- 根目录:
- drivers
- gpu
- ipu-v3
- ipu-cpmem.c
/*
* 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_ROT_HF_VF IPU_CPMEM_WORD(0, 119, 3)
#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_YUV422P:
return DRM_FORMAT_YUV422;
case V4L2_PIX_FMT_YVU420:
return DRM_FORMAT_YVU420;
case V4L2_PIX_FMT_NV12:
return DRM_FORMAT_NV12;
case V4L2_PIX_FMT_NV16:
return DRM_FORMAT_NV16;
}
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_axi_id(struct ipuv3_channel *ch, u32 id)
{
id &= 0x3;
ipu_ch_param_write_field(ch, IPU_FIELD_ID, id);
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_axi_id);
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);
void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch)
{
ipu_ch_param_write_field(ch, IPU_FIELD_BM, 1);
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_block_mode);
void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
enum ipu_rotate_mode rot)
{
u32 temp_rot = bitrev8(rot) >> 5;
ipu_ch_param_write_field(ch, IPU_FIELD_ROT_HF_VF, temp_rot);
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_rotation);
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:
case V4L2_PIX_FMT_YUV422P:
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;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, stride - 1);
ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_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;
case V4L2_PIX_FMT_YUV422P:
uv_stride = stride / 2;
u_offset = stride * height;
v_offset = u_offset + (uv_stride * height);
ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
u_offset = stride * height;
ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
u_offset, 0);
break;
}
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
static const struct ipu_rgb def_xrgb_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_xbgr_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_rgbx_32 = {
.red = { .offset = 24, .length = 8, },
.green = { .offset = 16, .length = 8, },
.blue = { .offset = 8, .length = 8, },
.transp = { .offset = 0, .length = 8, },
.bits_per_pixel = 32,
};
static const struct ipu_rgb def_bgrx_32 = {
.red = { .offset = 8, .length = 8, },
.green = { .offset = 16, .length = 8, },
.blue = { .offset = 24, .length = 8, },
.transp = { .offset = 0, .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,
};
static const struct ipu_rgb def_argb_16 = {
.red = { .offset = 10, .length = 5, },
.green = { .offset = 5, .length = 5, },
.blue = { .offset = 0, .length = 5, },
.transp = { .offset = 15, .length = 1, },
.bits_per_pixel = 16,
};
static const struct ipu_rgb def_argb_16_4444 = {
.red = { .offset = 8, .length = 4, },
.green = { .offset = 4, .length = 4, },
.blue = { .offset = 0, .length = 4, },
.transp = { .offset = 12, .length = 4, },
.bits_per_pixel = 16,
};
static const struct ipu_rgb def_abgr_16 = {
.red = { .offset = 0, .length = 5, },
.green = { .offset = 5, .length = 5, },
.blue = { .offset = 10, .length = 5, },
.transp = { .offset = 15, .length = 1, },
.bits_per_pixel = 16,
};
static const struct ipu_rgb def_rgba_16 = {
.red = { .offset = 11, .length = 5, },
.green = { .offset = 6, .length = 5, },
.blue = { .offset = 1, .length = 5, },
.transp = { .offset = 0, .length = 1, },
.bits_per_pixel = 16,
};
static const struct ipu_rgb def_bgra_16 = {
.red = { .offset = 1, .length = 5, },
.green = { .offset = 6, .length = 5, },
.blue = { .offset = 11, .length = 5, },
.transp = { .offset = 0, .length = 1, },
.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)
#define U2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
(pix->width * (y) / 2) + (x) / 2)
#define V2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
(pix->width * pix->height / 2) + \
(pix->width * (y) / 2) + (x) / 2)
#define UV_OFFSET(pix, x, y) ((pix->width * pix->height) + \
(pix->width * (y) / 2) + (x))
#define UV2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
(pix->width * y) + (x))
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_YUV422:
case DRM_FORMAT_YVU422:
/* pix format */
ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 1);
/* burst size */
ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
break;
case DRM_FORMAT_NV12:
/* pix format */
ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 4);
/* burst size */
ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
break;
case DRM_FORMAT_NV16:
/* pix format */
ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 3);
/* 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_xbgr_32);
break;
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XRGB8888:
ipu_cpmem_set_format_rgb(ch, &def_xrgb_32);
break;
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_RGBX8888:
ipu_cpmem_set_format_rgb(ch, &def_rgbx_32);
break;
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_BGRX8888:
ipu_cpmem_set_format_rgb(ch, &def_bgrx_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;
case DRM_FORMAT_ARGB1555:
ipu_cpmem_set_format_rgb(ch, &def_argb_16);
break;
case DRM_FORMAT_ABGR1555:
ipu_cpmem_set_format_rgb(ch, &def_abgr_16);
break;
case DRM_FORMAT_RGBA5551:
ipu_cpmem_set_format_rgb(ch, &def_rgba_16);
break;
case DRM_FORMAT_BGRA5551:
ipu_cpmem_set_format_rgb(ch, &def_bgra_16);
break;
case DRM_FORMAT_ARGB4444:
ipu_cpmem_set_format_rgb(ch, &def_argb_16_4444);
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 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:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = U_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
v_offset = V_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_YUV422P:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = U2_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
v_offset = V2_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV12:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = UV_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
v_offset = 0;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV16:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = UV2_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
v_offset = 0;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_RGB565:
offset = image->rect.left * 2 +
image->rect.top * pix->bytesperline;
break;
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_BGR32:
offset = image->rect.left * 4 +
image->rect.top * pix->bytesperline;
break;
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_BGR24:
offset = image->rect.left * 3 +
image->rect.top * pix->bytesperline;
break;
default:
return -EINVAL;
}
ipu_cpmem_set_buffer(ch, 0, image->phys0 + offset);
ipu_cpmem_set_buffer(ch, 1, image->phys1 + offset);
return 0;
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_image);
void ipu_cpmem_dump(struct ipuv3_channel *ch)
{
struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch);
struct ipu_soc *ipu = ch->ipu;
int chno = ch->num;
dev_dbg(ipu->dev, "ch %d word 0 - %08X %08X %08X %08X %08X\n", chno,
readl(&p->word[0].data[0]),
readl(&p->word[0].data[1]),
readl(&p->word[0].data[2]),
readl(&p->word[0].data[3]),
readl(&p->word[0].data[4]));
dev_dbg(ipu->dev, "ch %d word 1 - %08X %08X %08X %08X %08X\n", chno,
readl(&p->word[1].data[0]),
readl(&p->word[1].data[1]),
readl(&p->word[1].data[2]),
readl(&p->word[1].data[3]),
readl(&p->word[1].data[4]));
dev_dbg(ipu->dev, "PFS 0x%x, ",
ipu_ch_param_read_field(ch, IPU_FIELD_PFS));
dev_dbg(ipu->dev, "BPP 0x%x, ",
ipu_ch_param_read_field(ch, IPU_FIELD_BPP));
dev_dbg(ipu->dev, "NPB 0x%x\n",
ipu_ch_param_read_field(ch, IPU_FIELD_NPB));
dev_dbg(ipu->dev, "FW %d, ",
ipu_ch_param_read_field(ch, IPU_FIELD_FW));
dev_dbg(ipu->dev, "FH %d, ",
ipu_ch_param_read_field(ch, IPU_FIELD_FH));
dev_dbg(ipu->dev, "EBA0 0x%x\n",
ipu_ch_param_read_field(ch, IPU_FIELD_EBA0) << 3);
dev_dbg(ipu->dev, "EBA1 0x%x\n",
ipu_ch_param_read_field(ch, IPU_FIELD_EBA1) << 3);
dev_dbg(ipu->dev, "Stride %d\n",
ipu_ch_param_read_field(ch, IPU_FIELD_SL));
dev_dbg(ipu->dev, "scan_order %d\n",
ipu_ch_param_read_field(ch, IPU_FIELD_SO));
dev_dbg(ipu->dev, "uv_stride %d\n",
ipu_ch_param_read_field(ch, IPU_FIELD_SLUV));
dev_dbg(ipu->dev, "u_offset 0x%x\n",
ipu_ch_param_read_field(ch, IPU_FIELD_UBO) << 3);
dev_dbg(ipu->dev, "v_offset 0x%x\n",
ipu_ch_param_read_field(ch, IPU_FIELD_VBO) << 3);
dev_dbg(ipu->dev, "Width0 %d+1, ",
ipu_ch_param_read_field(ch, IPU_FIELD_WID0));
dev_dbg(ipu->dev, "Width1 %d+1, ",
ipu_ch_param_read_field(ch, IPU_FIELD_WID1));
dev_dbg(ipu->dev, "Width2 %d+1, ",
ipu_ch_param_read_field(ch, IPU_FIELD_WID2));
dev_dbg(ipu->dev, "Width3 %d+1, ",
ipu_ch_param_read_field(ch, IPU_FIELD_WID3));
dev_dbg(ipu->dev, "Offset0 %d, ",
ipu_ch_param_read_field(ch, IPU_FIELD_OFS0));
dev_dbg(ipu->dev, "Offset1 %d, ",
ipu_ch_param_read_field(ch, IPU_FIELD_OFS1));
dev_dbg(ipu->dev, "Offset2 %d, ",
ipu_ch_param_read_field(ch, IPU_FIELD_OFS2));
dev_dbg(ipu->dev, "Offset3 %d\n",
ipu_ch_param_read_field(ch, IPU_FIELD_OFS3));
}
EXPORT_SYMBOL_GPL(ipu_cpmem_dump);
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)
{
}