M7350/bootable/bootloader/lk/platform/msm_shared/mdp_lcdc.c

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2024-09-09 08:52:07 +00:00
/*
* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <debug.h>
#include <stdlib.h>
#include <reg.h>
#include <platform/iomap.h>
#include <dev/fbcon.h>
#include <target/display.h>
#include <dev/lcdc.h>
#include <msm_panel.h>
#include <err.h>
#include <mdp4.h>
#include <bits.h>
int mdp_lcdc_config(struct msm_panel_info *pinfo,
struct fbcon_config *fb)
{
unsigned mdp_rgb_size;
unsigned mdp_rgb_size_src;
int hsync_period, vsync_period;
int hsync_start_x, hsync_end_x;
int display_hctl, display_vstart, display_vend;
unsigned mdp_rgb_format = 0;
int active_x, active_y;
int active_hstart_x, active_hend_x;
int active_vstart, active_vend;
int mdp_rev;
struct lcdc_panel_info *lcdc = NULL;
if (pinfo == NULL)
return;
lcdc = &(pinfo->lcdc);
if (lcdc == NULL)
return;
mdp_rev = mdp_get_revision();
mdp_rgb_size = (pinfo->yres << 16) + pinfo->xres;
mdp_rgb_size_src = (fb->height << 16) + fb->width;
dprintf(INFO, "Panel is %d x %d\n",
pinfo->xres + lcdc->xres_pad,
pinfo->yres + lcdc->yres_pad);
/* write fb addr in MDP_DMA_P_BUF_ADDR */
writel(fb->base, MDP_DMA_P_BUF_ADDR);
/* write active region size*/
writel(mdp_rgb_size, MDP_DMA_P_SIZE);
/* set Y-stride value in bytes */
/* Y-stride is defined as the number of bytes
in a line.
*/
writel((pinfo->xres * pinfo->bpp/8), MDP_DMA_P_BUF_Y_STRIDE);
/* Start XY coordinates */
writel(0, MDP_DMA_P_OUT_XY);
if (fb->bpp == 16) {
writel(DMA_PACK_ALIGN_LSB | DMA_PACK_PATTERN_RGB |
DMA_DITHER_EN | DMA_OUT_SEL_LCDC |
DMA_IBUF_FORMAT_RGB565 | DMA_DSTC0G_6BITS |
DMA_DSTC1B_6BITS | DMA_DSTC2R_6BITS,
MDP_DMA_P_CONFIG);
mdp_rgb_format = MDP_RGB_565_FORMAT;
} else if (fb->bpp == 24) {
writel(DMA_PACK_ALIGN_LSB | DMA_PACK_PATTERN_RGB |
DMA_DITHER_EN | DMA_OUT_SEL_LCDC |
DMA_IBUF_FORMAT_RGB888 | DMA_DSTC0G_8BITS |
DMA_DSTC1B_8BITS | DMA_DSTC2R_8BITS,
MDP_DMA_P_CONFIG);
mdp_rgb_format = MDP_RGB_888_FORMAT;
} else {
dprintf(CRITICAL, "Unsupported bpp detected!\n");
return ERR_INVALID_ARGS;
}
hsync_period = lcdc->h_pulse_width +
lcdc->h_back_porch +
pinfo->xres + lcdc->h_front_porch;
vsync_period = (lcdc->v_pulse_width +
lcdc->v_back_porch +
pinfo->yres +
lcdc->v_front_porch) *
hsync_period;
hsync_start_x =
lcdc->h_pulse_width +
lcdc->h_back_porch;
hsync_end_x =
hsync_period - lcdc->h_front_porch - 1;
display_hctl = (hsync_end_x << 16) | hsync_start_x;
display_vstart = (lcdc->v_pulse_width +
lcdc->v_back_porch)
* hsync_period + lcdc->hsync_skew;
display_vend = vsync_period -
(lcdc->v_front_porch * hsync_period)
+lcdc->hsync_skew - 1;
active_x = (pinfo->xres - fb->width)/2;
active_y = (pinfo->yres - fb->height)/2;
active_hstart_x = lcdc->h_pulse_width + lcdc->h_back_porch
+ active_x;
active_hend_x = active_hstart_x + fb->width - 1;
active_vstart = (lcdc->v_pulse_width + lcdc->v_back_porch
+ active_y) * hsync_period
+ lcdc->hsync_skew;
active_vend = active_vstart + (fb->height * hsync_period) - 1;
/* LCDC specific initalizations */
writel((hsync_period << 16) | lcdc->h_pulse_width,
MDP_LCDC_HSYNC_CTL);
writel(vsync_period, MDP_LCDC_VSYNC_PERIOD);
writel(lcdc->v_pulse_width * hsync_period,
MDP_LCDC_VSYNC_PULSE_WIDTH);
writel(display_hctl, MDP_LCDC_DISPLAY_HCTL);
writel(display_vstart, MDP_LCDC_DISPLAY_V_START);
writel(display_vend, MDP_LCDC_DISPLAY_V_END);
if (mdp_rev >= MDP_REV_40) {
writel(BIT(31) | (active_hend_x << 16) | active_hstart_x,
MDP_LCDC_ACTIVE_HCTL);
writel(BIT(31) | active_vstart, MDP_LCDC_ACTIVE_V_START);
writel(active_vend, MDP_LCDC_ACTIVE_V_END);
writel(0xf, MDP_LCDC_BORDER_CLR);
writel(0xff, MDP_LCDC_UNDERFLOW_CTL);
writel(lcdc->hsync_skew,
MDP_LCDC_HSYNC_SKEW);
writel(0x3, MDP_LCDC_CTL_POLARITY);
writel(0, MDP_LCDC_ACTIVE_HCTL);
writel(0, MDP_LCDC_ACTIVE_V_START);
writel(0, MDP_LCDC_ACTIVE_V_END);
/* setting for single layer direct out mode for rgb565 source */
writel(0x100, MDP_LAYERMIXER_IN_CFG);
writel(mdp_rgb_size_src, MDP_RGB1_SRC_SIZE);
writel(mdp_rgb_size, MDP_RGB1_OUT_SIZE);
writel((int)fb->base, MDP_RGB1_SRCP0_ADDR);
writel((fb->stride * fb->bpp / 8), MDP_RGB1_SRC_YSTRIDE1);
writel(0x00, MDP_RGB1_CONSTANT_COLOR);
writel(mdp_rgb_format, MDP_RGB1_SRC_FORMAT);
writel(0x1, MDP_OVERLAYPROC0_CFG);
if (fb->bpp == 16)
writel(0x1, MDP_OVERLAYPROC0_OPMODE);
else if (fb->bpp == 24)
writel(0x0, MDP_OVERLAYPROC0_OPMODE);
/* register flush and enable LCDC */
writel(0x11, MDP_OVERLAY_REG_FLUSH);
} else if (MDP_REV_303 == mdp_rev) {
writel(0x0, MDP_BASE + LCDC_BASE + 0x28);
writel(0xff, MDP_BASE + LCDC_BASE + 0x2c);
writel(lcdc->hsync_skew, MDP_BASE + LCDC_BASE + 0x30);
writel(0x0, MDP_BASE + LCDC_BASE + 0x38);
writel(0x0, MDP_BASE + LCDC_BASE + 0x1c);
writel(0x0, MDP_BASE + LCDC_BASE + 0x20);
writel(0x0, MDP_BASE + LCDC_BASE + 0x24);
}
return NO_ERROR;
}
int mdp_lcdc_on()
{
writel(0x1, MDP_LCDC_EN);
return NO_ERROR;
}
int mdp_lcdc_off()
{
if(!target_cont_splash_screen())
writel(0x0, MDP_LCDC_EN);
return NO_ERROR;
}