SAMA5 LCDC: Add 'skeleton' files that will eventually become an LCDC driver for the SAMA5
This commit is contained in:
Gregory Nutt
parent
f6a90114b1
commit
d3fa588250
@ -5715,4 +5715,6 @@
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target endpoint (2013-10-5).
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* net/netdev_rxnotify.c and others: Use the new signature of rxnotify
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caused by the routing table. From Max Holtzberg (2013-10-6).
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* arch/arm/src/sama5/sam_lcdc.c and .h: Empty "skeleton" file that
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will eventually become an LCDC driver for the SAMA5 (2013-10-6).
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@ -136,7 +136,7 @@ static int lpc17_setcursor(FAR struct fb_vtable_s *vtable,
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* Private Data
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****************************************************************************/
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/* This structure describes the simulated video controller */
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/* This structure describes the video controller */
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static const struct fb_videoinfo_s g_videoinfo =
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{
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@ -146,7 +146,7 @@ static const struct fb_videoinfo_s g_videoinfo =
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.nplanes = 1,
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};
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/* This structure describes the single, simulated color plane */
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/* This structure describes the single color plane */
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static const struct fb_planeinfo_s g_planeinfo =
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{
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@ -168,8 +168,8 @@ static struct fb_cursorsize_s g_csize;
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#endif
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#endif
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/* The framebuffer object -- There is no private state information in this simple
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* framebuffer simulation.
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/* The framebuffer object -- There is no private state information in this
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* framebuffer driver.
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*/
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struct fb_vtable_s g_fbobject =
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801
arch/arm/src/sama5/sam_lcd.c
Normal file
801
arch/arm/src/sama5/sam_lcd.c
Normal file
@ -0,0 +1,801 @@
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/****************************************************************************
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* arch/arm/src/sama5/sam_lcd.c
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/fb.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "chip/sam_syscon.h"
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#include "sam_gpio.h"
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#include "sam_lcd.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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#define SAM_LCD_CLK_PER_LINE \
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(CONFIG_SAM_LCD_HWIDTH + CONFIG_SAM_LCD_HPULSE + \
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CONFIG_SAM_LCD_HFRONTPORCH + CONFIG_SAM_LCD_HBACKPORCH)
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#define SAM_LCD_LINES_PER_FRAME \
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(CONFIG_SAM_LCD_VHEIGHT + CONFIG_SAM_LCD_VPULSE + \
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CONFIG_SAM_LCD_VFRONTPORCH + CONFIG_SAM_LCD_VBACKPORCH)
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#define SAM_LCD_PIXEL_CLOCK \
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(SAM_LCD_CLK_PER_LINE * SAM_LCD_LINES_PER_FRAME * \
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CONFIG_SAM_LCD_REFRESH_FREQ)
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/* Framebuffer characteristics in bytes */
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#if defined(CONFIG_SAM_LCD_BPP1)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 1 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP2)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 2 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP4)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 4 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP8)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 8 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP16)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 16 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP24)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 32 + 7) / 8)
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#elif defined(CONFIG_SAM_LCD_BPP16_565)
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 16 + 7) / 8)
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#else /* defined(CONFIG_SAM_LCD_BPP12_444) */
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# define SAM_STRIDE ((CONFIG_SAM_LCD_HWIDTH * 16 + 7) / 8)
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#endif
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#define SAM_FBSIZE (SAM_STRIDE * CONFIG_SAM_LCD_VHEIGHT)
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/* Delays */
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#define SAM_LCD_PWRDIS_DELAY 10000
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#define SAM_LCD_PWREN_DELAY 10000
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/* This structure provides the overall state of the LCDC */
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struct sam_lcdc_s
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{
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struct fb_vtable_s fboject; /* The framebuffer object */
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#ifdef CONFIG_FB_HWCURSOR
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struct fb_cursorpos_s cpos; /* Current cursor position */
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#ifdef CONFIG_FB_HWCURSORSIZE
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struct fb_cursorsize_s csize; /* Current cursor size */
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#endif
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#endif
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/* Debug stuff */
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#ifdef CONFIG_SAMA5_GMAC_REGDEBUG
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bool wrlast; /* True: Last access was a write */
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uintptr_t addrlast; /* Last address accessed */
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uint32_t vallast; /* Last value read or written */
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int ntimes; /* Number of consecutive accesses */
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#endif
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Register operations ******************************************************/
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#if defined(CONFIG_SAMA5_LCDC_REGDEBUG) && defined(CONFIG_DEBUG)
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static bool sam_checkreg(bool wr, uint32_t regval, uintptr_t address);
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static uint32_t sam_getreg(uintptr_t addr);
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static void sam_putreg(uintptr_t addr, uint32_t val);
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#else
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# define sam_getreg(addr) getreg32(addr)
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# define sam_putreg(addr,val) putreg32(val,addr)
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#endif
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/* Get information about the video controller configuration and the
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* configuration of each color plane.
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*/
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static int sam_getvideoinfo(FAR struct fb_vtable_s *vtable,
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FAR struct fb_videoinfo_s *vinfo);
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static int sam_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno,
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FAR struct fb_planeinfo_s *pinfo);
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/* The following is provided only if the video hardware supports RGB color
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* mapping
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*/
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#ifdef CONFIG_FB_CMAP
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static int sam_getcmap(FAR struct fb_vtable_s *vtable,
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FAR struct fb_cmap_s *cmap);
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static int sam_putcmap(FAR struct fb_vtable_s *vtable,
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FAR const struct fb_cmap_s *cmap);
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#endif
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/* The following is provided only if the video hardware supports a hardware
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* cursor
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*/
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#ifdef CONFIG_FB_HWCURSOR
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static int sam_getcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_cursorattrib_s *attrib);
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static int sam_setcursor(FAR struct fb_vtable_s *vtable,
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FAR struct fb_setcursor_s *setttings);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* This structure describes the simulated video controller */
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static const struct fb_videoinfo_s g_videoinfo =
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{
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.fmt = SAM_COLOR_FMT,
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.xres = CONFIG_SAM_LCD_HWIDTH,
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.yres = CONFIG_SAM_LCD_VHEIGHT,
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.nplanes = 1,
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};
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/* This structure describes the single, simulated color plane */
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static const struct fb_planeinfo_s g_planeinfo =
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{
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.fbmem = (FAR void *)CONFIG_SAM_LCD_VRAMBASE,
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.fblen = SAM_FBSIZE,
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.stride = SAM_STRIDE,
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.bpp = SAM_BPP,
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};
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/* This structure provides the overall state of the LCDC */
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struct sam_lcdc_s g_lcdc;
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_checkreg
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*
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* Description:
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* Check if the current register access is a duplicate of the preceding.
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*
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* Input Parameters:
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* regval - The value to be written
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* address - The address of the register to write to
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*
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* Returned Value:
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* true: This is the first register access of this type.
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* flase: This is the same as the preceding register access.
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*
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****************************************************************************/
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#ifdef CONFIG_SAMA5_LCDC_REGDEBUG
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static bool sam_checkreg(bool wr, uint32_t regval, uintptr_t address)
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{
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if (wr == g_lcdc.wrlast && /* Same kind of access? */
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regval == g_lcdc.vallast && /* Same value? */
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address == g_lcdc.addrlast) /* Same address? */
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{
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/* Yes, then just keep a count of the number of times we did this. */
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g_lcdc.ntimes++;
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return false;
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}
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else
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{
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/* Did we do the previous operation more than once? */
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if (g_lcdc.ntimes > 0)
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{
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/* Yes... show how many times we did it */
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lldbg("...[Repeats %d times]...\n", g_lcdc.ntimes);
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}
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/* Save information about the new access */
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g_lcdc.wrlast = wr;
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g_lcdc.vallast = regval;
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g_lcdc.addrlast = address;
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g_lcdc.ntimes = 0;
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}
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/* Return true if this is the first time that we have done this operation */
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return true;
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}
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#endif
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/****************************************************************************
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* Name: sam_getreg
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*
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* Description:
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* Read any 32-bit register using an absolute
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*
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****************************************************************************/
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#ifdef CONFIG_SAMA5_LCDC_REGDEBUG
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static uint32_t sam_getreg(uintptr_t address)
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{
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uint32_t regval = getreg32(address);
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if (sam_checkreg(false, regval, address))
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{
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lldbg("%08x->%08x\n", address, regval);
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}
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return regval;
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}
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#endif
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/****************************************************************************
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* Name: sam_putreg
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*
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* Description:
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* Write to any 32-bit register using an absolute address
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*
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****************************************************************************/
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#ifdef CONFIG_SAMA5_LCDC_REGDEBUG
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static void sam_putreg(uintptr_t address, uint32_t regval)
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{
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if (sam_checkreg(true, regval, address))
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{
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lldbg("%08x<-%08x\n", address, regval);
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}
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putreg32(regval, address);
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}
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#endif
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/****************************************************************************
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* Name: sam_getvideoinfo
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****************************************************************************/
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static int sam_getvideoinfo(FAR struct fb_vtable_s *vtable,
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FAR struct fb_videoinfo_s *vinfo)
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{
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gvdbg("vtable=%p vinfo=%p\n", vtable, vinfo);
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if (vtable && vinfo)
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{
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memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s));
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return OK;
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}
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gdbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: sam_getplaneinfo
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****************************************************************************/
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static int sam_getplaneinfo(FAR struct fb_vtable_s *vtable, int planeno,
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FAR struct fb_planeinfo_s *pinfo)
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{
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gvdbg("vtable=%p planeno=%d pinfo=%p\n", vtable, planeno, pinfo);
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if (vtable && planeno == 0 && pinfo)
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{
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memcpy(pinfo, &g_planeinfo, sizeof(struct fb_planeinfo_s));
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return OK;
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}
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gdbg("Returning EINVAL\n");
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return -EINVAL;
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}
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/****************************************************************************
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* Name: sam_getcmap
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****************************************************************************/
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#ifdef CONFIG_FB_CMAP
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static int sam_getcmap(FAR struct fb_vtable_s *vtable,
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FAR struct fb_cmap_s *cmap)
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{
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uint32_t *pal;
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uint32_t rgb;
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int last;
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int i;
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gvdbg("vtable=%p cmap=%p first=%d len=%d\n",
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vtable, cmap, cmap->first, cmap->len);
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DEBUGASSERT(vtable && cmap &&
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cmap->first < 256 && (cmap->first + cmap->len) < 256);
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pal = (uint32_t *)SAM_LCD_PAL(cmap->first >> 1);
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last = cmap->first + cmap->len;
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/* Handle the case where the first color starts on an odd boundary */
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i = cmap->first;
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if ((i & 1) != 0)
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{
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rgb = *pal++;
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i++;
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/* Save the odd palette value */
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cmap->red[i] = (rgb & LCD_PAL_R1_MASK) >> LCD_PAL_R1_SHIFT;
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cmap->green[i] = (rgb & LCD_PAL_G1_MASK) >> LCD_PAL_G1_SHIFT;
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cmap->blue[i] = (rgb & LCD_PAL_B1_MASK) >> LCD_PAL_B1_SHIFT;
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#ifdef CONFIG_FB_TRANSPARENCY
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cmap->transp[i] = 0;
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#endif
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}
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/* Handle even colors */
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for (; i < last; i += 2)
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{
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rgb = *pal++;
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/* Save the even palette value */
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cmap->red[i] = (rgb & LCD_PAL_R0_MASK) >> LCD_PAL_R0_SHIFT;
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cmap->green[i] = (rgb & LCD_PAL_G0_MASK) >> LCD_PAL_G0_SHIFT;
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cmap->blue[i] = (rgb & LCD_PAL_B0_MASK) >> LCD_PAL_B0_SHIFT;
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#ifdef CONFIG_FB_TRANSPARENCY
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cmap->transp[i] = 0;
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#endif
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/* Handle the case where the len ends on an odd boudary */
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if ((i + 1) < last)
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{
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/* Save the even palette value */
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cmap->red[i+1] = (rgb & LCD_PAL_R1_MASK) >> LCD_PAL_R1_SHIFT;
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cmap->green[i+1] = (rgb & LCD_PAL_G1_MASK) >> LCD_PAL_G1_SHIFT;
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cmap->blue[i+1] = (rgb & LCD_PAL_B1_MASK) >> LCD_PAL_B1_SHIFT;
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#ifdef CONFIG_FB_TRANSPARENCY
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cmap->transp[i+1] = 0;
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#endif
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}
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}
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: sam_putcmap
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****************************************************************************/
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#ifdef CONFIG_FB_CMAP
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static int sam_putcmap(FAR struct fb_vtable_s *vtable,
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FAR const struct fb_cmap_s *cmap)
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{
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uint32_t *pal;
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uint32_t rgb0;
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uint32_t rgb1;
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int last;
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int i;
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gvdbg("vtable=%p cmap=%p first=%d len=%d\n",
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vtable, cmap, cmap->first, cmap->len);
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DEBUGASSERT(vtable && cmap);
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pal = (uint32_t *)SAM_LCD_PAL(cmap->first >> 1);
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last = cmap->first + cmap->len;
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/* Handle the case where the first color starts on an odd boundary */
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i = cmap->first;
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if ((i & 1) != 0)
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{
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rgb0 = *pal;
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rgb0 &= (LCD_PAL_R0_MASK | LCD_PAL_G0_MASK | LCD_PAL_B0_MASK | LCD_PAL_I0);
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rgb1 |= ((uint32_t)cmap->red[i] << LCD_PAL_R0_SHIFT |
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(uint32_t)cmap->green[i] << LCD_PAL_G0_SHIFT |
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(uint32_t)cmap->blue[i] << LCD_PAL_B0_SHIFT);
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||||
/* Save the new palette value */
|
||||
|
||||
*pal++ = (rgb0 | rgb1);
|
||||
i++;
|
||||
}
|
||||
|
||||
/* Handle even colors */
|
||||
|
||||
for (; i < last; i += 2)
|
||||
{
|
||||
uint32_t rgb0 = ((uint32_t)cmap->red[i] << LCD_PAL_R0_SHIFT |
|
||||
(uint32_t)cmap->green[i] << LCD_PAL_G0_SHIFT |
|
||||
(uint32_t)cmap->blue[i] << LCD_PAL_B0_SHIFT);
|
||||
|
||||
/* Handle the case where the len ends on an odd boudary */
|
||||
|
||||
if ((i + 1) >= last)
|
||||
{
|
||||
rgb1 = *pal;
|
||||
rgb1 &= (LCD_PAL_R1_MASK | LCD_PAL_G1_MASK | LCD_PAL_B1_MASK | LCD_PAL_I1);
|
||||
}
|
||||
else
|
||||
{
|
||||
rgb1 = ((uint32_t)cmap->red[i+1] << LCD_PAL_R1_SHIFT |
|
||||
(uint32_t)cmap->green[i+1] << LCD_PAL_G1_SHIFT |
|
||||
(uint32_t)cmap->blue[i+1] << LCD_PAL_B1_SHIFT);
|
||||
}
|
||||
|
||||
/* Save the new pallete value */
|
||||
|
||||
*pal++ = (rgb0 | rgb1);
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_getcursor
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
static int sam_getcursor(FAR struct fb_vtable_s *vtable,
|
||||
FAR struct fb_cursorattrib_s *attrib)
|
||||
{
|
||||
gvdbg("vtable=%p attrib=%p\n", vtable, attrib);
|
||||
if (vtable && attrib)
|
||||
{
|
||||
#ifdef CONFIG_FB_HWCURSORIMAGE
|
||||
attrib->fmt = SAM_COLOR_FMT;
|
||||
#endif
|
||||
|
||||
gvdbg("pos: (x=%d, y=%d)\n", g_lcdc.cpos.x, g_lcdc.cpos.y);
|
||||
attrib->pos = g_lcdc.cpos;
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSORSIZE
|
||||
attrib->mxsize.h = CONFIG_SAM_LCD_VHEIGHT;
|
||||
attrib->mxsize.w = CONFIG_SAM_LCD_HWIDTH;
|
||||
|
||||
gvdbg("size: (h=%d, w=%d)\n", g_lcdc.csize.h, g_lcdc.csize.w);
|
||||
attrib->size = g_lcdc.csize;
|
||||
#endif
|
||||
return OK;
|
||||
}
|
||||
|
||||
gdbg("Returning EINVAL\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_setcursor
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
static int sam_setcursor(FAR struct fb_vtable_s *vtable,
|
||||
FAR struct fb_setcursor_s *setttings)
|
||||
{
|
||||
gvdbg("vtable=%p setttings=%p\n", vtable, setttings);
|
||||
if (vtable && setttings)
|
||||
{
|
||||
gvdbg("flags: %02x\n", settings->flags);
|
||||
if ((flags & FB_CUR_SETPOSITION) != 0)
|
||||
{
|
||||
g_lcdc.cpos = settings->pos;
|
||||
gvdbg("pos: (h:%d, w:%d)\n", g_lcdc.cpos.x, g_lcdc.cpos.y);
|
||||
}
|
||||
#ifdef CONFIG_FB_HWCURSORSIZE
|
||||
if ((flags & FB_CUR_SETSIZE) != 0)
|
||||
{
|
||||
g_lcdc.csize = settings->size;
|
||||
gvdbg("size: (h:%d, w:%d)\n", g_lcdc.csize.h, g_lcdc.csize.w);
|
||||
}
|
||||
#endif
|
||||
#ifdef CONFIG_FB_HWCURSORIMAGE
|
||||
if ((flags & FB_CUR_SETIMAGE) != 0)
|
||||
{
|
||||
gvdbg("image: (h:%d, w:%d) @ %p\n",
|
||||
settings->img.height, settings->img.width,
|
||||
settings->img.image);
|
||||
}
|
||||
#endif
|
||||
return OK;
|
||||
}
|
||||
|
||||
gdbg("Returning EINVAL\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_fbinitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the framebuffer video hardware
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int up_fbinitialize(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
int i;
|
||||
|
||||
gvdbg("Entry\n");
|
||||
|
||||
/* Configure PIO pins */
|
||||
/* Video data */
|
||||
|
||||
gvdbg("Configuring pins\n");
|
||||
|
||||
sam_configgpio(GPIO_LCD_VD0);
|
||||
sam_configgpio(GPIO_LCD_VD1);
|
||||
sam_configgpio(GPIO_LCD_VD2);
|
||||
sam_configgpio(GPIO_LCD_VD3);
|
||||
sam_configgpio(GPIO_LCD_VD4);
|
||||
sam_configgpio(GPIO_LCD_VD5);
|
||||
sam_configgpio(GPIO_LCD_VD6);
|
||||
sam_configgpio(GPIO_LCD_VD7);
|
||||
|
||||
sam_configgpio(GPIO_LCD_VD8);
|
||||
sam_configgpio(GPIO_LCD_VD9);
|
||||
sam_configgpio(GPIO_LCD_VD10);
|
||||
sam_configgpio(GPIO_LCD_VD11);
|
||||
sam_configgpio(GPIO_LCD_VD12);
|
||||
sam_configgpio(GPIO_LCD_VD13);
|
||||
sam_configgpio(GPIO_LCD_VD14);
|
||||
sam_configgpio(GPIO_LCD_VD15);
|
||||
|
||||
#if SAM_BPP > 16
|
||||
sam_configgpio(GPIO_LCD_VD16);
|
||||
sam_configgpio(GPIO_LCD_VD17);
|
||||
sam_configgpio(GPIO_LCD_VD18);
|
||||
sam_configgpio(GPIO_LCD_VD19);
|
||||
sam_configgpio(GPIO_LCD_VD20);
|
||||
sam_configgpio(GPIO_LCD_VD21);
|
||||
sam_configgpio(GPIO_LCD_VD22);
|
||||
sam_configgpio(GPIO_LCD_VD23);
|
||||
#endif
|
||||
|
||||
/* Other pins */
|
||||
|
||||
sam_configgpio(GPIO_LCD_DCLK);
|
||||
sam_configgpio(GPIO_LCD_LP);
|
||||
sam_configgpio(GPIO_LCD_FP);
|
||||
sam_configgpio(GPIO_LCD_ENABM);
|
||||
sam_configgpio(GPIO_LCD_PWR);
|
||||
|
||||
/* Turn on LCD clock */
|
||||
#warning Missing lobi
|
||||
|
||||
gvdbg("Configuring the LCD controller\n");
|
||||
|
||||
/* Disable the cursor */
|
||||
#warning Missing logic
|
||||
|
||||
/* Clear any pending interrupts */
|
||||
#warning Missing logic
|
||||
|
||||
/* Disable LCDC controller */
|
||||
#warning Missing logic
|
||||
|
||||
/* Initialize pixel clock */
|
||||
#warning Missing logic
|
||||
|
||||
/* Set the bits per pixel */
|
||||
#warning Missing logic
|
||||
|
||||
#if defined(CONFIG_SAM_LCD_BPP1)
|
||||
# warning Missing logic /* 1 bpp */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP2)
|
||||
# warning Missing logic /* 2 bpp */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP4)
|
||||
# warning Missing logic /* 4 bpp */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP8)
|
||||
# warning Missing logic /* 8 bpp */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP16)
|
||||
# warning Missing logic /* 16 bpp */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP24)
|
||||
# warning Missing logic /* 24-bit TFT panel only */
|
||||
#elif defined(CONFIG_SAM_LCD_BPP16_565)
|
||||
# warning Missing logic /* 16 bpp, 5:6:5 mode */
|
||||
#else /* defined(CONFIG_SAM_LCD_BPP12_444) */
|
||||
# warning Missing logic /* 12 bpp, 4:4:4 mode */
|
||||
#endif
|
||||
|
||||
/* TFT panel */
|
||||
#warning Missing logic
|
||||
|
||||
/* Select monochrome or color LCD */
|
||||
|
||||
#ifdef CONFIG_SAM_LCD_MONOCHROME
|
||||
#warning Missing logic
|
||||
|
||||
#else
|
||||
/* Select color LCD */
|
||||
#warning Missing logic
|
||||
|
||||
#endif /* CONFIG_SAM_LCD_MONOCHROME */
|
||||
|
||||
/* Initialize horizontal timing */
|
||||
#warning Missing logic
|
||||
|
||||
/* Initialize vertical timing */
|
||||
#warning Missing logic
|
||||
|
||||
/* Initialize clock and signal polarity */
|
||||
#warning Missing logic
|
||||
|
||||
/* Clear the display */
|
||||
#warning Missing logic
|
||||
|
||||
sam_lcdclear(CONFIG_SAM_LCD_BACKCOLOR);
|
||||
|
||||
#ifdef CONFIG_SAM_LCD_BACKLIGHT
|
||||
/* Turn on the back light */
|
||||
|
||||
sam_backlight(true);
|
||||
#endif
|
||||
|
||||
/* Enable LCD */
|
||||
|
||||
gvdbg("Enabling the display\n");
|
||||
#warning Missing logic
|
||||
|
||||
/* Enable LCD power */
|
||||
#warning Missing logic
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_fbgetvplane
|
||||
*
|
||||
* Description:
|
||||
* Return a a reference to the framebuffer object for the specified video
|
||||
* plane.
|
||||
*
|
||||
* Input parameters:
|
||||
* None
|
||||
*
|
||||
* Returned value:
|
||||
* Reference to the framebuffer object (NULL on failure)
|
||||
*
|
||||
***************************************************************************/
|
||||
|
||||
FAR struct fb_vtable_s *up_fbgetvplane(int vplane)
|
||||
{
|
||||
gvdbg("vplane: %d\n", vplane);
|
||||
if (vplane == 0)
|
||||
{
|
||||
return &g_lcdc.fboject;
|
||||
}
|
||||
else
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_fbinitialize
|
||||
*
|
||||
* Description:
|
||||
* Unitialize the framebuffer support
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void fb_uninitialize(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
int i;
|
||||
|
||||
/* We assume there is only one use of the LCD and so we do not need to
|
||||
* worry about mutually exclusive access to the LCD hardware.
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_SAM_LCD_BACKLIGHT
|
||||
/* Turn off the back light */
|
||||
|
||||
sam_backlight(false);
|
||||
#endif
|
||||
|
||||
/* Disable the LCD controller */
|
||||
#warning Missing logic
|
||||
|
||||
/* Initialize the g_lcdc data structure */
|
||||
|
||||
g_lcdc.fbobject.getvideoinfo = sam_getvideoinfo;
|
||||
g_lcdc.fbobject.getplaneinfo = sam_getplaneinfo;
|
||||
#ifdef CONFIG_FB_CMAP
|
||||
g_lcdc.fbobject.getcmap = sam_getcmap;
|
||||
g_lcdc.fbobject.putcmap = sam_putcmap;
|
||||
#endif
|
||||
#ifdef CONFIG_FB_HWCURSOR
|
||||
g_lcdc.fbobject.getcursor = sam_getcursor;
|
||||
g_lcdc.fbobject.setcursor = sam_setcursor;
|
||||
#endif
|
||||
|
||||
/* Turn off clocking to the LCD. modifyreg32() can do this atomically. */
|
||||
|
||||
modifyreg32(SAM_SYSCON_PCONP, SYSCON_PCONP_PCLCD, 0);
|
||||
return OK;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: sam_lcdclear
|
||||
*
|
||||
* Description:
|
||||
* This is a non-standard LCD interface just for the SAMA5. Clearing the display
|
||||
* in the normal way by writing a sequences of runs that covers the entire display
|
||||
* can be slow. Here the display is cleared by simply setting all VRAM memory to
|
||||
* the specified color.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
void sam_lcdclear(nxgl_mxpixel_t color)
|
||||
{
|
||||
int i;
|
||||
#if SAM_BPP > 16
|
||||
uint32_t *dest = (uint32_t*)CONFIG_SAM_LCD_VRAMBASE;
|
||||
|
||||
gvdbg("Clearing display: color=%08x VRAM=%08x size=%d\n",
|
||||
color, CONFIG_SAM_LCD_VRAMBASE,
|
||||
CONFIG_SAM_LCD_HWIDTH * CONFIG_SAM_LCD_VHEIGHT * sizeof(uint32_t));
|
||||
|
||||
#else
|
||||
uint16_t *dest = (uint16_t*)CONFIG_SAM_LCD_VRAMBASE;
|
||||
|
||||
gvdbg("Clearing display: color=%08x VRAM=%08x size=%d\n",
|
||||
color, CONFIG_SAM_LCD_VRAMBASE,
|
||||
CONFIG_SAM_LCD_HWIDTH * CONFIG_SAM_LCD_VHEIGHT * sizeof(uint16_t));
|
||||
#endif
|
||||
|
||||
for (i = 0; i < (CONFIG_SAM_LCD_HWIDTH * CONFIG_SAM_LCD_VHEIGHT); i++)
|
||||
{
|
||||
*dest++ = color;
|
||||
}
|
||||
}
|
||||
195
arch/arm/src/sama5/sam_lcd.h
Normal file
195
arch/arm/src/sama5/sam_lcd.h
Normal file
@ -0,0 +1,195 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/sama5/sam_lcd.h
|
||||
*
|
||||
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_SAMA5_SAM_LCDC_H
|
||||
#define __ARCH_ARM_SRC_SAMA5_SAM_LCDC_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
|
||||
#include <nuttx/nx/nxglib.h>
|
||||
|
||||
#include "chip/sam_lcd.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
/* Configuration */
|
||||
|
||||
/* Base address of the video RAM frame buffer */
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_VRAMBASE
|
||||
# define CONFIG_SAM_LCD_VRAMBASE ((uint32_t)SAM_EXTDRAM_CS0 + 0x00010000)
|
||||
#endif
|
||||
|
||||
/* LCD refresh rate */
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_REFRESH_FREQ
|
||||
# define CONFIG_SAM_LCD_REFRESH_FREQ (50) /* Hz */
|
||||
#endif
|
||||
|
||||
/* Bits per pixel / color format */
|
||||
|
||||
#undef SAM_COLOR_FMT
|
||||
#if defined(CONFIG_SAM_LCD_BPP1)
|
||||
# define SAM_BPP 1
|
||||
# define SAM_COLOR_FMT FB_FMT_Y1
|
||||
#elif defined(CONFIG_SAM_LCD_BPP2)
|
||||
# define SAM_BPP 2
|
||||
# define SAM_COLOR_FMT FB_FMT_Y2
|
||||
#elif defined(CONFIG_SAM_LCD_BPP4)
|
||||
# define SAM_BPP 4
|
||||
# define SAM_COLOR_FMT FB_FMT_Y4
|
||||
#elif defined(CONFIG_SAM_LCD_BPP8)
|
||||
# define SAM_BPP 8
|
||||
# define SAM_COLOR_FMT FB_FMT_Y8
|
||||
#elif defined(CONFIG_SAM_LCD_BPP16)
|
||||
# define SAM_BPP 16
|
||||
# define SAM_COLOR_FMT FB_FMT_Y16
|
||||
#elif defined(CONFIG_SAM_LCD_BPP24)
|
||||
# define SAM_BPP 32 /* Only 24 of 32 bits used for RGB */
|
||||
# define SAM_COLOR_FMT FB_FMT_RGB24
|
||||
# ifndef CONFIG_SAM_LCD_TFTPANEL
|
||||
# error "24 BPP is only available for a TFT panel"
|
||||
# endif
|
||||
#elif defined(CONFIG_SAM_LCD_BPP16_565)
|
||||
# define SAM_BPP 16
|
||||
# define SAM_COLOR_FMT FB_FMT_RGB16_565
|
||||
#elif defined(CONFIG_SAM_LCD_BPP12_444)
|
||||
# define SAM_BPP 1 2
|
||||
# define SAM_COLOR_FMT FB_FMT_RGB12_444
|
||||
#else
|
||||
# ifndef CONFIG_SAM_LCD_TFTPANEL
|
||||
# warning "Assuming 24 BPP"
|
||||
# define SAM_BPP 24
|
||||
# define CONFIG_SAM_LCD_BPP24 1
|
||||
# define SAM_COLOR_FMT FB_FMT_RGB24
|
||||
# else
|
||||
# warning "Assuming 16 BPP 5:6:5"
|
||||
# define SAM_BPP 16
|
||||
# define CONFIG_SAM_LCD_BPP16_565 1
|
||||
# define SAM_COLOR_FMT FB_FMT_RGB16_565
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* Background color */
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_BACKCOLOR
|
||||
# define CONFIG_SAM_LCD_BACKCOLOR 0 /* Initial background color */
|
||||
#endif
|
||||
|
||||
/* Horizontal video characteristics */
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_HWIDTH
|
||||
# define CONFIG_SAM_LCD_HWIDTH 480 /* Width in pixels */
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_HPULSE
|
||||
# define CONFIG_SAM_LCD_HPULSE 2
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_HFRONTPORCH
|
||||
# define CONFIG_SAM_LCD_HFRONTPORCH 5
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_HBACKPORCH
|
||||
# define CONFIG_SAM_LCD_HBACKPORCH 40
|
||||
#endif
|
||||
|
||||
/* Vertical video characteristics */
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_VHEIGHT
|
||||
# define CONFIG_SAM_LCD_VHEIGHT 272 /* Height in rows */
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_VPULSE
|
||||
# define CONFIG_SAM_LCD_VPULSE 2
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_VFRONTPORCH
|
||||
# define CONFIG_SAM_LCD_VFRONTPORCH 8
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SAM_LCD_VBACKPORCH
|
||||
# define CONFIG_SAM_LCD_VBACKPORCH 8
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
/* The SAMA5 LCD driver uses the common framebuffer interfaces declared in
|
||||
* include/nuttx/fb.h.
|
||||
*/
|
||||
|
||||
/************************************************************************************
|
||||
* Name: sam_lcdclear
|
||||
*
|
||||
* Description:
|
||||
* This is a non-standard LCD interface just for the SAMA5. Clearing the display
|
||||
* in the normal way by writing a sequences of runs that covers the entire display
|
||||
* can be slow. Here the dispaly is cleared by simply setting all VRAM memory to
|
||||
* the specified color.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
void sam_lcdclear(nxgl_mxpixel_t color);
|
||||
|
||||
/************************************************************************************
|
||||
* Name: sam_backlight
|
||||
*
|
||||
* Description:
|
||||
* If CONFIG_SAM_LCD_BACKLIGHT is defined, then the board-specific logic must
|
||||
* provide this interface to turn the backlight on and off.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_SAM_LCD_BACKLIGHT
|
||||
void sam_backlight(bool blon);
|
||||
#endif
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_SAMA5_SAM_LCDC_H */
|
||||
@ -63,7 +63,7 @@
|
||||
* Poll all UDP connections for available packets to send.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -88,7 +88,7 @@ static inline int uip_pollicmp(struct uip_driver_s *dev, uip_poll_callback_t cal
|
||||
* Poll all UDP connections for available packets to send.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -113,7 +113,7 @@ static inline int uip_polligmp(struct uip_driver_s *dev, uip_poll_callback_t cal
|
||||
* Poll all UDP connections for available packets to send.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -149,7 +149,7 @@ static int uip_polludpconnections(struct uip_driver_s *dev,
|
||||
* Poll all UDP connections for available packets to send.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -188,7 +188,7 @@ static inline int uip_polltcpconnections(struct uip_driver_s *dev,
|
||||
* TCP connection.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -242,7 +242,7 @@ static inline int uip_polltcptimer(struct uip_driver_s *dev,
|
||||
* out the packet.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
@ -301,7 +301,7 @@ int uip_poll(struct uip_driver_s *dev, uip_poll_callback_t callback)
|
||||
* out the packet.
|
||||
*
|
||||
* Assumptions:
|
||||
* This function is called from the CAN device driver and may be called from
|
||||
* This function is called from the MAC device driver and may be called from
|
||||
* the timer interrupt/watchdog handle level.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user