + ipu_ch_param_write_field(ch, IPU_FIELD_EBA1, buf >> 3); + else + ipu_ch_param_write_field(ch, IPU_FIELD_EBA0, buf >> 3); +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_buffer); + +void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride) +{ + ipu_ch_param_write_field(ch, IPU_FIELD_SO, 1); + ipu_ch_param_write_field(ch, IPU_FIELD_ILO, stride / 8); + ipu_ch_param_write_field(ch, IPU_FIELD_SLY, (stride * 2) - 1); +}; +EXPORT_SYMBOL_GPL(ipu_cpmem_interlaced_scan); + +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(ipu_cpmem_set_burstsize); + +int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch, + const struct ipu_rgb *rgb) +{ + int bpp = 0, npb = 0, ro, go, bo, to; + + ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset; + go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset; + bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset; + to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset; + + ipu_ch_param_write_field(ch, IPU_FIELD_WID0, rgb->red.length - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_OFS0, ro); + ipu_ch_param_write_field(ch, IPU_FIELD_WID1, rgb->green.length - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_OFS1, go); + ipu_ch_param_write_field(ch, IPU_FIELD_WID2, rgb->blue.length - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_OFS2, bo); + + if (rgb->transp.length) { + ipu_ch_param_write_field(ch, IPU_FIELD_WID3, + rgb->transp.length - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_OFS3, to); + } else { + ipu_ch_param_write_field(ch, IPU_FIELD_WID3, 7); + ipu_ch_param_write_field(ch, IPU_FIELD_OFS3, + rgb->bits_per_pixel); + } + + switch (rgb->bits_per_pixel) { + case 32: + bpp = 0; + npb = 15; + break; + case 24: + bpp = 1; + npb = 19; + break; + case 16: + bpp = 3; + npb = 31; + break; + case 8: + bpp = 5; + npb = 63; + break; + default: + return -EINVAL; + } + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp); + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb); + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 7); /* rgb mode */ + + return 0; +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_rgb); + +int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width) +{ + int bpp = 0, npb = 0; + + switch (width) { + case 32: + bpp = 0; + npb = 15; + break; + case 24: + bpp = 1; + npb = 19; + break; + case 16: + bpp = 3; + npb = 31; + break; + case 8: + bpp = 5; + npb = 63; + break; + default: + return -EINVAL; + } + + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp); + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb); + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 6); /* raw mode */ + + return 0; +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_passthrough); + +void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format) +{ + switch (pixel_format) { + case V4L2_PIX_FMT_UYVY: + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */ + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA);/* pix fmt */ + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */ + break; + case V4L2_PIX_FMT_YUYV: + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */ + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8);/* pix fmt */ + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */ + break; + } +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_interleaved); + +void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch, + u32 pixel_format, int stride, + int u_offset, int v_offset) +{ + switch (pixel_format) { + case V4L2_PIX_FMT_YUV420: + ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8); + ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_offset / 8); + break; + case V4L2_PIX_FMT_YVU420: + ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1); + ipu_ch_param_write_field(ch, IPU_FIELD_UBO, v_offset / 8); + ipu_ch_param_write_field(ch, IPU_FIELD_VBO, u_offset / 8); + break; + } +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full); + +void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch, + u32 pixel_format, int stride, int height) +{ + int u_offset, v_offset; + int uv_stride = 0; + + switch (pixel_format) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + uv_stride = stride / 2; + u_offset = stride * height; + v_offset = u_offset + (uv_stride * height / 2); + ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride, + u_offset, v_offset); + break; + } +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar); + +static const struct ipu_rgb def_rgb_32 = { + .red = { .offset = 16, .length = 8, }, + .green = { .offset = 8, .length = 8, }, + .blue = { .offset = 0, .length = 8, }, + .transp = { .offset = 24, .length = 8, }, + .bits_per_pixel = 32, +}; + +static const struct ipu_rgb def_bgr_32 = { + .red = { .offset = 0, .length = 8, }, + .green = { .offset = 8, .length = 8, }, + .blue = { .offset = 16, .length = 8, }, + .transp = { .offset = 24, .length = 8, }, + .bits_per_pixel = 32, +}; + +static const struct ipu_rgb def_rgb_24 = { + .red = { .offset = 16, .length = 8, }, + .green = { .offset = 8, .length = 8, }, + .blue = { .offset = 0, .length = 8, }, + .transp = { .offset = 0, .length = 0, }, + .bits_per_pixel = 24, +}; + +static const struct ipu_rgb def_bgr_24 = { + .red = { .offset = 0, .length = 8, }, + .green = { .offset = 8, .length = 8, }, + .blue = { .offset = 16, .length = 8, }, + .transp = { .offset = 0, .length = 0, }, + .bits_per_pixel = 24, +}; + +static const struct ipu_rgb def_rgb_16 = { + .red = { .offset = 11, .length = 5, }, + .green = { .offset = 5, .length = 6, }, + .blue = { .offset = 0, .length = 5, }, + .transp = { .offset = 0, .length = 0, }, + .bits_per_pixel = 16, +}; + +static const struct ipu_rgb def_bgr_16 = { + .red = { .offset = 0, .length = 5, }, + .green = { .offset = 5, .length = 6, }, + .blue = { .offset = 11, .length = 5, }, + .transp = { .offset = 0, .length = 0, }, + .bits_per_pixel = 16, +}; + +#define Y_OFFSET(pix, x, y) ((x) + pix->width * (y)) +#define U_OFFSET(pix, x, y) ((pix->width * pix->height) + \ + (pix->width * (y) / 4) + (x) / 2) +#define V_OFFSET(pix, x, y) ((pix->width * pix->height) + \ + (pix->width * pix->height / 4) + \ + (pix->width * (y) / 4) + (x) / 2) + +int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc) +{ + switch (drm_fourcc) { + case DRM_FORMAT_YUV420: + case DRM_FORMAT_YVU420: + /* pix format */ + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 2); + /* burst size */ + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31); + break; + case DRM_FORMAT_UYVY: + /* bits/pixel */ + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); + /* pix format */ + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA); + /* burst size */ + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31); + break; + case DRM_FORMAT_YUYV: + /* bits/pixel */ + ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); + /* pix format */ + ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8); + /* burst size */ + ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31); + break; + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + ipu_cpmem_set_format_rgb(ch, &def_bgr_32); + break; + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XRGB8888: + ipu_cpmem_set_format_rgb(ch, &def_rgb_32); + break; + case DRM_FORMAT_BGR888: + ipu_cpmem_set_format_rgb(ch, &def_bgr_24); + break; + case DRM_FORMAT_RGB888: + ipu_cpmem_set_format_rgb(ch, &def_rgb_24); + break; + case DRM_FORMAT_RGB565: + ipu_cpmem_set_format_rgb(ch, &def_rgb_16); + break; + case DRM_FORMAT_BGR565: + ipu_cpmem_set_format_rgb(ch, &def_bgr_16); + break; + default: + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt); + +int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image) +{ + struct v4l2_pix_format *pix = &image->pix; + int y_offset, u_offset, v_offset; + + pr_debug("%s: resolution: %dx%d stride: %d\n", + __func__, pix->width, pix->height, + pix->bytesperline); + + ipu_cpmem_set_resolution(ch, image->rect.width, image->rect.height); + ipu_cpmem_set_stride(ch, pix->bytesperline); + + ipu_cpmem_set_fmt(ch, v4l2_pix_fmt_to_drm_fourcc(pix->pixelformat)); + + switch (pix->pixelformat) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + y_offset = Y_OFFSET(pix, image->rect.left, image->rect.top); + u_offset = U_OFFSET(pix, image->rect.left, + image->rect.top) - y_offset; + v_offset = V_OFFSET(pix, image->rect.left, + image->rect.top) - y_offset; + + ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat, + pix->bytesperline, u_offset, v_offset); + ipu_cpmem_set_buffer(ch, 0, image->phys + y_offset); + break; + case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YUYV: + ipu_cpmem_set_buffer(ch, 0, image->phys + + image->rect.left * 2 + + image->rect.top * image->pix.bytesperline); + break; + case V4L2_PIX_FMT_RGB32: + case V4L2_PIX_FMT_BGR32: + ipu_cpmem_set_buffer(ch, 0, image->phys + + image->rect.left * 4 + + image->rect.top * image->pix.bytesperline); + break; + case V4L2_PIX_FMT_RGB565: + ipu_cpmem_set_buffer(ch, 0, image->phys + + image->rect.left * 2 + + image->rect.top * image->pix.bytesperline); + break; + case V4L2_PIX_FMT_RGB24: + case V4L2_PIX_FMT_BGR24: + ipu_cpmem_set_buffer(ch, 0, image->phys + + image->rect.left * 3 + + image->rect.top * image->pix.bytesperline); + break; + default: + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_GPL(ipu_cpmem_set_image); + +int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base) +{ + struct ipu_cpmem *cpmem; + + cpmem = devm_kzalloc(dev, sizeof(*cpmem), GFP_KERNEL); + if (!cpmem) + return -ENOMEM; + + ipu->cpmem_priv = cpmem; + + spin_lock_init(&cpmem->lock); + cpmem->base = devm_ioremap(dev, base, SZ_128K); + if (!cpmem->base) + return -ENOMEM; + + dev_dbg(dev, "CPMEM base: 0x%08lx remapped to %p\n", + base, cpmem->base); + cpmem->ipu = ipu; + + return 0; +} + +void ipu_cpmem_exit(struct ipu_soc *ipu) +{ +} |