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linux/drivers/video/msm/mdp_ppp.c

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/* drivers/video/msm/mdp_ppp.c
*
* Copyright (C) 2007 QUALCOMM Incorporated
* Copyright (C) 2007 Google Incorporated
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*/
#include <linux/fb.h>
#include <linux/file.h>
#include <linux/delay.h>
#include <linux/msm_mdp.h>
#include <mach/msm_fb.h>
#include "mdp_hw.h"
#include "mdp_scale_tables.h"
#define DLOG(x...) do {} while (0)
#define MDP_DOWNSCALE_BLUR (MDP_DOWNSCALE_MAX + 1)
static int downscale_y_table = MDP_DOWNSCALE_MAX;
static int downscale_x_table = MDP_DOWNSCALE_MAX;
struct mdp_regs {
uint32_t src0;
uint32_t src1;
uint32_t dst0;
uint32_t dst1;
uint32_t src_cfg;
uint32_t dst_cfg;
uint32_t src_pack;
uint32_t dst_pack;
uint32_t src_rect;
uint32_t dst_rect;
uint32_t src_ystride;
uint32_t dst_ystride;
uint32_t op;
uint32_t src_bpp;
uint32_t dst_bpp;
uint32_t edge;
uint32_t phasex_init;
uint32_t phasey_init;
uint32_t phasex_step;
uint32_t phasey_step;
};
static uint32_t pack_pattern[] = {
PPP_ARRAY0(PACK_PATTERN)
};
static uint32_t src_img_cfg[] = {
PPP_ARRAY1(CFG, SRC)
};
static uint32_t dst_img_cfg[] = {
PPP_ARRAY1(CFG, DST)
};
static uint32_t bytes_per_pixel[] = {
[MDP_RGB_565] = 2,
[MDP_RGB_888] = 3,
[MDP_XRGB_8888] = 4,
[MDP_ARGB_8888] = 4,
[MDP_RGBA_8888] = 4,
[MDP_BGRA_8888] = 4,
[MDP_Y_CBCR_H2V1] = 1,
[MDP_Y_CBCR_H2V2] = 1,
[MDP_Y_CRCB_H2V1] = 1,
[MDP_Y_CRCB_H2V2] = 1,
[MDP_YCRYCB_H2V1] = 2
};
static uint32_t dst_op_chroma[] = {
PPP_ARRAY1(CHROMA_SAMP, DST)
};
static uint32_t src_op_chroma[] = {
PPP_ARRAY1(CHROMA_SAMP, SRC)
};
static uint32_t bg_op_chroma[] = {
PPP_ARRAY1(CHROMA_SAMP, BG)
};
static void rotate_dst_addr_x(struct mdp_blit_req *req, struct mdp_regs *regs)
{
regs->dst0 += (req->dst_rect.w -
min((uint32_t)16, req->dst_rect.w)) * regs->dst_bpp;
regs->dst1 += (req->dst_rect.w -
min((uint32_t)16, req->dst_rect.w)) * regs->dst_bpp;
}
static void rotate_dst_addr_y(struct mdp_blit_req *req, struct mdp_regs *regs)
{
regs->dst0 += (req->dst_rect.h -
min((uint32_t)16, req->dst_rect.h)) *
regs->dst_ystride;
regs->dst1 += (req->dst_rect.h -
min((uint32_t)16, req->dst_rect.h)) *
regs->dst_ystride;
}
static void blit_rotate(struct mdp_blit_req *req,
struct mdp_regs *regs)
{
if (req->flags == MDP_ROT_NOP)
return;
regs->op |= PPP_OP_ROT_ON;
if ((req->flags & MDP_ROT_90 || req->flags & MDP_FLIP_LR) &&
!(req->flags & MDP_ROT_90 && req->flags & MDP_FLIP_LR))
rotate_dst_addr_x(req, regs);
if (req->flags & MDP_ROT_90)
regs->op |= PPP_OP_ROT_90;
if (req->flags & MDP_FLIP_UD) {
regs->op |= PPP_OP_FLIP_UD;
rotate_dst_addr_y(req, regs);
}
if (req->flags & MDP_FLIP_LR)
regs->op |= PPP_OP_FLIP_LR;
}
static void blit_convert(struct mdp_blit_req *req, struct mdp_regs *regs)
{
if (req->src.format == req->dst.format)
return;
if (IS_RGB(req->src.format) && IS_YCRCB(req->dst.format)) {
regs->op |= PPP_OP_CONVERT_RGB2YCBCR | PPP_OP_CONVERT_ON;
} else if (IS_YCRCB(req->src.format) && IS_RGB(req->dst.format)) {
regs->op |= PPP_OP_CONVERT_YCBCR2RGB | PPP_OP_CONVERT_ON;
if (req->dst.format == MDP_RGB_565)
regs->op |= PPP_OP_CONVERT_MATRIX_SECONDARY;
}
}
#define GET_BIT_RANGE(value, high, low) \
(((1 << (high - low + 1)) - 1) & (value >> low))
static uint32_t transp_convert(struct mdp_blit_req *req)
{
uint32_t transp = 0;
if (req->src.format == MDP_RGB_565) {
/* pad each value to 8 bits by copying the high bits into the
* low end, convert RGB to RBG by switching low 2 components */
transp |= ((GET_BIT_RANGE(req->transp_mask, 15, 11) << 3) |
(GET_BIT_RANGE(req->transp_mask, 15, 13))) << 16;
transp |= ((GET_BIT_RANGE(req->transp_mask, 4, 0) << 3) |
(GET_BIT_RANGE(req->transp_mask, 4, 2))) << 8;
transp |= (GET_BIT_RANGE(req->transp_mask, 10, 5) << 2) |
(GET_BIT_RANGE(req->transp_mask, 10, 9));
} else {
/* convert RGB to RBG */
transp |= (GET_BIT_RANGE(req->transp_mask, 15, 8)) |
(GET_BIT_RANGE(req->transp_mask, 23, 16) << 16) |
(GET_BIT_RANGE(req->transp_mask, 7, 0) << 8);
}
return transp;
}
#undef GET_BIT_RANGE
static void blit_blend(struct mdp_blit_req *req, struct mdp_regs *regs)
{
/* TRANSP BLEND */
if (req->transp_mask != MDP_TRANSP_NOP) {
req->transp_mask = transp_convert(req);
if (req->alpha != MDP_ALPHA_NOP) {
/* use blended transparancy mode
* pixel = (src == transp) ? dst : blend
* blend is combo of blend_eq_sel and
* blend_alpha_sel */
regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON |
PPP_OP_BLEND_ALPHA_BLEND_NORMAL |
PPP_OP_BLEND_CONSTANT_ALPHA |
PPP_BLEND_ALPHA_TRANSP;
} else {
/* simple transparancy mode
* pixel = (src == transp) ? dst : src */
regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON |
PPP_OP_BLEND_SRCPIXEL_TRANSP;
}
}
req->alpha &= 0xff;
/* ALPHA BLEND */
if (HAS_ALPHA(req->src.format)) {
regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON |
PPP_OP_BLEND_SRCPIXEL_ALPHA;
} else if (req->alpha < MDP_ALPHA_NOP) {
/* just blend by alpha */
regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON |
PPP_OP_BLEND_ALPHA_BLEND_NORMAL |
PPP_OP_BLEND_CONSTANT_ALPHA;
}
regs->op |= bg_op_chroma[req->dst.format];
}
#define ONE_HALF (1LL << 32)
#define ONE (1LL << 33)
#define TWO (2LL << 33)
#define THREE (3LL << 33)
#define FRAC_MASK (ONE - 1)
#define INT_MASK (~FRAC_MASK)
static int scale_params(uint32_t dim_in, uint32_t dim_out, uint32_t origin,
uint32_t *phase_init, uint32_t *phase_step)
{
/* to improve precicsion calculations are done in U31.33 and converted
* to U3.29 at the end */
int64_t k1, k2, k3, k4, tmp;
uint64_t n, d, os, os_p, od, od_p, oreq;
unsigned rpa = 0;
int64_t ip64, delta;
if (dim_out % 3 == 0)
rpa = !(dim_in % (dim_out / 3));
n = ((uint64_t)dim_out) << 34;
d = dim_in;
if (!d)
return -1;
do_div(n, d);
k3 = (n + 1) >> 1;
if ((k3 >> 4) < (1LL << 27) || (k3 >> 4) > (1LL << 31)) {
DLOG("crap bad scale\n");
return -1;
}
n = ((uint64_t)dim_in) << 34;
d = (uint64_t)dim_out;
if (!d)
return -1;
do_div(n, d);
k1 = (n + 1) >> 1;
k2 = (k1 - ONE) >> 1;
*phase_init = (int)(k2 >> 4);
k4 = (k3 - ONE) >> 1;
if (rpa) {
os = ((uint64_t)origin << 33) - ONE_HALF;
tmp = (dim_out * os) + ONE_HALF;
if (!dim_in)
return -1;
do_div(tmp, dim_in);
od = tmp - ONE_HALF;
} else {
os = ((uint64_t)origin << 1) - 1;
od = (((k3 * os) >> 1) + k4);
}
od_p = od & INT_MASK;
if (od_p != od)
od_p += ONE;
if (rpa) {
tmp = (dim_in * od_p) + ONE_HALF;
if (!dim_in)
return -1;
do_div(tmp, dim_in);
os_p = tmp - ONE_HALF;
} else {
os_p = ((k1 * (od_p >> 33)) + k2);
}
oreq = (os_p & INT_MASK) - ONE;
ip64 = os_p - oreq;
delta = ((int64_t)(origin) << 33) - oreq;
ip64 -= delta;
/* limit to valid range before the left shift */
delta = (ip64 & (1LL << 63)) ? 4 : -4;
delta <<= 33;
while (abs((int)(ip64 >> 33)) > 4)
ip64 += delta;
*phase_init = (int)(ip64 >> 4);
*phase_step = (uint32_t)(k1 >> 4);
return 0;
}
static void load_scale_table(const struct mdp_info *mdp,
struct mdp_table_entry *table, int len)
{
int i;
for (i = 0; i < len; i++)
mdp_writel(mdp, table[i].val, table[i].reg);
}
enum {
IMG_LEFT,
IMG_RIGHT,
IMG_TOP,
IMG_BOTTOM,
};
static void get_edge_info(uint32_t src, uint32_t src_coord, uint32_t dst,
uint32_t *interp1, uint32_t *interp2,
uint32_t *repeat1, uint32_t *repeat2) {
if (src > 3 * dst) {
*interp1 = 0;
*interp2 = src - 1;
*repeat1 = 0;
*repeat2 = 0;
} else if (src == 3 * dst) {
*interp1 = 0;
*interp2 = src;
*repeat1 = 0;
*repeat2 = 1;
} else if (src > dst && src < 3 * dst) {
*interp1 = -1;
*interp2 = src;
*repeat1 = 1;
*repeat2 = 1;
} else if (src == dst) {
*interp1 = -1;
*interp2 = src + 1;
*repeat1 = 1;
*repeat2 = 2;
} else {
*interp1 = -2;
*interp2 = src + 1;
*repeat1 = 2;
*repeat2 = 2;
}
*interp1 += src_coord;
*interp2 += src_coord;
}
static int get_edge_cond(struct mdp_blit_req *req, struct mdp_regs *regs)
{
int32_t luma_interp[4];
int32_t luma_repeat[4];
int32_t chroma_interp[4];
int32_t chroma_bound[4];
int32_t chroma_repeat[4];
uint32_t dst_w, dst_h;
memset(&luma_interp, 0, sizeof(int32_t) * 4);
memset(&luma_repeat, 0, sizeof(int32_t) * 4);
memset(&chroma_interp, 0, sizeof(int32_t) * 4);
memset(&chroma_bound, 0, sizeof(int32_t) * 4);
memset(&chroma_repeat, 0, sizeof(int32_t) * 4);
regs->edge = 0;
if (req->flags & MDP_ROT_90) {
dst_w = req->dst_rect.h;
dst_h = req->dst_rect.w;
} else {
dst_w = req->dst_rect.w;
dst_h = req->dst_rect.h;
}
if (regs->op & (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON)) {
get_edge_info(req->src_rect.h, req->src_rect.y, dst_h,
&luma_interp[IMG_TOP], &luma_interp[IMG_BOTTOM],
&luma_repeat[IMG_TOP], &luma_repeat[IMG_BOTTOM]);
get_edge_info(req->src_rect.w, req->src_rect.x, dst_w,
&luma_interp[IMG_LEFT], &luma_interp[IMG_RIGHT],
&luma_repeat[IMG_LEFT], &luma_repeat[IMG_RIGHT]);
} else {
luma_interp[IMG_LEFT] = req->src_rect.x;
luma_interp[IMG_RIGHT] = req->src_rect.x + req->src_rect.w - 1;
luma_interp[IMG_TOP] = req->src_rect.y;
luma_interp[IMG_BOTTOM] = req->src_rect.y + req->src_rect.h - 1;
luma_repeat[IMG_LEFT] = 0;
luma_repeat[IMG_TOP] = 0;
luma_repeat[IMG_RIGHT] = 0;
luma_repeat[IMG_BOTTOM] = 0;
}
chroma_interp[IMG_LEFT] = luma_interp[IMG_LEFT];
chroma_interp[IMG_RIGHT] = luma_interp[IMG_RIGHT];
chroma_interp[IMG_TOP] = luma_interp[IMG_TOP];
chroma_interp[IMG_BOTTOM] = luma_interp[IMG_BOTTOM];
chroma_bound[IMG_LEFT] = req->src_rect.x;
chroma_bound[IMG_RIGHT] = req->src_rect.x + req->src_rect.w - 1;
chroma_bound[IMG_TOP] = req->src_rect.y;
chroma_bound[IMG_BOTTOM] = req->src_rect.y + req->src_rect.h - 1;
if (IS_YCRCB(req->src.format)) {
chroma_interp[IMG_LEFT] = chroma_interp[IMG_LEFT] >> 1;
chroma_interp[IMG_RIGHT] = (chroma_interp[IMG_RIGHT] + 1) >> 1;
chroma_bound[IMG_LEFT] = chroma_bound[IMG_LEFT] >> 1;
chroma_bound[IMG_RIGHT] = chroma_bound[IMG_RIGHT] >> 1;
}
if (req->src.format == MDP_Y_CBCR_H2V2 ||
req->src.format == MDP_Y_CRCB_H2V2) {
chroma_interp[IMG_TOP] = (chroma_interp[IMG_TOP] - 1) >> 1;
chroma_interp[IMG_BOTTOM] = (chroma_interp[IMG_BOTTOM] + 1)
>> 1;
chroma_bound[IMG_TOP] = (chroma_bound[IMG_TOP] + 1) >> 1;
chroma_bound[IMG_BOTTOM] = chroma_bound[IMG_BOTTOM] >> 1;
}
chroma_repeat[IMG_LEFT] = chroma_bound[IMG_LEFT] -
chroma_interp[IMG_LEFT];
chroma_repeat[IMG_RIGHT] = chroma_interp[IMG_RIGHT] -
chroma_bound[IMG_RIGHT];
chroma_repeat[IMG_TOP] = chroma_bound[IMG_TOP] -
chroma_interp[IMG_TOP];
chroma_repeat[IMG_BOTTOM] = chroma_interp[IMG_BOTTOM] -
chroma_bound[IMG_BOTTOM];
if (chroma_repeat[IMG_LEFT] < 0 || chroma_repeat[IMG_LEFT] > 3 ||
chroma_repeat[IMG_RIGHT] < 0 || chroma_repeat[IMG_RIGHT] > 3 ||
chroma_repeat[IMG_TOP] < 0 || chroma_repeat[IMG_TOP] > 3 ||
chroma_repeat[IMG_BOTTOM] < 0 || chroma_repeat[IMG_BOTTOM] > 3 ||
luma_repeat[IMG_LEFT] < 0 || luma_repeat[IMG_LEFT] > 3 ||
luma_repeat[IMG_RIGHT] < 0 || luma_repeat[IMG_RIGHT] > 3 ||
luma_repeat[IMG_TOP] < 0 || luma_repeat[IMG_TOP] > 3 ||
luma_repeat[IMG_BOTTOM] < 0 || luma_repeat[IMG_BOTTOM] > 3)
return -1;
regs->edge |= (chroma_repeat[IMG_LEFT] & 3) << MDP_LEFT_CHROMA;
regs->edge |= (chroma_repeat[IMG_RIGHT] & 3) << MDP_RIGHT_CHROMA;
regs->edge |= (chroma_repeat[IMG_TOP] & 3) << MDP_TOP_CHROMA;
regs->edge |= (chroma_repeat[IMG_BOTTOM] & 3) << MDP_BOTTOM_CHROMA;
regs->edge |= (luma_repeat[IMG_LEFT] & 3) << MDP_LEFT_LUMA;
regs->edge |= (luma_repeat[IMG_RIGHT] & 3) << MDP_RIGHT_LUMA;
regs->edge |= (luma_repeat[IMG_TOP] & 3) << MDP_TOP_LUMA;
regs->edge |= (luma_repeat[IMG_BOTTOM] & 3) << MDP_BOTTOM_LUMA;
return 0;
}
static int blit_scale(const struct mdp_info *mdp, struct mdp_blit_req *req,
struct mdp_regs *regs)
{
uint32_t phase_init_x, phase_init_y, phase_step_x, phase_step_y;
uint32_t scale_factor_x, scale_factor_y;
uint32_t downscale;
uint32_t dst_w, dst_h;
if (req->flags & MDP_ROT_90) {
dst_w = req->dst_rect.h;
dst_h = req->dst_rect.w;
} else {
dst_w = req->dst_rect.w;
dst_h = req->dst_rect.h;
}
if ((req->src_rect.w == dst_w) && (req->src_rect.h == dst_h) &&
!(req->flags & MDP_BLUR)) {
regs->phasex_init = 0;
regs->phasey_init = 0;
regs->phasex_step = 0;
regs->phasey_step = 0;
return 0;
}
if (scale_params(req->src_rect.w, dst_w, 1, &phase_init_x,
&phase_step_x) ||
scale_params(req->src_rect.h, dst_h, 1, &phase_init_y,
&phase_step_y))
return -1;
scale_factor_x = (dst_w * 10) / req->src_rect.w;
scale_factor_y = (dst_h * 10) / req->src_rect.h;
if (scale_factor_x > 8)
downscale = MDP_DOWNSCALE_PT8TO1;
else if (scale_factor_x > 6)
downscale = MDP_DOWNSCALE_PT6TOPT8;
else if (scale_factor_x > 4)
downscale = MDP_DOWNSCALE_PT4TOPT6;
else
downscale = MDP_DOWNSCALE_PT2TOPT4;
if (downscale != downscale_x_table) {
load_scale_table(mdp, mdp_downscale_x_table[downscale], 64);
downscale_x_table = downscale;
}
if (scale_factor_y > 8)
downscale = MDP_DOWNSCALE_PT8TO1;
else if (scale_factor_y > 6)
downscale = MDP_DOWNSCALE_PT6TOPT8;
else if (scale_factor_y > 4)
downscale = MDP_DOWNSCALE_PT4TOPT6;
else
downscale = MDP_DOWNSCALE_PT2TOPT4;
if (downscale != downscale_y_table) {
load_scale_table(mdp, mdp_downscale_y_table[downscale], 64);
downscale_y_table = downscale;
}
regs->phasex_init = phase_init_x;
regs->phasey_init = phase_init_y;
regs->phasex_step = phase_step_x;
regs->phasey_step = phase_step_y;
regs->op |= (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON);
return 0;
}
static void blit_blur(const struct mdp_info *mdp, struct mdp_blit_req *req,
struct mdp_regs *regs)
{
if (!(req->flags & MDP_BLUR))
return;
if (!(downscale_x_table == MDP_DOWNSCALE_BLUR &&
downscale_y_table == MDP_DOWNSCALE_BLUR)) {
load_scale_table(mdp, mdp_gaussian_blur_table, 128);
downscale_x_table = MDP_DOWNSCALE_BLUR;
downscale_y_table = MDP_DOWNSCALE_BLUR;
}
regs->op |= (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON);
}
#define IMG_LEN(rect_h, w, rect_w, bpp) (((rect_h) * w) * bpp)
#define Y_TO_CRCB_RATIO(format) \
((format == MDP_Y_CBCR_H2V2 || format == MDP_Y_CRCB_H2V2) ? 2 :\
(format == MDP_Y_CBCR_H2V1 || format == MDP_Y_CRCB_H2V1) ? 1 : 1)
static void get_len(struct mdp_img *img, struct mdp_rect *rect, uint32_t bpp,
uint32_t *len0, uint32_t *len1)
{
*len0 = IMG_LEN(rect->h, img->width, rect->w, bpp);
if (IS_PSEUDOPLNR(img->format))
*len1 = *len0/Y_TO_CRCB_RATIO(img->format);
else
*len1 = 0;
}
static int valid_src_dst(unsigned long src_start, unsigned long src_len,
unsigned long dst_start, unsigned long dst_len,
struct mdp_blit_req *req, struct mdp_regs *regs)
{
unsigned long src_min_ok = src_start;
unsigned long src_max_ok = src_start + src_len;
unsigned long dst_min_ok = dst_start;
unsigned long dst_max_ok = dst_start + dst_len;
uint32_t src0_len, src1_len, dst0_len, dst1_len;
get_len(&req->src, &req->src_rect, regs->src_bpp, &src0_len,
&src1_len);
get_len(&req->dst, &req->dst_rect, regs->dst_bpp, &dst0_len,
&dst1_len);
if (regs->src0 < src_min_ok || regs->src0 > src_max_ok ||
regs->src0 + src0_len > src_max_ok) {
DLOG("invalid_src %x %x %lx %lx\n", regs->src0,
src0_len, src_min_ok, src_max_ok);
return 0;
}
if (regs->src_cfg & PPP_SRC_PLANE_PSEUDOPLNR) {
if (regs->src1 < src_min_ok || regs->src1 > src_max_ok ||
regs->src1 + src1_len > src_max_ok) {
DLOG("invalid_src1");
return 0;
}
}
if (regs->dst0 < dst_min_ok || regs->dst0 > dst_max_ok ||
regs->dst0 + dst0_len > dst_max_ok) {
DLOG("invalid_dst");
return 0;
}
if (regs->dst_cfg & PPP_SRC_PLANE_PSEUDOPLNR) {
if (regs->dst1 < dst_min_ok || regs->dst1 > dst_max_ok ||
regs->dst1 + dst1_len > dst_max_ok) {
DLOG("invalid_dst1");
return 0;
}
}
return 1;
}
static void flush_imgs(struct mdp_blit_req *req, struct mdp_regs *regs,
struct file *src_file, struct file *dst_file)
{
}
static void get_chroma_addr(struct mdp_img *img, struct mdp_rect *rect,
uint32_t base, uint32_t bpp, uint32_t cfg,
uint32_t *addr, uint32_t *ystride)
{
uint32_t compress_v = Y_TO_CRCB_RATIO(img->format);
uint32_t compress_h = 2;
uint32_t offset;
if (IS_PSEUDOPLNR(img->format)) {
offset = (rect->x / compress_h) * compress_h;
offset += rect->y == 0 ? 0 :
((rect->y + 1) / compress_v) * img->width;
*addr = base + (img->width * img->height * bpp);
*addr += offset * bpp;
*ystride |= *ystride << 16;
} else {
*addr = 0;
}
}
static int send_blit(const struct mdp_info *mdp, struct mdp_blit_req *req,
struct mdp_regs *regs, struct file *src_file,
struct file *dst_file)
{
mdp_writel(mdp, 1, 0x060);
mdp_writel(mdp, regs->src_rect, PPP_ADDR_SRC_ROI);
mdp_writel(mdp, regs->src0, PPP_ADDR_SRC0);
mdp_writel(mdp, regs->src1, PPP_ADDR_SRC1);
mdp_writel(mdp, regs->src_ystride, PPP_ADDR_SRC_YSTRIDE);
mdp_writel(mdp, regs->src_cfg, PPP_ADDR_SRC_CFG);
mdp_writel(mdp, regs->src_pack, PPP_ADDR_SRC_PACK_PATTERN);
mdp_writel(mdp, regs->op, PPP_ADDR_OPERATION);
mdp_writel(mdp, regs->phasex_init, PPP_ADDR_PHASEX_INIT);
mdp_writel(mdp, regs->phasey_init, PPP_ADDR_PHASEY_INIT);
mdp_writel(mdp, regs->phasex_step, PPP_ADDR_PHASEX_STEP);
mdp_writel(mdp, regs->phasey_step, PPP_ADDR_PHASEY_STEP);
mdp_writel(mdp, (req->alpha << 24) | (req->transp_mask & 0xffffff),
PPP_ADDR_ALPHA_TRANSP);
mdp_writel(mdp, regs->dst_cfg, PPP_ADDR_DST_CFG);
mdp_writel(mdp, regs->dst_pack, PPP_ADDR_DST_PACK_PATTERN);
mdp_writel(mdp, regs->dst_rect, PPP_ADDR_DST_ROI);
mdp_writel(mdp, regs->dst0, PPP_ADDR_DST0);
mdp_writel(mdp, regs->dst1, PPP_ADDR_DST1);
mdp_writel(mdp, regs->dst_ystride, PPP_ADDR_DST_YSTRIDE);
mdp_writel(mdp, regs->edge, PPP_ADDR_EDGE);
if (regs->op & PPP_OP_BLEND_ON) {
mdp_writel(mdp, regs->dst0, PPP_ADDR_BG0);
mdp_writel(mdp, regs->dst1, PPP_ADDR_BG1);
mdp_writel(mdp, regs->dst_ystride, PPP_ADDR_BG_YSTRIDE);
mdp_writel(mdp, src_img_cfg[req->dst.format], PPP_ADDR_BG_CFG);
mdp_writel(mdp, pack_pattern[req->dst.format],
PPP_ADDR_BG_PACK_PATTERN);
}
flush_imgs(req, regs, src_file, dst_file);
mdp_writel(mdp, 0x1000, MDP_DISPLAY0_START);
return 0;
}
int mdp_ppp_blit(const struct mdp_info *mdp, struct mdp_blit_req *req,
struct file *src_file, unsigned long src_start, unsigned long src_len,
struct file *dst_file, unsigned long dst_start, unsigned long dst_len)
{
struct mdp_regs regs = {0};
if (unlikely(req->src.format >= MDP_IMGTYPE_LIMIT ||
req->dst.format >= MDP_IMGTYPE_LIMIT)) {
printk(KERN_ERR "mpd_ppp: img is of wrong format\n");
return -EINVAL;
}
if (unlikely(req->src_rect.x > req->src.width ||
req->src_rect.y > req->src.height ||
req->dst_rect.x > req->dst.width ||
req->dst_rect.y > req->dst.height)) {
printk(KERN_ERR "mpd_ppp: img rect is outside of img!\n");
return -EINVAL;
}
/* set the src image configuration */
regs.src_cfg = src_img_cfg[req->src.format];
regs.src_cfg |= (req->src_rect.x & 0x1) ? PPP_SRC_BPP_ROI_ODD_X : 0;
regs.src_cfg |= (req->src_rect.y & 0x1) ? PPP_SRC_BPP_ROI_ODD_Y : 0;
regs.src_rect = (req->src_rect.h << 16) | req->src_rect.w;
regs.src_pack = pack_pattern[req->src.format];
/* set the dest image configuration */
regs.dst_cfg = dst_img_cfg[req->dst.format] | PPP_DST_OUT_SEL_AXI;
regs.dst_rect = (req->dst_rect.h << 16) | req->dst_rect.w;
regs.dst_pack = pack_pattern[req->dst.format];
/* set src, bpp, start pixel and ystride */
regs.src_bpp = bytes_per_pixel[req->src.format];
regs.src0 = src_start + req->src.offset;
regs.src_ystride = req->src.width * regs.src_bpp;
get_chroma_addr(&req->src, &req->src_rect, regs.src0, regs.src_bpp,
regs.src_cfg, &regs.src1, &regs.src_ystride);
regs.src0 += (req->src_rect.x + (req->src_rect.y * req->src.width)) *
regs.src_bpp;
/* set dst, bpp, start pixel and ystride */
regs.dst_bpp = bytes_per_pixel[req->dst.format];
regs.dst0 = dst_start + req->dst.offset;
regs.dst_ystride = req->dst.width * regs.dst_bpp;
get_chroma_addr(&req->dst, &req->dst_rect, regs.dst0, regs.dst_bpp,
regs.dst_cfg, &regs.dst1, &regs.dst_ystride);
regs.dst0 += (req->dst_rect.x + (req->dst_rect.y * req->dst.width)) *
regs.dst_bpp;
if (!valid_src_dst(src_start, src_len, dst_start, dst_len, req,
&regs)) {
printk(KERN_ERR "mpd_ppp: final src or dst location is "
"invalid, are you trying to make an image too large "
"or to place it outside the screen?\n");
return -EINVAL;
}
/* set up operation register */
regs.op = 0;
blit_rotate(req, &regs);
blit_convert(req, &regs);
if (req->flags & MDP_DITHER)
regs.op |= PPP_OP_DITHER_EN;
blit_blend(req, &regs);
if (blit_scale(mdp, req, &regs)) {
printk(KERN_ERR "mpd_ppp: error computing scale for img.\n");
return -EINVAL;
}
blit_blur(mdp, req, &regs);
regs.op |= dst_op_chroma[req->dst.format] |
src_op_chroma[req->src.format];
/* if the image is YCRYCB, the x and w must be even */
if (unlikely(req->src.format == MDP_YCRYCB_H2V1)) {
req->src_rect.x = req->src_rect.x & (~0x1);
req->src_rect.w = req->src_rect.w & (~0x1);
req->dst_rect.x = req->dst_rect.x & (~0x1);
req->dst_rect.w = req->dst_rect.w & (~0x1);
}
if (get_edge_cond(req, &regs))
return -EINVAL;
send_blit(mdp, req, &regs, src_file, dst_file);
return 0;
}
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